% shadow.bib: bibliography on shadow algorithms, % direct illumination, % area light sources, % soft shadows, % real time shadows, % texture mapping on graphics workstations, % and related topics including hemicubes and form factor calculation. % % Paul Heckbert, January 1997 % % many entries copied from the CS bibliography at % http://liinwww.ira.uka.de/bibliography/index.html % a lot of papers from michael wimmer % Daniel Scherzer has added some papers too ;) @InProceedings{EVL-2000-69, pages = "335--342", year = "2000", title = "Surfels: Surface Elements as Rendering Primitives", url = "http://visinfo.zib.de/EVlib/Show?EVL-2000-69", author = "Hanspeter Pfister and Matthias Zwicker and Jeroen van Baar and Markus Gross", abstract = "Surface elements (surfels) are a powerful paradigm to efficiently render complex geometric objects at interactive frame rates. Unlike classical surface discretizations, i.e., triangles or quadrilateral meshes, surfels are point primitives without explicit connectivity. Surfel attributes comprise depth, texture color, normal, and others. As a pre-process, an octree-based surfel representation of a geometric object is computed. During sampling, surfel positions and normals are optionally perturbed, and different levels of texture colors are prefiltered and stored per surfel. During rendering, a hierarchical forward warping algorithm projects surfels to a z-buffer. A novel method called visibility splatting determines visible surfels and holes in the z-buffer. Visible surfels are shaded using texture filtering, Phong illumination, and environment mapping using per-surfel normals. Several methods of image reconstruction, including supersampling, offer flexible speed-quality tradeoffs. Due to the simplicity of the operations, the surfel rendering pipeline is amenable for hardware implementation. Surfel objects offer complex shape, low rendering cost and high image quality, which makes them specifically suited for low-cost, real-time graphics, such as games.", editor = "Kurt Akeley", keywords = "Rendering Systems, Texture Mapping", series = "Annual Conference Series", booktitle = "Siggraph 2000, Computer Graphics Proceedings", publisher = "ACM Press / ACM SIGGRAPH / Addison Wesley Longman", } @TechReport{Martin:2001:TCIRT, author = "William Martin and Steven Parker and Peter Shirley and William Thompson", title = "Temporally Coherent Interactive Ray Tracing", institution = {Computer Science Department, University of Utah}, month = {May}, year = {2001}, number = {UUCS-01-005}, pdf_link = "http://www.cs.utah.edu/vissim/papers/coherent/UUCS-01-005.pdf", keywords = "UofU", } @techreport{simmons00dynamic, author = "Maryann Simmons", title = "A Dynamic Mesh Display Representation for the Holodeck Ray Cache System", number = "CSD-00-1090", month = "13,", pages = "34", year = "2000" } @INPROCEEDINGS{Lin2000, author = {Qingren Lin and Per-Erik Danielson and Bjorn Gudmunson}, month = {November}, year = 2000, title = {Frame-Coherent Volume Rendering}, booktitle = {Proceedings of the IASTED International Conferent, COMPUTER GRAPHICS AND IMAGING}, address = {Las Vegas, NV}, organization = {The International Association of Science and Technology for Development (IASTED)} } @InProceedings{Niepel:1995:SCD, author = "L. Niepel and J. Martinka and A. Ferko and P. Elias", title = "On Scene Complexity Definition for Rendering", booktitle = "Winter School of Computer Graphics 1995", year = "1995", month = feb, note = "held at University of West Bohemia, Plzen, Czech Republic, 14-18 February 1995", who = "Havran Vlastimil: REN-0001", } @TechReport{Snyder96, author = "J. M. Snyder", title = "Area Light Sources for Real-Time Graphics", pages = 30, institution = "Microsoft Research", year = 1996, month = mar, number = "MSR-TR-96-11", who = "Havran Vlastimil: REN-0002", } @InProceedings{Keller:1997:IR, author = "Alexander Keller", title = "Instant Radiosity", booktitle = "SIGGRAPH 97 Conference Proceedings", editor = "Turner Whitted", series = "Annual Conference Series", year = "1997", organization = "ACM SIGGRAPH", publisher = "Addison Wesley", month = Aug, pages = "49--56", note = "ISBN 0-89791-896-7", keywords = "Radiance equation, radiosity, shading, Monte Carlo integration, quasi-Monte Carlo integration, quasi-random walk, jittered low discrepancy sampling, hardware, accumulation buffer, realtime rendering algorithms, photorealism", annote = "We present a fundamental procedure for instant rendering from the radiance equation. Operating directly on the textured scene description, the very efficient and simple algorithm produces photorealistic images without any finite element kernel or solution discretization of the underlying integral equation. Rendering rates of a few seconds are obtained by exploiting graphics hardware, the deterministic technique of the quasi-random walk for the solution of the global illumination problem, and the new method of jittered low discrepancy sampling.", who = "Havran Vlastimil: REN-0003", } @Article{Tiede:1990:IMA, author = "Ulf Tiede and Karl Heinz Hoehne and Michael Bomans and Andreas Pommert and Martin Riemer and Gunnar Wiebecke", title = "Investigation of Medical {3D}-Rendering Algorithms", journal = "IEEE Computer Graphics and Applications", volume = "10", number = "2", pages = "41--53", month = mar, year = "1990", coden = "ICGADZ", ISSN = "0272-1716", bibdate = "Sat Jan 25 06:42:48 MST 1997", acknowledgement = ack-nhfb, affiliation = "Univ Hospital Eppendorf, Inst of Math \& Comput Sci in Med, Hamburg, West Ger", classification = "461; 723", journalabr = "IEEE Comput Graphics Appl", keywords = "Biomedical Engineering; Computer Graphics --- Medical Applications; Computer Programming --- Algorithms; Computerized Tomography; Gradient Shading; Magnetic Resonance --- Imaging Techniques; Shading Algorithms; Surface Rendering; surface rendering", who = "Havran Vlastimil: REN-0004", } @Article{George:1990:RRD, author = "David W. George and Fran{\c{c}}ois X. Sillion and Donald P. Greenberg", title = "Radiosity Redistribution for Dynamic Environments", journal = "IEEE Computer Graphics and Applications", volume = "10", number = "4", pages = "26--34", month = Jul, year = "1990", coden = "ICGADZ", ISSN = "0272-1716", bibdate = "Sat Jan 25 06:42:48 MST 1997", acknowledgement = ack-nhfb, affiliation = "Cornell Univ, Ithaca, NY, USA", annote = "They present a modification to the progressive radiosity to allow faster radiosity computation for animation sequences where objects can be added, moved, removed or their surface changed properties. When an object is added, radiosity is shot onto these new patches. A shadow volume is determined and a negative radiosity is shot to the patches in shadow. When an object is moved, it is removed from the scene and added to the new position, the radiosity being recomputed at each step. The radiosity recomputed is based on two strategies: redistribute first or interleave redistribution and propagation. Some heuristics are presented to choose the most important patches. This solution is good when just a few objects are involved but as the complexity of the scenes and mostly moving objects increases, the algorithm lost of its interest.", classification = "723", journalabr = "IEEE Comput Graphics Appl", keywords = "Computer Graphics; Computer Software --- Applications; Interactive; radiosity, animation, interaction, shadow, negative radiosity; Shading; Shadowing", who = "Havran Vlastimil: REN-0005", } @TechReport{EVL-1997-43, author = "M. Stamminger and Ph. Slusallek and H.-P. Seidel", title = "Bounded Clustering -- Finding Good Bounds on Clustered Light Transport", number = "2", institution = "Universit{\"a}t Erlangen-N{\"u}rnberg", year = "1997", note = "submitted for publication", abstract = "Clustering is a very efficient technique for applying finite element methods to the computation of global illumination of complex scenes. Both computation time and memory consumption can be reduced dramatically by grouping the primitives of the input scene into a hierarchy of clusters and allowing for light exchange between all levels of this hierarchy. One problem with clustering methods, however, has been to determine good bounds on the exchange of light between nodes in the hierarchy. In this paper, we propose a set of methods applicable to both clusters and surface patches that allows for computing conservative but tight error bounds on the light transport between clusters and surface patches. Their intrinsic properties can be exploited by splitting the computation of bounds into a set of related methods, applicable to any object. The resulting algorithm abstracts from the nature of the interacting objects -- light transport between clusters, planar patches and even curved surfaces can be efficiently approximated and bound by a single set of methods.", evlib-url = "http://infovis.zib.de:8000/Dienst/UI/2.0/Describe/evl.surfacerendering%2FEVL-1997-43", evlib-revision = "1st", who = "Havran Vlastimil: REN-0006", } @InProceedings{EVL-1997-38, author = "M. Stamminger and W. Nitsch and Ph. Slusallek", title = "Isotropic Clustering for Hierarchical Radiosity -- Implementation and Experiences", booktitle = "Proc. Fifth International Conference in Central Europe on Computer Graphics and Visualization '97", year = "1997", abstract = "Although Hierarchical Radiosity was a big step forward for finite element computations in the context of global illumination, the algorithm can hardly cope with scenes of more than medium complexity. The reason is that Hierarchical Radiosity requires an initial linking step, comparing all pairs of initial objects in the scene. These initial objects are then hierarchically subdivided in order to accurately represent the light transport between them. Isotropic Clustering, as introduced by Sillion, in addition creates a hierarchy above the input objects. Thus, it allows for the interaction of complete clusters of objects and avoids the costly initial linking step. In this paper, we describe our implementation of the isotropic clustering algorithm and discuss some of the problems that we encountered. The complexity of the algorithm is examined and clustering strategies are compared.", postscript-url = "ftp://faui90.informatik.uni-erlangen.de/pub/Publications/1997/Publ.1997.3.ps.gz", evlib-url = "http://infovis.zib.de:8000/Dienst/UI/2.0/Describe/evl.surfacerendering%2FEVL-1997-38", evlib-revision = "1st", who = "Havran Vlastimil: REN-0007", } @InProceedings{Shirley95-GIDE, author = "Peter Shirley and Bretton Wade and Philip M. Hubbard and David Zareski and Bruce Walter and Donald P. Greenberg", editor = "P. M. Hanrahan and W. Purgathofer", year = "1995", title = "Global {Illumination} via {Density} {Estimation}", booktitle = "Rendering Techniques '95 (Proceedings of the Sixth Eurographics Workshop on Rendering)", pages = "219--230", publisher = "Springer-Verlag", address = "New York, NY", comments = "ISBN 3-211-82733-1", who = "Havran Vlastimil: REN-0008", } @Article{Arvo:1990:PTI, author = "James Arvo and David Kirk", editor = "Forest Baskett", title = "Particle Transport and Image Synthesis", journal = "Computer Graphics", volume = "24", number = "4", pages = "63--66", month = Aug, year = "1990", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", annote = "The rendering equation is similar to the linear Boltzmann equation which has been widely studied in physics and nuclear engineering. Consequently, many of the powerful techniques which have been developed in these fields can be applied to problems in image synthesis. In this paper we adapt several statistical techniques commonly used in neutron transport to stachastic ray tracing and, more generally, to Monte Carlo solution of the rendering equation. First, we describe a technique known as {\em Russian roulette} which can be used to terminate the recursive tracing of rays without introducing statistical bias. We also examine the practice of creating ray trees in classical ray tracing in the light of a well-known technique in particle transport known as {\em splitting}. We show that neither ray trees nor paths as described in [Kaj86] constitute an optimal sampling plan in themselves and that a hybrid may be more efficient.", conference = "held in Dallas, Texas; 6--10 August 1990", keywords = "Boltzmann equation, Monte Carlo, particle transport, radiosity, ray tracing, rendering equation", who = "Havran Vlastimil: REN-0009", } @InProceedings{Interrante:1997:ISS, author = "Victoria L. Interrante", title = "Illustrating Surface Shape in Volume Data via Principal Direction-Driven 3{D} Line Integral Convolution", booktitle = "SIGGRAPH 97 Conference Proceedings", editor = "Turner Whitted", series = "Annual Conference Series", year = "1997", organization = "ACM SIGGRAPH", publisher = "Addison Wesley", month = Aug, pages = "109--116", note = "ISBN 0-89791-896-7", keywords = "visualization, transparent surfaces, shape representation, principal directions, stroke textures, line integral convolution, solid texture, isosurfaces, volume rendering", annote = "This paper describes how the set of principal directions and principal curvatures can be understood to define a natural {"}flow{"} over the surface of an object and, as such, can be used to guide the placement of the lines of a stroke texture that seeks to represent 3D shape in a perceptually intuitive way. The driving application for this work is the visualization of layered isovalue surfaces in volume data, where the particular identity of an individual surface is not generally known a priori and observers will typically wish to view a variety of different level surfaces from the same distribution, superimposed over underlying opaque structures. This paper describes how, by advecting an evenly distributed set of tiny opaque particles, and the empty space between them, via 3D line integral convolution through the vector field defined by the principal directions and principal curvatures of the level surfaces passing through each gridpoint of a 3D volume, it is possible to generate a single scan-converted solid stroke texture that can be used to illustrate the essential shape information of any level surface in the data. By redefining the length of the filter kernel according to the magnitude of the maximum principal curvature of the level surface at each point around which the convolution is applied, one can generate longer strokes over more the highly curved areas, where the directional information is both most stable and most relevant, and at the same time downplay the visual impact of the directional information indicated by the stroke texture in the flatter regions. In a voxel-based approach such as this one, stroke narrowness will be constrained by the resolution of the volume within which the texture is represented. However, by adaptively indexing into multiple pre-computed texture volumes, obtained by advecting particles of increasing sizes, one may selectively widen the strokes at any point by a variable amount, determined at the time of rendering, to reflect shading information or any other function defined over the volume data.", who = "Havran Vlastimil: REN-0010", } @InProceedings{salesin90a, author = "David Salesin and Jorge Stolfi", title = "Rendering {CSG} Models with a {ZZ}-Buffer", pages = "67--76", booktitle = "Computer Graphics (SIGGRAPH '90 Proceedings)", volume = "24", number = "4", year = "1990", month = Aug, editor = "Forest Baskett", conference = "held in Dallas, Texas; 6-10 August 1990", keywords = "ray tracing, antialiasing, constructive solid geometry, transparent surfaces, display buffers, visible-surface algorithms, rendering algorithms", annote = "The ZZ-buffer is a simple acceleration scheme for ray tracing that can be applied to a wide variety of scenes, including those with small features, textured and transparent surfaces, shadows and penubrae, and depth-of-field effects. In this paper, we describe how the ZZ-buffer algorithm can be adapted to the rendering of scenes defined by constructive solid geometry.", who = "Havran Vlastimil: REN-0011", } @InProceedings{oikarinen97a, author = "Jarkko OIKARINEN and Lasse JYRKINEN", title = "Maximum Intensity Projection by 3-Dimensional Seed Filling in View Lattice", pages = "173--183", booktitle = "Proceedings of {\em Compugraphics'97}", keywords = "volume visualization, three-dimensional (3D) Imaging, Ray Casting, Volume Rendering, Medical Application", year = "1997", month = dec, who = "Havran Vlastimil: REN-0012", } @Article{Brotman:1984:GSS, author = "Lynne Shapiro Brotman and Norman I. Badler", title = "Generating Soft Shadows with a Depth Buffer Algorithm", journal = "IEEE Computer Graphics and Applications", volume = "4", number = "10", pages = "5--12", month = oct, year = "1984", coden = "ICGADZ", ISSN = "0272-1716", bibdate = "Wed Jan 29 06:09:24 1997", acknowledgement = ack-nhfb, classification = "723", journalabr = "IEEE Comput Graphics Appl", keywords = "computer graphics; computer programming; computer-synthesized shadows; depth buffer algorithm; penumbra; shadow, I37 soft shadow, I37 shadow penumbra; soft shadows; visible surface rendering", who = "Havran Vlastimil: REN-0013", } @InProceedings{Fang:1996:DVR, title = "Deformable Volume Rendering by {3D} Texture Mapping and Octree Encoding", author = "Shiaofen Fang and Rajagopalan Srinivasan and Su Huang and Ragu Raghavan", booktitle = "IEEE Visualization '96", organization = "IEEE", year = "1996", month = oct, note = "ISBN 0-89791-864-9", who = "Havran Vlastimil: REN-0014", } @InProceedings{Reitan97a, author = "Paula J. Reitan", title = "3D Visualization of Truecolor Image Histograms", pages = "320--328", booktitle = "Proceedings of {\em Compugraphics'97}", keywords = "3D tree drawing, 3D data structures, truecolor image histograms", year = "1997", month = dec, who = "Havran Vlastimil: REN-0015", } @InProceedings{EVL-1997-127, author = "Bruce Walter and G{\"{u}}n Alppay and Eric P. F. Lafortune and Sebastian Fernandez and Donald P. Greenberg", editor = "Turner Whitted", title = "Fitting Virtual Lights For Non-Diffuse Walkthroughs", booktitle = "SIGGRAPH 97 Conference Proceedings", series = "Annual Conference Series", pages = "45--48", publisher = "Addison Wesley", month = Aug, year = "1997", keywords = "interactive walkthroughs, non-diffuse appearance, global illumination, Phong shading", language = "en", abstract = "This paper describes a technique for using a simple shading method, such as the Phong lighting model, to approximate the appearance calculated by a more accurate method. The results are then suitable for rapid display using existing graphics hardware and portable via standard graphics API's. Interactive walkthroughs of view-independent nondiffuse global illumination solutions are explored as the motivating application.", note = "ISBN 0-89791-896-7", evlib-url = "http://visinfo.zib.de:80/Dienst/UI/2.0/Describe/evl.computergraphics%2FEVL-1997-127", evlib-revision = "1st", organization = "ACM SIGGRAPH", who = "Havran Vlastimil: REN-0016", } @Article{Verbeck:1984:CLD, author = "Channing P. Verbeck and Donald P. Greenberg", title = "A Comprehensive Light-Source Description for Computer Graphics", journal = "IEEE Computer Graphics and Applications", volume = "4", number = "7", pages = "66--75", month = Jul, year = "1984", coden = "ICGADZ", ISSN = "0272-1716", bibdate = "Sat Jan 25 06:42:48 MST 1997", acknowledgement = ack-nhfb, classification = "723; 741", journalabr = "IEEE Comput Graphics Appl", keywords = "computer generated images; computer graphics --- Imaging Techniques; light sources; light, I34 Ray Tracing, I37 Light-Source Description; ray-tracing system", who = "Havran Vlastimil: REN-0017", } @InProceedings{Lafortune95-FTRVM, author = "Eric P. Lafortune and Yves D. Willems", editor = "P. M. Hanrahan and W. Purgathofer", year = "1995", title = "A 5{D} {Tree} to {Reduce} the {Variance} of {Monte} {Carlo} {Ray} {Tracing}", booktitle = "Rendering Techniques '95 (Proceedings of the Sixth Eurographics Workshop on Rendering)", pages = "11--20", publisher = "Springer-Verlag", address = "New York, NY", keywords = "Monte Carlo, ray tracing, illumination caching", comments = "ISBN 3-211-82733-1", who = "Havran Vlastimil: REN-0018", } @InProceedings{Tobler:1997:HSA, author = "Robert F. Tobler and Alexander Wilkie and Martin Feda and Werner Purgathofer", title = "A Hierarchical Subdivision Algorithm for Stochastic Radiosity Methods", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wein", address = "New York City, NY", month = jun, pages = "193--204", note = "ISBN 3-211-83001-4", keywords = "radiosity, stochastic, Monte Carlo, hierarchical, Galerkin", annote = "The algorithm proposed in this paper uses a stochastic approach to incrementally calculate the illumination function over a surface. By tracking the illumination function at different levels of meshing resolution, it is possible to get a measure for the quality of the current representation, and to adoptively subdivide in places with inadequate accuracy. With this technique a hierarchical mesh that is based on the stochastic evaluation of global illumination is generated.", who = "Havran Vlastimil: REN-0019", } @TechReport{EVL-1995-04, author = "E. Gr{\"o}ller and W. Purgathofer", title = "Coherence in Computer Graphics", type = "Research paper", institution = "Institute for Computer Graphics, Technical University Vienna", year = "1995", abstract = "Coherence denotes similarities between items or entities. It describes the extent to which these items or entities are locally constant. An introduction to coherence and a survey of various types of coherence, that are used in computer graphics, are given. Techniques and data structures for exploiting coherence in computer graphics are described. Incremental techniques, bounding volume schemes, subdivision techniques and several geometric data structures are discussed in more detail. Applications of coherence principles to computer graphics are treated and a survey of previous research is done.", postscript-url = "ftp://ftp.cg.tuwien.ac.at/pub/TR/95/TR-186-2-95-04Paper.ps.gz", evlib-url = "http://infovis.zib.de:8000/Dienst/UI/2.0/Describe/evl.computergraphics%2FEVL-1995-11", evlib-revision = "1st", who = "Havran Vlastimil: REN-0020", } @InProceedings{Veach94-BELT, author = "Eric Veach and Leonidas Guibas", month = jun, year = "1994", title = "Bidirectional {Estimators} for {Light} {Transport}", booktitle = "Fifth Eurographics Workshop on Rendering", pages = "147--162", address = "Darmstadt, Germany", keywords = "Monte Carlo, sampling noise, variance reduction, light transport, importance transport", who = "Havran Vlastimil: REN-0021", } @TechReport{EVL-1997-19, author = "Dieter Schmalstieg", title = "A Survey of Advanced Interactive 3-{D} Graphics Techniques", type = "Research paper", institution = "Institute of Computer Graphics, Vienna University of Technology", year = "1997", abstract = "Interactive 3-D Graphics are a new emerging field enabled by powerful and cost-effective computer systems. The goal is to present a three-dimensional image of a scene stored in a computer to give a human user the impression that he or she is looking at a virtual world. In producing such an illusion, we would like to always be able to produce images that match or exceed the limits of human visual perception in all aspects. Unfortunately, limitations in the performance of the image generators we employ for this task defeat this goal. The ever-increasing demands of applications make it unlikely that this situation will ever change significantly. Working solutions require us to trade off image fidelity for graphical complexity and performance of the application. In doing so, it is vital to understand those human factors that dominate the perception of interactive 3-D computer graphics.", postscript-url = "ftp://ftp.cg.tuwien.ac.at/pub/TR/97/TR-186-2-97-05Paper.ps.gz", evlib-url = "http://infovis.zib.de:8000/Dienst/UI/2.0/Describe/evl.computergraphics%2FEVL-1997-19", evlib-revision = "1st", evlib-postscript-md5 = "7f854b51437fbc452dd968e6dfc5d18b", who = "Havran Vlastimil: REN-0022", } @Article{Woo:1990:SSA, author = "Andrew Woo and Pierre Poulin and Alain Fournier", title = "A Survey of Shadow Algorithms", journal = "IEEE Computer Graphics and Applications", volume = "10", number = "6", pages = "13--32", month = nov, year = "1990", coden = "ICGADZ", ISSN = "0272-1716", bibdate = "Sat Jan 25 06:42:48 MST 1997", acknowledgement = ack-nhfb, affiliation = "Alias Research, Toronto, Ont, Canada", annote = "Essential to realistic and visually appealing images, shadows are difficult to compute in most display environments. This survey characterizes the various types of shadows. It also describes most existing shadow algorithms and discusses their complexities, advantages, and shortcomings. We examine hard shadows, soft shadows, shadows of transparent objects, and shadows for complex modeling primitives. For each type, we examine shadow algorithms within various rendering techniques. \\ This survey attempts to provide readers with enough background and insight on the various methods to allow them to choose the algorithm best suited to their needs. We also hope that our analysis will help identify the areas that need more research and point to possible solutions.", classification = "723; 741", journalabr = "IEEE Comput Graphics Appl", keywords = "Bidirectional Ray Tracing; Computer Graphics; Hard Shadow Generation; Image Processing; Image Rendering; Shadow Algorithms; Shadow Volumes; Soft Shadow Generation; survey", who = "Havran Vlastimil: REN-0023", } @InProceedings{Greenberg:1997:FRI, author = "Donald P. Greenberg and Kenneth E. Torrance and Peter Shirley and James Arvo and James A. Ferwerda and Sumanta Pattanaik and Eric P. F. Lafortune and Bruce Walter and Sing-Choong Foo and Ben Trumbore", title = "A Framework for Realistic Image Synthesis", booktitle = "SIGGRAPH 97 Conference Proceedings", editor = "Turner Whitted", series = "Annual Conference Series", year = "1997", organization = "ACM SIGGRAPH", publisher = "Addison Wesley", month = Aug, pages = "477--494", note = "ISBN 0-89791-896-7", keywords = "Realistic Image Synthesis, Light Reflection, Perception", annote = "Our goal is to develop physically based lighting models and perceptually based rendering procedures for computer graphics that will produce synthetic images that are visually and measurably indistinguishable from real-world images. Fidelity of the physical simulation is of primary concern. Our research framework is subdivided into three sub-sections: the local light reflection model, the energy transport simulation, and the visual display algorithms. The first two subsections are physically based, and the last is perceptually based. We emphasize the comparisons between simulations and actual measurements, the difficulties encountered, and the need to utilize the vast amount of psychophysical research already conducted. Future research directions are enumerated. We hope that results of this research will help establish a more fundamental, scientific approach for future rendering algorithms. This presentation describes a chronology of past research in global illumination and how parts of our new system are currently being developed.", who = "Havran Vlastimil: REN-0024", } @InProceedings{Stewart:1997:HVT, author = "A. James Stewart", title = "Hierarchical Visibility in Terrains", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wein", address = "New York City, NY", month = jun, pages = "217--228", note = "ISBN 3-211-83001-4", annote = "This paper describes a hierarchical visibility technique that significantly accelerates terrain rendering. With this technique, large parts of the terrain that are hidden from the viewpoint are culled, thus avoiding the expense of uselessly sending them down the graphics pipeline (only to find in the z-buffer step that they are hidden). The hierarchical visibility technique has been implemented in a multiresolution terrain rendering algorithm and experimental results show very large speedups in some situations.", who = "Havran Vlastimil: REN-0025", } @Article{Sillion:1997:EIM, author = "Francois Sillion and George Drettakis and Benoit Bodelet", title = "Efficient Impostor Manipulation for Real-Time Visualization of Urban Scenery", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "16", number = "3", pages = "C207--C218", month = sep # " 4--8", year = "1997", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Tue Mar 17 15:44:38 MST 1998", acknowledgement = ack-nhfb, affiliation = "INRIA", affiliationaddress = "Grenoble, Fr", classification = "722.4; 723; 723.2; 723.3; 723.5", journalabr = "Comput Graphics Forum", keywords = "Algorithms; Computer simulation; Database systems; Image segmentation; Interactive computer systems; Interactive visualization systems; Real time systems; Three dimensional computer graphics; Urban scenes; Virtual reality; Visualization", who = "Havran Vlastimil: REN-0026", } @InProceedings{Schaufler:1997:NRP, author = "Gernot Schaufler", title = "Nailboards: {A} Rendering Primitive for Image Caching in Dynamic Scenes", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wein", address = "New York City, NY", month = jun, pages = "151--162", note = "ISBN 3-211-83001-4", annote = "This paper proposes a simple augmentation to texture mapping hardware which produces the correct depth buffer content and hence correct visibility when replacing complex objects by partially transparent textured polygons. Rendering such polygons exploits frame-to-frame coherence in image sequences of dynamic scenes. Correct depth values are obtained by keeping a small depth delta for every texel which represents the texel's deviation from the textured polygon. The polygon's depth values are modified at every pixel to match the depicted object's geometry.", who = "Havran Vlastimil: REN-0027", } @InProceedings{Bishop:1994:FRD, author = "Gary Bishop and Henry Fuchs and Leonard Mc{M}illan and Ellen J. {Scher Zagier}", editor = "Andrew Glassner", booktitle = "Proceedings of SIGGRAPH '94 (Orlando, Florida, July 24--29, 1994)", title = "Frameless Rendering: Double Buffering Considered Harmful", organization = "ACM SIGGRAPH", publisher = "ACM Press", pages = "175--176", month = Jul, year = "1994", note = "ISBN 0-89791-667-0", series = "Computer Graphics Proceedings, Annual Conference Series", who = "Havran Vlastimil: REN-0028", } @InProceedings{kajiya86a, author = "J. T. Kajiya", title = "The Rendering Equation", pages = "143--150", booktitle = "Computer Graphics (SIGGRAPH '86 Proceedings)", volume = "20", number = "4", year = "1986", month = Aug, editor = "David C. Evans and Rusell J. Athay", conference = "held in Dallas, Texas, August 18--22, 1986", keywords = "I37 rendering, I37 ray tracing, I37 radiosity, shading, diffuse reflection, radiosity", annote = "We present an integral equation which generalizes a variety of known rendering algorithms. In the course of discussing a Monte Carlo solution a new form of variance reduction is presented, called hierarchical sampling, and a number of elaborations are given that show that it may be an efficient new technique for a wide variety of Monte Carlo procedures. The resulting rendering algorithm extends the range of optical phenomena which can be effectively simulated.", who = "Havran Vlastimil: REN-0029", } @inproceedings{CDRLSS-gi96, title = "Fast rendering of complex environments using a spatial hierarchy", author = "Bradford Chamberlain and Tony DeRose and Dani Lischinski and David Salesin and John Snyder", booktitle = "Graphics Interface", year = "1996", month = "May", pages = "132--141", who = "Havran Vlastimil: REN-0030", } @InProceedings{sillion89a, author = "Francois Sillion and Claude Puech", title = "A General Two-Pass Method Integrating Specular and Diffuse Reflection", pages = "335--344", booktitle = "Computer Graphics (SIGGRAPH '89 Proceedings)", volume = "23", number = "3", year = "1989", month = Jul, editor = "Jeffrey Lane", conference = "held in Boston, Massachusetts; 31 July -- 4 August 1989", keywords = "radiosity, interreflection, two-pass method, extended form factors, z-buffer, progressive refinement, global illumination, ray tracing", annote = "We analyze some recent approaches to the global illumination problem by introducing the corresponding {\em reflection operators}, and we demonstrate the advantages of a two-pass method. A generalization of this system introduced by Wallace {\em et al}.\ at Siggraph '87 to integrate diffuse as well as specular reflection is presented. It is based on the calculation of {\em extended form-factors}, which allows arbitrary geometries to be used in the scene description, as well as refraction effects. We also present a new sampling method for the calculation of form-factors, which is an alternative to the {\em hemi-cube} technique introduced by Cohen and Greenberg for radiosity calculations. This method is particularly well suited to the extended form-factors calculation. The problem of interactive display of the picture being created is also addressed by using hardware-assisted projections and image composition to recreate a complete specular view of the scene.", who = "Havran Vlastimil: REN-0031", } @Article{Gibson:1996:EHR, author = "S. Gibson and R. J. Hubbold", title = "Efficient Hierarchical Refinement and Clustering for Radiosity in Complex Environments", journal = "Computer Graphics Forum", year = "1996", volume = "15", number = "5", pages = "297--310", note = "ISSN 0167-7055", keywords = "radiosity, hierarchical radiosity, error bounds, clustering", annote = "Generating accurate radiosity solutions of very complex environments is a time-consuming problem. We present a rapid hierarchical algorithm that enables such solutions to be computed quickly and efficiently. Firstly, a new technique for bouncing the error in the transfer of radiosity between surfaces is discussed, incorporating bounds on form factors, visibility, irradiance, and reflectance over textured surfaces. This technique is then applied to the problem of bounding radiosity transfer between clusters of surfaces, leading to a fast, practical clustering algorithm that builds on the previous work of Sillion. Volumes are used to represent clusters of small surfaces, but unlike previous algorithms, the orientations of surfaces inside each cluster are accounted for in both the error bound and radiosity transfer. This enables an accurate solution to be generated very efficiently, and results are presented demonstrating the performance of the algorithm on a variety of complex models, one containing almost a quarter of a million initial surfaces.", who = "Havran Vlastimil: REN-0032", } @InProceedings{Smits:1994:CAR, author = "Brian Smits and James Arvo and Donald Greenberg", editor = "Andrew Glassner", booktitle = "Proceedings of SIGGRAPH '94 (Orlando, Florida, July 24--29, 1994)", title = "A Clustering Algorithm for Radiosity in Complex Environments", organization = "ACM SIGGRAPH", publisher = "ACM Press", pages = "435--442", month = Jul, year = "1994", note = "ISBN 0-89791-667-0", series = "Computer Graphics Proceedings, Annual Conference Series", who = "Havran Vlastimil: REN-0033", } @InProceedings{Jensen95-EFSPM, author = "Henrik Wann Jensen and Niels J. Christensen", editor = "Harold P. Santo", month = dec # " 12,", year = "1995", title = "Efficiently {Rendering} {Shadows} {Using} the {Photon} {Map}", booktitle = "Edugraphics + Compugraphics Proceedings", pages = "285--291", publisher = "GRASP- Graphic Science Promotions \& Publications", address = "P.O. Box 4076, Massama, 2745 Queluz, Portugal", comments = "ISBN 972-8342-00-4", who = "Havran Vlastimil: REN-0034", } @InProceedings{Huerta97, author = "Joaquin Huerta and Miguel Chover and Jose Ribelles and Ricardo Quiros", editor = "Harold P. Santo", month = dec # " 15,", year = "1997", title = "Constructing and Rendering of Multiresolution Binary Space Partitioning Trees", booktitle = "Edugraphics + Compugraphics Proceedings", pages = "212--221", publisher = "GRASP- Graphic Science Promotions \& Publications", address = "P.O. Box 4076, Massama, 2745 Queluz, Portugal", who = "Havran Vlastimil: REN-0035", } @InProceedings{Teller:1994:POL, author = "Seth Teller and Celeste Fowler and Thomas Funkhouser and Pat Hanrahan", editor = "Andrew Glassner", booktitle = "Proceedings of SIGGRAPH '94 (Orlando, Florida, July 24--29, 1994)", title = "Partitioning and Ordering Large Radiosity Computations", organization = "ACM SIGGRAPH", publisher = "ACM Press", pages = "443--450", month = Jul, year = "1994", note = "ISBN 0-89791-667-0", series = "Computer Graphics Proceedings, Annual Conference Series", who = "Havran Vlastimil: REN-0036", } @InProceedings{EVL-1997-128, author = "Eric Veach and Leonidas J. Guibas", editor = "Turner Whitted", title = "Metropolis Light Transport", booktitle = "SIGGRAPH 97 Conference Proceedings", series = "Annual Conference Series", pages = "65--76", publisher = "Addison Wesley", month = Aug, year = "1997", keywords = "global illumination, lighting simulation, radiative heat transfer, physically-based rendering, Monte Carlo integration, variance reduction, Metropolis-Hastings algorithm, Markov Chain Monte Carlo (MCMC) methods", language = "en", abstract = "We present a new Monte Carlo method for solving the light transport problem, inspired by the Metropolis sampling method in computational physics. To render an image, we generate a sequence of light transport paths by randomly mutating a single current path (e.g. adding a new vertex to the path). Each mutation is accepted or rejected with a carefully chosen probability, to ensure that paths are sampled according to the contribution they make to the ideal image. We then estimate this image by sampling many paths, and recording their locations on the image plane. Our algorithm is unbiased, handles general geometric and scattering models, uses little storage, and can be orders of magnitude more efficient than previous unbiased approaches. It performs especially well on problems that are usually considered difficult, e.g. those involving bright indirect light, small geometric holes, or glossy surfaces. Furthermore, it is competitive with previous unbiased algorithms even for relatively simple scenes. The key advantage of the Metropolis approach is that the path space is explored locally, by favoring mutations that make small changes to the current path. This has several consequences. First, the average cost per sample is small (typically only one or two rays). Second, once an important path is found, the nearby paths are explored as well, thus amortizing the expense of finding such paths over many samples. Third, the mutation set is easily extended. By constructing mutations that preserve certain properties of the path (e.g. which light source is used) while changing others, we can exploit various kinds of coherence in the scene. It is often possible to handle difficult lighting problems efficiently by designing a specialized mutation in this way.", note = "ISBN 0-89791-896-7", evlib-url = "http://visinfo.zib.de:80/Dienst/UI/2.0/Describe/evl.computergraphics%2FEVL-1997-128", evlib-revision = "1st", organization = "ACM SIGGRAPH", who = "Havran Vlastimil: REN-0037", } @InProceedings{Jensen:1996:GIU, author = "Henrik Wann Jensen", title = "Global Illumination using Photon Maps", booktitle = "Eurographics Rendering Workshop 1996", editor = "Xavier Pueyo and Peter Schr{\"{o}}der", year = "1996", organization = "Eurographics", publisher = "Springer Wein", address = "New York City, NY", month = jun, pages = "21--30", note = "ISBN 3-211-82883-4", keywords = "Global Illumination, Photon Maps, Filtering, Monte Carlo Ray Tracing", annote = "This paper presents a two pass global illumination method based on the concept of photon maps. It represents a significant improvement of a previously described approach both with respect to speed, accuracy and versatility. In the first pass two photon maps are created by emitting packets of energy (photons) from the light sources and storing these as they hit surfaces within the scene. We use one high resolution caustics photon map to render caustics that are visualized directly and one low resolution photon map that is used during the rendering step. The scene is rendered using a distribution ray tracing algorithm optimized by using the information in the photon maps. Shadow photons are used to render shadows more efficiently and the directional information in the photon map is used to generate more optimal sampling directions and to limit the recursion in the distribution ray tracer by providing an estimate of the radiance on all surfaces with the exception of specular and highly glossy surfaces. Noise and blur at discontinuities in the radiance estimate is reduced by using a cone filter. The results presented demonstrate global illumination in scenes containing procedural objects and surfaces with diffuse and glossy reflection models. The implementation is also compared with the Radiance program.", who = "Havran Vlastimil: REN-0038", } @InProceedings{Jansen94a, author = "E. Reinhard and Lucas U. Tijssen and Frederik W. Jansen", title = "Environment Mapping for Efficient Sampling of the Diffuse Interreflection", year = 1994, booktitle = "Proc. of 5th Eurographics Workshop on Rendering 1994", pages = "401--404", who = "Havran Vlastimil: REN-0039", } @inproceedings{McCoolHarwood-gi97, title = "Probability trees", author = "Michael D. McCool and Peter K. Harwood", booktitle = "Graphics Interface '97", year = "1997", month = "May", pages = "37--46", who = "Havran Vlastimil: REN-0040", } @inproceedings{MFC-gi97, title = "Multiresolution rendering of complex botanical scenes", author = "Dana Marshall and Donald S. Fussell and A.T. Campbell,~III", booktitle = "Graphics Interface '97", year = "1997", month = "May", pages = "97--104", who = "Havran Vlastimil: REN-0041", } @Misc{Fortune, author = "Steven Fortune", title = "A Beam-Tracing Algorithm for Prediction of Indoor Radio Propagation", year = "19??", month = "??", pages = "10", who = "Havran Vlastimil: REN-0042", } @PhdThesis{Arvo95-AMSLT, author = "James Arvo", month = dec, year = "1995", title = "Analytic {Methods} for {Simulated} {Light} {Transport}", institution = "Yale University", type = "Ph.{D}. thesis", who = "Havran Vlastimil: REN-0043", } @Article{Wilhelms:1991:CPA, author = "Jane Wilhelms and Allen Van Gelder", editor = "Thomas W. Sederberg", title = "A coherent projection approach for direct volume rendering", journal = "Computer Graphics", volume = "25", number = "4", pages = "275--284", month = Jul, year = "1991", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", conference = "held in Las Vegas, Nevada; 28 July -- 2 August 1991", who = "Havran Vlastimil: REN-0044", } @Article{Levoy:1990:VRA, author = "Marc Levoy", title = "Volume Rendering by Adaptive Refinement", journal = "The Visual Computer", pages = "2--7", volume = "6", number = "1", month = feb, year = "1990", keywords = "volume rendering, voxel, adaptive refinement, adaptive sampling, ray tracing", annote = "{\em Volume rendering} is a technique for visualizing sampled scalar functions of three spatial dimensions by computing 2D projections of a colored semi-transparent gel. This paper presents a volume-rendering algorithm, in which imge quality is adaptively refined over time. An initial image is generated by casting a small number of rays into the data, less than one ray per pixel, and interpolating between the resulting colors. Subsequent images are generated by alternately casting more rays and interpolating. The usefulness of these rays is maximized by distributing them according to measures of loal image complexity. Examples from two applications are given: molecular graphics and medical imaging.", who = "Havran Vlastimil: REN-0045", } @Article{Hsu:1995:SDA, author = "Siu-Chi Hsu and Tien-Tsin Wong", title = "Simulating Dust Accumulation", journal = "IEEE Computer Graphics and Applications", volume = "15", number = "1", pages = "18--22", month = jan, year = "1995", coden = "ICGADZ", ISSN = "0272-1716", bibdate = "Sat Jan 25 06:42:48 MST 1997", acknowledgement = ack-nhfb, affiliation = "Chinese Univ. of Hong Kong, Shatin, Hong Kong", classification = "451.1; 723.5; 921.6; 931.2", journalabr = "IEEE Comput Graphics Appl", keywords = "Approximation theory; Computer graphics; Computer simulation; Dust; Dust accumulation; Image analysis; Interpolation; Mathematical models; Natural sciences computing; Ray tracing; Rendering; Scraping effects; Surface exposure; Surface properties; Surfaces; Textures", who = "Havran Vlastimil: REN-0046", } @Article{Rushmeier:1995:VRP, author = "Holly Rushmeier and Anthony Hamins and Mun Young Choi", title = "Volume rendering of pool fire data", journal = "IEEE Computer Graphics and Applications", volume = "15", number = "4", pages = "62--67", month = Jul, year = "1995", coden = "ICGADZ", ISSN = "0272-1716", bibdate = "Sat Jan 25 06:42:48 MST 1997", acknowledgement = ack-nhfb, affiliation = "Natl Inst of Standards and Technology", affiliationaddress = "Gaithersburg, MD, USA", classification = "723.5; 914.2; 921.2; 921.6", journalabr = "IEEE Comput Graphics Appl", keywords = "Calculations; Computer graphics; Fires; Imaging techniques; Integration; Line integration; Mathematical models; Pool fires; Radiation effects; Ray casting; Two dimensional; Visualization; Volume rendering", who = "Havran Vlastimil: REN-0047", } @Article{Woo:1996:IRR, author = "Andrew Woo and Andrew Pearce and Marc Ouellette", title = "It's really not a rendering bug, you see.", journal = "IEEE Computer Graphics and Applications", volume = "16", number = "5", pages = "21--25", month = sep, year = "1996", coden = "ICGADZ", ISSN = "0272-1716", bibdate = "Sat Jan 25 06:42:48 MST 1997", acknowledgement = ack-nhfb, affiliation = "Alias-Wavefront, Toronto, Ont., Canada", classification = "721.1; 723.1; 723.5; 741.1; 921.4; 921.6", journalabr = "IEEE Comput Graphics Appl", keywords = "Algorithms; Approximation theory; Color computer graphics; Computational geometry; Computational methods; Computer graphics; Convergence of numerical methods; Digital arithmetic; Errors; Gouraud shading; Image artifacts; Interpolation; Light reflection; Lighting; Liner interpolation; Mirror reflection; Mirrors; Numerical instability; Phong shading; Planar equation; Polygons; Program debugging; Ray plane intersection equation; Ray tracing; Rendering artifacts; Shadowing; Texture mapping; Three dimensional computer graphics; Visibility", who = "Havran Vlastimil: REN-0048", } @InProceedings{Nechvile:1996:FFE, author = "K. Nechvile and J. Sochor", title = "Form-factor Evaluation with Regional {BSP} Trees", booktitle = "Winter School of Computer Graphics 1996", year = "1996", month = feb, note = "held at University of West Bohemia, Plzen, Czech Republic, 12-16 February 1996", who = "Havran Vlastimil: REN-0049", } @InProceedings{Campbell:1990:AMG, author = "A. T. {Campbell, III} and Donald S. Fussell", title = "Adaptive Mesh Generation for Global Diffuse Illumination", year = "1990", month = Aug, editor = "Forest Baskett", volume = "24", booktitle = "Computer Graphics (SIGGRAPH '90 Proceedings)", pages = "155--164", keywords = "BSP tree", who = "Havran Vlastimil: REN-0050", } @Article{Noordmans:1997:FVR, author = "H. J. Noordmans and A. W. M. Smeulders and H. T. M. {van der Voort}", title = "Fast volume render techniques for interactive analysis", journal = "The Visual Computer", year = "1997", volume = "13", number = "8", pages = "345--358", publisher = "Springer-Verlag", note = "ISSN 0178-2789", keywords = "volume rendering, interaction, successive adaptive refinement, confocal microscopy", annote = "Without graphics hardware, interactive volume rendering is almost impossible with the current generation of computers and software. We describe the implementation of a volume renderer for interactive analysis of confocal images. We propose several techniques to accelerate the rendering of grey-value volumes. We propose to illuminate the volume selectively with ray templates to get a proper shadow cue in the shortest feasible time. In the viewing phase, rendering is distinctively accelerated for four user interactions: (1) a total change by successive adaptive refinement, (2) an unknown change in the view with this refinement strategy combined with suspended interpolation, (3) a known change in the view by recalculating only that part and (4) a view translation by recalculating the uncovered part.", who = "Havran Vlastimil: REN-0051", } @Article{lischinski92a, author = "Dani Lischinski and Filippo Tampieri and Donald P. Greenberg", title = "Discontinuity meshing for accurate radiosity", journal = "IEEE Computer Graphics and Applications", pages = "25--39", volume = "12", number = "6", month = nov, year = "1992", keywords = "shadow, illumination, bsp, adaptive subdivision", annote = "This object-space algorithm accurately produces the radiance across a surface. Used in progressive-refinement radiosity system, it greatly improves the photorealism of diffuse global illumination solutions.", who = "Havran Vlastimil: REN-0052", } @Article{tvcg-1995-19, author = "Francois X. Sillion", email = "francois.sillion@imag.fr", title = "{A Unified Hierarchical Algorithm for Global Illumination with Scattering Volumes and Object Clusters}", journal = "IEEE Transactions on Visualization and Computer Graphics", volume = "1", number = "3", month = sep, year = "1995", pages = "240--254", abstract = "This paper presents a new radiosity algorithm that allows the simultaneous computation of energy exchanges between surface elements, scattering volume distributions, and groups of surfaces, or object clusters. The new technique is based on a hierarchical formulation of the zonal method, and efficiently integrates volumes and surfaces. In particular no initial linking stage is needed, even for inhomogeneous volumes, thanks to the construction of a global spatial hierarchy. An analogy between object clusters and scattering volumes results in a powerful clustering radiosity algorithm, with no initial linking between surfaces and fast computation of average visibility information through a cluster. We show that the accurate distribution of the energy emitted or received at the cluster level can produce even better results than isotropic clustering at a marginal cost. The resulting algorithm is fast and, more importantly, truly progressive as it allows the quick calculation of approximate solutions with a smooth convergence towards very accurate simulations.", keywords = "Radiosity, hierarchical techniques, clustering, visibility, volume scattering, lighting simulation, realistic image synthesis", tvcg-abstract-url = "http://www.computer.org/tvcg/tg1995/v0240abs.htm", who = "Havran Vlastimil: REN-0053", } @Article{tvcg-1997-25, author = "Paul Lalonde and Alain Fournier", title = "{A Wavelet Representation of Reflectance Functions}", journal = "IEEE Transactions on Visualization and Computer Graphics", volume = "3", number = "4", month = oct, year = "1997", pages = "329--336", abstract = "Analytical models of light reflection are in common use in computer graphics. However, models based on measured reflectance data promise increased realism by making it possible to simulate many more types of surfaces to a greater level of accuracy than with analytical models. They also require less expert knowledge about the illumination models and their parameters. There are a number of hurdles to using measured reflectance functions, however. The data sets are very large. A reflectance distribution function sampled at five degrees angular resolution, arguably sparse enough to miss highlights and other high frequency effects, can easily require over a million samples, which in turn amount to over four megabytes of data. These data then also require some form of interpolation and filtering to be used effectively. In this paper, we examine issues of representation of measured reflectance distribution functions. In particular, we examine a wavelet basis representation of reflectance functions, and the algorithms required for efficient point-wise reconstruction of the BRDF. We show that the nonstandard wavelet decomposition leads to considerably more efficient algorithms than the standard wavelet decomposition. We also show that thresholding allows considerable improvement in running times, without unduly sacrificing image quality.", keywords = "reflectance models, bidirectional reflectance, distribution functions, local shading, local illumination, wavelets, compression", tvcg-abstract-url = "http://www.computer.org/tvcg/tg1997/v0329abs.htm", tvcg-pdf-url = "http://pdf.computer.org/tg/books/tg1997/pdf/v0329.pdf", who = "Havran Vlastimil: REN-0054", } @InProceedings{Shade:1996:HIC, author = "Jonathan Shade and Dani Lischinski and David Salesin and Tony {DeRose} and John Snyder", title = "Hierarchical Image Caching for Accelerated Walkthroughs of Complex Environments", editor = "Holly Rushmeier", series = "Annual Conference Series", pages = "75--82", booktitle = "SIGGRAPH 96 Conference Proceedings", year = "1996", organization = "ACM SIGGRAPH", publisher = "Addison Wesley", month = Aug, note = "held in New Orleans, Louisiana, 04-09 August 1996", abstract = "We present a new method that utilizes path coherence to accelerate walkthroughs of geometrically complex static scenes. As a preprocessing step, our method constructs a BSP-tree that hierarchically partitions the geometric primitives in the scene. In the course of a walkthrough, images of nodes at various levels of the hierarchy are cached for reuse in subsequent frames. A cached image is reused by texture-mapping it onto a single quadrilateral that is drawn instead of the geometry contained in the corresponding node. Visual artifacts are kept under control by using an error metric that quantifies the discrepancy between the appearance of the geometry contained in a node and the cached image. The new method is shown to achieve speedups of an order of magnitude for walkthroughs of a complex outdoor scene, with little or no loss in rendering quality.", who = "Havran Vlastimil: REN-0055", } @Article{tvcg-1996-22, author = "Daniel Cohen-Or and Eran Rich and Uri Lerner and Victor Shenkar", email = "daniel@math.tau.ac.il and none and none and none", title = "{A Real-Time Photo-Realistic Visual Flythrough}", journal = "IEEE Transactions on Visualization and Computer Graphics", volume = "2", number = "3", month = sep, year = "1996", pages = "255--264", abstract = "In this paper we present a comprehensive flythrough system which generates photo-realistic images in true real-time. The high performance is due to an innovative rendering algorithm based on a discrete ray casting approach, accelerated by ray coherence and multiresolution traversal. The terrain as well as the 3D objects are represented by a textured mapped voxel-based model. The system is based on a pure software algorithm and is thus portable. It was first implemented on a workstation and then ported to a general-purpose parallel architecture to achieve real-time performance.", keywords = "Terrain visualization, parallel rendering, flight simulator, visual simulations, voxel-based modeling, ray casting", tvcg-abstract-url = "http://www.computer.org/tvcg/tg1996/v0255abs.htm", who = "Havran Vlastimil: REN-0056", } @InProceedings{hanrahan90b, author = "Pat Hanrahan and Jim Lawson", title = "A Language for Shading and Lighting Calculations", pages = "289--298", booktitle = "Computer Graphics (SIGGRAPH '90 Proceedings)", volume = "24", number = "4", year = "1990", month = Aug, editor = "Forest Baskett", conference = "held in Dallas, Texas; 6-10 August 1990", keywords = "shading language, little language, illumination, lighting, rendering", who = "Havran Vlastimil: REN-0057", } @InProceedings{Schroder:1993:FFB, author = "Peter Schr{\"{o}}der and Pat Hanrahan", booktitle = "Computer Graphics Proceedings, Annual Conference Series, 1993", title = "On the Form Factor Between Two Polygons", pages = "163--164", year = "1993", keywords = "Radiosity, Engineering, Closed form solution, form factor, polygons", annote = "Form factors are used in radiosity to describe the fraction of diffusely re ected light leaving one surface and arriving at another. They are a fundamental geometric property used for computation. Many special configurations admit closed form solutions. However, the important case of the form factor between two polygons in three space has had no known closed form solution. We give such a solution for the case of general (planar, convex or concave, possibly containing holes) polygons.", who = "Havran Vlastimil: REN-0058", } @Article{Kaufman:1993:VG, author = "Arie Kaufman and Daniel Cohen and Roni Yagel", title = "Volume Graphics", journal = "Computer", volume = "26", number = "7", pages = "51--64", month = Jul, year = "1993", coden = "CPTRB4", ISSN = "0018-9162", bibdate = "Sat Feb 1 16:21:14 MST 1997", abstract = "Just as 2D raster graphics superseded vector graphics, volume graphics has the potential to supersede surface graphics for 3D geometric scene representation, manipulation, and rendering.", acknowledgement = ack-nhfb, affiliation = "Dept. of Comput. Sci., State Univ. of New York, Stony Brook, NY, USA", classification = "723.2; C4260 (Computational geometry); C6130B (Graphics techniques)", journalabr = "Computer", keywords = "3D scene representation; Block operations; Constructive solid geometry modeling; Discreteness; Geometric objects; Hierarchical representation; Imaging techniques; Interactive computer graphics; Internal structures; Irregular voxel sizes; Memory size; Processing time; Sampled data sets; Simulated data sets; Three dimensional computer graphics; Viewpoint independence; Volume buffer; Volume data sets; Volume graphics; Volume visualization", thesaurus = "Computational geometry; Data visualisation; Solid modelling", who = "Havran Vlastimil: REN-0059", } @InProceedings{Novins:1990:EMV, author = "Kevin L. Novins and Francois X. Sillion and Donald P. Greenberg", title = "An Efficient Method for Volume Rendering using Perspective Projection", pages = "95--102", booktitle = "Computer Graphics (San Diego Workshop on Volume Visualization)", volume = "24", number = "5", year = "1990", month = nov, conference = "held in San Diego, California; 10-11 December 1990", keywords = "volume visualization, volume rendering, scientific visualization, ray tracing, perspective projection, depth of field", annote = "Use of the perspective projection adds important perceptual cues for image comprehension. However, it has not been widely used in volume rendering because of the lack of efficient computational algorithms and concern over the nonuniform sampling rate imposed by perspective ray divergence. This paper introduces two new techniques to help make perspective projection more feasible in rendering volume data. First, a method is presented for efficient slice-by-slice processing of volume data, allowing high resolution data sets by eliminating typical memory constraints. Second, an adaptive ``ray splitting'' approach is described which ensures that the entire volume is sampled within user-specified limits. Additionally, we present results using distributed ray tracing to achieve depth of field effects.", who = "Havran Vlastimil: REN-0061", } @InProceedings{shirley94cn, author = "P. Shirley", title = "Hybrid Radiosity/Monte Carlo Methods", pages = "??-??", booktitle = "SIGGRAPH'94 (Advanced Radiosity Course Notes)", volume = "28", year = "1994", month = Jul, who = "Havran Vlastimil: REN-0062", } @InProceedings{Kok:1994:SSD, author = "Arjan J. F. Kok and Frederik Jansen", booktitle = "Photorealistic Rendering in Computer Graphics (Proceedings of the Second Eurographics Workshop on Rendering)", title = "Source Selection for the Direct Lighting Computation in Global Illumination", publisher = "Springer-Verlag", address = "New York", pages = "75--82", year = "1994", keywords = "adaptive subdivision, ray tracing", bibsource = "sig-11-1994", who = "Havran Vlastimil: REN-0063", } @InProceedings{Wiley97, author= "Wiley C and Campbell A and Szygenda S and Fussel D and Hudson F", title = "Multiresolution BSP Trees", booktitle = "Graphics Interface 97", year = "1997", pages = "??-??", note = "University of Texas", who = "Havran Vlastimil: REN-0064", } @InProceedings{shirley94pg, author = "P. Shirley", title = "Practitioners' Assessment of Light Reflection Models", pages = "??-??", booktitle = "Pacific Graphics'97", volume = "??", year = "1997", month = oct, who = "Havran Vlastimil: REN-0065", } @inproceedings{sbert:cgi:98, author = "M. Sbert", title = "Random Walk Radiosity with generalized absorption probabilities", booktitle = "Proceedings of Computer Graphics International '98 (CGI'98)", year = "1998", month = jun, pages = "658--665", address = "Hannover, Germany", publisher = "IEEE, NY", who = "Havran Vlastimil: REN-0066", } @inproceedings{neumann:cgi:98, author = "L. Neumann", title = "Automatic Exposure in Computer Graphics Based on the Minimum Information Loss Principle", booktitle = "Proceedings of Computer Graphics International '98 (CGI'98)", year = "1998", month = jun, pages = "666-677", address = "Hannover, Germany", publisher = "IEEE, NY", who = "Havran Vlastimil: REN-0067", } @inproceedings{SS98, author = "Cyril Soler and Fran\c{c}ois Sillion", title = "Fast Calculation of Soft Shadow Textures Using Convolution", booktitle = "Computer Graphics Proceedings, Annual Conference Series: {\em SIGGRAPH~'98 (Orlando, FL)}", pages = "??-??", year = 1998, organization = "ACM SIGGRAPH, New York", month = Jul, who = "Havran Vlastimil: REN-0068", } @inproceedings{prikryl:eg:1998, author = "J. Prikryl and W. Purgathofer", title = "State of the Art in Perceptually Driven Radiosity", booktitle = "STAR in {\em Eurographics~'98}", pages = "??-??", organization = "Eurographics Association", year = "1998", month = sep, note = "held in Lisbon, Protugal, 02-04 September 1998", who = "Havran Vlastimil: REN-0069", } @InProceedings{Garrett:1996:RTI, title = "Real-Time Incremental Visualization of Dynamic Ultrasound Volumes Using Parallel {BSP} Trees", author = "William F. Garrett and Henry Fuchs and Mary C. Whitton and Andrei State", booktitle = "IEEE Visualization '96", organization = "IEEE", year = "1996", month = oct, note = "ISBN 0-89791-864-9", who = "Havran Vlastimil: REN-0070", } @InProceedings{Mueller:1996:FPV, title = "Fast Perspective Volume Rendering with Splatting by Utilizing a Ray-Driven Approach", author = "Klaus Mueller and Roni Yagel", booktitle = "IEEE Visualization '96", organization = "IEEE", year = "1996", month = oct, note = "ISBN 0-89791-864-9", who = "Havran Vlastimil: REN-0071", } @InProceedings{Levoy:1996:LFR, author = "Marc Levoy and Pat Hanrahan", title = "Light Field Rendering", editor = "Holly Rushmeier", series = "Annual Conference Series", pages = "31--42", booktitle = "SIGGRAPH 96 Conference Proceedings", year = "1996", organization = "ACM SIGGRAPH", publisher = "Addison Wesley", month = Aug, note = "held in New Orleans, Louisiana, 04-09 August 1996", abstract = "A number of techniques have been proposed for flying through scenes by redisplaying previously rendered or digitized views. Techniques have also been proposed for interpolating between views by warping input images, using depth information or correspondences between multiple images. In this paper, we describe a simple and robust method for generating new views from arbitrary camera positions without depth information or feature matching, simply by combining and resampling the available images. The key to this technique lies in interpreting the input images as 2D slices of a 4D function - the light field. This function completely characterizes the flow of light through unobstructed space in a static scene with fixed illumination. We describe a sampled representation for light fields that allows for both efficient creation and display of inward and outward looking views. We have created light fields from large arrays of both rendered and digitized images. The latter are acquired using a video camera mounted on a computer-controlled gantry. Once a light field has been created, new views may be constructed in real time by extracting slices in appropriate directions. Since the success of the method depends on having a high sample rate, we describe a compression system that is able to compress the light fields we have generated by more than a factor of 100:1 with very little loss of fidelity. We also address the issues of antialiasing during creation, and resampling during slice extraction.", who = "Havran Vlastimil: REN-0072", } @InProceedings{Wilhelms:1996:HPD, title = "Hierarchical and Parallelizable Direct Volume Rendering for Irregular and Multiple Grids", author = "Jane P. Wilhelms and Allen {Van Gelder} and Paul Tarantino and Jonathan Gibbs", booktitle = "IEEE Visualization '96", organization = "IEEE", year = "1996", month = oct, note = "ISBN 0-89791-864-9", who = "Havran Vlastimil: REN-0073", } @InProceedings{Paquette:1998:HVD, author = "Eric Paquette and Pierre Poulin and George Drettakis", title = "A Light Hierarchy for Fast Rendering of Scenes with Many Lights", editor = "TBD...", pages = "TBD...", booktitle = "Computer Graphics Forum (EuroGraphics '98 Conference Proceedings", year = "1998", organization = "EuroGraphics", month = sep, note = "held in Lisbon, Protugal, 02-04 September 1998", who = "Havran Vlastimil: REN-0074", } @Article{tvcg-1997-12, author = "Claudio T. Silva and Joseph S. B. Mitchell", email = "csilva@ams.sunysb.edu and jsbm@ams.sunysb.edu", title = "The Lazy Sweep Ray Casting Algorithm for Rendering Irregular Grids", journal = "IEEE Transaction on Visualization and Computer Graphics", volume = "3", number = "2", month = apr, year = "1997", pages = "142--157", abstract = "Lazy Sweep Ray Casting is a fast algorithm for rendering general irregular grids. It is based on the sweep-plane paradigm, and it is able to accelerate ray casting for rendering irregular grids, including disconnected and nonconvex (even with holes) unstructured irregular grids with a rendering cost that decreases as the ``disconnectedness'' decreases. The algorithm is carefully tailored to exploit spatial coherence even if the image resolution differs substantially from the object space resolution. Lazy Sweep Ray Casting has several desirable properties, including its generality, (depth-sorting) accuracy, low memory consumption, speed, simplicity of implementation, and portability (e.g., no hardware dependencies). We establish the practicality of our method through experimental results based on our implementation, which is shown to be substantially faster (by up to two orders of magnitude) than other algorithms implemented in software. We also provide theoretical results, both lower and upper bounds, on the complexity of ray casting of irregular grids.", keywords = "volumetric data, irregular grids, volume rendering, sweep algorithms, ray tracing, computational geometry, scientific visualization", tvcg-abstract-url = "http://www.computer.org/pubs/tvcg/1997/v0142abs.htm", who = "Havran Vlastimil: REN-0075", } @InProceedings{EVL-1997-33, author = "W. Heidrich and Ph. Slusallek and H.-P. Seidel", editor = "V. Klassen M. Mantei", title = "An Image-Based Model for Realistic Lens Systems in Interactive Computer Graphics", booktitle = "Proceedings of Graphics Interface '97", year = "1997", note = "accepted for publication", abstract = "Many applications, such as realistic rendering, virtual and augmented reality, and virtual studios, require an accurate simulation of real lens and camera systems at interactive rates, including depth of field and geometric aberrations, in particular distortions. Unfortunately, camera models used in Computer Graphics are either too simple to describe these effects or too expensive to simulate for interactive use. In this paper, we introduce an image-based lens model that is powerful enough to simulate sophisticated properties of real lens systems, yet fast enough for interactive graphics. By exploiting coherence, common graphics hardware can be used to yield high frame rates.", keywords = "Lens Systems, Image-Based Rendering, Hardware Acceleration, Interactive Computer Graphics", postscript-url = "ftp://faui90.informatik.uni-erlangen.de/pub/Publications/1997/Publ.1997.4.ps.gz", evlib-url = "http://infovis.zib.de:8000/Dienst/UI/2.0/Describe/evl.computergraphics%2FEVL-1997-33", evlib-revision = "1st", who = "Havran Vlastimil: REN-0076", } @InProceedings{schilling91a, author = "Andreas Schilling", title = "A new simple and efficient antialiasing with subpixel masks", pages = "133--141", booktitle = "Computer Graphics (SIGGRAPH '91 Proceedings)", volume = "25", number = "4", year = "1991", month = Jul, editor = "Thomas W. Sederberg", conference = "held in Las Vegas, Nevada; 28 July - 2 August 1991", keywords = "antialiasing, exact area subpixel algorithm", who = "Havran Vlastimil: REN-0077", } @InProceedings{Ward:1994:RLS, author = "Gregory J. Ward", editor = "Andrew Glassner", booktitle = "Proceedings of SIGGRAPH '94 (Orlando, Florida, July 24--29, 1994)", title = "The {RADIANCE} Lighting Simulation and Rendering System", organization = "ACM SIGGRAPH", publisher = "ACM Press", pages = "459--472", month = Jul, year = "1994", note = "ISBN 0-89791-667-0", series = "Computer Graphics Proceedings, Annual Conference Series", who = "Havran Vlastimil: REN-0078", } @InProceedings{Chui96-LVARC, author = "Ken Chui and Kurt Zimmerman and Peter Shirley", year = "1996", title = "The {Light} {Volume}: {An} {Aid} to {Rendering} {Complex} {Environments}", booktitle = "Rendering Techniques '96 (Proceedings of the Seventh Eurographics Workshop on Rendering)", pages = "1--10", publisher = "Springer-Verlag/Wien", address = "New York, NY", comments = "ISBN 3-211-82883-4", who = "Havran Vlastimil: REN-0080", } @Article{Shirley:1992:TCM, author = "Peter Shirley", title = "Time complexity of {Monte Carlo} radiosity", journal = "Computers and Graphics", volume = "16", number = "1", pages = "117--120", year = "1992", coden = "COGRD2", ISSN = "0097-8493", bibdate = "Wed Feb 5 07:22:58 MST 1997", acknowledgement = ack-nhfb, affiliation = "Indiana Univ", affiliationaddress = "Bloomington, IN, USA", classification = "723; 922", journalabr = "Comput Graphics (Pergamon)", keywords = "Computer Metatheory--Computational Complexity; Mathematical Statistics; Monte Carlo Methods; Time Complexity", who = "Havran Vlastimil: REN-0081", } @Article{Nishita85, author = "Tomoyuki Nishita and Eihachiro Nakamae", title = "Continuous Tone Representation of 3-{D} Objects Taking Account of Shadows and Interreflection", journal = "Computer Graphics (SIGGRAPH '85 Proceedings)", volume = "19", number = "3", month = Jul, year = "1985", pages = "23--30", keywords = "shading, penumbra, radiosity", who = "Havran Vlastimil: REN-0082", } @Article{Christensen:1997:CGG, author = "Per H. Christensen and Dani Lischinski and Eric J. Stollnitz and David H. Salesin", title = "Clustering for Glossy Global Illumination", journal = "ACM Transactions on Graphics", year = "1997", volume = "16", number = "1", month = jan, pages = "3--33", note = "ISSN 0730-0301", keywords = "clustering, error bounds, global illumination, glossy reflectors, hierarchy, importance, radiance, rendering", annote = "We present a new clustering algorithm for global illumination in complex environments. The new algorithm extends previous work on clustering for radiosity to allow for nondiffuse (glossy) reflectors. We represent clusters as points with directional distributions of outgoing and incoming radiance and importance, and we derive an error bound for transfers between these clusters. The algorithm groups input surfaces into a hierarchy of clusters, and then permits clusters to interact only if the error bound is below an acceptable tolerance. We show that the algorithm is asymptotically more efficient than previous clustering algorithms even when restricted to ideally diffuse environments. Finally, we demonstrate the performance of our method on two complex glossy environments.", who = "Havran Vlastimil: REN-0083", } @InCollection{Zimmerman95twopass, author = "Kurt Zimmerman and Peter Shirley", title = "A Two-Pass Realistic Image Synthesis Method for Complex Scenes", booktitle = "Rendering Techniques '95 (Proceedings of the Sixth Eurographics Workshop on Rendering)", publisher = "Springer-Verlag", address = "NY", pages = "284--295", year = "1995", note = "Also ftp://ftp.cs.indiana.edu/pub/techreports/TR434.ps.Z", keywords = "shadow", who = "Havran Vlastimil: REN-0084", } @Article{Asensio:1992:HRC, author = "Frederic Asensio", title = "A Hierarchical Ray-Casting Algorithm for Radiosity Shadows", year = "1992", month = may, journal = "Third Eurographics Workshop on Rendering", pages = "179--188", address = "Bristol, UK", keywords = "radiosity", who = "Havran Vlastimil: REN-0085", } @InProceedings{Gu:1997:PGT, author = "Xianfeng Gu and Steven J. Gortier and Michael F. Cohen", title = "Polyhedral Geometry and the Two-Plane Parameterization", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wein", address = "New York City, NY", month = jun, pages = "1--12", note = "ISBN 3-211-83001-4", annote = "Recently the light-field and lumigraph systems have been proposed as general methods of representing the visual information present in a scene. These methods represent this information as a 4D function of light over the domain of directed lines. These systems use the intersection points of the lines on two planes to parameterize the lines in space. This paper explores the structure of the two-plane parameterization in detail. In particular we analyze the association between the geometry of the scene and subsets of the 4D data. The answers to these questions are essential to understanding the relationship between a lumigraph, and the geometry that it attempts to represent. This knowledge is potentially important for a variety of applications such as extracting shape from lumigraph data, and lumigraph compression.", who = "Havran Vlastimil: REN-0086", } @Article{Schaufler:1996:TDI, author = "Germot Schaufler and Wolfgang Sturzlinger", title = "A Three-Dimensional Image Cache for Virtual Reality", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "15", number = "3", pages = "C227--C235, C471--C472", month = sep, year = "1996", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Tue Mar 17 15:44:38 MST 1998", acknowledgement = ack-nhfb, affiliation = "Johannes Kepler Universit{\"a}t Linz", affiliationaddress = "Linz, Austria", affiliationaddress = "Austria", classification = "722.1; 722.4; 723.1; 723.2; 723.5; 921.5; C6120 (File organisation); C6130B (Graphics techniques)", conference = "Proceedings of the 1996 17th Annual Conference and Exhibition of the European Association for Computer Graphics, EUROGRAPHICS'96", conflocation = "Poitiers, France; 26-30 Aug. 1996", conftitle = "European Association for Computer Graphics 17th Annual Conference and Exhibition. EUROGRAPHICS '96", corpsource = "Johannes Kepler Univ., Linz, Austria", journalabr = "Comput Graphics Forum", keywords = "Algorithms; Buffer storage; Computational geometry; Computer hardware; Computer software; Image processing; Object hierarchies; Optimization; Real time systems; Three dimensional computer graphics; Three dimensional image cache; Virtual reality", keywords = "Algorithms; Buffer storage; cache storage; coherence; complex virtual; Computational geometry; computer displays; Computer hardware; Computer software; detail; environment display; frame rate; hardware; hierarchical scene subdivision; Image processing; impostors; large virtual environment display; levels; Object hierarchies; optimisation; Optimization; Real time systems; real-time; real-time rendering; rendering; rendering (computer graphics); rendering load; smooth frame sequence; software accelerated; software optimization; systems; Three dimensional computer graphics; three dimensional image cache; Three dimensional image cache; three dimensional image cache; virtual reality; Virtual reality; virtual reality", meetingaddress = "Poitiers, Fr", meetingdate = "Aug 26--30 1996", meetingdate2 = "08/26--30/96", sponsor = "CNRS; ERCIM; BARCO; EDF; SUN; et al", sponsororg = "CNRS; BARCO; Electr. France; et al", treatment = "P Practical", who = "Havran Vlastimil: REN-0087", } @Article{Sbert:1993:IGB, author = "M. Sbert", title = "An integral geometry based method for fast form-factor computation", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "12", number = "3", pages = "C409--C420", month = "????", year = "1993", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "C1140G (Monte Carlo methods); C4260 (Computational geometry); C6130B (Graphics techniques)", conflocation = "Barcelona, Spain; 6-10 Sept. 1993", conftitle = "European Association for Computer Graphics 14th Annual Conference and Exhibition. EUROGRAPHICS '93", corpsource = "Dept. d'Inf. i Matematica Aplicada, Univ. Politecnica de Catalunya, Barcelona, Spain", keywords = "complexity; Complexity; complexity; computational geometry; computer graphics; form-factor computation; Form-factor computation; integral geometry based method; Integral geometry based method; integration; local; Local integration; luminance; Luminance; methods; Monte Carlo; Monte Carlo techniques; ray tracing; rendering algorithms; Rendering algorithms", thesaurus = "Computational geometry; Computer graphics; Monte Carlo methods; Ray tracing", treatment = "P Practical; T Theoretical or Mathematical", who = "Havran Vlastimil: REN-0088", } @TechReport{Shade:1996: , author = "Jonathan Shade and Dani Lischinski and David Salesin and Tony {DeRose} and John Snyder", title = "Hierarchical Image Caching for Accelerated Walkthroughs of Complex Environments", institution = "University of Washington", pages = "1--22", year = "1996", month = jan, who = "Havran Vlastimil: REN-0089", } @InProceedings{Sbert95-GMCPS, author = "Mateu Sbert and Frederic Perez and Xavier Pueyo", editor = "P. M. Hanrahan and W. Purgathofer", year = "1995", title = "Global {Monte} {Carlo}: {A} {Progressive} {Solution}", booktitle = "Rendering Techniques '95 (Proceedings of the Sixth Eurographics Workshop on Rendering)", pages = "231--239", publisher = "Springer-Verlag", address = "New York, NY", comments = "ISBN 3-211-82733-1", who = "Havran Vlastimil: REN-0090", } @TechReport{Szirmay-Kalos98, author = "Laszlo Szirmay-Kalos and Werner Purgathofer", title = "Global Ray-bundle Tracing with Hardware Acceleration", institution = " Technical University of Budapest", number = "TR-186-2-98-18", month = jun, year = "1998", keywords = "rendering equation, global radiance, Monte-Carlo and quasi Monte Carlo integration, Importance Sampling, Metropolis Method, z-buffer", who = "Havran Vlastimil: REN-0091", } @InProceedings{Braun:1995:ADS, author = "M. Braun and A. Formella", title = "Anigraph - {A} Data Structure for Computer Animation", booktitle = "Computer Animation '95", year = "1995", month = apr, who = "Havran Vlastimil: REN-0092", } @InProceedings{EVL-1997-108, author = "Jarkko Oikarinen", title = "Using 3-Dimensional Seed Filling in View Space to Accelerate Volume Rendering", booktitle = "IEEE Visualization '97", organization = "IEEE", month = oct, year = "1997", language = "en", postscript-url = "http://rieska.oulu.fi/~jto/papers/ieeevis97.ps", postscript-url-md5 = "f2b002cd5c384fffe63cac6826e09ed3", evlib-url = "http://visinfo.zib.de:80/Dienst/UI/2.0/Describe/evl.volumerendering%2FEVL-1997-108", evlib-revision = "1st", who = "Havran Vlastimil: REN-0093", } @InProceedings{Bouatouch:1995:IWT, author = "Kadi Bouatouch and Sumant Pattanaik", title = "Interactive Walk-Through Using Particle Tracing", booktitle = "Computer Graphics International '95", year = "1995", month = jun, who = "Havran Vlastimil: REN-0094", } @Article{Pattanaik:1993:PEI, author = "S. N. Pattanaik and S. P. Mudur", title = "The potential equation and importance in illumination computations", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "12", number = "2", pages = "131--136", month = jun, year = "1993", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "A0230 (Function theory, analysis); A4210 (Propagation and transmission in homogeneous media); C4180 (Integral equations); C6130B (Graphics techniques)", corpsource = "Graphics and CAD Div., Nat. Centre for Software Technol., Bombay, India", keywords = "adjoint; Adjoint linear equations; adjoint linear equations; Adjoint radiosity equation; brightness; computer graphics; discrete; Discrete formulations; equation; formulations; Global illumination; global illumination; illumination computations; Illumination computations; illumination computations; importance-driven radiosity algorithm; Importance-driven radiosity algorithm; importance-driven radiosity algorithm; integral equations; Integral equations; lighting; Linear operators; linear operators; luminance; Luminance equation; patch; Patch; potential equation; Potential equation; potential equation; radiosity equation; Surface potential; surface potential; transposes; Transposes; transposes", thesaurus = "Brightness; Computer graphics; Integral equations; Lighting; Surface potential", treatment = "T Theoretical or Mathematical", who = "Havran Vlastimil: REN-0095", } @InProceedings{Fuchs:1983:NRT, author = "H. Fuchs and G. D. Abram and E. D. Grant", title = "Near real-time shaded display of rigid objects", pages = "65--72", journal = "Computer Graphics (SIGGRAPH '83 Proceedings)", volume = "17", number = "3", year = "1983", month = Jul, conference = "held in Detroit, Michigan; 25--29 July 1983", keywords = "I35 object data base, I37 shading, I37 visible surface algorithm", who = "Havran Vlastimil: REN-0096", } @InProceedings{Atherton:1983:SHS, author = "Peter R. Atherton", title = "A Scanline Hidden Surface Removal Procedure for Constructive Solid Geometry", pages = "73--82", booktitle = "Computer Graphics (SIGGRAPH '83 Proceedings)", volume = "17", number = "3", year = "1983", month = Jul, conference = "held in Detroit, Michigan; 25--29 July 1983", keywords = "CSG, I35 constructive solid geometry, I37 hidden surface removal", who = "Havran Vlastimil: REN-0097", } @Article{tvcg-1996-25, author = "George Drettakis and Eugene L. Fiume", email = "George.Drettakis@imag.fr", title = "{Structured Penumbral Irradiance Computation}", journal = "IEEE Transactions on Visualization and Computer Graphics", volume = "2", number = "4", month = dec, year = "1996", pages = "299--312", abstract = "A definitive understanding of irradiance behavior in penumbral regions has been hard to come by, mainly due to the computational expense of determining the visible parts of an area light source. Consequently, sampling strategies have been mostly ad hoc, and evaluation of the resulting approximations has been difficult. In this paper, the structure of penumbral irradiance is investigated empirically and numerically. This study has been made feasible by the use of the discontinuity mesh and the backprojection, an efficient data structure representing visibility in regions of partial occlusion. Regions of penumbrae in which irradiance varies nonmonotonically are characterized empirically, and numerical tests are performed to determine the frequency of their occurrence. This study inspired the development of two algorithms for the construction of interpolating approximations to irradiance: One algorithm reduces the number of edges in the mesh defining the interpolant domain, and the other algorithm chooses among linear, quadratic, and mixed interpolants based on irradiance monotonicity. Results from numerical tests and images are presented that demonstrate good performance of the new algorithms for various realistic test configurations.", keywords = "Rendering, primary and global illumination, sampling, interpolation, structure, penumbra, experimental study, irradiance, radiosity, discontinuity meshing, backprojection, mesh simplification, interpolant degree reduction", tvcg-abstract-url = "http://www.computer.org/tvcg/tg1996/v0299abs.htm", who = "Havran Vlastimil: REN-0098", } @Article{tvcg-1996-24, author = "Jeffry Nimeroff and Julie Dorsey and Holly Rushmeier", email = "jnimerof@graphics.cis.upenn.edu and dorsey@graphics.lcs.mit.edu and holly@watson.ibm.com", title = "{Implementation and Analysis of an Image-Based Global Illumination Framework for Animated Environments}", journal = "IEEE Transactions on Visualization and Computer Graphics", volume = "2", number = "4", month = dec, year = "1996", pages = "283--298", abstract = "We describe a new framework for efficiently computing and storing global illumination effects for complex, animated environments. The new framework allows the rapid generation of sequences representing any arbitrary path in a ``view space'' within an environment in which both the viewer and objects move. The global illumination is stored as time sequences of range-images at base locations that span the view space. We present algorithms for determining locations for these base images, and the time steps required to adequately capture the effects of object motion. We also present algorithms for computing the global illumination in the base images that exploit spatial and temporal coherence by considering direct and indirect illumination separately. We discuss an initial implementation using the new framework. Results and analysis of our implementation demonstrate the effectiveness of the individual phases of the approach; we conclude with an application of the complete framework to a complex environment that includes object motion.", keywords = "Animation, global illumination, image-based rendering, radiosity, ray tracing, walk-throughs", tvcg-abstract-url = "http://www.computer.org/tvcg/tg1996/v0283abs.htm", who = "Havran Vlastimil: REN-0099", } @Article{Danskin:1992:FAV, author = "John Danskin and Pat Hanrahan", title = "Fast Algorithms for Volume Ray Tracing", year = "1992", journal = "1992 Workshop on Volume Visualization", institution = "ACM", pages = "91--98", annote = "We examine various simple algorithms that exploit homogeneity and accumulated opacity for tracing rays through shaded volumes. Most of these meth- ods have error criteria which allow them to trade quality for speed. The time vs. quality tradeoff for these adaptive methods is compared to fixed step multiresolution methods. These methods are also useful for general light transport in volumes.", who = "Havran Vlastimil: REN-0100", } @InProceedings{Aupperle:1993:HIA, author = "L. Aupperle and Pat Hanrahan", booktitle = "Computer Graphics Proceedings, Annual Conference Series, 1993", title = "A Hierarchical Illumination Algorithm for Surfaces with Glossy Reflection", pages = "155--162", year = "1993", keywords = "adaptive meshing, global illumination, radiosity, ray tracing", annote = "We develop a radiance formulation for discrete three point transport, and a new measure and description of reflectance:area reflectance. This formulation and associated reflectance allow an estimate of error in the computation of radiance across triples of surface elements, and lead directly to a hierarchical refinement algorithm for global illumination. We have implemented and analyzed this algorithm over surfaces exhibiting glossy specular and diffuse reflection. Theoretical growth in light transport computation is shown to be O ( n + k 3 ) for sufficient refinement, where n is the number of elements at the finest level of subdivision over an environment consisting of k input polygonal patches Ñ this growth is exhibited in experimental trials. Naive application of three point transport would require computation over O ( n 3 ) element-triple interactions.", keywords = "adaptive meshing, global illumination, radiosity, ray tracing", who = "Havran Vlastimil: REN-0101", } @Article{Cohen-Or:1998:TDD, author = "Daniel Cohen-Or and Amira Solomovic and David Levin", title = "Three-dimensional distance field metamorphosis", journal = "ACM Transactions on Graphics", volume = "17", number = "2", pages = "116--141", month = apr, year = "1998", coden = "ATGRDF", ISSN = "0730-0301", bibdate = "Sat May 16 07:25:59 MDT 1998", url = "http://www.acm.org:80/pubs/citations/journals/tog/1998-17-2/p116-cohen-or/", abstract = "Given two or more objects of general topology, intermediate objects are constructed by a distance field metamorphosis. In the presented method the interpolation of the distance field is guided by a warp function controlled by a set of corresponding anchor points. Some rules for defining a smooth least-distorting warp function are given. To reduce the distortion of the intermediate shapes, the warp function is decomposed into a rigid rotational part and an elastic part. The distance field interpolation method is modified so that the interpolation is done in correlation with the warp function. The method provides the animator with a technique that can be used to create a set of models forming a smooth transition between pairs of a given sequence of keyframe models. The advantage of the new approach is that it is capable of morphing between objects having a different topological genus where no correspondence between the geometric primitives of the models needs to be established. The desired correspondence is defined by an animator in terms of a relatively small number of anchor points", acknowledgement = ack-nhfb, keywords = "algorithms", subject = "{\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Animation. {\bf I.3.5} Computing Methodologies, COMPUTER GRAPHICS, Computational Geometry and Object Modeling, Curve, surface, solid, and object representations. {\bf I.3.6} Computing Methodologies, COMPUTER GRAPHICS, Methodology and Techniques, Interaction techniques.", who = "Havran Vlastimil: REN-0102", } @INPROCEEDINGS{IMMD9:39:1997, author = {Ph. Slusallek}, title = {Photo-Realistic Rendering -- Recent Trends and Developments}, booktitle = {EUROGRAPHICS '97 State-of-the-Art-Report}, year = {1997}, organization = {Eurographics Association}, who = "Havran Vlastimil: REN-0103", } @TECHREPORT{IMMD9:TR5:1998, author = {C. Teitzel AND M. Hopf AND R. Grosso AND T. Ertl}, title = {Volume Ray Casting on Sparse Grids}, number = {5}, year = {1998}, institution = {Universität Erlangen-Nürnberg}, who = "Havran Vlastimil: REN-0104", } @InProceedings{westin92a, author = "Stephen H. Westin and James R. Arvo and Kenneth E. Torrance", title = "Predicting reflectance functions from complex surfaces", pages = "255--264", booktitle = "Computer Graphics (SIGGRAPH '92 Proceedings)", volume = "26", number = "2", year = "1992", month = Jul, editor = "Edwin E. Catmull", conference = "held in Chicago, Illinois; 26-31 July 1992", keywords = "spherical harmonics, monte carlo, anisotropic reflection, brdf", who = "Havran Vlastimil: REN-0105", } @Article{Heckbert:1986:STM, author = "Paul S. Heckbert", title = "Survey of Texture Mapping", journal = "IEEE Computer Graphics and Applications", volume = "6", number = "11", pages = "56--67", month = nov, year = "1986", coden = "ICGADZ", ISSN = "0272-1716", bibdate = "Sat Jan 25 06:42:48 MST 1997", acknowledgement = ack-nhfb, affiliationaddress = "Pixar, San Rafael, CA, USA", classification = "723; 731; 741", conference = "Graphics Interface 86", journalabr = "IEEE Comput Graphics Appl", keywords = "bibliographies; computer aided design; computer graphics; image texture analysis; imaging techniques; signal filtering and prediction; texture filtering; texture mapping", meetingaddress = "Vancouver, BC, Can", meetingdate = "1986", meetingdate2 = "86", who = "Havran Vlastimil: REN-0106", } @InProceedings{Greene:1993:HZB, author = "Ned Greene and M. Kass", booktitle = "Computer Graphics Proceedings (SIGGRAPH'93), Annual Conference Series, 1993", title = "Hierarchical {Z}-Buffer Visibility", pages = "231--240", year = "1993", annote = "An ideal visibility algorithm should a) quickly reject most of the hidden geometry in a model and b) exploit the spatial and perhaps temporal coherence of the images being generated. Ray casting with spatial subdivision does well on criterion (a), but poorly on criterion (b). Traditional Z-buffer scan conversion does well on criterion (b), but poorly on criterion (a). Here we present a hierarchical Z-buffer scan-conversion algorithm that does well on both criteria. The method uses two hierarchical data structures, an object-space octree and an image-space Z pyramid, to accelerate scan conversion. The two hierarchical data structures make it possible to reject hidden geometry very rapidly while rendering visible geometry with the speed of scan conversion. For animation, the algorithm is also able to exploit temporal coherence. The method is well suited to models with high depth complexity, achieving orders of magnitude acceleration in some cases compared to ordinary Z-buffer scan conversion.", keywords = "Hidden line/surface removal, Graphics Processors, Octree, Pyramid, Temporal Coherence, Spatial Coherence, Z Buffer", who = "Havran Vlastimil: REN-0107", } @InCollection{Heckbert93-FEMR, author = "Paul S. Heckbert", year = "1993", title = "Finite {Element} {Methods} for {Radiosity}", booktitle = "ACM SIGGRAPH '93 Course Notes - Global Illumination", chapter = "5", pages = "1--7", who = "Havran Vlastimil: REN-0108", } @InProceedings{Heckbert92discon, author = "Paul S. Heckbert", title = "Discontinuity Meshing for Radiosity", booktitle = "Third Eurographics Workshop on Rendering", month = may, year = "1992", address = "Bristol, UK", pages = "203--216", keywords = "radiosity, adaptive mesh, visibility", who = "Havran Vlastimil: REN-0109", } @Article{Levoy:1990:ERT, author = "Marc Levoy", title = "Efficient Ray Tracing of Volume Data", journal = "ACM Transactions on Graphics", volume = "9", number = "3", pages = "245--261", month = Jul, year = "1990", coden = "ATGRDF", ISSN = "0730-0301", bibdate = "Fri Jan 5 07:58:42 MST 1996", url = "http://www.acm.org/pubs/toc/Abstracts/0730-0301/78965.html", acknowledgement = ack-nhfb, annote = "{\em Volume Rendering} is a technique for visualizing sampled scalar or vector fields of three spatial dimensions without fitting geometric primitives to the data. A subset of these techniques generates images by computing 2-D projections of a colored semitransparent volume, where the color and opacity at each point are derived from the data using local operators. Since all voxels participate in the generation of each image, rendering time grows linearly with the size of the dataset. This paper presents a front-to-back image-order volume-rendering algorithm and discusses two techniques for improving its performance. The first technique employs a pyramid of binary volumes to encode spatial coherence present in the data, and the second technique uses an opacity threshold to adaptively terminate ray tracing. Although the actual time saved depends on the data, speedups of an order of magnitude have been observed for datasets of useful size and complexity. Examples from two applications are given: medical imaging and molecular graphics.", keywords = "algorithms; design; hierarchical spatial enumeration; medical imaging; molecular graphics; octree; performance; ray tracing; scientific visualization; volume rendering; volume visualization; voxel", subject = "{\bf I.3.3}: Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation, Display algorithms. {\bf I.3.5}: Computing Methodologies, COMPUTER GRAPHICS, Computational Geometry and Object Modeling, Curve, surface, solid, and object representations. {\bf I.3.7}: Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Visible line/surface algorithms.", who = "Havran Vlastimil: REN-0110", } @InProceedings{Lischinski:1993:CHR, author = "Daniel Lischinski and Filippo Tampieri and Donald P. Greenberg", booktitle = "Computer Graphics Proceedings (SIGGRAPH'93), Annual Conference Series, 1993", title = "Combining Hierarchical Radiosity and Discontinuity Meshing", pages = "199--208", year = "1993", keywords = "diffuse reflector, discontinuity meshing, global illumination, hierarchical radiosity, Mach bands, photorealism, quadratic interpolation, radiance function, radiosity, reconstruction, shadows, view-independence", annote = "We introduce a new approach for the computation of view-independent solutions to the diffuse global illumination problem in polyhedral environments. The approach combines ideas from hierarchical radiosity and discontinuity meshing to yield solutions that are accurate both numerically and visually. First, we describe a modified hierarchical radiosity algorithm that uses a discontinuity-driven subdivision strategy to achieve better numerical accuracy and faster convergence. Second, we present a new algorithm based on discontinuity meshing that uses the hierarchical solution to reconstruct an object-space approximation to the radiance function that is visually accurate. Our results show significant improvements over both hierarchical radiosity and discontinuity meshing algorithms.", who = "Havran Vlastimil: REN-0111", } @Article{tvcg-1995-6, author = "Philipp Slusallek and Hans-Peter Seidel", email = "slusallek@informatik.uni-erlangen.de and seidel@informatik.uni-erlangen.de", title = "{Vision - An Architecture for Global Illumination Calculations}", journal = "IEEE Transactions on Visualization and Computer Graphics", volume = "1", number = "1", month = mar, year = "1995", pages = "77--96", abstract = "So far, the problem of global illumination calculation has almost exclusively been approached from an algorithmic point of view. In this paper we propose an architectural approach to global illumination. The proposed rendering architecture Vision is derived from a model of the physical rendering process, which is subsequently mapped onto an object-oriented hierarchy of classes. This design is powerful and flexible enough to support and exploit a large body of existing illumination algorithms for the simulation of various aspects of the underlying physical model. Additionally, the Vision architecture offers a platform for developing new algorithms and for combining them to create new rendering solutions. We discuss both abstract design as well as implementation issues. In particular, we give a detailed description of the global Lighting subsystem and show how algorithms for path tracing, bidirectional estimators, irradiance caching, hierarchical radiosity, wavelet radiosity, and wavelet radiance have been implemented within Vision.", keywords = "Computer graphics, global illumination, image synthesis, rendering architecture, object-oriented analysis and design", tvcg-abstract-url = "http://www.computer.org/tvcg/tg1995/v0077abs.htm", who = "Havran Vlastimil: REN-0112", } @InProceedings{Zatz:1993:GRHb, author = "Harold R. Zatz", booktitle = "Computer Graphics Proceedings(SIGGRAPH'93), Annual Conference Series, 1993", title = "Galerkin Radiosity: {A} Higher Order Solution Method for Global Illumination", pages = "213--220", year = "1993", keywords = "global illumination, radiosity, integral equations, Galerkin methods, curved surfaces, progressive refinement", annote = "This paper presents an alternative radiosity formulation using piecewise smooth radiance functions that incorporates curved surfaces directly. Using the Galerkin integral equation technique as a mathematical foundation, surface radiance functions are approximated by polynomials. This model eliminates the need for a posteriori rendering interpolation, and allows the direct use of non-planar parametric surfaces. Convergence problems due to singularities in the radiosity kernel are analyzed and rectified, and sources of approximation error are examined. The incorporation of a shadow masking technique vastly reduces the need for meshing and associated storage space-accurate radiosity calculations can often be made with no meshing. The technique is demonstrated on traditional radiosity scenes, as well as environments with untessellated curved surfaces.", who = "Havran Vlastimil: REN-0113", } @InProceedings{Tost:1991:AHS, author = "D. Tost", title = "An Algorithm of Hidden Surface Removal Based on Frame-to-Frame Coherence", pages = "261--273", booktitle = "Eurographics '91", year = "1991", month = sep, editor = "Werner Purgathofer", publisher = "North-Holland", conference = "European Computer Graphics Conference and Exhibition; held in Vienna, Austria; 2-6 September 1991", who = "Havran Vlastimil: REN-0114", } @InProceedings{tanaka91b, author = "Toshimitsu Tanaka and Tokiichiro Takahashi", title = "Shading with Area Light Sources", pages = "235--246", booktitle = "Eurographics '91", year = "1991", month = sep, editor = "Werner Purgathofer", publisher = "North-Holland", conference = "European Computer Graphics Conference and Exhibition; held in Vienna, Austria; 2-6 September 1991", who = "Havran Vlastimil: REN-0115", } @InProceedings{Shirley:1991:DQM, author = "P. Shirley", title = "Discrepancy as a Quality Measure for Sample Distributions", pages = "183--194", booktitle = "Eurographics '91", year = "1991", month = sep, editor = "Werner Purgathofer", publisher = "North-Holland", conference = "European Computer Graphics Conference and Exhibition; held in Vienna, Austria; 2-6 September 1991", keywords = "sampling techniques", who = "Havran Vlastimil: REN-0116", } @InCollection{Sakas91, author = "Georgios Sakas and Matthias Gerth", title = "Sampling and Anti-Aliasing of Discrete 3-{D} Volume Density Textures", booktitle = "Eurographics '91", pages = "87--102, 527", publisher = "Elsevier Science Publishers", address = "Amsterdam, North-Holland", month = sep, year = "1991", keywords = "atmospherics, volume densities, voxel fields, sampling", who = "Havran Vlastimil: REN-0117", } @InProceedings{Chen:1991:RFS, author = "Hong Chen and En-Hua Wu", title = "Radiosity for Furry Surfaces", pages = "447--457", booktitle = "Eurographics '91", year = "1991", month = sep, editor = "Werner Purgathofer", publisher = "North-Holland", conference = "European Computer Graphics Conference and Exhibition; held in Vienna, Austria; 2-6 September 1991", who = "Havran Vlastimil: REN-0118", } @InProceedings{Bitter:1997:RSS, author = "Ingmar Bitter and Arie Kaufman", title = "A Ray-Slice-Sweep Volume Rendering Engine", booktitle = "1997 SIGGRAPH / Eurographics Workshop on Graphics Hardware", editor = "Steven Molnar and Bengt-Olaf Schneider", year = "1997", organization = "ACM SIGGRAPH / Eurographics", publisher = "ACM Press", address = "New York City, NY", month = Aug, pages = "121--130", note = "ISBN 0-89791-961-0", keywords = "volume visualization, volume rendering, architecture, hardware design, gradient estimation, compositing, perspective projection", annote = "Ray-slice-sweeping is a plane sweep algorithm for volume rendering. The compositing buffer sweeps through the volume and combines the accumulated image with the new slice of just-projected voxels. The image combination is guided by sight rays from the view point through every voxel of the new slice. Cube-4L is a volume rendering architecture which employs a ray-slice-sweeping algorithm. It improves the Cube-4 architecture in three ways. First, during perspective projection all voxels of the dataset contribute to the rendering. Second, it computes gradients at the voxel positions which improves accuracy and allows a more compact implementation. Third, Cube-4L has less control overhead than Cube-4.", who = "Havran Vlastimil: REN-0119", } @InProceedings{Guenter:1995:SS, author = "Brian Guenter and Todd B. Knoblock and Erik Ruf", title = "Specializing Shaders", editor = "Robert Cook", series = "Annual Conference Series", pages = "343--350", booktitle = "SIGGRAPH 95 Conference Proceedings", year = "1995", organization = "ACM SIGGRAPH", publisher = "Addison Wesley", month = Aug, note = "held in Los Angeles, California, 06-11 August 1995", who = "Havran Vlastimil: REN-0120", } @InProceedings{Briere:1996:HVD, author = "Normand Bri{\'e}re and Pierre Poulin", title = "Hierarchical View-Dependent Structures for Interactive Scene Manipulation", editor = "Holly Rushmeier", series = "Annual Conference Series", pages = "83--90", booktitle = "SIGGRAPH 96 Conference Proceedings", year = "1996", organization = "ACM SIGGRAPH", publisher = "Addison Wesley", month = Aug, note = "held in New Orleans, Louisiana, 04-09 August 1996", annote = "The result of a scene manipulation is usually displayed by re-rendering the entire image even if the change has affected only a small portion of it. This paper presents a system that efficiently detects and recomputes the exact portion of the image that has changed after an arbitrary manipulation of a scene viewed from a fixed camera. The incremental rendering allows for all visual effects produced by ray tracing, including shadows, reflections, refractions, textures, and bump maps. Two structures are maintained to achieve this. A ray tree is associated with each pixel and is used to detect and rebuild only the modified rays after an optical or geometrical change. A color tree represents the complete color expression of a pixel. All changes affecting the color of a pixel without changing the corresponding ray tree require only re-evaluation of the affected portions of the color tree. Optimizations are presented to efficiently detect the modified structures by the use of strategies such as grouping similar information and building hierarchies. Pruning and weighted re-evaluation of information are also considered to manage the memory requirements. The incremental rendering is done efficiently and accurately and is suitable in an interactive context.", who = "Havran Vlastimil: REN-0121", } @Article{Weinhaus:1997:TMM, author = "Frederick M. Weinhaus and Venkat Devarajan", title = "Texture mapping {3D} models of real-world scenes", journal = "ACM Computing Surveys", volume = "29", number = "4", pages = "325--365", month = dec, year = "1997", coden = "CMSVAN", ISSN = "0360-0300", bibdate = "Tue Feb 10 14:53:57 MST 1998", url = "http://www.acm.org:80/pubs/citations/journals/surveys/1997-29-4/p325-weinhaus/", abstract = "Texture mapping has become a popular tool in the computer graphics industry in the last few years because it is an easy way to achieve a high degree of realism in computer-generated imagery with very little effort. Over the last decade, texture-mapping techniques have advanced to the point where it is possible to generate real-time perspective simulations of real-world areas by texture mapping every object surface with texture from photographic images of these real-world areas. The techniques for generating such perspective transformations are variations on traditional texture mapping that in some circles have become known as the {\em Image Perspective Transformation\/} or IPT technology. This article first presents a background survey of traditional texture mapping. It then continues with a description of the texture-mapping variations that achieve these perspective transformations of photographic images of real-world scenes. The style of the presentation is that of a resource survey rather thatn an in-depth analysis.", acknowledgement = ack-nhfb, keywords = "algorithms", subject = "{\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Color, shading, shadowing, and texture. {\bf I.3.3} Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation, Antialiasing**. {\bf I.3.5} Computing Methodologies, COMPUTER GRAPHICS, Computational Geometry and Object Modeling, Curve, surface, solid, and object representations. {\bf I.3.5} Computing Methodologies, COMPUTER GRAPHICS, Computational Geometry and Object Modeling, Hierarchy and geometric transformations. {\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Hidden line/surface removal. {\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Raytracing.", who = "Havran Vlastimil: REN-0122", } @TechReport{Kleij93, author = "Reinier van Kleij and Willem F. Bronsvoort", title = "Performance of scanline-oriented {CSG} direct display algorithms", institution = "Delft University of Technology, Department of Technical Mathematics and Informatics", type = "Technical Report", number = "DUT-TWI-93-03", address = "Delft, The Netherlands", year = "1993", note = "(telephone +31 15 78 4568) (hardcopy only)", who = "Havran Vlastimil: REN-0123", } @Article{Yu:1997:RES, author = "Yizhou Yu and Hong Wu", title = "A Rendering Equation for Specular Transfers and Its Integration into Global Illumination", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "16", number = "3", pages = "C283--C292", month = sep # " 4--8", year = "1997", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Tue Mar 17 15:44:38 MST 1998", acknowledgement = ack-nhfb, affiliation = "Univ of California at Berkeley", affiliationaddress = "Berkeley, CA, USA", classification = "723.5; 741.1; 921.4", journalabr = "Comput Graphics Forum", keywords = "Algorithms; Computational geometry; Computer simulation; Image quality; Light sources; Lighting; Radiosity method; Rendering equation; Specular transfer; Wavefronts", who = "Havran Vlastimil: REN-0124", } @Article{Bao:1995:SCL, author = "Hujun Bao and Jianguo Ying and Qunsheng Peng", title = "Shading with Curve Light Sources", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "14", number = "3", pages = "C/217--C/227", month = sep, year = "1995", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Fri Jul 18 14:09:46 1997", acknowledgement = ack-nhfb, classification = "C1160 (Combinatorial mathematics); C4260 (Computational geometry); C6130B (Graphics techniques)", conflocation = "Maastricht, Netherlands; 18 Aug.-1 Sept. 1995", conftitle = "EUROGRAPHICS '95", corpsource = "State Key Lab. of CAD and CG, Zhejiang Univ., China", keywords = "(computer graphics); component; computational geometry; Curve light sources; curve light sources; diffuse; Diffuse reflection; diffuse reflection; Diffuse reflection compellent; Directional quadrilateral light source; directional quadrilateral light source; Illuminated surface; illuminated surface; image; Image rendering; light sources; linear light; Linear light source; linear segment; Linear segment; linear segment; photorealistic; Photorealistic; photorealistic; reflection; reflection compellent; rendering; shading model; Shading model; shading model; Shadow detection algorithm; shadow detection algorithm; source; specular model; Specular model; specular model; Specular reflection; specular reflection; Specular reflection component", thesaurus = "Computational geometry; Light sources; Reflection; Rendering [computer graphics]", treatment = "P Practical", who = "Havran Vlastimil: REN-0125", } @Article{Tanaka:1997:FAS, author = "Toshimitsu Tanaka and Tokiichiro Takahashi", title = "Fast Analytic Shading and Shadowing for Area Light Sources", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "16", number = "3", pages = "C231--C240", month = sep # " 4--8", year = "1997", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Tue Mar 17 15:44:38 MST 1998", acknowledgement = ack-nhfb, affiliation = "Nagoya Univ Computation Cent", affiliationaddress = "Nagoya, Jpn", classification = "722.1; 723.2; 723.5; 741.1", journalabr = "Comput Graphics Forum", keywords = "Algorithms; Buffer storage; Computational geometry; Cross scanline clipping algorithm; Highlight generation; Image quality; Image segmentation; Light reflection; Light sources; Lighting; Silhouette generation; Soft shadows; Three dimensional computer graphics", who = "Havran Vlastimil: REN-0126", } @Article{Tanaka:1995:FSA, author = "T. Tanaka and T. Takahashi", title = "Fast Shadowing Algorithm for Linear Light Sources", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "14", number = "3", pages = "C/205--C/216", month = sep, year = "1995", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Fri Jul 18 14:10:33 1997", acknowledgement = ack-nhfb, classification = "C6130B (Graphics techniques)", conflocation = "Maastricht, Netherlands; 18 Aug.-1 Sept. 1995", conftitle = "EUROGRAPHICS '95", corpsource = "Computer Center, Nagoya Univ., Japan", keywords = "bounding volume; Bounding volume; bounding volume; buffer; Buffer cells; candidate objects; Candidate objects; candidate objects; cells; computational geometry; conversion algorithm; cylindrical scan; Cylindrical scan conversion algorithm; Expensive light clipping; expensive light clipping; fast shadowing algorithm; Fast shadowing algorithm; light clipping cost; Light clipping cost; light clipping cost; light rays; Light rays; light rays; light sources; Linear light sources; linear light sources; ray oriented; Ray oriented buffer; Realistic images; realistic images; rendering (computer graphics); Shadow generation; shadow generation; Soft shadows; soft shadows; space segmentation; Space segmentation; space segmentation; trapezia; Trapezia; trapezia", thesaurus = "Computational geometry; Light sources; Realistic images; Rendering [computer graphics]", treatment = "P Practical", who = "Havran Vlastimil: REN-0127", } @InProceedings{Lindstrom:1996:RTC, author = "Peter Lindstrom and David Koller and William Ribarsky and Larry F. Hughes and Nick Faust and Gregory Turner", title = "{Real-Time}, Continuous Level of Detail Rendering of Height Fields", editor = "Holly Rushmeier", series = "Annual Conference Series", pages = "109--118", booktitle = "SIGGRAPH 96 Conference Proceedings", year = "1996", organization = "ACM SIGGRAPH", publisher = "Addison Wesley", month = Aug, note = "held in New Orleans, Louisiana, 04-09 August 1996", annote = "We present an algorithm for real-time level of detail reduction and display of high-complexity polygonal surface data. The algorithm uses a compact and efficient regular grid representation, and employs a variable screen-space threshold to bound the maximum error of the projected image. A coarse level of simplification is performed to select discrete levels of detail for blocks of the surface mesh, followed by further simplification through repolygonalization in which individual mesh vertices are considered for removal. These steps compute and generate the appropriate level of detail dynamically in real-time, minimizing the number of rendered polygons and allowing for smooth changes in resolution across areas of the surface. The algorithm has been implemented for approximating and rendering digital terrain models and other height fields, and consistently performs at interactive frame rates with high image quality.", who = "Havran Vlastimil: REN-0128", } @Article{Sturzlinger:1998:CGI, author = "Wolfgang Sturzlinger", title = "Calculating global illumination for glossy surfaces", journal = "Computers and Graphics", volume = "22", number = "2--3", pages = "175--180", month = "????", year = "1998", coden = "COGRD2", ISSN = "0097-8493", bibdate = "Sun Oct 25 12:39:01 MST 1998", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0129", } @Article{Sbert:1998:RWR, author = "Mateu Sbert", title = "Random walk radiosity with infinite path length", journal = "Computers and Graphics", volume = "22", number = "2", pages = "161--166", month = "????", year = "1998", coden = "COGRD2", ISSN = "0097-8493", bibdate = "Sun Oct 25 12:39:01 MST 1998", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0130", } @Article{Shirley:1996:MCT, author = "Peter Shirley and Changyaw Wang and Kurt Zimmerman", title = "{Monte Carlo} Techniques for Direct Lighting Calculations", journal = "ACM Transactions on Graphics", volume = "15", number = "1", pages = "1--36", month = jan, year = "1996", coden = "ATGRDF", ISSN = "0730-0301", bibdate = "Wed Apr 24 07:49:27 1996", url = "http://www.acm.org/pubs/toc/Abstracts/0730-0301/225887.html, http://www.acm.org/pubs/toc/Abstracts/0730-0301/226151.html", abstract = "In a distributed ray tracer, the sampling strategy is the crucial part of the direct lighting calculation. Monte Carlo integration with importance sampling is used to carry out this calculation. Importance sampling involves the design of integrand-specific probability density functions that are used to generate sample points for the numerical quadrature. Probability density functions are presented that aid in the direct lighting calculation from luminaires of various simple shapes. A method for defining a probability density function over a set of luminaires is presented that allows the direct lighting calculation to be carried out with a number of sample points that is independent of the number of luminaires.", acknowledgement = ack-nhfb, keywords = "algorithms; design; theory", subject = "{\bf G.3}: Mathematics of Computing, PROBABILITY AND STATISTICS. {\bf G.1.4}: Mathematics of Computing, NUMERICAL ANALYSIS, Quadrature and Numerical Differentiation. {\bf I.3.0}: Computing Methodologies, COMPUTER GRAPHICS, General. {\bf I.4.1}: Computing Methodologies, IMAGE PROCESSING, Digitization, Sampling.", who = "Havran Vlastimil: REN-0131", } @Article{Neumann:1995:RHM, author = "L{\'{a}}szl{\'{o}} Neumann and Attila Neumann", title = "Radiosity and Hybrid Methods", journal = "ACM Transactions on Graphics", volume = "14", number = "3", pages = "233--265", month = Jul, year = "1995", coden = "ATGRDF", ISSN = "0730-0301", bibdate = "Sat Jan 13 12:33:38 1996", url = "http://www.acm.org/pubs/toc/Abstracts/0730-0301/212347.html", abstract = "We examine various solutions to the global illumination problem, based on an exact mathematical analysis of the rendering equation. In addition to introducing efficient radiosity algorithms, we present a uniform approach to reformulate all of the basic radiosity equations used so far. Using hybrid methods we are able to analyze possible combinations of the view-dependent ray-tracing method and of the low-resolution radiosity-based method, and to offer new algorithms.", acknowledgement = ack-nhfb, keywords = "algorithms", subject = "{\bf I.3.7}: Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Radiosity. {\bf I.3.3}: Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation, Display algorithms. {\bf I.3.7}: Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Color, shading, shadowing, and texture. {\bf I.3.7}: Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Raytracing.", who = "Havran Vlastimil: REN-0132", } @Article{Malzbender:1993:FVR, author = "Tom Malzbender", title = "Fourier Volume Rendering", journal = "ACM Transactions on Graphics", volume = "12", number = "3", pages = "233--250", month = Jul, year = "1993", coden = "ATGRDF", ISSN = "0730-0301", bibdate = "Fri Jan 5 07:58:42 MST 1996", url = "http://www.acm.org/pubs/toc/Abstracts/0730-0301/169705.html", acknowledgement = ack-nhfb, keywords = "algorithms; performance; theory", subject = "{\bf I.3.7}: Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Color, shading, shadowing, and texture. {\bf F.2.1}: Theory of Computation, ANALYSIS OF ALGORITHMS AND PROBLEM COMPLEXITY, Numerical Algorithms and Problems, Computation of transforms. {\bf I.3.3}: Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation, Display algorithms. {\bf I.3.6}: Computing Methodologies, COMPUTER GRAPHICS, Methodology and Techniques, Graphics data structures and data types. {\bf I.4.1}: Computing Methodologies, IMAGE PROCESSING, Digitization, Sampling. {\bf I.4.10}: Computing Methodologies, IMAGE PROCESSING, Image Representation, Volumetric.", who = "Havran Vlastimil: REN-0133", } @Article{Christensen:1996:GIG, author = "Per H. Christensen and Eric J. Stollnitz and David H. Salesin", title = "Global Illumination of Glossy Environments Using Wavelets and Importance", journal = "ACM Transactions on Graphics", volume = "15", number = "1", pages = "37--71", month = jan, year = "1996", coden = "ATGRDF", ISSN = "0730-0301", bibdate = "Wed Apr 24 07:49:27 1996", url = "http://www.acm.org/pubs/toc/Abstracts/0730-0301/225888.html, http://www.acm.org/pubs/toc/Abstracts/0730-0301/226153.html", abstract = "We show how importance-driven refinement and a wavelet basis can be combined to provide an efficient solution to the global illumination problem with glossy and diffuse reflections. Importance is used to focus the computation on the interactions having the greatest impact on the visible solution. Wavelets are used to provide an efficient representation of radiance, importance, and the transport operator. We discuss a number of choices that must be made when constructing a finite element algorithm for glossy global illumination. Our algorithm is based on the standard wavelet decomposition of the transport operator and makes use of a four-dimensional wavelet representation for spatially and angularly varying radiance distributions. We use a final gathering step to improve the visual quality of the solution. Features of our implementation include support for curved surfaces as well as texture-mapped anisotropic emission and reflection functions.", acknowledgement = ack-nhfb, keywords = "algorithms; theory", subject = "{\bf G.1.9}: Mathematics of Computing, NUMERICAL ANALYSIS, Integral Equations, Fredholm equations. {\bf I.6.8}: Computing Methodologies, SIMULATION AND MODELING, Types of Simulation, Combined. {\bf G.1.0}: Mathematics of Computing, NUMERICAL ANALYSIS, General.", who = "Havran Vlastimil: REN-0134", } @TechReport{Kalos:1998:TR23, author = "Laslo Szirmay-Kalos", title = "Stochstic Methods in Global Illumination State of the Art Report", year = "1998", month = Aug, pages = "1--29", keywords = "rendering equation, potential equation, Monte Carlo and quasi-Monte Carlo quadratures, finite element techniques, radiosity, importance sampling, Russian roulette, shooting and gathering random walks, stochastic iteration, Metropolis sampling, distributed ray tracing, path tracing, photon tracing, light tracing, bi-directional path tracing, photon-map, instant radiosity, global ray-bundle tracing, stochastic ray radiosity, transillumination method, first-shot, error and complexity", number = "TR-186-2-98-23", institution = "Institute of Computer Graphics 186-2, Technical University of Vienna", address = "Vienna, Austria", ftp = "ftp: //ftp. cg.tuwien.ac.at/pub/TR/94/TR-186-2-98-23Paper.ps.gz", note = "human contact: technical-report@cg.tuwien.ac.at", who = "Havran Vlastimil: REN-0135", } @Article{Wu:1991:EAT, author = "Xiaolin Wu", editor = "Thomas W. Sederberg", title = "An efficient antialiasing technique", journal = "Computer Graphics", volume = "25", number = "4", pages = "143--152", month = Jul, year = "1991", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", conference = "held in Las Vegas, Nevada; 28 July -- 2 August 1991", keywords = "antialiasing, curve digitization, digital geometry, convolution", who = "Havran Vlastimil: REN-0136", } @InProceedings{Bouville:1991:LSD, author = "C. Bouville and P. Tellier and K. Bouatouch", title = "Low Sampling Densities Using a Psychovisual Approach", pages = "167--182", booktitle = "Eurographics '91", year = "1991", month = sep, editor = "Werner Purgathofer", publisher = "North-Holland", conference = "European Computer Graphics Conference and Exhibition; held in Vienna, Austria; 2-6 September 1991", keywords = "sampling techniques", who = "Havran Vlastimil: REN-0137", } @Article{Kajiya:1985:ARM, author = "J. T. Kajiya", editor = "B. A. Barsky", title = "Anisotropic Reflection Models", journal = "Computer Graphics", volume = "19", number = "3", pages = "15--21", month = Jul, year = "1985", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", conference = "held in San Francisco, CA; 22--26 July 1985", keywords = "I37 anisotropic reflection models", who = "Havran Vlastimil: REN-0138", } @InProceedings{Wang90-OPRIR, author = "Yigong Wang and Wayne A. Davis", month = may, year = "1990", title = "Octant {Priority} for {Radiosity} {Image} {Rendering}", booktitle = "Proceedings of Graphics Interface '90", pages = "83--91", publisher = "Morgan Kaufmann", address = "San Francisco, CA", keywords = "hemicube, space subdivision", who = "Havran Vlastimil: REN-0139", } @InProceedings{Bouatouch:1995:DMH, author = "Kadi Bouatouch and S. N. Pattanaik", title = "Discontinuity Meshing and Hierarchical MultiWavelet Radiosity", booktitle = "Graphics Interface '95", editor = "Wayne A. Davis and Przemyslaw Prusinkiewicz", year = "1995", organization = "Canadian Information Processing Society", publisher = "Canadian Human-Computer Communications Society", month = may, pages = "109--115", note = "ISBN 0-9695338-4-5", keywords = "radiosity, discontinuity mesh, wavelet", who = "Havran Vlastimil: REN-0140", } @InProceedings{Shinya:1994:PFD, author = "M. Shinya", booktitle = "Proceedings of Graphics Interface '94", title = "Post-filtering for Depth of Field Simulation with Ray Distribution Buffer", organization = "Canadian Information Processing Society", address = "Banff, Alberta, Canada", pages = "59--66", month = may, year = "1994", who = "Havran Vlastimil: REN-0141", } @Article{Fruhauf:1994:RNS, author = "T. Fr{\"u}hauf", title = "Raycasting of Nonregularly Structured Volume Data", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "13", number = "3", pages = "C/293--C/303", month = "????", year = "1994", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "C4260 (Computational geometry); C6130B (Graphics techniques)", conflocation = "Oslo, Norway; 12-16 Sept. 1994", conftitle = "15th Annual Conference and Exhibition. EUROGRAPHICS'94", corpsource = "Interactive Graphics Syst. Group., Darmstadt Tech. Univ., Germany", keywords = "algorithm; computation-; Computation-intensive technique; computational geometry; Computational space; computational space; context information; Context information; context information; data sets; Data sets; data sets; data visualisation; Direct rendering; direct rendering; intensive technique; interactive; interactive visualization system; Interactive visualization system; interactive visualization system; mathematical operations; Mathematical operations; measurement; Nonregularly structured volume data; nonregularly structured volume data; Numerical simulation; numerical simulation; ray tracing; raycasting; Raycasting; raycasting; rendering; rendering (computer graphics); Rendering algorithm; scientific; Scientific visualisation; seismic; Seismic measurement; systems; topology; Topology; ultrasonic inspection; Ultrasonic inspection; ultrasonic inspection; visualisation; volumetric data; Volumetric data", thesaurus = "Computational geometry; Data visualisation; Interactive systems; Ray tracing; Rendering [computer graphics]", treatment = "P Practical; T Theoretical or Mathematical", who = "Havran Vlastimil: REN-0142", } @Article{Pattanaik:1994:FWR, author = "S. N. Pattanaik and K. Bouatouch", title = "Fast Wavelet Radiosity Method", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "13", number = "3", pages = "C/407--C/420", month = "????", year = "1994", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "C4260 (Computational geometry); C6130B (Graphics techniques)", conflocation = "Oslo, Norway; 12-16 Sept. 1994", conftitle = "15th Annual Conference and Exhibition. EUROGRAPHICS'94", corpsource = "Campus de Beaulieu, IRISA, Rennes, France", keywords = "computational geometry; Computer graphics; computer graphics; decomposition technique; hierarchical; Hierarchical decomposition technique; inner products; interpolating wavelets; Interpolating wavelets; interpolating wavelets; multidimensional; Multidimensional inner products; optimal adaptive subdivision; Optimal adaptive subdivision; ray tracing; wavelet analysis; Wavelet analysis; wavelet radiosity method; Wavelet radiosity method; wavelet transforms", thesaurus = "Computational geometry; Ray tracing; Wavelet transforms", treatment = "T Theoretical or Mathematical", who = "Havran Vlastimil: REN-0143", } @Article{Dobashi:1994:SIL, author = "Y. Dobashi and K. Kaneda and T. Nakashima and H. Yamashita and T. Nishita and K. Tadamura", title = "Skylight for Interior Lighting Design", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "13", number = "3", pages = "C/85--C/96", month = "????", year = "1994", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "B8530 (Lighting technology); C6130B (Graphics techniques)", conflocation = "Oslo, Norway; 12-16 Sept. 1994", conftitle = "15th Annual Conference and Exhibition. EUROGRAPHICS'94", corpsource = "Hiroshima Univ., Japan", keywords = "computer graphics; Computer graphics; computer graphics; Illuminance; illuminance; interior lighting design; Interior lighting design; interior lighting design; lighting; planes; skylight; Skylight; transparent; Transparent planes; Window glass; window glass", thesaurus = "Computer graphics; Lighting", treatment = "A Application; P Practical", who = "Havran Vlastimil: REN-0144", } @Article{Deville:1994:SDM, author = "P. M. Deville and S. Merzouk and D. Cazier and J. C. Paul", title = "Spectral Data Modeling for a Lighting Application", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "13", number = "3", pages = "C/97--C/106", month = "????", year = "1994", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "B8530 (Lighting technology); C6130B (Graphics techniques)", conflocation = "Oslo, Norway; 12-16 Sept. 1994", conftitle = "15th Annual Conference and Exhibition. EUROGRAPHICS'94", corpsource = "CNRS, Nancy I Univ., Vandoeuvre les Nancy, France", keywords = "computer; computer graphics; Computer graphics; constraints; Constraints; graphics; image calculation process; Image calculation process; image calculation process; image generation; Image generation; lighting; lighting application; Lighting application; spectral analysis; spectral data modeling; Spectral data modeling; spectral data modeling; spectrum analysis; Spectrum analysis", thesaurus = "Computer graphics; Lighting; Spectral analysis", treatment = "A Application; P Practical", who = "Havran Vlastimil: REN-0145", } @Article{Schlick:1994:IBM, author = "C. Schlick", title = "An Inexpensive {BRDF} Model for Physically-Based Rendering", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "13", number = "3", pages = "C/233--C/246", month = "????", year = "1994", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "C1140G (Monte Carlo methods); C1180 (Optimisation techniques); C1180 (Optimisation techniques)C1140G (Monte Carlo methods); C4130 (Interpolation and function approximation); C6130B (Graphics techniques)", conflocation = "Oslo, Norway; 12-16 Sept. 1994", conftitle = "15th Annual Conference and Exhibition. EUROGRAPHICS'94", corpsource = "Lab. Bordeaux de Recherche en Inf., Bordeaux I Univ., Talence, France", keywords = "anisotropy; Anisotropy; anisotropy; Approximation methods; approximation methods; approximation theory; bidirectional; Bidirectional reflectance distribution function; BRDF model; computer; computer graphics; Computer graphics applications; conservation; energy; Energy conservation; graphics applications; hardware implementation; Hardware implementation; heterogeneous material; Heterogeneous material; Homogeneous material; homogeneous material; light; Light reflection; light reflection; microfacet theory; Microfacet theory; microfacet theory; Monte Carlo methods; Monte-Carlo rendering techniques; optimisation; Physically-based rendering; physically-based rendering; Physics; physics; reciprocity rule; Reciprocity rule; reflectance distribution function; reflection; rendering (computer graphics); self-; Self-shadowing; shadowing; Spectrum modification; spectrum modification; Subsurface reflection; subsurface reflection; surface reflection; Surface reflection", thesaurus = "Approximation theory; Computer graphics; Light reflection; Monte Carlo methods; Optimisation; Rendering [computer graphics]", treatment = "P Practical; T Theoretical or Mathematical", who = "Havran Vlastimil: REN-0146", } @Article{Tabatabai:1994:VRN, author = "B. Tabatabai and E. A. Sessarego and H. {E. (or F.??)} Mayer", title = "Volume Rendering on Non-Regular Grids", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "13", number = "3", pages = "C/247--C/258", month = "????", year = "1994", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "C1180 (Optimisation techniques); C4130 (Interpolation and function approximation); C4260 (Computational geometry); C6130B (Graphics techniques)", conflocation = "Oslo, Norway; 12-16 Sept. 1994", conftitle = "15th Annual Conference and Exhibition. EUROGRAPHICS'94", corpsource = "Inst. for Inf. Syst., Joanneum Res., Graz, Austria", keywords = "computational geometry; computer graphics; Computer graphics; computer graphics; digital; element types; finite element method; Finite element method; Function values; function values; geometry; Geometry; interpolation; Interpolation; interpolation; linear element types; Linear element types; linear element types; Mathematical treatment; mathematical treatment; method of control volumes; Method of control volumes; nonlinear; Nonlinear element types; Nonregular grids; nonregular grids; Numerical simulation; numerical simulation; optimisation; Optimizations; optimizations; rendering (computer graphics); Rendering process; rendering process; Shape functions; shape functions; simulation; simulation model; Simulation model; simulation model; volume rendering; Volume rendering", thesaurus = "Computational geometry; Computer graphics; Digital simulation; Interpolation; Optimisation; Rendering [computer graphics]", treatment = "P Practical; T Theoretical or Mathematical", who = "Havran Vlastimil: REN-0147", } @Article{Tanaka:1994:CSB, author = "T. Tanaka and T. Takahashi", title = "{Cross Scan Buffer} and its applications", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "13", number = "3", pages = "C/467--C/476", month = "????", year = "1994", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "C1160 (Combinatorial mathematics); C4260 (Computational geometry); C6130B (Graphics techniques)", conflocation = "Oslo, Norway; 12-16 Sept. 1994", conftitle = "15th Annual Conference and Exhibition. EUROGRAPHICS'94", corpsource = "Autonomous Robot Syst. Lab., NTT Human Interface Labs., Tokyo, Japan", keywords = "antialiasing; buffering; Buffering methods; computational geometry; Cross Scan Buffer; Cross Scanline Algorithm; Cross Scanline Buffer; hidden feature removal; hidden surface; Hidden surface removal; Image re-generation time; image re-generation time; Image scaling; image scaling; methods; perfect anti-aliasing; Perfect anti-aliasing; perfect anti-aliasing; removal; Shadow creation; shadow creation; texture mapping; Texture mapping; texture mapping; visible polygonal surfaces; Visible polygonal surfaces", thesaurus = "Antialiasing; Computational geometry; Hidden feature removal", treatment = "P Practical", who = "Havran Vlastimil: REN-0148", } @Article{Strothotte:1994:HRF, author = "T. Strothotte and B. Preim and A. Raab and J. Schumann and D. R. Forsey", title = "How to Render Frames and Influence People", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "13", number = "3", pages = "C/455--C/466", month = "????", year = "1994", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "C6130B (Graphics techniques); C6180 (User interfaces); C7440 (Civil and mechanical engineering computing); C7440 (Civil and mechanical engineering)", conflocation = "Oslo, Norway; 12-16 Sept. 1994", conftitle = "15th Annual Conference and Exhibition. EUROGRAPHICS'94", corpsource = "Dept. of Simulation and Graphics, Otto-von-Guericke Univ. of Magdeburg, Germany", keywords = "architectural CAD; architectural design; Architectural design; architectural drawings; Architectural drawings; architectural drawings; CAD; frame rendering; Frame rendering; hand-down images; Hand-down images; hand-down images; human factors; human-computer interaction; Human-computer interaction; information flow; Information flow; line styles; Line styles; objective process; Objective process; primitives; Primitives; primitives; prototypical; Prototypical renderer; renderer; rendering (computer graphics); rendering plants; Rendering plants; rendering plants; rendering shadows; Rendering shadows; rendering systems; Rendering systems; rendering systems; subjective processes; Subjective processes; theoretical framework; Theoretical framework; theoretical framework; user interfaces", thesaurus = "Architectural CAD; Human factors; Rendering [computer graphics]; User interfaces", treatment = "P Practical", who = "Havran Vlastimil: REN-0149", } @Article{Feda:1994:MCA, author = "M. Feda and W. Purgathofer", title = "A Median Cut Algorithm for Efficient Sampling of Radiosity Functions", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "13", number = "3", pages = "C/433--C/442", month = "????", year = "1994", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "C4130 (Interpolation and function approximation); C4260 (Computational geometry); C6130B (Graphics techniques)", conflocation = "Oslo, Norway; 12-16 Sept. 1994", conftitle = "15th Annual Conference and Exhibition. EUROGRAPHICS'94", corpsource = "Inst. of Comput. Graphics, Tech. Univ. Wien, Austria", keywords = "(computer graphics); B-splines; computational geometry; dark areas; Dark areas; form factors; Form factors; Illumination functions; illumination functions; lighting; median cut algorithm; Median cut algorithm; Occlusion detection; occlusion detection; radiosity functions; Radiosity functions; radiosity functions; ray; ray tracing; Ray tracing; ray tracing; rendering; sampling; Sampling; splines (mathematics); tracing", thesaurus = "Computational geometry; Lighting; Ray tracing; Rendering [computer graphics]; Splines [mathematics]", treatment = "P Practical; T Theoretical or Mathematical", who = "Havran Vlastimil: REN-0150", } @Article{Paulin:1994:AMG, author = "M. Paulin and J.-P. Jessel", title = "Adaptive Mesh Generation for Progressive Radiosity: {A} Ray-tracing Based Algorithm", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "13", number = "3", pages = "C/421--C/432", month = "????", year = "1994", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "C4260 (Computational geometry); C6130B (Graphics techniques)", conflocation = "Oslo, Norway; 12-16 Sept. 1994", conftitle = "15th Annual Conference and Exhibition. EUROGRAPHICS'94", corpsource = "IRIT, Univ. Paul Sabatier, Toulouse, France", keywords = "adaptive mesh generation; Adaptive mesh generation; computational cost; Computational cost; illumination function; Illumination function; illumination function; illumination problem; Illumination problem; interreflections; Interreflections; interreflections; mesh generation; progressive radiosity; Progressive radiosity; ray tracing; ray-; Ray-tracing; rendering (computer graphics); rendering algorithms; Rendering algorithms; sharp shadows; Sharp shadows; tracing", thesaurus = "Mesh generation; Ray tracing; Rendering [computer graphics]", treatment = "P Practical; T Theoretical or Mathematical", who = "Havran Vlastimil: REN-0151", } @InProceedings{Kumar:1995:IDL, author = "Subodh Kumar and Dinesh Manocha and Anselmo Lastra", title = "Interactive Display of Large-Scale {NURBS} Models", editor = "Pat Hanrahan and Jim Winget", pages = "51--58", booktitle = "1995 Symposium on Interactive {3D} Graphics", year = "1995", organization = "ACM SIGGRAPH", month = apr, note = "ISBN 0-89791-736-7", who = "Havran Vlastimil: REN-0152", } @Article{Mitchell:1992:ICR, author = "Don Mitchell and Pat Hanrahan", editor = "Edwin E. Catmull", title = "Illumination from curved reflectors", journal = "Computer Graphics", volume = "26", number = "2", pages = "283--291", month = Jul, year = "1992", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", conference = "held in Chicago, Illinois; 26--31 July 1992", keywords = "automatic differentiation, caustics, differential geometry, geometrical optics, global illumination, interval arithmetic, ray tracing, wavefronts", who = "Havran Vlastimil: REN-0153", } @Article{Smits:1992:IRA, author = "Brian E. Smits and James R. Arvo and David H. Salesin", editor = "Edwin E. Catmull", title = "An importance-driven radiosity algorithm", journal = "Computer Graphics", volume = "26", number = "2", pages = "273--282", month = Jul, year = "1992", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", conference = "held in Chicago, Illinois; 26--31 July 1992", keywords = "importance function, adaptive meshing, hierarchical radiosity, adjoint transport equation, global illumination, view-dependence", who = "Havran Vlastimil: REN-0154", } @Article{Ward:1992:MMA, author = "Gregory J. Ward", editor = "Edwin E. Catmull", title = "Measuring and modeling anisotropic reflection", journal = "Computer Graphics", volume = "26", number = "2", pages = "265--272", month = Jul, year = "1992", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", conference = "held in Chicago, Illinois; 26--31 July 1992", keywords = "reflectance, monte carlo, ray tracing, shading", who = "Havran Vlastimil: REN-0155", } @Article{Westin:1992:PRF, author = "Stephen H. Westin and James R. Arvo and Kenneth E. Torrance", editor = "Edwin E. Catmull", title = "Predicting reflectance functions from complex surfaces", journal = "Computer Graphics", volume = "26", number = "2", pages = "255--264", month = Jul, year = "1992", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", conference = "held in Chicago, Illinois; 26--31 July 1992", keywords = "spherical harmonics, monte carlo, anisotropic reflection, brdf", who = "Havran Vlastimil: REN-0156", } @Article{He:1992:FAL, author = "Xiao D. He and Patric O. Heynen and Richard L. Phillips and Kenneth E. Torrance and David H. Salesin and Donald P. Greenberg", editor = "Edwin E. Catmull", title = "A fast and accurate light reflection model", journal = "Computer Graphics", volume = "26", number = "2", pages = "253--254", month = Jul, year = "1992", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", conference = "held in Chicago, Illinois; 26--31 July 1992", keywords = "reflectance model, multimedia", who = "Havran Vlastimil: REN-0157", } @Article{Segal:1992:FSL, author = "Mark Segal and Carl Korobkin and Rolf van Widenfelt and Jim Foran and Paul Haeberli", editor = "Edwin E. Catmull", title = "Fast shadows and lighting effects using texture mapping", journal = "Computer Graphics", volume = "26", number = "2", pages = "249--252", month = Jul, year = "1992", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", conference = "held in Chicago, Illinois; 26--31 July 1992", who = "Havran Vlastimil: REN-0158", } @Article{Takala:1992:SR, author = "Tapio Takala and James Hahn", editor = "Edwin E. Catmull", title = "Sound rendering", journal = "Computer Graphics", volume = "26", number = "2", pages = "211--220", month = Jul, year = "1992", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", conference = "held in Chicago, Illinois; 26--31 July 1992", keywords = "audio, multimedia, soundtrack, physically-based modeling, virtual reality", who = "Havran Vlastimil: REN-0159", } @InProceedings{borges91b, author = "Carlos F. Borges", title = "Trichromatic approximation for computer graphics illumination models", pages = "101--104", journal = "Computer Graphics (SIGGRAPH '91 Proceedings)", volume = "25", number = "4", year = "1991", month = Jul, editor = "Thomas W. Sederberg", conference = "held in Las Vegas, Nevada; 28 July - 2 August 1991", keywords = "illumination models, trichromatic approximation, tristimulus coordinates, spectral power density spd, spectral reflectance, seminorm", annote = "The complexity of computer graphics illumination models and the associated need to find ways of reducing evaluation time has led to the use of two methods for simplifying the spectral data needed for an exact solution. The first method, where spectral data is sampled at a number of discrete points, has been intensively investigated and bounds for the error are known. Unfortunately, the second method, where spectral data is replaced with tristimulus values (such as RGB values), is very little understood even though it is widely used. In this paper we examine the error incurred by the use of this method by investigating the problem of approximating the tristimulus coordinated of light reflected from a surface from those of the source and the surface. A variation on a well known and widely used approximation is presented. This variation uses the XYZ primaries which have unique properties that yield straightforward analytical bounds for the approximation error. This analysis is important because it gives a sound mathematical footing to the widely used method of trichromatic approximation. The error bounds will give some insights into the factors that affect accuracy and will indicate why this method often works quite well in practice.", who = "Havran Vlastimil: REN-0160", } @InProceedings{kirk91b, author = "David Kirk and James Arvo", title = "Unbiased sampling techniques for image synthesis", pages = "153--156", journal = "Computer Graphics (SIGGRAPH '91 Proceedings)", volume = "25", number = "4", year = "1991", month = Jul, editor = "Thomas W. Sederberg", conference = "held in Las Vegas, Nevada; 28 July - 2 August 1991", keywords = "adaptive sampling, antialiasing, monte carlo, statistical bias", annote = "We examine a class of adaptive sampling techniques employed in image synthesis and show that those commonly used for efficient anti-aliasing are statistically biased. This bias is dependent upon the image function being sampled as well as the strategy for determining the number of samples to use. It is most prominent in areas of high contrast and is attributable to early stages of sampling systematically favoring one extreme or the other. If the expected outcome of the entire adaptive sampling algorithm is considered, we find that the bias of the early decisions is still present in the final estimator. We propose an alternative strategy for performing adaptive sampling that is unbiased but potentially more costly. We conclude that it may not always be practical to mitigate this source of bias, but as a source of error it should be considered when high accuracy and image fidelity are a central concern.", who = "Havran Vlastimil: REN-0161", } @Article{Velho:1991:DHS, author = "Luiz Velho and Jonas de Miranda Gomes", editor = "Thomas W. Sederberg", title = "Digital halftoning with space filling curves", journal = "Computer Graphics", volume = "25", number = "4", pages = "81--90", month = Jul, year = "1991", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", conference = "held in Las Vegas, Nevada; 28 July -- 2 August 1991", keywords = "digital halftoning, quantization, dithering, space filling curves, bilevel display", who = "Havran Vlastimil: REN-0162", } @InProceedings{hanrahan91a, author = "Pat Hanrahan and David Salzman and Larry Aupperle", title = "A rapid hierarchical radiosity algorithm", pages = "197--206", journal = "Computer Graphics (SIGGRAPH '91 Proceedings)", volume = "25", number = "4", year = "1991", month = Jul, editor = "Thomas W. Sederberg", conference = "held in Las Vegas, Nevada; 28 July - 2 August 1991", keywords = "radiosity, ray tracing, global illumination, n-body problem", annote = "This paper presents a rapid hierarchical radiosity algorithm for illuminating scenes containing large polygonal patches. The algorithm constructs a hierarchical representation of the form factor matrix by adaptively subdividing patches into subpatches according to a user- supplied error bound. The algorithm guarantees that all form factors are calculated to the same precision, removing many common image artifacts due to in accurate form factors. More importantly, the algorithm decomposes the form factor matrix into at most O(n) blocks (where n is the number of elements). Previous radiosity algorithms represented the element-to- element transport interactions with n2 form factors. Visibility algorithms are given that work well with this approach. Standard techniques for shooting and gathering can be used with the hierarchical representation to solve for equilibrium radiosities, but we also discuss using a brightness-weighted error criteria, in conjuction with multigridding, to even more rapidly progressively refine the image.", who = "Havran Vlastimil: REN-0163", } @InProceedings{sillion91b, author = "Francois X. Sillion and James R. Arvo and Stephen H. Westin and Donald P. Greenberg", title = "A global illumination solution for general reflectance distributions", pages = "187--196", journal = "Computer Graphics (SIGGRAPH '91 Proceedings)", volume = "25", number = "4", year = "1991", month = Jul, editor = "Thomas W. Sederberg", conference = "held in Las Vegas, Nevada; 28 July - 2 August 1991", keywords = "global illumination, brdf, specular reflection, directional-diffuse, progressive radiosity, spherical harmonics", annote = "A general light transfer simulation algorithm for environments composed of materials with arbitrary reflectance functions is presented. This algorithm removes the previous practical restriction to ideal specular and/or ideal diffuse environments, and supports complex physically based reflectance distributions. This is accomplished by extending previous two-pass ray-casting radiosity approaches to handle non-uniform intensity distributions, and resolving all possible energy transfers between sample points. An implementation is described based on a spherical harmonic decomposition for encoding both bidirectional reflectance distribution functions for materials, and directional intensity distributions for illuminated surfaces. The method compares favorably with experimental measurements.", who = "Havran Vlastimil: REN-0164", } @InProceedings{he91a, author = "Xiao D. He and Kenneth E. Torrance and Francois X. Sillion and Donald P. Greenberg", title = "A comprehensive physical model for light reflection", pages = "175--186", journal = "Computer Graphics (SIGGRAPH '91 Proceedings)", volume = "25", number = "4", year = "1991", month = Jul, editor = "Thomas W. Sederberg", conference = "held in Las Vegas, Nevada; 28 July - 2 August 1991", keywords = "reflectance model, specular and diffuse reflection, comparison with experiment", annote = "A new general reflectance model for computer graphics is presented. The model is based on physical optics and describes specular, directional diffuse, and uniform diffuse reflection by a surface. The reflected light pattern depends on wavelength, incidence angle, two surface roughness parameters, and surface refractive index. The formulation is self consistent in terms of polarization, surface roughness, masking/shadowing, and energy. The model applies to a wide range of materials and surface finishes and provides a smooth transition from diffuse-like to specular reflection as the wavelength and incidence angle are increased or the surface roughness is decreased. The model is analytic and suitable for Computer Graphics applications. Predicted reflectance distributions compare favorably with experiment. The model is applied to metallic, nonmetallic, and plastic materials, with smooth and rough surfaces.", who = "Havran Vlastimil: REN-0165", } @InProceedings{chen91b, author = "Shenchang Eric Chen and Holly E. Rushmeier and Gavin Miller and Douglass Turner", title = "A progressive multi-pass method for global illumination", pages = "165--174", journal = "Computer Graphics (SIGGRAPH '91 Proceedings)", volume = "25", number = "4", year = "1991", month = Jul, editor = "Thomas W. Sederberg", conference = "held in Las Vegas, Nevada; 28 July - 2 August 1991", keywords = "radiosity, ray tracing, monte carlo, caustics, global illumination, progressive refinement", annote = "A new progressive global illumination method is presented which produces approximate images quickly, and then continues to systematically produce more accurate images. The method combines the existing methods of progressive refinement radiosity, Monte Carlo path tracing and light ray tracing. The method does not place any limitation on surface properties such as ideal Lambertian or mirror-like. To increase efficiency and accuracy, the new concepts of light source reclassification, caustics reconstruction, Monte Carlo path tracing with a radiosity preprocess and an interruptible radiosity solution are introduced. The method presents the user with most useful information about the scene as early a possible by reorganizing the method into a radiosity pass, a high frequency refinement pass and a low frequency refinement pass. The implementation of the method is demonstrated, and sample images are presented.", who = "Havran Vlastimil: REN-0166", } @Article{Muraki:1991:VSD, author = "Shigeru Muraki", editor = "Thomas W. Sederberg", title = "Volumetric shape description of range data using ``Blobby Model''", journal = "Computer Graphics", volume = "25", number = "4", pages = "227--235", month = Jul, year = "1991", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", conference = "held in Las Vegas, Nevada; 28 July -- 2 August 1991", keywords = "blobby model, generalized algebraic surface, implicit surface, volumetric shape description, range data analysis, energy minimization, ray tracing", who = "Havran Vlastimil: REN-0167", } @InProceedings{baum91a, author = "Daniel R. Baum and Stephen Mann and Kevin P. Smith and James M. Winget", title = "Making radiosity usable: Automatic preprocessing and meshing techniques for the generation of accurate radiosity solutions", pages = "51--60", journal = "Computer Graphics (SIGGRAPH '91 Proceedings)", volume = "25", number = "4", year = "1991", month = Jul, editor = "Thomas W. Sederberg", conference = "held in Las Vegas, Nevada; 28 July - 2 August 1991", keywords = "radiosity, mesh-generation", annote = "Generating accurate radiosity solutions of real world environments is user-intensive and requires significant knowledge of the method. As a result, few end-users such as architects and designers use it. The output of most commercial modeling packages must be substantially {"}cleaned-up{"} to satisfy the geometrical and topological criteria imposed by radiosity solution algorithms. Furthermore, the mesh used as the basis of the radiosity computation must meet several additional requirements for the solution to be accurate. \\ A set of geometrical and topological requirements is formalized that when satisfied yields an accurate radiosity solution. A series of algorithms is introduced that automatically processes raw model databases to meet these requirements. Thus, the end-user can concentrate on the design rather than on the details of the radiosity solution process. These algorithms are generally independent of the radiosity solution technique used, and thus apply to all mesh based radiosity methods.", who = "Havran Vlastimil: REN-0168", } @InProceedings{dorsey91a, author = "Julie O'B. Dorsey and Francois X. Sillion and Donald P. Greenberg", title = "Design and simulation of opera lighting and projection effects", pages = "41--50", journal = "Computer Graphics (SIGGRAPH '91 Proceedings)", volume = "25", number = "4", year = "1991", month = Jul, editor = "Thomas W. Sederberg", conference = "held in Las Vegas, Nevada; 28 July - 2 August 1991", keywords = "opera and stage design, angular projection, simulation, radiosity directional light sources, texture mapping", annote = "A major problem challenging opera designers is the inability to coordinate lighting, projection systems, and set designs in the preliminary planning phase. New computer graphics techniques, which provide the set and lighting designer the opportunity to evaluate, test, and control opera designs prior to the construction of full scale systems are presented. These techniques - light source input, simulation of directional lighting, modeling of scenic projection systems, and full three-dimensional simulation - show the potential for the use of computer graphics in theater design. \\ The light source input component consists of a program for assigning light source attributes with a set of theater lighting icons. This module allows a designer to specify light source characteristics in a way familiar to the discipline and to make preliminary evaluations of the lighting conditions. \\ An extended progressive radiosity method is introduced to simulate the directional lighting characteristics which are specified by the input program. \\ A new projection approach is presented to simulate the optical effects of scenic projectors. In addition, a solution to the distortion problem produced by angular projections is described. \\ The above components are integrated to produce full three- dimensional simulations of the global illumination effects in an opera scene.", who = "Havran Vlastimil: REN-0169", } @InProceedings{perlin89a, author = "Ken Perlin and Eric M. Hoffert", title = "Hypertexture", pages = "253--262", journal = "Computer Graphics (SIGGRAPH '89 Proceedings)", volume = "23", number = "3", year = "1989", month = Jul, editor = "Jeffrey Lane", conference = "held in Boston, Massachusetts; 31 July -- 4 August 1989", keywords = "volume rendering, noise, turbulence, translucency, opacity, volume modeling, parallel rendering, distributed rendering, hypertexture, generalized boolean, density modulation function DMF, ray marching, furrier synthesis", annote = "volume-related texturing via a ``ray marching'' algorithm \\ We model phenomena intermediate between shape and texture by using space-filling applicative functions to modulate density. The model is essentially an extension of procedural solid texture synthesis, but evaluated throughout a volumetric region instead of only at surfaces. \\ We have been able to obtain visually realistic representations of such shape+texture ({\em hypertexture}) phenomena as hair, fur, fire, glass, fluid flow and erosion effects. We show how this is done, first by describing a set of base level functions to provide basic texture and control capabilities, then by combining these to synthesize various phenomena. \\ Hypertexture exists within an intermediate region between object and non-object. We introduce a notion of {\em generalized boolean shape operators} to combine shapes having such a region. \\ Rendering is accomplished by {\em ray marching} from the eye point through the volume to accumulate opacity along each ray. We have implemented our hypertexture rendering algorithms on a traditional serial computer, a distributed network of computers and a coarse-grain MIMD computer. Extensions to the rendering technique incorporating refraction and reflection effects are discussed.", who = "Havran Vlastimil: REN-0170", } @Article{Buckalew:1989:INF, author = "Chris Buckalew and Donald Fussell", editor = "Jeffrey Lane", title = "Illumination Networks: Fast Realistic Rendering with General Reflectance Functions", journal = "Computer Graphics", volume = "23", number = "3", pages = "89--98", month = Jul, year = "1989", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", conference = "held in Boston, Massachusetts; 31 July -- 4 August 1989", keywords = "global illumination, radiosity, ray tracing, memory, specular, diffuse, data structure, incremental, ray space", who = "Havran Vlastimil: REN-0171", } @InProceedings{rockwood89a, author = "Alyn Rockwood and Kurt Heaton and Tom Davis", title = "Real-Time Rendering of Trimmed Surfaces", pages = "107--116", journal = "Computer Graphics (SIGGRAPH '89 Proceedings)", volume = "23", number = "3", year = "1989", month = Jul, editor = "Jeffrey Lane", conference = "held in Boston, Massachusetts; 31 July -- 4 August 1989", keywords = "trimmed NURBS and Bezier surfaces, faceting, roots of nonlinear equations, view-driven tesselation and graphics systems", who = "Havran Vlastimil: REN-0172", } @Article{Cohen:1985:HAR, author = "M. F. Cohen and D. P. Greenberg", editor = "B. A. Barsky", title = "The Hemi-Cube: {A} Radiosity For Complex Environments", journal = "Computer Graphics", volume = "19", number = "3", pages = "31--40", month = Jul, year = "1985", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", annote = "One of the early papers on radiosity. Introduces the use of the hemi-cube for form factor calculations. Doesn't mention parallelism, but its use is hinted at.", conference = "held in San Francisco, CA; 22--26 July 1985", keywords = "I37 hemi-cube, I37 image synthesis", who = "Havran Vlastimil: REN-0173", } @TechReport{Sochor98, author = "J. Sochor and R. Oslejsek", title = "Object-oriented Graphics Architectures for Global Illumination", pages = 17, institution = "Faculty of Informatics, Masaryk University, Brno, Czech Republic", year = 1998, month = dec, number = "FIMU-RS-98-08", http = "http://www.fi.muni.cz/informatics/reports/pdf/FIMU-RS-98-08.pdf", who = "Havran Vlastimil: REN-0174", } @Article{Blinn76, author = "J.F. Blinn and M.E. Newell", title = "Texture and Reflection in Computer Generated Images", journal = "CACM", volume = "19", number = "10", month = oct, year = "1976", pages = "542--547", keywords = "computer graphics, graphics display, shading, hidden surface removal", who = "Havran Vlastimil: REN-0175", } @Article{Levin76, author = "Joshua Levin", title = "A Paramatric Algorithm for Drawing Pictures of Solid Objects Composed of Quadric Surfaces", journal = "CACM", volume = "19", number = "10", month = oct, year = "1976", pages = "555--563", keywords = "computer graphics, hidden surface removal, quadric surface intersection curves", who = "Havran Vlastimil: REN-0176", } @InProceedings{Fournier95-LGIB, author = "Alain Fournier", editor = "P. M. Hanrahan and W. Purgathofer", year = "1995", title = "From {Local} to {Global} {Illumination} and {Back}", booktitle = "Rendering Techniques '95 (Proceedings of the Sixth Eurographics Workshop on Rendering)", pages = "127--136", publisher = "Springer-Verlag", address = "New York, NY", comments = "ISBN 3-211-82733-1; Reprinted as Appendix B in ACM SIGGRAPH '96 Course Notes - Global Illumination in Architecture and Entertainment", who = "Havran Vlastimil: REN-0177", } @InProceedings{Sillion95-CARCG, author = "Francois Sillion and George Drettakis and Cyril Soler", editor = "P. M. Hanrahan and W. Purgathofer", year = "1995", title = "A {Clustering} {Algorithm} for {Radiance} {Calculation} in {General} {Environments}", booktitle = "Rendering Techniques '95 (Proceedings of the Sixth Eurographics Workshop on Rendering)", pages = "196--205", publisher = "Springer-Verlag", address = "New York, NY", comments = "ISBN 3-211-82733-1", who = "Havran Vlastimil: REN-0178", } @TechReport{EVL-1995-8, year = "1995", type = "Research paper", title = "The Stochastic Ray Method for Radiosity", url = "http://visinfo.zib.de/EVlib/Show?EVL-1995-8", author = "L{\'a}szl{\'o} Neumann and Werner Purgathofer and Robert F. Tobler and Attila Neumann and Pavol Eli{\'a}s and Martin Feda and Xavier Pueyo", abstract = "This paper solves the system of radiosity equations with anumerical approach rather than with a physical interpretation as most current algorithms do. Due to the high complexity of the problem for highly complex scenes, a stochastic variation of Jacobi iteration is developed which converges stochastically tothe correct solution. The new method, called Stochastic Ray Method, is a significant improvement of Stochastic Radiosity. Alarge number of independent rays is chosen stochastically by importance sampling of the patches according to their power afterthe previous iteration step. They all carry an equal amount of power into random directions, thereby representing together thetotal energy interreflection of the entire environment in a stochastic manner. Assuming a correctly distributed initialsolution, which can be reached easily, the iteration process converges quickly and reduces the error in the result faster thanother stochastic radiosity approaches. The new algorithm can easily be extended to treat various phenomena which arenormally rather costly to incorporate in radiosity environments: specular reflection and specular transmittance, non-diffuseemission and point light sources.", language = "en", institution = "Institute of Computer Graphics, Technical University of Vienna", who = "Havran Vlastimil: REN-0179", } @InProceedings{Dutre95, author = "Ph. Dutre' and Y. D. Willems", title = "Potential-driven Monte Carlo Particle Tracing for Diffuse Environments with Adaptive Probability Density Functions", booktitle = "Rendering Techniques '95 (Proceedings of the Sixth Eurographics Workshop on Rendering)", pages = "306--315", publisher = "Springer-Verlag", address = "New York", year = "1995", keywords = "monte carlo", who = "Havran Vlastimil: REN-0180", } @InProceedings{Potmesil83, author = "Michael Potmesil and Indranil Chakravarty", title = "Modeling Motion Blur in Computer-Generated Images", booktitle = "Computer Graphics (SIGGRAPH '83 Proceedings)", pages = "389--99", month = Jul, year = "1983", keywords = "motion blur", note = "Published as Computer Graphics (SIGGRAPH '83 Proceedings), volume 17, number 3", who = "Havran Vlastimil: REN-0181", } @Article{Potmesil:1981:LAC, author = "M. Potmesil and I. Chakravarty", title = "A lens and aperture {CAM} model for synthetic image generation", journal = "Computer Graphics", volume = "15", number = "3", pages = "297--305", month = Aug, year = "1981", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", conference = "held in Dallas, Texas; July 1981", keywords = "I33 synthetic image generation", who = "Havran Vlastimil: REN-0182", } @TechReport{EVL-1994-30, year = "1994", type = "Research paper", title = "Coherence in scan-line algorithms for {CSG}", url = "http://visinfo.zib.de/EVlib/Show?EVL-1994-30", author = "Eduard Gr{\"o}ller and Peter Brunner", abstract = "Scan-line algorithms for visibility calculation exploit various types of coherence properties. Several scan-line algorithms for Constructive Solid Geometry (CSG) are discussed. In one approach CSG primitives are represented by polygonal approximations. Another technique processes CSG primitives as general quadric surfaces. We investigate the handling of frequently occurring quadric surfaces (cube, cone, sphere, cylinder) as distinct cases. Thus the differing properties of such objects can be used more efficiently than a uniform approach would allow. A so called eBRep (extended Boundary Representation) is defined for the frequently occurring quadric surfaces. An eBRep is an exact representation of a quadric object and contains curved edges and faces. For each of the above mentioned quadric surfaces a different, geometry dependent eBRep is specified. A comparison between the polygon-based scan-line algorithm for CSG and our eBRep based approach is done. eBRep is a storage efficient exact representation of quadric surfaces, well suited for scan-line visibility determination.", language = "en", keywords = "CSG, quadrics, scan line algorithm, extended BRep, curved edges", institution = "Institute for Computergraphics, Technical University Vienna", who = "Havran Vlastimil: REN-0183", } @InProceedings{Pulli:1997:VBR, author = "Kari Pulli and Michael Cohen and Tom Duchamp and Hugues Hoppe and Linda Shapiro and Werner Stuetzle", title = "View-based Rendering: Visualizing Real Objects from Scanned Range and Color Data", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wien", address = "New York City, NY", month = jun, pages = "23--34", note = "ISBN 3-211-83001-4", annote = "Modeling arbitrary real objects is difficult and rendering textured models typically does not result in realistic images. We describe a new method for displaying scanned real objects, called view-based rendering. The method takes as input a collection of colored range images covering the objectand creates a collection of partial object models. These partial models are rendered separately using traditional graphics hardware and blended together using various weights and soft z-buffering. We demonstrate interactive viewing of real, non-trivial objects that would be difficult to model using traditional methods.", who = "Havran Vlastimil: REN-0184", } @InProceedings{Bolin:1997:EMM, author = "Mark A. Bolin and Gary W. Meyer", title = "An Error Metric for Monte Carlo Ray Tracing", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wien", address = "New York City, NY", month = jun, pages = "57--68", note = "ISBN 3-211-83001-4", annote = "A method is presented for characterizing and error in Monte Carlo realistic image synthesis calculations. An error metric has been developed that can be used to control the variance in the final picture by choosing both the number of rays to be cast into the iamge plane and the number of rays to be spawned at each bounce in the environment. The method provides specific guidance in how to apply Russian Roulette and splitting at each level of the ray tree. An initial implementation of the method has been done to test the theory and to illustrate its mechanics.", who = "Havran Vlastimil: REN-0185", } @InProceedings{Stuerzlinger:1997:IRG, author = "Wolfgang St{\"{u}}rzlinger and Rui Bastos", title = "Interactive Rendering of Globally Illuminated Glossy Scenes", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wien", address = "New York City, NY", month = jun, pages = "93--102", note = "ISBN 3-211-83001-4", annote = "Global illumination simulates all transfers of light in a scene. The results of the simulation are then used to generate photo-realistic images. Scenes with diffuse surfaces only can be displayed in real-time using the results of radiosity methods. Images of scenes with more general surfaces are created with methods based on ray tracing but do not achieve interactive frame rates. This paper presents a new algorithm for the display of globally illuminated scenes at interactive speeds. A photon tracing phase computes an approximation to the global illumination. The rendering phase splats the contribution of each photon hit onto the corresponding surface taking reflectance properties and viewing direction into account. Results demonstrate that this method allows to render images of globally illuminated scenes with glossy surfaces at interactive frame rates.", who = "Havran Vlastimil: REN-0186", } @InProceedings{Pighin:1997:PPR, author = "Fr{\'{e}}d{\'{e}}ric P. Pighin and Dani Lischinski and David Salesin", title = "Progressive Previewing of Ray-Traced Images Using Image Plane Discontinuity Meshing", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wien", address = "New York City, NY", month = jun, pages = "115--126", note = "ISBN 3-211-83001-4", annote = "This paper presents a new method for progressively previewing a ray-traced image while it is being computed. Our method constructs and incrementally updates a constrained Delaunay triangulation of the image plane. The points in the triangulation correspond to all of the image samples that have been computed by the ray tracer, and the constraint edges correspond to various important discontinuity edges in the image. The triangulation is displayed using hardware Gouraud shading, yielding a piecewise-linear approximation to the final image. Texture mapped surfaces, as well as other regions in the image that are not well approximated by linear interpolation, are handled with the aid of hardware texture mapping.", who = "Havran Vlastimil: REN-0187", } @InProceedings{Wong:1997:GDT, author = "{Tien-Tsin} Wong and {Wai-Yin} Ng and {Pheng-Ann} Heng", title = "A Geometry Dependent Texture Generation Framework for Simulating Surface Imperfections", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wien", address = "New York City, NY", month = jun, pages = "139--150", note = "ISBN 3-211-83001-4", annote = "To model surface imperfections and weathering, we propose a two-step texture generation framework in between manual texture synthesis and automatic physical simulation. Although the pattern of blemishes looks random, the systematic and geometry dependent nature of the underlying distribution is still observable. A distribution of tendency (potential to contain blemishes) is modeled in the first step, which includes user control and geometric information. The second generates and distributes an irregular blemish pattern according to the modeled tendency distribution. As examples we model three common surface imperfections; dust accumulation, patina and peeling.", who = "Havran Vlastimil: REN-0188", } @InProceedings{Willmott:1997:ECP, author = "Andrew J. Willmott and Paul S. Heckbert", title = "An Empirical Comparison of Progressive and Wavelet Radiosity", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wien", address = "New York City, NY", month = jun, pages = "175--186", note = "ISBN 3-211-83001-4", annote = "This paper presents a comparison of basic progressive and wavelet radiosity algorithms. Several variants of each algorithm were run on a set of scenes at several parameter settings, and results were examined in terms of their error, speed, and memory consumption. We did not compare more advanced variations such as clustering or discontinuity meshing. Our results show that progressive radiosity with substructuring works fairly well for all scenes. Among wavelet methods, the Haar basis works best, while higher order methods suffer because of extreme memory consumption and because poor visibility handling causes discontinuous, blocky shadows.", who = "Havran Vlastimil: REN-0189", } @InProceedings{Daubert:1997:HLS, author = "Katja Daubert and Hartmut Schirmacher and Fran{\c{c}}ois X. Sillion and George Drettakis", title = "Hierarchical Lighting Simulation for Outdoor Scenes", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wien", address = "New York City, NY", month = jun, pages = "229--238", note = "ISBN 3-211-83001-4", annote = "Lighting algorithms for outdoor scenes suffer from the sheer geometric and lighting complexity of such environments. In this paper we introduce an efficient, hierarchical solution to the problem of outdoor illumination. Data structures and sampling algorithms are presented, permitting the integration of complex and natural objects in a hierarchical radiosity simulation system. This new approach allows the hierarchical simulation of radiant energy exchanges in outdoor scenes for the first time, including terrain and botanical models as well as sunlight and skylight. This is accomplished by providing the necessary tools to treat terrain meshes as a hierarchy of light-exchanging objects, as well as an efficient hierarchical representation for the sky dome. In addition, refinement criteria are adapted to the particular characteristics of natural lighting. Results of our implementation are presented including naturally-lit images of terrain-maps, trees and buildings.", who = "Havran Vlastimil: REN-0190", } @InProceedings{Myszkowski:1997:LRU, author = "Karol Myszkowski", title = "Lighting Reconstruction Using Fast and Adaptive Density Estimation Techniques", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wien", address = "New York City, NY", month = jun, pages = "251--262", note = "ISBN 3-211-83001-4", annote = "Monte Carlo (MC) photon shooting approach is becoming an important global illumination technique in research and commercial applications. In this work, we focus on the problem of lighting reconstruction for planar surfaces. Our contribution is in the development of new, efficient photon density estimation techniques. We formulate local error measures of lighting reconstruction which under some reasonable constraints imposed on the lighting function that behave like the actual error. The minimization of our error estimates is very fast for planar surfaces and usually leads to a better quality lighting result than traditional methods. Also, the local error estimation offers more information than global error measures usually provided by MC solvers, which are not good predictors of image quality. We compare the actual error resulting from various techniques, and evaluate the visual appearance of the reconstructed lighting.", who = "Havran Vlastimil: REN-0191", } @InProceedings{Bustillo:1997:NEU, author = "Eduardo Bustillo", title = "A Neuro-Evolutionary Unbiased Global Illumination Algorithm", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wien", address = "New York City, NY", month = jun, pages = "263--274", note = "ISBN 3-211-83001-4", annote = "In this paper we present a two pass unbiased global illumination rendering algorithm. First pass calculations are done shooting rays from light sources and storing directional information in a growing adaptive neural gas structure. The second pass is a ray tracing process which uses this information to create an evolving population of rays that tend to optimally sample their surroundings. Finally, weighted Monte Carlo integration is used with a dynamic Voronoi diagram to reduce uncertainty in the solution.", who = "Havran Vlastimil: REN-0192", } @InProceedings{Blasi:1997:ART, author = "Philippe Blasi and Bertrand Le Sa{\"{e}}c and G{\'{e}}rard Vignoles", title = "Application of Rendering Techniques to Monte-Carlo Physical Simulation of Gas Diffusion", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wien", address = "New York City, NY", month = jun, pages = "297--308", note = "ISBN 3-211-83001-4", keywords = "gas diffusion, Monte-Carlo simulation, image rendering, tesselation, distance image, spatial partitioning", annote = "Gas diffusion in a microporous media is strongly analogous to light transport in a scene. Interaction of light with surfaces has a counterpart in Knudsen diffusion and light dispersion in participating media is very similar to gaseous bulk diffusion. On behalf of this fact, a Monte-Carlo simulation method has been designed to compute gas diffusivities and related properties in 3D images of porous media, making use of techniques originated in the domain of image rendering, such as tesselation, spatial partitioning, distance images, optimized intersection tests as well as in the domain of physical simulations, such as microscopic/macroscopic random walk algorithms. Putting all these methods together results in a very efficient algorithm allowing to determine accurately transport properties in real porous media from imaging techniques such as X-ray tomography.", who = "Havran Vlastimil: REN-0193", } @InProceedings{Perez:1997:GIT, author = "Frederic P{\'{e}}rez and Xavier Pueyo and Fran{\c{c}}ois X. Sillion", title = "Global Illumination Techniques for the Simulation of Participating Media", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wien", address = "New York City, NY", month = jun, pages = "309--320", note = "ISBN 3-211-83001-4", annote = "This paper surveys global illumination algorithms for environments including participating media and accounting for multiple scattering. The objective of this survey is the characterization of those methods: Identification of their base techniques, their assumptions, limitations and range of utilization. To this end, the algorithms are grouped into functional categories and each method is briefly reviewed, with a discussion of its complexity and its pros and cons. We finish by discussing some applications as well as remaining areas for investigation.", who = "Havran Vlastimil: REN-0194", } @InProceedings{Christensen:1997:GIP, author = "Per Christensen", title = "Global Illumination for Professional {3D} Animation, Visualization, and Special Effects", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wien", address = "New York City, NY", month = jun, pages = "321--326", note = "ISBN 3-211-83001-4", annote = "The simulation of global illumination has expanded from pure research to industrial software development. This has created new challenges to meet the requirements of professional 3D rendering software users in digital media authoring and visualization. This paper describes these requirements and discusses the approach the company mental images has taken towards fulfilling them.", who = "Havran Vlastimil: REN-0195", } @TechReport{Wilke97-PRLCG*, author = "A. Wilkie and R. F. Tobler and W. Purgathofer", year = "1997", title = "Photon Radiosity Lightmaps for {CSG} Solids", number = "Technical Report TR-186-2-97-19", note = "Available as ftp://ftp.cg.tuwien.ac.at/pub/TR/97/TR-186-2-97-19Paper.ps.gz", address = "Vienna, Austria", institution = "Vienna University of Technology", keywords = "CSG, Functional Radiosity, Stochastic Radiosity, Lightmaps", who = "Havran Vlastimil: REN-0196", } @InProceedings{Tamstorf:1997:ASB, author = "Rasmus Tamstorf and Henrik Wann Jensen", title = "Adaptive Sampling and Bias Estimation in Path @acing", booktitle = "Eurographics Rendering Workshop 1997", editor = "Julie Dorsey and Philipp Slusallek", year = "1997", organization = "Eurographics", publisher = "Springer Wien", address = "New York City, NY", month = jun, pages = "285--296", note = "ISBN 3-211-83001-4", annote = "One of the major problems in Monte Carlo based methods for global illumination is noise. This paper investigates adaptive sampling as a method to alleviate the problem. We introduce a new refinement criterion, which takes human perception and limitations of display devices into account by incorporating the tone-operator. Our results indicate that this can lead to a significant reduction in the overall RMS-error, and even more important that noisy spots are eliminated. This leads to a very homogeneous image quality. As most adaptive sampling techniques our method is biased. In order to investigate the importance of this problem, a nonparametric bootstrap method is presented to estimate the actual bias. This provides a technique for bias correction and it shows that the bias is most significant in areas with indirect illumination.", who = "Havran Vlastimil: REN-0197", } @InProceedings{Markosian:1997:RTN, author = "Lee Markosian and Michael A. Kowalski and Samuel J. Trychin and Lubomir D. Bourdev and Daniel Goldstein and John F. Hughes", title = "Real-Time Nonphotorealistic Rendering", booktitle = "SIGGRAPH 97 Conference Proceedings", editor = "Turner Whitted", series = "Annual Conference Series", year = "1997", organization = "ACM SIGGRAPH", publisher = "Addison Wesley", month = Aug, pages = "415--420", note = "ISBN 0-89791-896-7", keywords = "non-photorealistic rendering", annote = "Nonphotorealistic rendering (NPR) can help make comprehensible but simple pictures of complicated objects by employing an economy of line. But current nonphotorealistic rendering is primarily a batch process. This paper presents a real-time nonphotorealistic renderer that deliberately trades accuracy and detail for speed. Our renderer uses a method for determining visible lines and surfaces which is a modification of Appel's hidden-line algorithm, with improvements which are based on the topology of singular maps of a surface into the plane. The method we describe for determining visibility has the potential to be used in any NPR system that requires a description of visible lines or surfaces in the scene. The major contribution of this paper is thus to describe a tool which can significantly improve the performance of these systems. We demonstrate the system with several nonphotorealistic rendering styles, all of which operate on complex models at interactive frame rates.", who = "Havran Vlastimil: REN-0198", } @Article{Shao:1988:NRA, author = "Min-Zhi Shao and Qun-Sheng Peng and You-Dong Liang", title = "A New Radiosity Approach by Procedural Refinements for Realistic Image Synthesis", journal = "Computer Graphics", volume = "22", number = "4", pages = "93--101", month = Aug, year = "1988", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 18:47:30 MDT 1999", url = "http://www.acm.org:80/pubs/citations/proceedings/graph/54852/p93-shao/", acknowledgement = ack-nhfb, conference = "held in Atlanta, Georgia; 1--5 August 1988", keywords = "algorithms; design; distributed ray tracing, form-factors, global illumination, hemi-cube, procedural iteration, progressive refinement, radiosity", subject = "{\bf I.3.5} Computing Methodologies, COMPUTER GRAPHICS, Computational Geometry and Object Modeling, Curve, surface, solid, and object representations. {\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Color, shading, shadowing, and texture. {\bf I.3.3} Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation. {\bf G.1.3} Mathematics of Computing, NUMERICAL ANALYSIS, Numerical Linear Algebra, Linear systems (direct and iterative methods).", who = "Havran Vlastimil: REN-0199", } @InCollection{Jensen95a, author = "Henrik Wann Jensen", editor = "P. M. Hanrahan and W. Purgathofer", title = "Importance Driven Path Tracing using the Photon Map", booktitle = "Rendering Techniques '95", pages = "326--335 326--335", publisher = "Springer-Verlag", address = "New York", year = "1995", keywords = "monte carlo", note = "also in Proceedings of the Sixth Eurographics Rendering Workshop, 1995 (Rendering Techniques '95, Springer Verlag)", who = "Havran Vlastimil: REN-0200", } @Article{Mitchell:1988:RFC, author = "Don P. Mitchell and Aru N. Netravali", title = "Reconstruction Filters in Computer Graphics", journal = "Computer Graphics", volume = "22", number = "4", pages = "221--228", month = Aug, year = "1988", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 18:47:30 MDT 1999", url = "http://www.acm.org:80/pubs/citations/proceedings/graph/54852/p221-mitchell/", acknowledgement = ack-nhfb, conference = "held in Atlanta, Georgia; 1--5 August 1988", keywords = "antialiasing, cubic filters, filters, derivative reconstruction, reconstruction, sampling; algorithms; design", subject = "{\bf I.3.3} Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation, Digitizing and scanning. {\bf I.4.5} Computing Methodologies, IMAGE PROCESSING AND COMPUTER VISION, Reconstruction. {\bf I.4.1} Computing Methodologies, IMAGE PROCESSING AND COMPUTER VISION, Digitization and Image Capture. {\bf I.4.3} Computing Methodologies, IMAGE PROCESSING AND COMPUTER VISION, Enhancement, Filtering.", who = "Havran Vlastimil: REN-0201", } @INPROCEEDINGS{Bekaert95-IPRR, author = {Philippe Bekaert and Yves D. Willems}, editor = {P. M. Hanrahan and W. Purgathofer}, year = 1995, title = {Importance-{Driven} {Progressive} {Refinement} {Radiosity}}, booktitle = {Rendering Techniques '95 (Proceedings of the Sixth Eurographics Workshop on Rendering)}, pages = {316--325}, publisher = {Springer-Verlag}, address = {New York, NY}, comments = {ISBN 3-211-82733-1}, who = "Havran Vlastimil: REN-0202", } @InProceedings{rushmeier87a, author = "Holly E. Rushmeier and Kenneth E. Torrance", title = "The Zonal Method for Calculating Light Intensities in the Presence of a Participating Medium", pages = "293--302", journal = "Computer Graphics (SIGGRAPH '87 Proceedings)", volume = "21", number = "4", year = "1987", month = Jul, editor = "Maureen C. Stone", conference = "held in Anaheim, California; 27 -- 31 July 1987", keywords = "clouds, light scattering, participating media, radiative transport, radiosity, zonal method, haze", who = "Havran Vlastimil: REN-0203", } @InProceedings{nishita87a, author = "Tomoyuki Nishita and Yasuhiro Miyawaki and Eihachiro Nakamae", title = "A Shading Model for Atmospheric Scattering Considering Luminous Intensity Distribution of Light Sources", pages = "303--310", journal = "Computer Graphics (SIGGRAPH '87 Proceedings)", volume = "21", number = "4", year = "1987", month = Jul, editor = "Maureen C. Stone", conference = "held in Anaheim, California; 27 -- 31 July 1987", keywords = "shading, atmospheric scattering, luminous intensity characteristic, shadow volumes, haze", who = "Havran Vlastimil: REN-0204", } @Article{Upson:1988:VVV, author = "Craig Upson and Michael Keeler", title = "{V-BUFFER}: Visible Volume Rendering", journal = "Computer Graphics", volume = "22", number = "4", pages = "59--64", month = Aug, year = "1988", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 18:47:30 MDT 1999", url = "http://www.acm.org:80/pubs/citations/proceedings/graph/54852/p59-upson/", acknowledgement = ack-nhfb, conference = "held in Atlanta, Georgia; 1--5 August 1988", keywords = "volume rendering, voxel, isosurface, natural phenomena, ray tracing; algorithms; design", subject = "{\bf I.3.3} Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation, Viewing algorithms. {\bf I.3.5} Computing Methodologies, COMPUTER GRAPHICS, Computational Geometry and Object Modeling, Curve, surface, solid, and object representations. {\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Color, shading, shadowing, and texture.", who = "Havran Vlastimil: REN-0205", } @Article{Ward:1988:RTS, author = "Gregory J. Ward and Francis M. Rubinstein and Robert D. Clear", title = "A Ray Tracing Solution for Diffuse Interreflection", journal = "Computer Graphics", volume = "22", number = "4", pages = "85--92", month = Aug, year = "1988", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 18:47:30 MDT 1999", url = "http://www.acm.org:80/pubs/citations/proceedings/graph/54852/p85-ward/", acknowledgement = ack-nhfb, annote = "An efficient ray tracing method is present for calculating interreflections between surfaces with both diffuse and specular components. A Monte Carlo technique computes the indirect contributions to illuminance at locations chosen by the rendering process. The indirect illuminance values are averaged over surfaces and used in place of a constant ``ambient'' term. Illuminance calculations are made only for those areas participating in the selected view, and the results are stored so that subsequent views can reuse common values. The density of the calculation is adjusted to maintain a constant accuracy, permitting less populated portions of the scene to be computed quickly. Successive reflections use proportionally fewer samples, which speeds the process and provides a natural limit to recursion. The technique can also diffuse transmission and illumination from large area sources, such as the sky.", conference = "held in Atlanta, Georgia; 1--5 August 1988", keywords = "caching, diffuse, illuminance, interreflection, luminance, Monte Carlo technique, radiosity, ray tracing, rendering, specular; algorithms; design", subject = "{\bf I.3.5} Computing Methodologies, COMPUTER GRAPHICS, Computational Geometry and Object Modeling, Curve, surface, solid, and object representations. {\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Color, shading, shadowing, and texture. {\bf I.3.5} Computing Methodologies, COMPUTER GRAPHICS, Computational Geometry and Object Modeling, Geometric algorithms, languages, and systems.", who = "Havran Vlastimil: REN-0206", } @InProceedings{EVL-1997-124, title = "Visualization of Height Field Data with Physical Models and Texture Photomapping", author = "Dru Clark and Michael J. Bailey", url = "http://visinfo.zib.de/EVlib/Show?EVL-1997-124", language = "en", abstract = "This paper discusses a unique way to visualize height field dataD the use of solid fabricated parts with a photomapped texture to display scalar information. In this process, the data in a height field are turned into a 3D solid representation through solid freeform fabrication techniques, in our case Laminated Object Manufacturing. Next, that object is used as a 3D {"}photographic plate{"} to allow a texture image representing scalar data to be permanently mapped onto it. This paper discusses this process and how it can be used in different visualization situations.", month = oct, keywords = "Computer graphics, object modeling, scientific visualization", booktitle = "IEEE Visualization '97", editor = "Roni Yagel and Hans Hagen", year = "1997", organization = "IEEE", pages = "89--94", who = "Havran Vlastimil: REN-0207", } @Article{Ramasubramanian:1999:PBP, author = "Mahesh Ramasubramanian and Sumanta N. Pattanaik and Donald P. Greenberg", title = "A perceptually based physical error metric for realistic image synthesis", journal = "Computer Graphics", volume = "33", number = "{Annual Conference Series}", pages = "73--82", year = "1999", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 10:28:38 MDT 1999", url = "http://www.acm.org/pubs/citations/proceedings/graph/311535/p73-ramasubramanian/", acknowledgement = ack-nhfb, subject = "{\bf I.3.3} Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation. {\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism.", who = "Havran Vlastimil: REN-0208", } @Article{Tumblin:1999:LBH, author = "Jack Tumblin and Greg Turk", title = "{LCIS}: a boundary hierarchy for detail-preserving contrast reduction", journal = "Computer Graphics", volume = "33", number = "{Annual Conference Series}", pages = "83--90", year = "1999", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 10:28:38 MDT 1999", url = "http://www.acm.org/pubs/citations/proceedings/graph/311535/p83-tumblin/", acknowledgement = ack-nhfb, subject = "{\bf I.3.3} Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation, Display algorithms. {\bf I.4.1} Computing Methodologies, IMAGE PROCESSING AND COMPUTER VISION, Digitization and Image Capture.", who = "Havran Vlastimil: REN-0209", } @Article{Preetham:1999:PAM, author = "A. J. Preetham and Peter Shirley and Brian Smits", title = "A practical analytic model for daylight", journal = "Computer Graphics", volume = "33", number = "{Annual Conference Series}", pages = "91--100", year = "1999", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 10:28:38 MDT 1999", url = "http://www.acm.org/pubs/citations/proceedings/graph/311535/p91-preetham/", acknowledgement = ack-nhfb, subject = "{\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Color, shading, shadowing, and texture.", who = "Havran Vlastimil: REN-0210", } @Article{Stam:1999:DS, author = "Jos Stam", title = "Diffraction shaders", journal = "Computer Graphics", volume = "33", number = "{Annual Conference Series}", pages = "101--110", year = "1999", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 10:28:38 MDT 1999", url = "http://www.acm.org/pubs/citations/proceedings/graph/311535/p101-stam/", acknowledgement = ack-nhfb, subject = "{\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Color, shading, shadowing, and texture. {\bf J.2} Computer Applications, PHYSICAL SCIENCES AND ENGINEERING, Physics.", who = "Havran Vlastimil: REN-0211", } @Article{Stark:1999:CES, author = "Michael M. Stark and Elaine Cohen and Tom Lyche and Richard F. Riesenfeld", title = "Computing exact shadow irradiance using splines", journal = "Computer Graphics", volume = "33", number = "{Annual Conference Series}", pages = "155--164", year = "1999", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 10:28:38 MDT 1999", url = "http://www.acm.org/pubs/citations/proceedings/graph/311535/p155-stark/", acknowledgement = ack-nhfb, subject = "{\bf I.3.0} Computing Methodologies, COMPUTER GRAPHICS, General. {\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism.", who = "Havran Vlastimil: REN-0212", } @Article{Hart:1999:DIL, author = "David Hart and Philip Dutr{\'e} and Donald P. Greenberg", title = "Direct illumination with lazy visibility evaluation", journal = "Computer Graphics", volume = "33", number = "{Annual Conference Series}", pages = "147--154", year = "1999", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 10:28:38 MDT 1999", url = "http://www.acm.org/pubs/citations/proceedings/graph/311535/p147-hart/", acknowledgement = ack-nhfb, subject = "{\bf I.3.3} Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation. {\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Color, shading, shadowing, and texture.", who = "Havran Vlastimil: REN-0213", } @InProceedings{Samanta:1999:LBM, author = "Rudrajit Samanta and Jiannan Zheng and Thomas Funkhouser and Kai Li and Jaswinder Pal Singh", title = "Load balancing for multi-projector rendering systems", editor = "{ACM}", booktitle = "{SIGGRAPH} '99. Proceedings 1999 Eurographics/{SIGGRAPH} workshop on Graphics hardware, Aug. 8--9, 1999, Los Angeles, {CA}", publisher = "ACM Press", address = "New York, NY 10036, USA", ISBN = "????", series = "Computer Graphics", pages = "107--116", year = "1999", bibdate = "Mon Oct 4 10:28:36 MDT 1999", url = "http://www.acm.org/pubs/citations/proceedings/graph/311534/p107-samanta/", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0214", } @Article{Heidrich:1999:RHS, author = "Wolfgang Heidrich and Hans-Peter Seidel", title = "Realistic, hardware-accelerated shading and lighting", journal = "Computer Graphics", volume = "33", number = "{Annual Conference Series}", pages = "171--178", year = "1999", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 10:28:38 MDT 1999", url = "http://www.acm.org/pubs/citations/proceedings/graph/311535/p171-heidrich/", acknowledgement = ack-nhfb, subject = "{\bf I.3.1} Computing Methodologies, COMPUTER GRAPHICS, Hardware Architecture, Graphics processors. {\bf I.3.3} Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation, Bitmap and framebuffer operations. {\bf I.3.6} Computing Methodologies, COMPUTER GRAPHICS, Methodology and Techniques, Standards. {\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Color, shading, shadowing, and texture.", who = "Havran Vlastimil: REN-0215", } @InProceedings{EVL-1999-153, title = "A Practical Analysis of Clustering strategies for Hierarchical Radiosity", address = "Computer Graphics Forum, c/o Mercury Airfreight International Ltd Inc, 365 Blair Road, Avenel, MI 48106, USA", editor = "Hans-Peter Seidel and Sabine Coquillart", booktitle = "Eurographics '99 - Computer Graphics Forum", publisher = "Eurographics Association and Blackwell Publishers Ltd 1999", pages = "C221--C232", year = "1999", author = "Jean-Marc Hasenfratz and Cyrille Damez and Froncois Sillion and George Drettakis", url = "http://visinfo.zib.de/EVlib/Show?EVL-1999-153", abstract = "The calculation of radiant energy balance in complex scenes has been made possible by hierarchical radiosity methods based on clustering mechanisms. Although clustering offers an elegant theoretical solution by reducing the asymptotic complexity of the algorithm, its practical use raises many difficulties, and may result in image artifacts or unexpected behavior. This paper proposes a detailed analysis of the expectations placed on clustering and compares the relative merits of existing, as well as newly introduced, clustering algorithms. This comparison starts from the precise definition of various clustering strategies based on a taxonomy of data structures and construction algorithms, and proceeds to an experimental study of the clustering behavior for real-world scenes. Interestingly, we observe that for some scenes light is difficult to simulate even with clustering. Our results lead to a series of observations characterizing the adequacy of clustering methods for meeting such diverse goals as progessive solution improvement, efficient ray casting acceleration, and faithful representation of object density for approximate visibility calculations.", organization = "Eurographics Association", volume = "18", who = "Havran Vlastimil: REN-0216", } @InProceedings{Mueller99-RCAER*, author = "Gordon Mueller and Stephan Schaefer and Dieter Fellner", month = sep, year = "1999", title = "A Rapid Clustering Algorithm for Efficient Rendering", booktitle = "Computer Graphics Forum (Proc. Eurographics '99)", note = "To appear", who = "Havran Vlastimil: REN-0217", } @TechReport{Szirmay-Kalos98-AQMCI, author = "Laszlo Szirmay-Kalos and Werner Purgathofer", year = "1998", title = "Analysis of the Quasi-Monte Carlo Integration of the Rendering Equation", number = "TR-186-2-98-22", note = "Available from http://www.fsz.bme.hu/~szirmay/puba.html", address = "Vienna, Austria", institution = "Vienna Institute of Technology", who = "Havran Vlastimil: REN-0218", } @TechReport{Szirmay-Kalos98-SINDG, author = "Laszlo Szirmay-Kalos", year = "1998", title = "Stochastic Iteration for Non-Diffuse Global Illumination", number = "TR-186-2-98-21", note = "Available from http://www.fsz.bme.hu/~szirmay/puba.html", address = "Vienna, Austria", institution = "Vienna University of Technology", who = "Havran Vlastimil: REN-0219", } @TechReport{Lindstrom95, author = "Peter Lindstrom and David Koller and Larry F. Hodges and William Ribarsky and Nick Faust and Gregory Turner", title = "Level-of-detail Management for Real-Time Rendering of Phototextured Terrain", institution = "Graphics, Visualization, and Usability Center, Georgia Tech", year = "1995", keywords = "texture mapping, geographic information systems", note = "TR 95-06, URL{http://www.cc.gatech.edu/gvu/reports/TechReports95.html}", abstract = "We present four techniques for real-time level-of-detail reduction of digital terrain data without loss of visual image quality or detail. Techniques for reducing polygon count based on distance and terrain roughness provided two- orders-of-magnitude reduction in the number of polygons rendered for our sample data: an eight kilometer by eight kilometer data set with four meter resolution. Techniques for reducing texture data based on distance and orientation of polygons resulted in a one-order-of-magnitude reduction in the number of bytes of texture memory for the same data set.", who = "Havran Vlastimil: REN-0220", } @InProceedings{LaloFour-gi99, title = "Interactive Rendering of Wavelet Projected Light Fields", author = "Paul Lalonde and Alain Fournier", booktitle = "Graphics Interface", year = "1999", month = jun, pages = "170--114", url = "http://www.dgp.toronto.edu/gi99/papers/129", who = "Havran Vlastimil: REN-0221", } @InProceedings{Evans:1999:SWC-gi99, title = "Stratified Wavelength Clusters for Efficient Spectral Monte Carlo Rendering", author = "Glenn F. Evans and Michael D. McCool", booktitle = "Graphics Interface", year = "1999", month = jun, pages = "42--49", url = "http://www.dgp.toronto.edu/gi99/papers/136", who = "Havran Vlastimil: REN-0222", } @InProceedings{StammingerEtAl-gi99, title = "Efficient Glossy Global Illumination with Interactive Viewing", author = "Marc Stamminger and Annette Scheel and Xavier Granier and Frederic Perez-Cazorla and George Drettakis and Fran\c{c}ois X. Sillion", booktitle = "Graphics Interface", year = "1999", month = jun, pages = "50--57", url = "http://www.dgp.toronto.edu/gi99/papers/145", who = "Havran Vlastimil: REN-0223", } @InProceedings{GranierDrettakis-gi99, title = "Controlling Memory Consumption of Hierarchical Radiosity with Clustering", author = "Xavier Granier and George Drettakis", booktitle = "Graphics Interface", year = "1999", month = jun, pages = "58--65", url = "http://www.dgp.toronto.edu/gi99/papers/146", who = "Havran Vlastimil: REN-0224", } @InProceedings{OuelletteFiume-gi99, title = "Approximating the Location of Integrand Discontinuities for Penumbral Illumination with Linear Light Sourcesnuities for Penumbral Illumination with Linear Light Sources", author = "Marc J. Ouellette and Eugene Fiume", booktitle = "Graphics Interface", year = "1999", month = jun, pages = "66--75", url = "http://www.dgp.toronto.edu/gi99/papers/154", who = "Havran Vlastimil: REN-0225", } @InProceedings{1998-reinhard, title = "Overview of Parallel Photo-realistic Graphics", author = "Erik Reinhard and Alan Chalmers and Frederik W. Jansen", booktitle = "Eurographics '98 State of the Art Reports", ISSN = "1017-4656", publisher = "Eurographics Association", pages = "1--25", month = Aug, year = "1998", keywords = "Graphics,Parallel_Processing", abstract = "Global illumination is an area of research which tries to develop algorithms and methods to render images of artificial models or worlds as realistically as possible. Such algorithms are known for their unpredictable data accesses and their high computational complexity. Rendering a single high quality image may take several hours, or even days. For this reason parallel processing must be considered as a viable option to compute images in a reasonable time. The nature of data access patterns and often the sheer size of the scene to be rendered, means that a straightforward parallelisation, if one exists, may not always lead to good performance. This holds for all three rendering techniques considered in this report: ray tracing, radiosity and particle tracing.", source = "tech-reports/1998/1998-reinhard.pdf", pubtype = "4", who = "Havran Vlastimil: REN-0226", } @InProceedings{Mueller99-ACOHR*, author = "Gordon Mueller and Stephan Schaefer and Dieter Fellner", month = oct, year = "1999", title = "Automatic Creation of Object Hierarchies for Radiosity Clustering", booktitle = "Proceedings of Pacific Graphics '99 (Seventh Pacific Conference on Computer Graphics and Applications)", publisher = "IEEE Computer Society Press", address = "Los Alamitos, CA", who = "Havran Vlastimil: REN-0227", } @Article{Dischler99-RICSG*, author = "J.-M. Dischler and L. Mostefaoui and D. Ghazanfapour", year = "1999", title = "Radiosity Including Complex Surfaces and Geometric Textures Using Solid Irradiance and Virtual Surfaces", journal = "Computers \& Graphics", volume = "23", number = "6", pages = "507--524", who = "Havran Vlastimil: REN-0228", } @InProceedings{Schoeffel99-RMRIR, author = "F. Schoeffel and A. Pomi", year = "1999", title = "Reducing Memory Requirements for Interactive Radiosity Using Movement Prediction", booktitle = "Rendering Techniques '99", pages = "225--234", publisher = "Springer Wien", address = "New York, NY", who = "Havran Vlastimil: REN-0229", } @InProceedings{EVL-1999-125, pages = "45--56", year = "1999", title = "Decoupling Polygon Rendering from Geometry using Rasterization Hardware", author = "Ruediger Westermann and Ove Sommer and Thomas Ertl", url = "http://visinfo.zib.de/EVlib/Show?EVL-1999-125", organization = "Eurographics", note = "ISBN 3-211-83382-X", editor = "D. Lischinski and G. W. Larson", booktitle = "Rendering Techniques '99", publisher = "Springer-Verlag, Wien, New York", who = "Havran Vlastimil: REN-0230", } @InProceedings{Udeshi99-TIPRI, author = "Tushar Udeshi and Charles D. Hansen", editor = "D. Lischinski and G. W. Larson", year = "1999", title = "Towards Interactive Photorealistic Rendering of Indoor Scenes: {A} Hybrid Approach", booktitle = "Rendering Techniques '99", pages = "63--76", publisher = "Springer Wien", address = "New York, NY", who = "Havran Vlastimil: REN-0231", } @InProceedings{Feixas99-ITTSC, author = "M. Feixas and E. Del Acebo and P. Bekaert and M. Sbert", year = "1999", title = "Information Theory Tools for Scene Discretization", booktitle = "Rendering Techniques '99", pages = "95--106", publisher = "Springer Wien", address = "New York, NY", who = "Havran Vlastimil: REN-0232", } @TechReport{UNCCH_CS//TR99-019, year = "1999", type = "Technical Report", number = "TR99-019", institution = "University of North Carolina, Chapel Hill", title = "Real-Time Rendering of Real World Environments", bibdate = "April 12, 1999", url = "ftp://ftp.cs.unc.edu/pub/publications/techreports/99-019.pdf.Z", author = "David McAllister and Lars Nyland and Voici Popescu and Anselmo Lastra and Chris McCue", month = apr # " 6,", who = "Havran Vlastimil: REN-0233", } @InProceedings{visu96*319, author = "Francine Evans and Steven S. Skiena and Amitabh Varshney", title = "Optimizing Triangle Strips for Fast Rendering", pages = "319--326", ISBN = "0-7803-3673-9", editor = "Roni Yagel and Gregory M. Nielson", booktitle = "Proceedings of the Conference on Visualization", month = oct # "~27--" # nov # "~1", publisher = "IEEE", address = "Los Alamitos", year = "1996", who = "Havran Vlastimil: REN-0234", } @InProceedings{Schilling:1997:TRT, author = "Andreas Schilling", title = "Toward Real-Time Photorealistic Rendering: Challenges and Solutions", booktitle = "1997 SIGGRAPH / Eurographics Workshop on Graphics Hardware", editor = "Steven Molnar and Bengt-Olaf Schneider", year = "1997", organization = "ACM SIGGRAPH / Eurographics", publisher = "ACM Press", address = "New York City, NY", month = Aug, pages = "7--16", note = "ISBN 0-89791-961-0", keywords = "antialiasing, bump mapping, environment mapping, anisotropic filtering", annote = "A growing number of real-time applications need graphics with photorealistic quality, especially in the field of training (virtual operation, driving and flight simulation), but also in the areas of design or ergonomic research. We take a closer look at main deficiencies of today's real time graphics hardware and present solutions for several of the identified problems in the areas of antialiasing and texture-, bump- and reflection mapping. In the second part of the paper, a new method for antialiasing bump maps is explained in more detail.", who = "Havran Vlastimil: REN-0235", } @InProceedings{EUROGRAPHICS98*55, author = "Michael E. Goss and Kei Yuasa", title = "Texture Tile Visibility Determination For Dynamic Texture Loading (color plate p. 155)", pages = "55--60", ISBN = "1-58113-097-X", editor = "Stephen N. Spencer", booktitle = "Proceedings of the Eurographics / Siggraph Workshop on Graphics Hardware ({EUROGRAPHICS}-98)", month = Aug # "~31--" # Sep # "~1", publisher = "ACM Press", address = "New York", year = "1998", who = "Havran Vlastimil: REN-0236", } @Article{Kolb:1995:RCM, author = "Craig Kolb and Don Mitchell and Pat Hanrahan", title = "A Realistic Camera Model for Computer Graphics", journal = "Computer Graphics", volume = "29", number = "{Annual Conference Series}", pages = "317--324", month = nov, year = "1995", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 18:52:53 MDT 1999", url = "http://www.acm.org:80/pubs/citations/proceedings/graph/218380/p317-kolb/", acknowledgement = ack-nhfb, keywords = "design; measurement; performance; theory; ACM; computer graphics; interactive techniques; SIGGRAPH", subject = "{\bf I.3.3} Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation. {\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Raytracing. {\bf I.2.10} Computing Methodologies, ARTIFICIAL INTELLIGENCE, Vision and Scene Understanding, Modeling and recovery of physical attributes. {\bf I.3.5} Computing Methodologies, COMPUTER GRAPHICS, Computational Geometry and Object Modeling, Physically based modeling.", who = "Havran Vlastimil: REN-0237", } @Article{Meyer86-EECGI, author = "Gary W. Meyer and Holly E. Rushmeier and Michael F. Cohen and Donald P. Greenberg and Kenneth E. Torrance", month = jan, year = "1986", title = "An {Experimental} {Evaluation} of {Computer} {Graphics} {Imagery}", journal = "ACM Transactions on Graphics", volume = "5", number = "1", pages = "30--50", comments = "side-by-side test of reality vs. a radiosity image", who = "Havran Vlastimil: REN-0238", } @Article{hall86a, author = "R. Hall", title = "A characterization of illumination models and shading techniques", pages = "268--277", journal = "The Visual Computer", volume = "2", number = "5", year = "1986", month = sep, keywords = "shading survey", who = "Havran Vlastimil: REN-0239", } @Article{Baum86-BBAER, author = "Daniel R. Baum and John R. Wallace and Michael F. Cohen and Donald P. Greenberg", month = sep, year = "1986", title = "The {Back}-{Buffer} {Algorithm}: {An} {Extension} of the {Radiosity} {Method} to {Dynamic} {Environments}", journal = "The Visual Computer", volume = "2", number = "5", pages = "298--306", keywords = "animation", who = "Havran Vlastimil: REN-0240", } @InProceedings{Bartz98, author = {Dirk Bartz and Michael Meissner and Tobias H\"uttner}, title = {Extending Graphics Hardware for Occlusion Queries in OpenGL}, booktitle = {Proceedings of the 1998 Workshop on Graphics Hardware, Lisbon, Portugal}, pages = {97--104}, year = {1998}, who = "Havran Vlastimil: REN-0241", } @Article{Pueyo91-DITFC, author = "Xavier Pueyo", month = Jul, year = "1991", title = "Diffuse {Interreflections}. {Techniques} for {Form}-{Factor} {Computation}: {A} {Survey}", journal = "The Visual Computer", volume = "7", number = "4", pages = "200--209", who = "Havran Vlastimil: REN-0242", } @Article{Hall:1993:IER, author = "David E. Hall and Holly E. Rushmeier", title = "Improved explicit radiosity method for calculating non- Lambertian reflections", pages = "278--288", journal = "The Visual Computer", volume = "9", number = "5", month = mar, year = "1993", keywords = "global illumination, general reflectance functions", who = "Havran Vlastimil: REN-0243", } @Article{Tellier93-ESCAR, author = "Pierre Tellier and E. Maisel and Kadi Bouatouch and Eric Langueonou", year = "1993", title = "Exploiting {Spatial} {Coherence} to {Accelerate} {Radiosity}", journal = "The Visual Computer", volume = "10", number = "1", pages = "46--53", who = "Havran Vlastimil: REN-0244", } @Article{Sbert:1996:GMM, author = "Mateu Sbert and Xavier Pueyo and Lazlo Neumann and Werner Purgathofer", title = "Global multipath Monte Carlo algorithms for radiosity", journal = "The Visual Computer", year = "1996", volume = "12", number = "2", pages = "47--61", note = "ISSN 0178-2789", publisher = "Springer-Verlag", annote = "We present a new algorithm for radiosity, which is linear both in time and storage with the number of patches in a given scene; that is, the number of patches is increased by dividing each existing patch into smaller patches. The new algorithm is based on Integral Geometry and on the well-known algorithms for Monte Carlo particle transport. It considers the scene embedded in a field of lines, each representing the exchange between the pairs of points that result from the intersections of the line with the scene. For a given pair of points, this exchange is bidirectional. Lines are taken randomly. Both graphical and numerical results are given for the proposed algorithm, which is compared with a local Monte Carlo particle transport algorithm.", who = "Havran Vlastimil: REN-0245", } @Article{Cook:1986:SSC, author = "Robert L. Cook", title = "Stochastic Sampling in Computer Graphics", journal = "ACM Transactions on Graphics", volume = "5", number = "1", pages = "51--72", month = jan, year = "1986", coden = "ATGRDF", ISSN = "0730-0301", bibdate = "Thu Aug 25 23:39:28 1994", note = "See remarks \cite{Pavlidis:1990:RCS,Wold:1990:RCS}. Also in Tutorial: Computer Graphics: Image Synthesis, Computer Society Press, Washington, 1988, pp. 283--304.", url = "http://www.acm.org/pubs/toc/Abstracts/0730-0301/8927.html", acknowledgement = ack-nhfb, keywords = "algorithms; antialiasing; depth of field; filtering; image synthesis; Monte Carlo integration; motion blur; raster graphics; ray tracing; stochastic sampling", review = "ACM CR 8709-0784", subject = "{\bf I.3.3}: Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation, Viewing algorithms. {\bf G.3}: Mathematics of Computing, PROBABILITY AND STATISTICS, Probabilistic algorithms (including Monte Carlo).", who = "Havran Vlastimil: REN-0246", } @Article{Neumann98-CRT, author = "L. Neumann and A. Neumann and J. Prikryl and W. Purgathofer", year = "1998", title = "The Constant Radiance Term", journal = "Machine Graphics \& Vision", volume = "7", number = "3", pages = "535--549", who = "Havran Vlastimil: REN-0247", } @Article{Rushmeier:1990:ERM, author = "Holly E. Rushmeier and Kenneth E. Torrance", title = "Extending the Radiosity Method to Include Specularly Reflecting and Translucent Materials", journal = "ACM Transactions on Graphics", pages = "1--27", volume = "9", number = "1", month = jan, year = "1990", keywords = "backward form factor, forward form factor, global illumination, image synthesis, radiosity, ray tracing", annote = "An extension to the radiosity method is presented that rigorously accounts for the presence of a small number of specularly reflecting surfaces in an otherwise diffuse scene, and for the presence of a small number of specular or ideal diffuse transmitter. The relationship between the extended method and earlier radiosity and ray-tracing methods is outlined. It is shown that all three methods are based on the same general equation of radiative transfer. A simple superposition of the earlier radiosity and ray-tracing methods in order to account for specular behavior is shown to be physically inconsistent, as the methods are based on different assumptions. Specular behavior is correctly included in the present method. The extended radiosity method and example images are presented.", who = "Havran Vlastimil: REN-0248", } @Article{Pavlidis:1990:RCS, author = "Theo Pavlidis", title = "Re: Comments on ``{Stochastic Sampling in Computer Graphics}''", journal = "ACM Transactions on Graphics", volume = "9", number = "2", pages = "233--236", month = apr, year = "1990", coden = "ATGRDF", ISSN = "0730-0301", bibdate = "Fri Jan 5 07:58:42 MST 1996", note = "See \cite{Cook:1986:SSC,Wold:1990:RCS}.", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0249", } @Article{Wold:1990:RCS, author = "Erling Wold and Kim Pepard", title = "Letter to the Editor", journal = "ACM Transactions on Graphics", pages = "237--242", volume = "9", number = "2", month = apr, year = "1990", annote = "Special issue on Computer-Aided design --- Part III Comments on ``Stochastic Sampling in Computer Graphics'' by Robert L. Cook in ACM TOG v.5 n.1 January 1986, pp. 51-72", who = "Havran Vlastimil: REN-0250", } @Article{Fournier:1988:PFB, author = "Alain Fournier and Donald Fussell", title = "On the Power of the Frame Buffer", journal = "ACM Transactions on Graphics", volume = "7", number = "2", pages = "103--128", month = apr, year = "1988", coden = "ATGRDF", ISSN = "0730-0301", bibdate = "Sat Aug 13 17:25:58 MDT 1994", url = "http://www.acm.org/pubs/toc/Abstracts/0730-0301/42460.html", acknowledgement = ack-nhfb, keywords = "algorithms; complexity; shadow; visibility", review = "ACM CR 8902-0088", subject = "{\bf I.3.1}: Computing Methodologies, COMPUTER GRAPHICS, Hardware architecture, Raster display devices. {\bf I.3.3}: Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation, Display algorithms. {\bf I.3.5}: Computing Methodologies, COMPUTER GRAPHICS, Computational Geometry and Object Modeling. {\bf I.3.7}: Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Color, shading, shadowing, and texture. {\bf I.3.7}: Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Visible line/surface algorithms.", who = "Havran Vlastimil: REN-0251", } @Article{Pattanaik:1995:AER, author = "S. N. Pattanaik and S. P. Mudur", title = "Adjoint Equations and Random Walks for Illumination Computation", journal = "ACM Transactions on Graphics", year = "1995", volume = "14", number = "1", pages = "77--102", month = jan, note = "ISSN 0730-0301", annote = "In this paper we introduce the potential equation that along with the rendering equation forms an adjoint system of equations and provides a mathematical frame work for all known approaches to illumination computation based on geometric optics. The potential equation is more natural for illumination computations that simulate light propagation starting from the light sources, such as progressive radiosity and particle tracing. Using the mathematical handles provided by this framework and the random-walk solution model, we present a number of importance sampling schemes for improving the computation of flux estimation. Of particular significance is the use of approximately computed potential for directing a majority of the random walks through regions of importance in the environment, thus reducing the variance in the estimates of luminous flux in these regions. Finally, results from a simple implementation are presented to demonstrate the high-efficiency improvements made possible by the use of these techniques.", who = "Havran Vlastimil: REN-0252", } @Article{cohen88a, author = "Michael F. Cohen and Shenchang Eric Chen and John R. Wallace and Donald P. Greenberg", title = "A Progressive Refinement Approach to Fast Radiosity Image Generation", pages = "75--84", journal = "Computer Graphics (SIGGRAPH '88 Proceedings)", volume = "22", number = "4", year = "1988", month = Aug, editor = "John Dill", conference = "held in Atlanta, Georgia; 1-5 August 1988", keywords = "radiosity, progressive refinement, backward ray tracing, z-buffer, global illumination, adaptive subdivision", who = "Havran Vlastimil: REN-0254", } @InProceedings{Dutre94-IMCLT, author = "Philip Dutre and Yves D. Willems", month = jun, year = "1994", title = "Importance-{Driven} {Monte} {Carlo} {Light} {Tracing}", booktitle = "Fifth Eurographics Workshop on Rendering", pages = "185--194", address = "Darmstadt, Germany", keywords = "global illumination, importance, ray tracing, particle model, potential equation", who = "Havran Vlastimil: REN-0255", } @InProceedings{Blasi94-IDMCS, author = "Philippe Blasi and Bertrand Le Saec and Christophe Schlick", month = jun, year = "1994", title = "An {Importance} {Driven} {Monte}-{Carlo} {Solution} to the {Global} {Illumination} {Problem}", booktitle = "Fifth Eurographics Workshop on Rendering", pages = "173--183", address = "Darmstadt, Germany", keywords = "global illumination, Monte Carlo, importance sampling, participating media, ray tracing", who = "Havran Vlastimil: REN-0256", } @InProceedings{Lafortune94-ATVRT, author = "Eric P. Lafortune and Yves D. Willems", month = jun, year = "1994", title = "The {Ambient} {Term} as a {Variance} {Reducing} {Technique} for {Monte} {Carlo} {Ray} {Tracing}", booktitle = "Fifth Eurographics Workshop on Rendering", pages = "163--171", address = "Darmstadt, Germany", keywords = "Monte Carlo, variance reduction, ambient term, ray tracing", who = "Havran Vlastimil: REN-0257", } @InProceedings{Beyer94-RERTA, author = "Markus Beyer and Brigitta Lange", month = jun, year = "1994", title = "Rayvolution: {An} {Evolutionary} {Ray} {Tracing} {Algorithm}", booktitle = "Fifth Eurographics Workshop on Rendering", pages = "137--146", address = "Darmstadt, Germany", keywords = "photorealism, ray tracing, genetic algorithms, Monte Carlo, rendering equation, variance reduction", who = "Havran Vlastimil: REN-0258", } @TechReport{Collins94a, author = "S. Collins", title = "Adaptive Splatting for Specular to Diffuse Light Transport (also in Proceedings of the 5th EuroGraphics Workshop on Rendering, 1994).", institution = "Department of Computer Science, University of Dublin, Trinity College", number = "TCD-CS-94-22", month = "31 " # dec, year = "1994", url = "ftp://ftp.cs.tcd.ie/pub/tcd/tech-reports/reports.94/TCD-CS-94-22.ps.gz", note = "Fri, 18 Apr 1997 12:38:03 GMT", who = "Havran Vlastimil: REN-0259", } @InProceedings{Languenou:1994:GIP, author = "Eric Languenou and Kadi Bouatouch and Michelle Chelle", booktitle = "Fifth Eurographics Workshop on Rendering", title = "Global Illumination in Presence of Participating Media with General Properties", address = "Darmstadt, Germany", pages = "69--85", month = jun, year = "1994", keywords = "participating media, global illumination, progressive radiosity, radiance, voxels", who = "Havran Vlastimil: REN-0260", } @InProceedings{Song92-ILSIM, author = "Qin Song and Gong Jie and Li Shuliang and Wu Youshou", month = may, year = "1992", title = "Implicit {Light} {Source} {Illumination} {Model} for {Realistic} {Image} {Synthesis}", booktitle = "Third Eurographics Workshop on Rendering", pages = "288", address = "Bristol, UK", keywords = "ray tracing", comments = "abstract", who = "Havran Vlastimil: REN-0261", } @InProceedings{Languenou92-IPLSD, author = "Eric Languenou and Pierre Tellier", month = may, year = "1992", title = "Including {Physical} {Light} {Sources} and {Daylight} in {Global} {Illumination}", booktitle = "Third Eurographics Workshop on Rendering", pages = "217--225", address = "Bristol, UK", who = "Havran Vlastimil: REN-0262", } @Article{Drettakis:1991:SDS, author = "George Drettakis and Eugene Fiume", title = "Structure-Directed Sampling, Reconstruction, and Data Representation for Global Illumination", year = "1991", month = may, journal = "Second Eurographics Workshop on Rendering", pages = "189--201", address = "Barcelona, Spain", who = "Havran Vlastimil: REN-0263", } @InProceedings{cohen92c, author = "Michael Cohen", title = "Is Image Synthesis a Solved Problem?", booktitle = "Eurographics Workshop on Rendering", year = "1992", conference = "held in Bristol, UK; 17-20 May 1992", who = "Havran Vlastimil: REN-0264", } @Article{Pattanaik:1992:CGI, author = "S. N. Pattanaik and S. P. Mudur", title = "Computation of Global Illumination by Monte Carlo Simulation of the Particle Model of Light", year = "1992", month = may, journal = "Third Eurographics Workshop on Rendering", pages = "71--83", address = "Bristol, UK", keywords = "monte carlo", who = "Havran Vlastimil: REN-0265", } @Article{Feda:1992:ARO, author = "Martin Feda and Werner Purgathofer", title = "Accelerating Radiosity by Overshooting", year = "1992", month = may, journal = "Third Eurographics Workshop on Rendering", pages = "21--32", address = "Bristol, UK", keywords = "progressive refinement", who = "Havran Vlastimil: REN-0266", } @InProceedings{Glassner:1993:DS, author = "Andrew Glassner", title = "Dynamic Stratification", booktitle = "Fourth Eurographics Workshop on Rendering", year = "1993", editor = "Michael F. Cohen and Claude Puech and Francois Sillion", pages = "5--14", organization = "Eurographics", month = jun, note = "held in Paris, France, 14--16 June 1993", who = "Havran Vlastimil: REN-0267", } @InProceedings{Jones:1993:ARC, author = "G. R. Jones and C. G. Christou and B. G. Cumming and A. J. Parker", title = "Accurate Rendering of Curved Shadows and Interreflections", booktitle = "Fourth Eurographics Workshop on Rendering", year = "1993", editor = "Michael F. Cohen and Claude Puech and Francois Sillion", pages = "337--347", organization = "Eurographics", month = jun, note = "held in Paris, France, 14--16 June 1993", who = "Havran Vlastimil: REN-0268", } @InProceedings{Guitton:1993:MDT, author = "Pascal Guitton and Christophe Schlick", title = "A Methodology for Description of Texturing Methods", booktitle = "Fourth Eurographics Workshop on Rendering", year = "1993", editor = "Michael F. Cohen and Claude Puech and Francois Sillion", pages = "267--280", organization = "Eurographics", month = jun, note = "held in Paris, France, 14--16 June 1993", who = "Havran Vlastimil: REN-0269", } @InProceedings{Haeberli:1993:TMF, author = "Paul Haeberli and Mark Segal", title = "Texture Mapping As {A} Fundamental Drawing Primitive", booktitle = "Fourth Eurographics Workshop on Rendering", year = "1993", editor = "Michael F. Cohen and Claude Puech and Francois Sillion", pages = "259--266", organization = "Eurographics", month = jun, note = "held in Paris, France, 14--16 June 1993", who = "Havran Vlastimil: REN-0270", } @InProceedings{Schlick:1993:CRM, author = "Christophe Schlick", title = "A Customizable Reflectance Model for Everyday Rendering", booktitle = "Fourth Eurographics Workshop on Rendering", year = "1993", editor = "Michael F. Cohen and Claude Puech and Francois Sillion", pages = "73--84", organization = "Eurographics", month = jun, note = "held in Paris, France, 14--16 June 1993", who = "Havran Vlastimil: REN-0271", } @InProceedings{Lewis:1993:MSM, author = "Robert Lewis", title = "Making Shaders More Physically Plausible", booktitle = "Fourth Eurographics Workshop on Rendering", year = "1993", editor = "Michael F. Cohen and Claude Puech and Francois Sillion", pages = "47--62", organization = "Eurographics", month = jun, note = "held in Paris, France, 14--16 June 1993", who = "Havran Vlastimil: REN-0272", } @InProceedings{Feda:1993:PRR, author = "Martin Feda and Werner Purgathofer", title = "Progressive Ray Refinement for Monte Carlo Radiosity", booktitle = "Fourth Eurographics Workshop on Rendering", year = "1993", editor = "Michael F. Cohen and Claude Puech and Francois Sillion", pages = "15--26", organization = "Eurographics", month = jun, note = "held in Paris, France, 14--16 June 1993", who = "Havran Vlastimil: REN-0273", } @Article{Feda:1996:MCA, author = "Martin Feda", title = "A {M}onte {C}arlo approach for {G}alerkin radiosity", journal = "The Visual Computer", year = "1996", volume = "12", number = "8", pages = "390--405", note = "ISSN 0178-2789", publisher = "Springer-Verlag", annote = "Galerkin radiosity solves the integral rendering equation by projecting the illumination functions into a set of higher-order basis functions. This paper presents a Monte Carlo approach for Galerkin radiosity to compute the coefficients of the basis functions. The new approach eliminates the problems with edge singularities between adjacent surfaces present in conventional Galerkin radiosity, the time complexity is reduced from \(O(K^{4})\) to \(O(K^{2})\) for a K-order basis, and ideally specular energy transport can be simulated. As in conventional Galerkin radiosity, no meshing is required even for large or curved surfaces, thus reducing memory requirements, and no a posteriori Gouraud interpolation is necessary. The new algorithm is simple and can be parallelized on any parallel computer, including massively parallel systems.", keywords = "global illumination, radiosity, Galerkin methods, Monte Carlo methods, particle tracing", who = "Havran Vlastimil: REN-0274", } @InProceedings{Chen:1988:SIG, author = "Y. C. Chen", title = "Synthetic Image Generation for Highly Defocused Scenes", booktitle = "New Trends in Computer Graphics (Proceedings of CG International '88)", pages = "117--125", year = "1988", editor = "N. Magnenat-Thalmann and D. Thalmann", publisher = "Springer-Verlag", keywords = "lens effect, blurry image, camera model, pin-hole, aperture", annote = "Handles the defocused scenes when an object blocks parts of an image being rendered. The blockage cannot be handled simply by a hidden surface removal because of the lens effects (diffusion, concentration). The blockage factor seems to be computed for objects that would be close to be circular and perpendicular to the axis of the lens. Does not take care of the wave theory of the light.", who = "Havran Vlastimil: REN-0275", } @InCollection{Mudur93-MCMCG, author = "S. P. Mudur and Sumanta N. Pattanaik", year = "1993", title = "Monte {Carlo} {Methods} for {Computer} {Graphics}", booktitle = "State of the Art Reports EG93", pages = "3.1--3.24", publisher = "Eurographics Association", address = "Aire-la-Ville, Switzerland", who = "Havran Vlastimil: REN-0276", } @Article{Shirley:1997:LDM, author = "Peter Shirley and Kenneth Chiu", title = "A Low Distortion Map Between Disk and Square", journal = "Journal of Graphics Tools", year = "1997", volume = "2", number = "3", note = "ISSN 1086-7651", annote = "This paper presents a map between squares and disks that associates concentric squares with concentric circles. This map preserves adjacency and fractional area, and has proven useful in many sampling applications where correspondences must be maintained between the two shapes. The paper also provides code to compute the map that minimizes branching and is robust for all inputs. Finally, it extends the map to the hemisphere. Though this map has been used in publications before, details of its computation have never previously been published.", who = "Havran Vlastimil: REN-0277", } @Article{Thurmer:1998:CVN, author = "Grit Th{\"u}rmer and Charles A. W{\"u}thrich", title = "Computing Vertex Normals from Polygonal Facets", journal = "Journal of Graphics Tools: JGT", volume = "3", number = "1", pages = "43--46", month = "????", year = "1998", ISSN = "1086-7651", bibdate = "Mon Jun 07 09:26:30 1999", url = "http://www.acm.org/jgt/papers/ThurmerWuthrich98/", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0278", } @Article{Woo:1998:CTS, author = "Andrew Woo", title = "Chordlength Texturing of Spline Surfaces", journal = "Journal of Graphics Tools: JGT", volume = "3", number = "2", pages = "15--19", month = "????", year = "1998", ISSN = "1086-7651", bibdate = "Mon Jun 07 09:26:30 1999", url = "http://www.acm.org/jgt/papers/Woo98/", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0279", } @Article{Gritz:1996:BGI, author = "Larry Gritz and James K. Hahn", title = "{BMRT}: {A} Global Illumination Implementation of the RenderMan Standard", journal = "Journal of Graphics Tools", year = "1996", volume = "1", number = "3", note = "ISSN 1086-7651", annote = "The RenderMan Interface specification proposed by Pixar is a standard for communication between modeling software and rendering software or devices. This standard has proven very powerful and is extremely popular in production work. Although the standard itself claims not to specify a rendering algorithm, people have speculated RenderMan and global illumination are mutually incompatible. We have implemented a rendering system which fully adheres to the RenderMan Interface and uses global illumination algorithms. Specifically, this implementation supports progressive refinement radiosity and distribution ray tracing in a two-pass approach. This rendering system is widely distributed, very popular, and has been used in production (three properties usually not found in global illumination renderers). We discuss how we overcame problems in mating global illumination algorithms with the RenderMan standard, and make recommendations for future versions of the standard to better accommodate such algorithms. We also present a summary of important lessons we learned by creating and distributing this tool.", who = "Havran Vlastimil: REN-0280", } @Article{Haines:1997:FLM, author = "Eric Haines and Steven Worley", title = "Fast, Low Memory ${Z}$-Buffering when Performing Medium-Quality Rendering", journal = "Journal of Graphics Tools: JGT", volume = "1", number = "3", pages = "1--5", month = "????", year = "1996", ISSN = "1086-7651", bibdate = "Wed Mar 18 10:20:19 1998", url = "http://www.acm.org/jgt/papers/HainesWorley96", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0281", } @Article{Jensen:1997:RCN, author = "Henrik Wann Jensen", title = "Rendering Caustics on Non-Lambertian Surfaces", journal = "Computer Graphics Forum", year = "1997", volume = "16", number = "1", pages = "57--64", note = "ISSN 0167-7055", keywords = "caustics, photon map, filtering, Monte Carlo ray tracing, rendering", annote = "This paper presents a new technique for rendering caustics on non-Lambertian surfaces. The method is based on an extension of the photon map which removes previous restrictions limiting the usage to Lambertian surfaces. We add information about the incoming direction to the photons and this allows us to combine the photon map with arbitrary reflectance functions. By using a cone-filter we improve the quality of the radiance estimate in particular at discontinuities. Furthermore we introduce balancing of the photon map which not only reduces the memory requirements but also significantly reduces the rendering time. We have used the method to render caustics on surfaces with reflectance functions varying from Lambertian to glossy specular.", who = "Havran Vlastimil: REN-0282", } @InProceedings{Amanatides:1992:ADE, author = "John Amanatides", title = "Algorithms for the detection and elimination of specular aliasing", pages = "86--93", booktitle = "Proceedings of Graphics Interface '92", year = "1992", month = may, conference = "held in Vancouver, B.C.; 11-15 May 1992", keywords = "antialiasing, shading, highlights, image synthesis", who = "Havran Vlastimil: REN-0283", } @InProceedings{bian92a, author = "Buming Bian and Norman Wittels and Donald S. Fussell", title = "Non-uniform patch luminance for global illumination", pages = "310--318", journal = "Proceedings of Graphics Interface '92", year = "1992", month = may, conference = "held in Vancouver, B.C.; 11-15 May 1992", keywords = "radiosity, accurate image, pixel level comparison, image registration", who = "Havran Vlastimil: REN-0284", } @InProceedings{Bouatouch92-TPGLM, author = "Kadi Bouatouch and Pierre Tellier", month = may, year = "1992", title = "A {Two}-{Pass} {Physics}-{Based} {Global} {Lighting} {Model}", booktitle = "Proceedings of Graphics Interface '92", pages = "319--328", publisher = "Morgan Kaufmann", address = "San Francisco, CA", who = "Havran Vlastimil: REN-0285", } @InProceedings{Dobkin:1993:RED, author = "David P. Dobkin and Don P. Mitchell", title = "Random-Edge Discrepancy of Supersampling Patterns", year = "1993", month = may, booktitle = "Proceedings of Graphics Interface '93", publisher = "Canadian Information Processing Society", pages = "62--69", address = "Toronto, Ontario", keywords = "sampling, antialiasing", who = "Havran Vlastimil: REN-0286", } @InProceedings{Lalonde93-ADMPR, author = "Paul Lalonde", month = may, year = "1993", title = "An {Adaptive} {Discretization} {Method} for {Progressive} {Radiosity}", booktitle = "Proceedings of Graphics Interface '93", pages = "78--86", publisher = "Morgan Kaufmann", address = "San Francisco, CA", keywords = "mesh generation, progressive refinement", who = "Havran Vlastimil: REN-0287", } @InProceedings{Vedel:1993:CIA, author = "Christophe Vedel", title = "Computing illumination from area light sources by approximate contour integration", booktitle = "Proceedings of Graphics Interface '93", year = "1993", pages = "237--244", organization = "Canadian Information Processing Society", address = "Toronto, Ontario, Canada", month = may, who = "Havran Vlastimil: REN-0288", } @InProceedings{EVL-1994-96, pages = "51--58", year = "1994", title = "Stochastic Rendering of Density Fields", url = "http://visinfo.zib.de/EVlib/Show?EVL-1994-96", author = "Jos Stam", abstract = "Stochastic models are often economical to generate but problematic to render. Most previous algorithms first generate a realization of the stochastic model and then render it. These algorithms become expensive when the realization of the stochastic model is complex, because a large number of primitives have to be rendered. In stochastic rendering we also model the intensity as a random field, and the statistics of the intensity field are related to the statistics of the stochastic model through an illumination model. Stochastic rendering algorithms then generate a realization of the intensity field directly from these statistics. In other words, a random component is shifted from the modelling to the rendering. This paradigm is not entirely new in computer graphics, so related work will be discussed. The main contribution of this paper is a stochastic rendering algorithm of gaseous phenomena modelled as random density fields such as clouds, smoke and fire. A simplified version of the scattering equation is used to derive the statistics of the illumination field. Our algorithm is therefore an improvement over similar algorithms both in terms of computational speed and generality.", language = "fr", month = may, booktitle = "Proceedings of Graphics Interface '94", who = "Havran Vlastimil: REN-0289", } @InProceedings{Neyret:1995:GMM, author = "Fabrice Neyret", title = "A General and Multiscale Model for Volumetric Textures", booktitle = "Graphics Interface '95", editor = "Wayne A. Davis and Przemyslaw Prusinkiewicz", year = "1995", organization = "Canadian Information Processing Society", publisher = "Canadian Human-Computer Communications Society", month = may, pages = "83--91", note = "ISBN 0-9695338-4-5", keywords = "volumetric textures, complex geometry, rendering", who = "Havran Vlastimil: REN-0290", } @InProceedings{Shinya:1995:IPT, author = "Mikio Shinya", title = "Improvements on the Pixel-tracing Filter: Reflection/Refraction, Shadows, and Jittering", booktitle = "Graphics Interface '95", editor = "Wayne A. Davis and Przemyslaw Prusinkiewicz", year = "1995", organization = "Canadian Information Processing Society", publisher = "Canadian Human-Computer Communications Society", month = may, pages = "92--102", note = "ISBN 0-9695338-4-5", keywords = "anti-aliasing, spatio-temporal filtering, computer animation, flicker perception", who = "Havran Vlastimil: REN-0291", } @Article{Heidrich:1998:SPS, author = "Wolfgang Heidrich and Philip Slusallek and Hans-Peter Seidel", title = "Sampling procedural shaders using affine arithmetic", journal = "ACM Transactions on Graphics", volume = "17", number = "3", pages = "158--176", month = Jul, year = "1998", coden = "ATGRDF", ISSN = "0730-0301", bibdate = "Fri Oct 16 16:30:05 MDT 1998", url = "http://www.acm.org/pubs/citations/journals/tog/1998-17-3/p158-heidrich/", abstract = "Procedural shaders have become popular tools for describing surface reflectance functions and other material properties. In comparison to fixed resolution textures, they have the advantage of being resolution-independent and storage-efficient.\par While procedural shaders provide an interface for evaluating the shader at a single point, it is not easily possible to obtain an average value of the shader together with accurate error bounds over a finite area. Yet the ability to compute such error bounds is crucial for several interesting applications, most notably hierarchical area sampling for global illumination, using the finite element approach, and for generation of textures used in interactive computer graphics.\par Using affine arithmetic for evaluating the shader over a finite area yields a tight, conservative error interval for the shader function. Compilers can automatically generate code for utilizing affine arithmetic from within shaders implemented in a dedicated language such as the RenderMan shading language.", acknowledgement = ack-nhfb, keywords = "experimentation; performance; theory; verification", subject = "{\bf I.4.7} Computing Methodologies, IMAGE PROCESSING AND COMPUTER VISION, Feature Measurement, Texture. {\bf G.1.0} Mathematics of Computing, NUMERICAL ANALYSIS, General, Error analysis. {\bf G.1.0} Mathematics of Computing, NUMERICAL ANALYSIS, General, Interval arithmetic. {\bf G.1.4} Mathematics of Computing, NUMERICAL ANALYSIS, Quadrature and Numerical Differentiation, Automatic differentiation. {\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Color, shading, shadowing, and texture. {\bf I.4.1} Computing Methodologies, IMAGE PROCESSING AND COMPUTER VISION, Digitization and Image Capture, Sampling.", who = "Havran Vlastimil: REN-0292", } @Article{Walter:1997:GIU, author = "Bruce Walter and Philip M. Hubbard and Peter Shirley and Donald F. Greenberg", title = "Global Illumination Using Local Linear Density Estimation", journal = "ACM Transactions on Graphics", year = "1997", volume = "16", number = "3", month = Jul, pages = "217--259", note = "ISSN 0730-0301", keywords = "decimation, density estimation, particle tracing, realistic image synthesis, regression", annote = "This article presents the density estimation framework for generating view-independent global illumination solutions. It works by probabilistically simulating the light flow in an environment with light particles that trace random walks originating at luminaires and then using statistical density estimation techniques to reconstruct the lighting on each surface. By splitting the computation into separate transport and reconstruction stages, we gain many advantages including reduced memory usage, the ability to simulate nondiffuse transport, and natural parallelism. Solutions to several theoretical and practical difficulties in implementing this framework are also described. Light sources that vary spectrally and directionally are integrated into a spectral particle tracer using nonuniform rejection. A new local linear density estimation technique eliminates boundary bias and extends to arbitrary polygons. A mesh decimation algorithm with perceptual calibration is introdued to simplify the Gouraud-shaded representation of the solution for interactive display.", who = "Havran Vlastimil: REN-0293", } @Article{Poulin:1992:LHS, author = "Pierre Poulin and Alain Fournier", title = "Lights from highlights and shadows", journal = "Computer Graphics", volume = "25", number = "2", pages = "31--38", month = mar, year = "1992", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", conference = "held in Boston; 29 March -- 1 April 1992", keywords = "extended light sources, shadow volume, soft shadows, hard shadows, interactive light modeling", who = "Havran Vlastimil: REN-0294", } @InProceedings{Wanger:1992:ESQ, author = "Leonard Wanger", title = "The effect of shadow quality on the perception of spatial relationships in computer generated imagery", pages = "39--42", booktitle = "Computer Graphics (1992 Symposium on Interactive 3D Graphics)", volume = "25", number = "2", year = "1992", month = mar, editor = "David Zeltzer", conference = "held in Boston; 29 March - 1 April 1992", keywords = "interactive tasks, spatial relations, cue theory", who = "Havran Vlastimil: REN-0295", } @Article{Nishita:1993:NRA, author = "T. Nishita and E. Nakamae", title = "A new radiosity approach using area sampling for parametric patches", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "12", number = "3", pages = "385--398", month = "????", year = "1993", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "C4260 (Computational geometry); C6130B (Graphics techniques)", conflocation = "Barcelona, Spain; 6-10 Sept. 1993", conftitle = "European Association for Computer Graphics 14th Annual Conference and Exhibition. EUROGRAPHICS '93", corpsource = "Fukuyama Univ., Japan", keywords = "architecture; Architecture; architecture; area sampling; Area sampling; computational geometry; free-form surfaces; Free-form surfaces; geometrical optics; global; Global illumination; illumination; Illumination model; illumination model; Industrial products; industrial products; Interreflection; interreflection; Lightsources; lightsources; parametric patches; Parametric patches; Polygons; polygons; Pyramid tracing; pyramid tracing; Radiosity approach; radiosity approach; ray tracing; Realistic image synthesis; realistic image synthesis; rendering (computer graphics); simple curved; Simple curved surfaces; surfaces", thesaurus = "Computational geometry; Geometrical optics; Ray tracing; Rendering [computer graphics]", treatment = "P Practical", who = "Havran Vlastimil: REN-0296", } @Article{Bao:1993:PRA, author = "Hujun Bao and Qunsheng Peng", title = "A progressive radiosity algorithm for scenes containing curved surfaces", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "12", number = "3", pages = "C399--C408", month = "????", year = "1993", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "C4260 (Computational geometry); C6130B (Graphics techniques)", conflocation = "Barcelona, Spain; 6-10 Sept. 1993", conftitle = "European Association for Computer Graphics 14th Annual Conference and Exhibition. EUROGRAPHICS '93", corpsource = "State Key Lab. of CAD and CG, Zhejiang Univ., Hangzhou, China", keywords = "approach; computational geometry; curved surfaces; Curved surfaces; curved surfaces; differential diffuse surface areas; Differential diffuse surface areas; differential diffuse surface areas; generalized radiosity; Generalized radiosity approach; interpolation; Light energy transfer; light energy transfer; Linear interpolations; linear interpolations; ray tracing; realistic image synthesis; Realistic image synthesis; realistic image synthesis; rendering (computer graphics); triangular surface patches; Triangular surface patches; triangular surface patches", thesaurus = "Computational geometry; Interpolation; Ray tracing; Rendering [computer graphics]", treatment = "P Practical", who = "Havran Vlastimil: REN-0297", } @Article{Nehlig:1992:ATM, author = "P. Nehlig and D. Ghazanfarpour", title = "Affine texture mapping and antialiasing using integer arithmetic", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "11", number = "3", pages = "C227--C236, C477", month = "????", year = "1992", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "C6130B (Graphics techniques)", conflocation = "Cambridge, UK; 7-11 Sept. 1992", conftitle = "European Association for Computer Graphics 13th Annual Conference. EUROGRAPHICS 92", corpsource = "Centre de Recherche en Inf., Univ. Louis Pasteur, Strasbourg, France", keywords = "antialiasing; Antialiasing; antialiasing; arithmetic; computer graphics; data compression; discrete affine mapping; Discrete affine mapping; discrete affine mapping; image generation; Image generation; image generation; integer; Integer arithmetic; numerical methods; Texture compression; texture compression; texture mapping; Texture mapping", thesaurus = "Computer graphics; Data compression; Numerical methods", treatment = "T Theoretical or Mathematical", who = "Havran Vlastimil: REN-0298", } @Article{Heckbert:1992:RF, author = "P. S. Heckbert", title = "Radiosity in flatland", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "11", number = "3", pages = "C181--C192, C474", month = "????", year = "1992", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Mon Apr 14 10:23:20 MDT 1997", acknowledgement = ack-nhfb, classification = "C4185 (Finite element analysis); C6130B (Graphics techniques)", conflocation = "Cambridge, UK; 7-11 Sept. 1992", conftitle = "European Association for Computer Graphics 13th Annual Conference. EUROGRAPHICS 92", corpsource = "Dept. of Tech. Math. and Inf., Delft Univ. of Technol., Netherlands", keywords = "approximations; Computer graphics; computer graphics; computerised picture processing; discontinuities; Discontinuities; discontinuity meshing; Discontinuity meshing; element analysis; finite; Finite element method; finite element method; Flatland; flatland; global; Global illumination; illumination; Image synthesis technique; image synthesis technique; integral equation; Integral equation; integral equation; interreflection of light; Interreflection of light; interreflection of light; mesh boundaries; Mesh boundaries; piecewise-linear; Piecewise-linear approximations; Radiosity method; radiosity method; shadow edges; Shadow edges; shadow edges; simulation; Simulation", thesaurus = "Computer graphics; Computerised picture processing; Finite element analysis", treatment = "P Practical", who = "Havran Vlastimil: REN-0299", } @InProceedings{Diefenbach:1997:MPP, author = "Paul J. Diefenbach and Norman I. Badler", title = "Multi-Pass Pipeline Rendering: Realism For Dynamic Environments", booktitle = "1997 Symposium on Interactive {3D} Graphics", pages = "59--70", year = "1997", editor = "Michael Cohen and David Zeltzer", month = apr, organization = "ACM SIGGRAPH", note = "ISBN 0-89791-884-3", who = "Havran Vlastimil: REN-0300", } @Article{Jensen:1995:PMB, author = "Henrik Wann Jensen and Niels J{\o}rgen Christensen", title = "Photon maps in bidirectional {Monte Carlo} ray tracing of complex objects", journal = "Computers and Graphics", volume = "19", number = "2", pages = "215--224", month = mar # "--" # apr, year = "1995", coden = "COGRD2", ISSN = "0097-8493", bibdate = "Tue Oct 5 22:24:31 MDT 1999", url = "http://www.elsevier.com/cgi-bin/cas/tree/store/cag/cas_sub/browse/browse.cgi?year=1995&;volume=19&issue=2&aid=9400145", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0301", } @Article{Shi:1993:MRA, author = "Jiaoying Shi and Aidong Zhang and Jose Encarna{\c{c}}{\~a}o and Martin G{\"o}bel", title = "A modified radiosity algorithm for integrated visual and auditory rendering", journal = "Computers and Graphics", volume = "17", number = "6", pages = "633--642", month = nov # "--" # dec, year = "1993", coden = "COGRD2", ISSN = "0097-8493", bibdate = "Wed Feb 5 07:22:58 MST 1997", acknowledgement = ack-nhfb, affiliation = "Zhejiang Univ", affiliationaddress = "Hangzhou, China", classification = "722.4; 723.1; 723.5; 741.1; 741.2; 751.3", conferenceyear = "1993", journalabr = "Comput Graphics (Pergamon)", keywords = "Algorithms; Architectural acoustics; Audition; Auditory rendering; Computer simulation; Light propagation; Natural sciences computing; Radiosity algorithms; Three dimensional computer graphics; User interfaces; Virtual reality; Vision; Visual rendering; Visualization", who = "Havran Vlastimil: REN-0302", } @Article{Pattanaik:1993:EPE, author = "S. N. Pattanaik and S. P. Mudur", title = "Efficient potential equation solutions for global illumination computation", journal = "Computers and Graphics", volume = "17", number = "4", pages = "387--396", month = "Jul/Aug", year = "1993", coden = "COGRD2", ISSN = "0097-8493", bibdate = "Wed Feb 5 07:22:58 MST 1997", acknowledgement = ack-nhfb, affiliation = "Natl Cent for Software Technology", affiliationaddress = "Bombay, India", classification = "707; 721.1; 921", journalabr = "Comput Graphics (Pergamon)", keywords = "Computation theory; Efficient potential equation solutions; Global illumination; Illumination computation methods; Lighting; Mathematical techniques; Particle tracing", who = "Havran Vlastimil: REN-0303", } @InProceedings{Tellier94-PLMII, author = "Pierre Tellier and Kadi Bouatouch", editor = "P. Brunet and F. W. Jansen", year = "1994", title = "Physics-{Based} {Lighting} {Models}: {Implementation} {Issues}", booktitle = "Photorealistic Rendering in Computer Graphics (Proceedings of the Second Eurographics Workshop on Rendering)", pages = "112--121", publisher = "Springer-Verlag", address = "New York, NY", who = "Havran Vlastimil: REN-0304", } @InProceedings{Cook:1981:RMC, author = "R. L. Cook and K. E. Torrance", title = "A reflectance model for computer graphics", pages = "307--316", journal = "Computer Graphics (SIGGRAPH '81 Proceedings)", volume = "15", number = "3", year = "1981", month = Aug, conference = "held in Dallas, Texas; July 1981", keywords = "I33 reflectance models", who = "Havran Vlastimil: REN-0305", } @InProceedings{Lange94a, author = "Brigitta Lange", title = "The Simulation of Radiant Light Transfer with Stochastic Ray-Tracing", booktitle = "Photorealistic Rendering in Computer Graphics (Proceedings of the Second Eurographics Workshop on Rendering)", pages = "30--44", publisher = "Springer-Verlag", address = "New York", year = "1994", keywords = "monte carlo, radiosity, stochastic sampling, caustics", note = "an implementation of Kajiya's {"}Rendering Equation{"} paper", who = "Havran Vlastimil: REN-0306", } @InProceedings{Clave94-RPSLS, author = "Salvador Clave and Markus Gross", editor = "P. Brunet and F. W. Jansen", year = "1994", title = "A {Rendering} {Pipeline} for {Street} {Lighting} {Simulation}", booktitle = "Photorealistic Rendering in Computer Graphics (Proceedings of the Second Eurographics Workshop on Rendering)", pages = "251--262", publisher = "Springer-Verlag", address = "New York, NY", who = "Havran Vlastimil: REN-0307", } @InProceedings{Boulville92-TAGIM, author = "Christian Bouville and Kadi Bouatouch and Pierre Tellier and Xavier Pueyo", editor = "K. Bouatouch and C. Bouville", year = "1992", title = "A {Theoretical} {Analysis} of {Global} {Illumination} {Models}", booktitle = "Photorealism in Computer Graphics (Proceedings Eurographics Workshop on Photosimulation, Realism and Physics in Computer Graphics, 1990)", pages = "53--66", publisher = "Springer-Verlag", address = "Berlin, Germany", comments = "energy transport equations", who = "Havran Vlastimil: REN-0308", } @InProceedings{Jensen:1998:ESL, author = "Henrik Wann Jensen and Per H. Christensen", title = "Efficient Simulation of Light Transport in Scenes With Participating Media Using Photon Maps", booktitle = "SIGGRAPH 98 Conference Proceedings", editor = "Michael Cohen", series = "Annual Conference Series", year = "1998", organization = "ACM SIGGRAPH", publisher = "Addison Wesley", month = Jul, pages = "311--320", note = "ISBN 0-89791-999-8", annote = "This paper presents a new method for computing global illumination in scenes with participating media. The method is based on bidirectional Monte Carlo ray tracing and uses photon maps to increase efficciency and reduce noise. We remove previous restrictions limiting the photon map method to surfaces by introducing a volume photon map containing photons in participating media. We also derive a new radiance estimate for photons in the volume photon map. The method is fast and simple, but also general enough to handle nonhomogeneous media and anisotropic scattering. It can efficiently simulate effects such as multiple volume scattering, color bleeding between volumes and surfaces, and volume caustics (light re ected from or transmitted through specular surfaces and then scattered by a medium). The photon map is decoupled from the geometric representation of the scene, making the method capable of simulating global illumination in scenes containing complex objects. These objects do not need to be tessellated; they can be instanced, or even represented by an implicit function. Since the method is based on a bidirectional simulation, it automatically adapts to illumination and view. Furthermore, because the use of photon maps reduces noise and aliasing, the method is suitable for rendering of animations.", who = "Havran Vlastimil: REN-0309", } @Article{deFigueiredo:1996:AEI, author = "Luiz Henrique {de Figueiredo} and Jorge Stolfi", title = "Adaptive enumeration of implicit surfaces with affine arithmetic", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "15", number = "5", pages = "287--296", month = dec, year = "1996", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Tue Mar 17 15:44:38 MST 1998", acknowledgement = ack-nhfb, affiliation = "Computer Science Dep", classification = "716.1; 721.1; 723.5; 921.4; 921.6; 922.2; C1160 (Combinatorial mathematics); C4210 (Formal logic); C6120 (File organisation); C6130B (Graphics techniques)", corpsource = "Dept. of Comput. Sci., PUC, Rio de Janeiro, Brazil", journalabr = "Comput Graphics Forum", keywords = "Adaptive algorithms; adaptive enumeration; Affine arithmetic; affine arithmetic; Approximation theory; cellular logic; Cellular models; Correlation theory; Digital arithmetic; Implicit surfaces; implicit surfaces; Interval arithmetic; interval arithmetic; Mathematical models; Octrees; octrees; operands; range analysts; rendering (computer graphics); rendering methods; standard; Three dimensional computer graphics; Trees (mathematics)", treatment = "P Practical", who = "Havran Vlastimil: REN-0310", } @Article{Durand:1999:FAH, author = "Fr{\'e}do Durand and George Drettakis and Claude Puech", title = "Fast and accurate hierarchical radiosity using global visibility", journal = "ACM Transactions on Graphics", volume = "18", number = "2", pages = "128--170", month = apr, year = "1999", coden = "ATGRDF", ISSN = "0730-0301", bibdate = "Wed Apr 5 06:31:37 MDT 2000", url = "http://www.acm.org:80/pubs/citations/journals/tog/1999-18-2/p128-durand/", abstract = "Recent hierarchical global illumination algorithms permit the generation of images with a high degree of realism. Nonetheless, appropriate refinement of light transfers, high quality meshing, and accurate visibility calculation can be challenging tasks. This is particularly true for scenes containing multiple light sources and scenes lit mainly by indirect light. We present solutions to these problems by extending a global visibility data structure, the Visibility Skeleton. This extension allows us to calculate exact point-to-polygon form-factors at vertices created by subdivision. The structures also provides visibility information for all light interactions, allowing intelligent refinement strategies. High-quality meshing is effected based on a perceptually based ranking strategy which results in appropriate insertions of discontinuity curves into the meshes representing illumination. We introduce a hierarchy of triangulations that allows the generation of a hierarchical radiosity solution using accurate visibility and meshing. Results of our implementation show that our new algorithm produces high quality view-independent lighting solutions for direct illumination, for scenes with multiple lights and also scenes lit mainly by indirect illumination.", acknowledgement = ack-nhfb, keywords = "discontinuity meshing; form factor calculation; global illumination; global visibility; hierarchical radiosity; hierarchical triangulation; perception", subject = "Computing Methodologies -Computer Graphics --- Three-Dimensional Graphics and Realism (I.3.7); General Terms: Algorithms", note = "Also VIS-0170", who = "Havran Vlastimil: REN-0311", } @InProceedings{Ferwerda:1997:MVM, author = "James A. Ferwerda and Sumanta N. Pattanaik and Peter Shirley and Donald P. Greenberg", title = "A Model of Visual Masking for Computer Graphics", booktitle = "SIGGRAPH 97 Conference Proceedings", editor = "Turner Whitted", series = "Annual Conference Series", year = "1997", organization = "ACM SIGGRAPH", publisher = "Addison Wesley", month = Aug, pages = "143--152", isbn = "ISBN 0-89791-896-7", keywords = "visual perception, masking, image quality, error metrics", annote = "In this paper we develop a computational model of visual masking based on psychophysical data. The model predicts how the presence of one visual pattern affects the detectability of another. The model allows us to choose texture patterns for computer graphics images that hide the effects of faceting, banding, aliasing, noise and other visual artifacts produced by sources of error in graphics algorithms. We demonstrate the utility of the model by choosing a texture pattern to mask faceting artifacts caused by polygonal tesselation of a at-shaded curved surface. The model predicts how changes in the contrast, spatial frequency, and orientation of the texture pattern, or changes in the tesselation of the surface will alter the masking effect. The model is general and has uses in geometric modeling, realistic image synthesis, scientific visualization, image compression, and image-based rendering.", who = "Havran Vlastimil: REN-0312", } @InProceedings{EVL-2000-67, pages = "287--296", year = "2000", title = "Surface Light Fields for 3{D} Photography", url = "http://visinfo.zib.de/EVlib/Show?EVL-2000-67", author = "Daniel N. Wood and Daniel I. Azuma and Ken Aldinger and Brian Curless and Tom Duchamp and David H. Salesin and Werner Stuetzle", abstract = "A surface light field is a function that assigns a color to each ray originating on a surface. Surface light fields are well suited to constructing virtual images of shiny objects under complex lighting conditions. This paper presents a framework for construction, compression, interactive rendering, and rudimentary editing of surface light fields of real objects. Generalizations of vector quantization and principal component analysis are used to construct a compressed representation of an object's surface light field from photographs and range scans. A new rendering algorithm achieves interactive rendering of images from the compressed representation, incorporating view-dependent geometric level-of-detail control. The surface light field representation can also be directly edited to yield plausible surface light fields for small changes in surface geometry and reflectance properties.", editor = "Kurt Akeley", keywords = "surface light fields, 3D photography, lumigraph, light field, function quantization, principal function analysis, view-dependent level-of-detail, image-based rendering, wavelets", series = "Annual Conference Series", booktitle = "Siggraph 2000, Computer Graphics Proceedings", publisher = "ACM Press / ACM SIGGRAPH / Addison Wesley Longman", who = "Havran Vlastimil: REN-0313", } @InProceedings{Worrall98-IASS*, author = "Adam Worrall and David Hedley and Derek Paddon", month = jun, year = "1998", title = "Interactive Animation of Soft Shadows", booktitle = "Proceedings of Computer Animation 1998", pages = "88--94", note = "Available from http://www.cs.bris.ac.uk/Tools/Reports/Authors/worrall.html", publisher = "IEEE Computer Society Press", who = "Havran Vlastimil: REN-0314", } @InProceedings{Heidrich:rend99-187, booktitle = "Rendering Techniques '99", year = "1999", editor = "Dani Lischinski and Greg Ward Larson", series = "Eurographics", publisher = "Springer-Verlag Wien New York", author = "Wolfgang Heidrich and Hendrik Lensch and Michael F. Cohen and Hans-Peter Seidel", title = "Light Field Techniques for Reflexions and Refractions", pages = "187--196", who = "Havran Vlastimil: REN-0315", } @InProceedings{Keating:rend99-197, booktitle = "Rendering Techniques '99", year = "1999", editor = "Dani Lischinski and Greg Ward Larson", series = "Eurographics", publisher = "Springer-Verlag Wien New York", author = "Brett Keating and Nelson Max", title = "Shadow Penumbras for Complex Objects by Depth-Dependent Filtering of Multi-Layer Depth Images", pages = "197--212", who = "Havran Vlastimil: REN-0316", } @InProceedings{Walter:rend99-19, booktitle = "Rendering Techniques '99", year = "1999", editor = "Dani Lischinski and Greg Ward Larson", series = "Eurographics", publisher = "Springer-Verlag Wien New York", author = "Bruce Walter and George Drettakis and Steven Parker", title = "Interactive Rendering using Render Cache", pages = "19--30", who = "Havran Vlastimil: REN-0317", } @InProceedings{EVL-1998-106, pages = "31--38", year = "1998", title = "A Real-Time Volume Rendering Architecture Using an Adaptive Resampling Scheme for Parallel and Perspective Projections", url = "http://visinfo.zib.de/EVlib/Show?EVL-1998-106", author = "Masato Ogata and TakaHide Ohkami and Hugh C. Lauer and Hanspeter Pfister", language = "en", abstract = "This paper describes an object-order real-time volume rendering architecture using an adaptive resampling scheme to perform re-sampling operations in a unified parallel-pipeline manner for both parallel and perspective projections. Unlike parallel projections, perspective projections require a variable resampling structure due to diverging perspective rays. In order to address this issue, we propose an adaptive pipelined convolution block for resampling operations using the level of resolution to keep the parallel-pipeline structure regular. We also propose to use multi-resolution datasets prepared for different levels of grid resolution to bound the convolution operations. The proposed convolution block is organized using a systolic array structure, which works well with a distributed skewed memory for conflict-free accesses of voxels. We present the results of some experiments with our software simulators of the proposed architecture and discuss about important technical issues.", organization = "IEEE, ACM SIGGRAPH", keywords = "Volume Graphics, Volume Rendering, Raycasting, Raytracing, Parallel Projection, Perspective Projection, Scientific Visualization, Real-Time, Systolic Array", copyright = "IEEE, ACM SIGGRAPH", booktitle = "IEEE Symposium on Volume Visualization", who = "Havran Vlastimil: REN-0318", } @InProceedings{EVL-1998-107, pages = "39--46", year = "1998", title = "Adding Shadows to a Texture-Based Volume Renderer", url = "http://visinfo.zib.de/EVlib/Show?EVL-1998-107", author = "Uwe Behrens and Ralf Ratering", language = "en", abstract = "Texture-based volume rendering is a technique to efficiently visualize volumetric data using texture mapping hardware. In this paper we present an algorithm, that extends this approach to render shadows for the volume. The algorithm takes advantage of fast frame-buffer operations modern graphics hardware offers, but does not depend on any special purpose hardware. The visual impression of the final image is significantly improved by bringing more structure and three-dimensional information into the often foggyish appearance of texture-based volume renderings. Although the algorithm does not perform lighting calculations, the resulting image has a shaded appearance, which is a further visual cue to spatial understanding of the data and lets the images appear more realistic. As calculating the shadows is independent of the visualization process it can be applied to any form of volume visualization, though volume rendering based on two- or three-dimensional texture mapping hardware makes the most sense. Compared to unshadowed texture-based volume rendering, performance decreases by less than 50%, which is still sufficient to guarantee interactive manipulation of the volume data. In the special case where only the camera is moving with the light position fixed to the scene there is no performance decrease at all, because recalculation has only to be done if the position of the light source with respect to the volume changes.", organization = "IEEE, ACM SIGGRAPH", keywords = "volume rendering, shadow algorithms, texture-based volume rendering, image compositing", copyright = "IEEE, ACM SIGGRAPH", booktitle = "IEEE Symposium on Volume Visualization", who = "Havran Vlastimil: REN-0319", } @TechReport{Prikryl99-IDHRR, author = "J. Prikryl and Philippe Bekaert and Werner Purgathofer", month = oct, year = "1999", title = "Importance-Driven Hierarchical Stochastic Ray Radiosity", number = "TR-186-2-99-22", note = "Available from http://www.cg.tuwien.ac.at/research/TR/detailed_index.html", address = "Vienna, Austria", institution = "Institute of Computer Graphics, Vienna University of Technology", who = "Havran Vlastimil: REN-0320", } @Article{Tumblin:1993:TRR, author = "Jack Tumblin and Holly E. Rushmeier", title = "Tone Reproduction for Realistic Images", journal = "IEEE Computer Graphics and Applications", volume = "13", number = "6", pages = "42--48", month = nov, year = "1993", coden = "ICGADZ", ISSN = "0272-1716", bibdate = "Sat Jan 25 06:42:48 MST 1997", note = "also appeared as Tech. Report GIT-GVU-91-13, Graphics, Visualization \& Usability Center, Coll. of Computing, Georgia Institute of Tech", abstract = "Display methods should compensate for all light-dependent changes in the way we see. Better tone reproduction for computer graphics will help solve display range problems.", acknowledgement = ack-nhfb, affiliation = "Georgia Inst. of Technol., Atlanta, GA, USA", classification = "461.1; 722.4; 723.5; 741.1; 741.2", journalabr = "IEEE Comput Graphics Appl", keywords = "Color computer graphics; Display devices; Global illumination method; Illuminating engineering; Image processing; Image synthesis; Light dependent effects; Medical applications; Radiosity image display; Tone reproduction; Vision", who = "Havran Vlastimil: REN-0321", } @InProceedings{EVL-1999-311, pages = "291--298", year = "1999", title = "{LOD}-Sprite Technique for Accelerated Terrain Rendering", url = "http://visinfo.zib.de/EVlib/Show?EVL-1999-311", author = "Baoquan Chen and J. Edward Swan II and Eddy Kuo and Arie E. Kaufman", abstract = "We present a new rendering technique, termed LOD-sprite rendering, which uses a combination of a level-of-detail (LOD) represen- tation of the scene together with reusing image sprites (previously rendered images). Our primary application is accelerating terrain rendering. The LOD-sprite technique renders an initial frame using a high-resolution model of the scene geometry. It renders subsequent frames with a much lower-resolution model of the scene geometry and texture-maps each polygon with the image sprite from the initial high-resolution frame. As it renders these subsequent frames the technique measures the error associated with the divergence of the view position from the position where the initial frame was rendered. Once this error exceeds a user-defined threshold, the technique re-renders the scene from the high-resolution model. We have efficiently implemented the LOD-sprite technique with texture-mapping graphics hardware. Although to date we have only applied LOD-sprite to terrain rendering, it could easily be extended to other applications. We feel LOD-sprite holds particular promise for real-time rendering systems.", organization = "IEEE", address = "San Francisco", editor = "David Ebert and Markus Gross and Bernd Hamann", booktitle = "IEEE Visualization '99", who = "Havran Vlastimil: REN-0322", } @InProceedings{Bastos:1999:SICG, author = "Uri Bastos and Kenneth Hoff and William Wynn and Anselmo Lastra", title = "Increased Photorealism for Interactive Architectural Walkthroughs", booktitle = "1999 Symposium on Interactive {3D} Graphics", pages = "183--190", year = "1999", organization = "ACM SIGGRAPH", note = "ISBN 1-58113-082-1/99/04", who = "Havran Vlastimil: REN-0323", } @InProceedings{EVL-1998-360, pages = "351--358", year = "1998", title = "Pixel Masks for Screen-Door Transparency", author = "Jurriaan D. Mulder and Frans C. A. Groen and Jarke J. van Wijk", url = "http://visinfo.zib.de/EVlib/Show?EVL-1998-360", abstract = "Rendering objects transparently gives additional insight in complex and overlapping structures. However, traditional techniques for the rendering of transparent objects such as alpha blending are not very well suited for the rendering of multiple transparent objects in dynamic scenes. Screen-door transparency is a technique to render transparent objects in a simple and efficient way: No sorting is required and intersecting polygons can be handled without further preprocessing. With this technique, polygons are rendered through a mask: Only where the mask is present, pixels are set. However, artifacts such as incorrect opacities and distracting patterns can easily occur if the masks are not carefully designed. In this paper, first the requirements on the masks are considered. Next, three algorithms are presented for the generation of pixel masks. One algorithm is designed for the creation of small (e.g. 4 \Theta 4) masks. The other two algorithms can be used for the creation of larger masks (e.g. 32 \Theta 32). For each of these algorithms results are presented and discussed.", organization = "IEEE", editor = "David Ebert and Hans Hagen and Holly Rushmeier", keywords = "Screen-Door Transparency", booktitle = "IEEE Visualization '98", who = "Havran Vlastimil: REN-0324", } @InProceedings{EVL-2000-86, pages = "455--464", year = "2000", title = "Illuminating Micro Geometry Based on Precomputed Visibility", url = "http://visinfo.zib.de/EVlib/Show?EVL-2000-86", author = "Wolfgang Heidrich and Katja Daubert and Jan Kautz and Hans-Peter Seidel", abstract = "Many researchers have been arguing that geometry, bump maps, and BRDFs present a hierarchy of detail that should be exploited for efficient rendering purposes. In practice however, this is often not possible due to inconsistencies in the illumination for these different levels of detail. For example, while bump map rendering often only considers direct illumination and no shadows, geometry-based rendering and BRDFs will mostly also respect shadowing effects, and in many cases even indirect illumination caused by scattered light. In this paper, we present an approach for overcoming these inconsistencies. We introduce an inexpensive method for consistently illuminating height fields and bump maps, as well as simulating BRDFs based on precomputed visibility information. With this information we can achieve a consistent illumination across the levels of detail. The method we propose offers significant performance benefits over existing algorithms for computing the light scattering in height fields and for computing a sampled BRDF representation using a virtual gonioreflectometer. The performance can be further improved by utilizing graphics hardware, which then also allows for interactive display. Finally, our method also approximates the changes in illumination when the height field, bump map, or BRDF is applied to a surface with a different curvature.", editor = "Kurt Akeley", keywords = "Illumination Effects, Monte Carlo Techniques, Graphics Hardware, Frame Buffer Tricks, Reflectance & Shading Models, Texture Mapping", series = "Annual Conference Series", booktitle = "Siggraph 2000, Computer Graphics Proceedings", publisher = "ACM Press / ACM SIGGRAPH / Addison Wesley Longman", who = "Havran Vlastimil: REN-0325", } @Article{Neumann:1999:CMR, author = "L{\'a}szl{\'o} Neumann and Attila Neumannn and L{\'a}szl{\'o} Szirmay-Kalos", title = "Compact Metallic Reflectance Models", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "18", number = "3", pages = "??--??", month = sep, year = "1999", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Wed Oct 11 06:13:37 MDT 2000", url = "http://www.blackwellpublishers.co.uk/asp/journal.asp?ref=0167-7055&;amp;src=ard&aid=337&iid=3&vid=18", acknowledgement = ack-nhfb, author-1-adr = "Department of Control Engineering and Information Technology, Technical University of Budapest, Budapest, Hungary", author-2-adr = "Department of Control Engineering and Information Technology, Technical University of Budapest, Budapest, Hungary", author-3-adr = "Department of Control Engineering and Information Technology, Technical University of Budapest, Budapest, Hungary", who = "Havran Vlastimil: REN-0326", } @Article{Szirmay-Kalos:1999:SIN, author = "L{\'a}szl{\'o} Szirmay-Kalos", title = "Stochastic Iteration for Non-diffuse Global Illumination", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "18", number = "3", pages = "??--??", month = sep, year = "1999", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Wed Oct 11 06:13:37 MDT 2000", url = "http://www.blackwellpublishers.co.uk/asp/journal.asp?ref=0167-7055&;amp;src=ard&aid=344&iid=3&vid=18", acknowledgement = ack-nhfb, author-1-adr = "Department of Control Engineering and Information Technology, Technical University of Budapest, Hungary", who = "Havran Vlastimil: REN-0327", } @Article{Weiskopf:1999:SDE, author = "Daniel Weiskopf and Ute Kraus and Hanns Ruder", title = "Searchlight and {Doppler} effects in the visualization of special relativity: a corrected derivation of the transformation of radiance", journal = "ACM Transactions on Graphics", volume = "18", number = "3", pages = "278--292", month = jul, year = "1999", coden = "ATGRDF", ISSN = "0730-0301", abstract = "We demonstrate that a photo-realistic image of a rapidly moving object is dominated by the searchlight and Doppler effects. Using a photon-counting technique, we derive expressions for the relativistic transformation of radiance. We show how to incorporate the Doppler and searchlight effects in the two common techniques of special relativistic visualization, namely ray tracing and polygon rendering. Most authors consider geometrical appearance only and neglect relativistic effects on the lighting model. Chang et al. [1996] present an incorrect derivation of the searchlight effect, which we compare to our results. Some examples are given to show the results of image synthesis with relativistic effects taken into account.", bibdate = "Mon Sep 18 10:53:48 MDT 2000", url = "http://www.acm.org/pubs/citations/journals/tog/1999-18-3/p278-weiskopf/", keywords = "Doppler effect; Lorentz transformation; aberration of light; illumination; searchlight effect; special relativity", subject = "Computing Methodologies --- Computer Graphics --- Three-Dimensional Graphics and Realism (I.3.7); .Computing Methodologies --- Computer Graphics --- Three-Dimensional Graphics and Realism (I.3.7): Color, shading, shadowing, and texture; Computer Applications --- Physical Sciences and Engineering (J.2); Computer Applications --- Physical Sciences and Engineering (J.2): Physics;", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0328", } @Article{Neumann:1999:RMF, author = "L{\'a}szl{\'o} Neumann and Attila Neumann and L{\'a}szl{\'o} Szirmay-Kalos", title = "Reflectance Models with Fast Importance Sampling", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "18", number = "4", pages = "??--??", month = dec, year = "1999", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Wed Oct 11 06:13:38 MDT 2000", url = "http://www.blackwellpublishers.co.uk/asp/journal.asp?ref=0167-7055&;amp;src=ard&aid=378&iid=4&vid=18", acknowledgement = ack-nhfb, author-1-adr = "Department of Control Engineering and Information Technology, Technical University of Budapest", author-2-adr = "Department of Control Engineering and Information Technology, Technical University of Budapest", author-3-adr = "Department of Control Engineering and Information Technology, Technical University of Budapest", who = "Havran Vlastimil: REN-0329", } @InProceedings{Durand00-ITM, author = "Fredo Durand and Julie Dorsey", editor = "B. Peroche and H. Rushmeier", year = "2000", title = "Interactive Tone Mapping", booktitle = "Rendering Techniques 2000 (Proceedings of the Eleventh Eurographics Workshop on Rendering)", note = "To appear", publisher = "Springer Wien", address = "New York, NY", who = "Havran Vlastimil: REN-0330", } @InProceedings{EVL-2000-78, pages = "385--392", year = "2000", title = "Deep Shadow Maps", author = "Tom Lokovic and Eric Veach", url = "http://visinfo.zib.de/EVlib/Show?EVL-2000-78", abstract = "Abstract We introduce deep shadow maps, a technique that produces fast, high-quality shadows for primitives such as hair, fur, and smoke. Unlike traditional shadow maps, which store a single depth at each pixel, deep shadow maps store a representation of the fractional visibility through a pixel at all possible depths. Deep shadow maps have several advantages. First, they are prefiltered, which allows faster shadow lookups and much smaller memory footprints than regular shadow maps of similar quality. Second, they support shadows from partially transparent surfaces and volumetric objects such as fog. Third, they handle important cases of motion blur at no extra cost. The algorithm is simple to implement and can be added easily to existing renderers as an alternative to ordinary shadow maps.", editor = "Kurt Akeley", series = "Annual Conference Series", booktitle = "Siggraph 2000, Computer Graphics Proceedings", publisher = "ACM SIGGRAPH / Addison Wesley Longman", who = "Havran Vlastimil: REN-0331", } @Article{Huttner:1999:FTV, author = "Tobias H{\"u}ttner and Wolfgang Strasser", title = "FlyAway: a {$3$D} terrain visualization system using multiresolution principles", journal = "Computers and Graphics", volume = "23", number = "4", pages = "479--485", month = aug, year = "1999", coden = "COGRD2", ISSN = "0097-8493", bibdate = "Sat Oct 21 14:27:18 MDT 2000", url = "http://www.elsevier.nl/gej-ng/10/13/20/24/34/29/abstract.html; http://www.elsevier.nl/gej-ng/10/13/20/24/34/29/article.pdf", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0331", } @Article{Cohen-Or:1997:EAT, author = "Daniel {Cohen-Or}", title = "Exact antialiasing of textured terrain models", journal = "The Visual Computer", year = "1997", volume = "13", number = "4", pages = "184--199", publisher = "Springer-Verlag", note = "ISSN 0178-2789", keywords = "terrain visualization, visual simulations, voxel-based modelling, ray casting, antialiasing, area sampling, supersampling", annote = "We introduce a fast area-sampling antialiasing technique for textured terrain models. We scan the model in image order, averaging the pixel footprint values. The technique samples all, but only, the visible parts. It improves previous texture mapping methods that ignore selfoccluded footprints. It is superior to super-sampling. The image quality is assessed in both spatial and temporal domains. The good precision of the sampling process in the spatial domain provides an alias-free temporal domain. The low computational cost of the rendering technique and its high-quality filtering in the spatio-temporal domain offer a tool for real-time rendering of discrete terrain models.", who = "Havran Vlastimil: REN-0332", } @InProceedings{EVL-2000-194, year = "2000", title = "Texturing Techniques for Terrain Visualization", author = "J{\"u}rgen D{\"o}llner and Konstantin Baumann and Klaus Hinrichs", url = "http://visinfo.zib.de/EVlib/Show?EVL-2000-194", abstract = "We present a new rendering technique for processing multiple multiresolution textures of LOD terrain models and describe its application to interactive, animated terrain content design. The approach is based on a multiresolution model for terrain texture which cooperates with a multiresolution model for terrain geometry. For each texture layer, an image pyramid and a texture tree are constructed. Multiple texture layers can be associated with one terrain model and can be combined in different ways, e.g., by blending and masking. The rendering algorithm traverses simultaneously the geometry multiresolution model and the texture multiresolution model, and takes into account geometric and texture approximation errors. It uses multi-pass rendering and exploits multitexturing to achieve real-time performance. Applications include interactive texture lenses, texture animation, and topographic textures. These techniques offer an enormous potential for developing new visualization applications for presenting, exploring and manipulating spatio-temporal data.", booktitle = "Proc. of the 11th Ann. IEEE Visualization Conference (Vis) 2000", who = "Havran Vlastimil: REN-0333", } @InProceedings{Premoze:rend99-107, booktitle = "Rendering Techniques '99", year = "1999", editor = "Dani Lischinski and Greg Ward Larson", series = "Eurographics", publisher = "Springer-Verlag Wien New York", author = "Simon Premoze and William B. Thompson and Peter Shirley", title = "Geospecific Rendering of Alpine Terrain", pages = "107--118", who = "Havran Vlastimil: REN-0334", } @Article{Reddy:1999:TIV, author = "Martin Reddy and Yvan Leclerc and Lee Iverson and Nat Bletter", title = "{TerraVision II}: Visualizing Massive Terrain Databases in {VRML}", journal = "IEEE Computer Graphics and Applications", volume = "19", number = "2", pages = "30--38", month = mar # "\slash " # apr, year = "1999", coden = "ICGADZ", ISSN = "0272-1716", bibdate = "Mon Apr 12 07:01:44 MDT 1999", url = "http://computer.org/cga/cg1999/g2030abs.htm; http://dlib.computer.org/cg/books/cg1999/pdf/g2030.pdf", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0335", } @InProceedings{EVL-1998-123, pages = "19--26", year = "1998", title = "Large Scale Terrain Visualization Using The Restricted Quadtree Triangulation", author = "Renato Pajarola", url = "http://visinfo.zib.de/EVlib/Show?EVL-1998-123", language = "en", abstract = "Real-time rendering of triangulated surfaces has attracted growing interest in the last few years. However, interactive visualization of very large scale grid digital elevation models is still a hard problem. The graphics load must be controlled by an adaptive surface triangulation and by taking advantage of different levels of detail. Furthermore, the management of the visible scene requires efficient access to the terrain database. We describe a all-in-one visualization system which integrates adaptive triangulation, dynamic scene management and spatial data handling. The triangulation model is based on the restricted quadtree triangulation. Furthermore, we present new algorithms of the restricted quadtree triangulation. These include among others exact error approximation, progressive meshing, performance enhancements and spatial access.", organization = "IEEE", copyright = "IEEE", booktitle = "Proceedings IEEE Visualization'98", who = "Havran Vlastimil: REN-0336", } @InProceedings{EVL-1998-149, pages = "343--350", year = "1998", title = "Interactive Display Of Very Large Textures", author = "David Cline and Parris K. Egbert", url = "http://visinfo.zib.de/EVlib/Show?EVL-1998-149", language = "en", abstract = "Large textures cause bottlenecks in real-time applications that often lead to a loss of interactivity. These performance bottlenecks occur because of disk and network transfer, texture translation, and memory swapping. We present a software solution that alleviates the problems associated with large textures by treating texture as a bandwidth-limited resource rather than a finite resource. As a result the display of large textures is reduced to a caching problem in which texture memory serves as the primary cache for texture data, main memory the secondary cache, and local disk the tertiary cache. By using this cache hierarchy, applications are able to maintain real-time performance while displaying textures hundreds of times larger than can fit into texture memory.", organization = "IEEE", copyright = "IEEE", booktitle = "Proceedings IEEE Visualization'98", who = "Havran Vlastimil: REN-0337", } @InProceedings{Schauffer:rend99-174, booktitle = "Rendering Techniques '99", year = "1999", editor = "Dani Lischinski and Greg Ward Larson", series = "Eurographics", publisher = "Springer-Verlag Wien New York", author = "Gernot Schauffer and Markus Priglinger", title = "Efficient Displacement Mapping by Image Warping", pages = "175--186", who = "Havran Vlastimil: REN-0338", } @InProceedings{EVL-1999-121, year = "1999", title = "Applications of Pixel Textures in Visualization and Realistic Image Synthesis", author = "W. Heidrich and R. Westermann and H.-P. Seidel and T. Ertl", url = "http://visinfo.zib.de/EVlib/Show?EVL-1999-121", organization = "ACM/Siggraph", booktitle = "ACM Symposium on Interactive 3D Graphics", who = "Havran Vlastimil: REN-0339", } @Article{tvcg-1998-4, author = "Fabrice Neyret", title = "{Modeling, Animating, and Rendering Complex Scenes Using Volumetric Textures}", journal = "IEEE Transactions on Visualization and Computer Graphics", volume = "4", number = "1", month = jan, year = "1998", pages = "55--70", abstract = "Complex repetitive scenes containing forests, foliage, grass, hair, or fur, are challenging for common modeling and rendering tools. The amount of data, the tediousness of modeling and animation tasks, and the cost of realistic rendering have caused such kind of scene to see only limited use even in high-end productions. We describe here how the use of volumetric textures is well suited to such scenes. These primitives can greatly simplify modeling and animation tasks. More importantly, they can be very efficiently rendered using ray tracing with few aliasing artifacts. The main idea, initially introduced by Kajiya and Kay [9], is to represent a pattern of 3D geometry in a reference volume, that is tiled over an underlying surface much like a regular 2D texture. In our contribution, the mapping is independent of the mesh subdivision, the pattern can contain any kind of shape, and it is prefiltered at different scales as for MIP-mapping. Although the model encoding is volumetric, the rendering method differs greatly from traditional volume rendering: A volumetric texture only exists in the neighborhood of a surface, and the repeated instances (called texels) of the reference volume are spatially deformed. Furthermore, each voxel of the reference volume contains a key feature which controls the reflectance function that represents aggregate intravoxel geometry. This allows for ray-tracing of highly complex scenes with very few aliasing artifacts, using a single ray per pixel (for the part of the scene using the volumetric texture representation). The major technical considerations of our method lie in the ray-path determination and in the specification of the reflectance function.", keywords = "volumetric textures, complex geometry, levels of detail", tvcg-abstract-url = "http://www.computer.org/tvcg/tg1998/v0055abs.htm", tvcg-pdf-url = "http://dlib.computer.org/tg/books/tg1998/pdf/v0055.pdf", who = "Havran Vlastimil: REN-0340", } @Article{Dana:1999:RTR, author = "Kristin J. Dana and Bram van Ginneken and Shree K. Nayar and Jan J. Koenderink", title = "Reflectance and texture of real-world surfaces", journal = "ACM Transactions on Graphics", volume = "18", number = "1", pages = "1--34", month = jan, year = "1999", bibdate = "Fri Jun 4 06:15:34 MDT 1999", url = "http://www.acm.org:80/pubs/citations/journals/tog/1999-18-1/p1-dana/", abstract = "In this work, we investigate the visual appearance of real-world surfaces and the dependence of appearance on the geometry of imaging conditions. We discuss a new texture representation called the BTF (bidirectional texture function) which captures the variation in texture with illumination and viewing direction. We present a BTF database with image textures from over 60 different samples, each observed with over 200 different combinations of viewing and illumination directions. We describe the methods involved in collecting the database as well as the importance and uniqueness of this database for computer graphics. A related quantity to the BTF is the familiar BRDF (bidirectional reflectance distribution function). The measurement methods involved in the BTF database are conducive to simultaneous measurement of the BRDF. Accordingly, we also present a BRDF database with reflectance measurements for over 60 different samples, each observed with over 200 different combinations of viewing and illumination directions. Both of these unique databases are publicly available and have important implications for computer graphics.", acknowledgement = ack-nhfb, keywords = "experimentation; measurement", subject = "{\bf I.2.10} Computing Methodologies, ARTIFICIAL INTELLIGENCE, Vision and Scene Understanding, Intensity, color, photometry, and thresholding. {\bf I.2.10} Computing Methodologies, ARTIFICIAL INTELLIGENCE, Vision and Scene Understanding, Texture. {\bf I.3.5} Computing Methodologies, COMPUTER GRAPHICS, Computational Geometry and Object Modeling, Physically based modeling. {\bf I.4.1} Computing Methodologies, IMAGE PROCESSING AND COMPUTER VISION, Digitization and Image Capture, Imaging geometry. {\bf I.4.1} Computing Methodologies, IMAGE PROCESSING AND COMPUTER VISION, Digitization and Image Capture, Radiometry. {\bf I.4.7} Computing Methodologies, IMAGE PROCESSING AND COMPUTER VISION, Feature Measurement, Texture. {\bf I.4.8} Computing Methodologies, IMAGE PROCESSING AND COMPUTER VISION, Scene Analysis, Photometry.", who = "Havran Vlastimil: REN-0341", } @Article{EVL-1999-109, year = "1999", title = "High-Quality Splatting on Rectilinear Grids with Efficient Culling of Occluded Voxels", url = "http://visinfo.zib.de/EVlib/Show?EVL-1999-109", author = "Klaus Mueller and Naeem Shareef and Jian Huang and Roger Crawfis", abstract = "Splatting is a popular volume rendering algorithm that pairs good image quality with an efficient volume projection scheme. The current axis-aligned sheet-buffer approach, however, bears certain inaccuracies. The effect of these is less noticeable in still images, but clearly revealed in animated viewing, where disturbing popping of object brightness occurs at certain view angle transitions. In previous work, we presented a new variant of sheet-buffered splatting in which the compositing sheets are oriented parallel to the image plane. This scheme not only eliminates the condition for popping, but also produces images of higher quality. In this paper, we summarize this new paradigm and extend it in a number of ways. We devise a new solution to render rectilinear grids of equivalent cost to the traditional approach that treats the anisotropic volume as being warped into a cubic grid. This enables us to use the usual radially symmetric kernels, which can be projected without inaccuracies. Next, current splatting approaches necessitate the projection of all voxels in the iso-interval(s), although only a subset of these voxels may eventually be visible in the final image. To eliminate these wasteful computations we propose a novel front-to-back approach that employs an occlusion map to determine if a splat contributes to the image before it is projected, thus skipping occluded splats. Additional measures are presented for further speedups. In addition, we present an efficient list-based volume traversal scheme that facilitates the quick modification of transfer functions and iso-values.", month = apr, volume = "5", keywords = "splatting, volume rendering, visualization, rectilinear grids", number = "2", journal = "IEEE Transactions on Visualization and Computer Graphics", who = "Havran Vlastimil: REN-0342", } @Article{Sun:1999:DSC, author = "Yinlong Sun and F. David Fracchia and Thomas W. Calvert and Mark S. Drew", title = "Deriving Spectra from Colors and Rendering Light Interference", journal = "IEEE Computer Graphics and Applications", volume = "19", number = "4", pages = "61--66", month = jul # "\slash " # aug, year = "1999", coden = "ICGADZ", ISSN = "0272-1716", url = "http://computer.org/cga/cg1999/g4061abs.htm; http://dlib.computer.org/cg/books/cg1999/pdf/g4061.pdf", acknowledgement = ack-nhfb, bibdate = "Fri Jul 16 12:43:27 MDT 1999", who = "Havran Vlastimil: REN-0343", } @Article{Johnson:1999:FSC, author = "Garrett M. Johnson and Mark D. Fairchild", title = "Full-Spectral Color Calculations in Realistic Image Synthesis", journal = "IEEE Computer Graphics and Applications", volume = "19", number = "4", pages = "47--53", month = jul # "\slash " # aug, year = "1999", coden = "ICGADZ", ISSN = "0272-1716", url = "http://computer.org/cga/cg1999/g4047abs.htm; http://dlib.computer.org/cg/books/cg1999/pdf/g4047.pdf", acknowledgement = ack-nhfb, bibdate = "Fri Jul 16 12:43:27 MDT 1999", who = "Havran Vlastimil: REN-0344", } @Article{Hall:1999:CSC, author = "Roy Hall", title = "Comparing Spectral Color Computation Methods", journal = "IEEE Computer Graphics and Applications", volume = "19", number = "4", pages = "36--??", month = jul # "\slash " # aug, year = "1999", coden = "ICGADZ", ISSN = "0272-1716", url = "http://computer.org/cga/cg1999/g4036abs.htm; http://dlib.computer.org/cg/books/cg1999/pdf/g4036.pdf", acknowledgement = ack-nhfb, bibdate = "Fri Jul 16 12:43:27 MDT 1999", who = "Havran Vlastimil: REN-0345", } @Article{Cabral:1987:BRF, author = "Brian Cabral and Nelson Max and Rebecca Springmeyer", title = "Bidirectional Reflection Functions from Surface Bump Maps", journal = "Computer Graphics", volume = "21", number = "4", pages = "273--281", month = jul, year = "1987", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 18:47:07 MDT 1999", url = "http://www.acm.org:80/pubs/citations/proceedings/graph/37401/p273-cabral/", acknowledgement = ack-nhfb, conference = "held in Anaheim, California; 27--31 July 1987", keywords = "design; theory; reflectance, shading, bidirectional reflection function, lighting model, horizon mapping, spherical harmonics, environmental illumination, shading bump", subject = "{\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Color, shading, shadowing, and texture.", who = "Havran Vlastimil: REN-0346", } @InProceedings{Myszkowski:rend99-5, booktitle = "Rendering Techniques '99", year = "1999", editor = "Dani Lischinski and Greg Ward Larson", series = "Eurographics", publisher = "Springer-Verlag Wien New York", author = "Karol Myszkowski and Przemyslaw Rokita and Takehiro Tawara", title = "Perceptually-Informed Accelerated Rendering of High Quality Walkthrough Sequences", pages = "5--18", who = "Havran Vlastimil: REN-0347", } @Article{Pattanaik:1998:MMA, author = "Sumanta N. Pattanaik and James A. Ferwerda and Mark D. Fairchild and Donald P. Greenberg", title = "A Multiscale Model of Adaptation and Spatial Vision for Realistic Image Display", journal = "Computer Graphics", volume = "32", number = "{Annual Conference Series}", pages = "287--298", month = aug, year = "1998", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 18:57:39 MDT 1999", url = "http://www.acm.org:80/pubs/citations/proceedings/graph/280814/p287-pattanaik/; http://www.graphics.cornell.edu/~jaf/home/research.html; http://www.graphics.cornell.edu/~jaf/home/research.html; http://w3imagis.imag.fr/Membres/Frederic.Durand/Book/sig98.html", acknowledgement = ack-nhfb, keywords = "algorithms; human factors", subject = "{\bf I.3.0} Computing Methodologies, COMPUTER GRAPHICS, General. {\bf I.3.3} Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation, Display algorithms. {\bf I.3.8} Computing Methodologies, COMPUTER GRAPHICS, Applications. {\bf I.3.3} Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation, Viewing algorithms. {\bf H.1.2} Information Systems, MODELS AND PRINCIPLES, User/Machine Systems, Human factors.", who = "Havran Vlastimil: REN-0348", } @Article{Greene:1994:EAR, author = "N. Greene and M. Kass", title = "Error-Bounded Antialiased Rendering of Complex Environments", journal = "Computer Graphics", volume = "28", number = "{Annual Conference Series}", pages = "59--66", month = Jul, year = "1994", coden = "CGRADI", ISSN = "0097-8930", bibdate = "Thu Feb 6 08:30:20 MST 1997", acknowledgement = ack-nhfb, keywords = "ACM; computer graphics; SIGGRAPH", who = "Havran Vlastimil: REN-0349", } @InProceedings{Rohlf:1994:IPH, author = "John Rohlf and James Helman", booktitle = "Proceedings of SIGGRAPH '94", title = "{IRIS} Performer: {A} High Performance Multiprocessing Toolkit for Real--{T}ime 3{D} Graphics", pages = "381--395", month = Jul, year = "1994", who = "Havran Vlastimil: REN-0350", } @Article{Reed:1994:VSL, author = "Todd Reed and Brian Wyvill", title = "Visual Simulation of Lightning", journal = "Computer Graphics", volume = "28", number = "{Annual Conference Series}", pages = "359--364", month = Jul, year = "1994", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 18:51:53 MDT 1999", url = "http://www.acm.org:80/pubs/citations/proceedings/graph/192161/p359-reed/", abstract = "A method for rendering lightning using conventional raytracing techniques is discussed. The approach taken is directed at producing aesthetic images for animation, rather than providing a realistic physically based model for rendering. A particle system is used to generate the path of the lightning channel, and subsequently to animate the lightning. A technique, using implicit surfaces, is introduced for illuminating objects struck by lightning.", acknowledgement = ack-nhfb, keywords = "theory; ACM; computer graphics; SIGGRAPH", subject = "{\bf I.3.3} Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation. {\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Animation.", who = "Havran Vlastimil: REN-0351", } @Article{Bao:1999:NLV, author = "Hujun Bao and Li Chen and Jianguo Ying and Qunsheng Peng", title = "Non-linear view interpolation", journal = "The Journal of Visualization and Computer Animation", volume = "10", number = "4", pages = "233--241", year = "1999", coden = "JVCAEO", ISSN = "1049-8907", bibdate = "Sun Oct 29 13:23:28 MST 2000", url = "http://www3.interscience.wiley.com/cgi-bin/fulltext?ID=68501008&;PLACEBO=IE.pdf; http://www3.interscience.wiley.com/cgi-bin/abstract/68501008/START", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0352", } @InProceedings{Vilaplana:1989:ECC, author = "J. Vilaplana and X. Pueyo", title = "Exploiting coherence for clipping and view transformation in radiosity algorithm", booktitle = "Eurographics Workshop on Photosimulation, Realism and Physics in Computer Graphics", year = "1989", conference = "held in Rennes, France; 11-13 June 1989", keywords = "form-factor calculations", annote = "Present some techniques which take advantage of several kinds of coherence in order to speed up the clipping and view transformation steps involved in form-factor calculation using the hemicube approach.", who = "Havran Vlastimil: REN-0353", } @Article{Keating:1999:ESA, author = "Brett Keating", title = "Efficient Shadow Antialiasing Using an {$A$}-Buffer", journal = "Journal of Graphics Tools: JGT", volume = "4", number = "3", pages = "23--33", year = "1999", ISSN = "1086-7651", bibdate = "Thu Oct 12 17:08:13 2000", url = "http://www.acm.org/jgt/papers/Keating99/", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0354", } @Article{McCormick:1999:DAB, author = "Patrick S. McCormick and Charles Hansen and Edward Angel", title = "The Deferred Accumulation Buffer", journal = "Journal of Graphics Tools: JGT", volume = "4", number = "3", pages = "35--46", year = "1999", ISSN = "1086-7651", bibdate = "Thu Oct 12 17:08:13 2000", url = "http://www.acm.org/jgt/papers/McCormickHansenAngel99/", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0355", } @Article{Max:1999:WCV, author = "Nelson Max", title = "Weights for Computing Vertex Normals from Facet Normals", journal = "Journal of Graphics Tools: JGT", volume = "4", number = "2", pages = "1--6", year = "1999", ISSN = "1086-7651", bibdate = "Thu Oct 12 17:08:13 2000", url = "http://www.acm.org/jgt/papers/Max99/", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0356", } @Article{Schmalstieg:1999:FPA, author = "Dieter Schmalstieg and Robert F. Tobler", title = "Fast Projected Area Computation for Three-Dimensional Bounding Boxes", journal = "Journal of Graphics Tools: JGT", volume = "4", number = "2", pages = "37--43", year = "1999", ISSN = "1086-7651", bibdate = "Thu Oct 12 17:08:13 2000", url = "http://www.acm.org/jgt/papers/SchmalstiegTobler99/", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0357", } @Article{Zhang:1999:DIB, author = "Hansong Zhang", title = "A Derivation of Image-Based Rendering for Conventional Three-Dimensional Graphics", journal = "Journal of Graphics Tools: JGT", volume = "4", number = "2", pages = "27--36", year = "1999", ISSN = "1086-7651", bibdate = "Thu Oct 12 17:08:13 2000", url = "http://www.acm.org/jgt/papers/Zhang99/", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0358", } @Article{Robertson:1989:STR, author = "Philip K. Robertson", title = "Spatial Transformations for Rapid Scan-Line Surface Shadowing", journal = "IEEE Computer Graphics and Applications", volume = "9", number = "2", pages = "30--38", month = mar, year = "1989", coden = "ICGADZ", ISSN = "0272-1716", bibdate = "Sat Jan 25 06:42:48 MST 1997", acknowledgement = ack-nhfb, classification = "723; 741", journalabr = "IEEE Comput Graphics Appl", keywords = "Aliasing; Computer Graphics; Hidden Surfaces; Image Processing; Mathematical Techniques --- Interpolation; Spatial Transformations; surface shadowing; Surface Shadowing; Three Dimensional Graphics", who = "Havran Vlastimil: REN-0359", } @Article{Nakamae:1989:CIA, author = "Eihachiro Nakamae and Takao Ishizaki and Tomoyuki Nishita and Shinichi Takita", title = "Compositing {3D} images with antialiasing and various shading effects", journal = "IEEE Computer Graphics and Applications", volume = "9", number = "2", pages = "21--29", month = mar, year = "1989", coden = "ICGADZ", ISSN = "0272-1716", bibdate = "Sat Jan 25 06:42:48 MST 1997", acknowledgement = ack-nhfb, classification = "723; 741", journalabr = "IEEE Comput Graphics Appl", keywords = "3D Image Composition; Antialiased Images; compositing; Computer Graphics; Image Processing; Image Shading Effects; Multiscanning Method; Texture Mapping; Three Dimensional Graphics", xxtitle = "Compositing {3D} Images with Antialiasing and Various Effects", xxlibnote = "Volume missing from U of Utah library.", who = "Havran Vlastimil: REN-0360", } @Article{Rushmeier:1995:VRP, author = "Holly Rushmeier and Anthony Hamins and Mun Young Choi", title = "Volume rendering of pool fire data", journal = "IEEE Computer Graphics and Applications", volume = "15", number = "4", pages = "62--67", month = jul, year = "1995", coden = "ICGADZ", ISSN = "0272-1716", bibdate = "Sat Jan 25 06:42:48 MST 1997", acknowledgement = ack-nhfb, affiliation = "Natl Inst of Standards and Technology", affiliationaddress = "Gaithersburg, MD, USA", classification = "723.5; 914.2; 921.2; 921.6", journalabr = "IEEE Comput Graphics Appl", keywords = "Calculations; Computer graphics; Fires; Imaging techniques; Integration; Line integration; Mathematical models; Pool fires; Radiation effects; Ray casting; Two dimensional; Visualization; Volume rendering", who = "Havran Vlastimil: REN-0361", } @InProceedings{Oren:1994:GLR, author = "Michael Oren and Shree K. Nayar", editor = "Andrew Glassner", booktitle = "Proceedings of SIGGRAPH '94 (Orlando, Florida, July 24--29, 1994)", title = "Generalization of Lambert's Reflectance Model", organization = "ACM SIGGRAPH", publisher = "ACM Press", pages = "239--246", month = jul, year = "1994", note = "ISBN 0-89791-667-0", series = "Computer Graphics Proceedings, Annual Conference Series", who = "Havran Vlastimil: REN-0362", } @Article{Nishita:1994:MDO, author = "Tomoyuki Nishita and Eihachiro Nakamae", title = "Method of Displaying Optical Effects within Water using Accumulation Buffer", journal = "Computer Graphics", volume = "28", number = "{Annual Conference Series}", pages = "373--379", month = jul, year = "1994", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 18:51:53 MDT 1999", url = "http://www.acm.org:80/pubs/citations/proceedings/graph/192161/p373-nishita/", abstract = "A precise shading model is required to display realistic images. Recently research on global illumination has been widespread. In global illumination, problems of diffuse reflection have been solved fairly well, but some optical problems after specular reflection and refraction still remain. Some natural phenomena stand out in reflected/refracted light from the wave surface of water. Refracted light from water surface converges and diverges, and creates shafts of light due to scattered light from particles. The color of the water is influenced by scattering/absorption effects of water molecules and suspensions. For these effects, the intensity and direction of incident light to particles plays an important role, and it is difficult to calculate them in conventional ray-tracing because light refracts when passing through waves. Therefore, the pre-processing tracing from light sources is necessary. The method proposed here can effectively calculate optical effects, shaft of light, caustics, and color of the water without such pre-processing by using a scanline Z-buffer and accumulation buffer.", acknowledgement = ack-nhfb, keywords = "ACM; computer graphics; SIGGRAPH; theory", subject = "{\bf I.3.3} Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation. {\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism.", who = "Havran Vlastimil: REN-0363", } @PhdThesis{BekaertThesis, author = "P. Bekaert", title = "Hierarchical and Stochastic Algorithms for Radiosity", school = "Department of Computer Science, Katholieke Universiteit Leuven", year = "1999", who = "Havran Vlastimil: REN-0364", } @Article{Suykens:1999:WMM, author = "Frank Suykens and Yves D. Willems", title = "Weighted Multipass Methods for Global Illumination", volume = "18", number = "3", journal = "Computer Graphics Forum", month = sep, year = "1999", publisher = "Blackwell Publishers", pages = "209--220", note = "{ISSN} 1067-7055", annote = "In multipass rendering, care has to be taken to include all light transport only once in the final solution. Therefore the different methods in current multipass configurations handle a perfectly disjunct part of the light transport. In this paper a Monte Carlo variance reduction technique is presented that probabilistically weights overlapping transport between different methods. A good heuristic for the weights is derived so that strengths of the respective methods are retained. The technique is applied to a combination of radiosity and bidirectional path tracing and significant improvement is obtained over the non-weighted combination. This method promises to be a very useful extension to other multipass algorithms as well.", who = "Havran Vlastimil: REN-0365", } @Article{Stamminger00-EGGII*, author = "Marc Stamminger and Annette Scheel and Xavier Granier and Frederic Perez-Cazorla and George Drettakis and Francois Sillion", year = "2000", title = "Efficient Glossy Global Illumination with Interactive Viewing", journal = "Computer Graphics Forum", volume = "19", number = "1", pages = "13--25", who = "Havran Vlastimil: REN-0366", } @Article{Hasenfratz:1999:APA, author = "Jean-Marc Hasenfratz and Cyrille Damez and Fran{\c{c}}ois Sillion and George Drettakis", title = "A Practical Analysis of Clustering Strategies for Hierarchical Radiosity", volume = "18", number = "3", journal = "Computer Graphics Forum", month = sep, year = "1999", publisher = "Blackwell Publishers", pages = "221--232", note = "{ISSN} 1067-7055", annote = "The calculation of radiant energy balance in complex scenes has been made possible by hierarchical radiosity methods based on clustering mechanisms. Although clustering offers an elegant theoretical solution by reducing the asymptotic complexity of the algorithm, its practical use raises many difficulties, and may result in image artifacts or unexpected behavior. This paper proposes a detailed analysis of the expectations placed on clustering and compares the relative merits of existing, as well as newly introduced, clustering algorithms. This comparison starts from the precise definition of various clustering strategies based on a taxonomy of data structures and construction algorithms, and proceeds to an experimental study of the clustering behavior for real-world scenes. Interestingly, we observe that for some scenes light is difficult to simulate even with clustering. Our results lead to a series of observations characterizing the adequacy of clustering methods for meeting such diverse goals as progressive solution improvement, efficient ray casting acceleration, and faithful representation of object density for approximate visibility calculations.", who = "Havran Vlastimil: REN-0367", } @Article{Heckbert:1990:ART, author = "Paul S. Heckbert", title = "Adaptive Radiosity Textures for Bidirectional Ray Tracing", journal = "Computer Graphics", volume = "24", number = "4", pages = "145--154", month = aug, year = "1990", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", bibdate = "Mon Oct 4 18:49:03 MDT 1999", url = "http://www.acm.org:80/pubs/citations/proceedings/graph/97879/p145-heckbert/", acknowledgement = ack-nhfb, annote = "We present a rendering method designed to provide accurate, general simulation of global illumination for realistic image synthesis. Separating surface interaction into diffuse plus specular, we compute the specular component on the fly, as in ray tracing, and store the diffuse component (the radiosity) for later-reuse, similar to a radiosity algorithm. Radiosities are stored in {\em adaptive radiosity textures (rexes)} that record the pattern of light and shadow on every diffuse surface in the scene. They adaptively subdivide themselves to the appropriate level of detail for the picture being made, resolving sharp shadow edges automatically. \\ We use a three-pass, bidirectional ray tracing algorithm that traces rays from both the lights and the eye. The ``size pass'' records visibility information on diffuse surfaces; the ``light pass'' progressively traces rays from lights and bright surfaces to deposit photons on diffuse surfaces to construct the radiosity textures; and the ``eye pass'' traces rays from the eye, collecting light from diffuse surfaces to make a picture.", conference = "held in Dallas, Texas; 6--10 August 1990", keywords = "algorithms; global illumination, density estimation, texture mapping, quadtree, adaptive subdivision, sampling", subject = "{\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Visible line/surface algorithms. {\bf I.3.5} Computing Methodologies, COMPUTER GRAPHICS, Computational Geometry and Object Modeling, Curve, surface, solid, and object representations. {\bf I.3.3} Computing Methodologies, COMPUTER GRAPHICS, Picture/Image Generation, Display algorithms. {\bf I.3.7} Computing Methodologies, COMPUTER GRAPHICS, Three-Dimensional Graphics and Realism, Color, shading, shadowing, and texture.", who = "Havran Vlastimil: REN-0368", } @InProceedings{EVL-1999-402, pages = "171--194", year = "1999", title = "Anisotropic diffusion for Monte Carlo noise reduction", author = "Michael D. McCool", url = "http://visinfo.zib.de/EVlib/Show?EVL-1999-402", abstract = "Monte Carlo sampling can be used to estimate solutions to global light transport and other rendering problems. However, a large number of observations may be needed to reduce the variance to acceptable levels. Rather than computing more observations within each pixel, if spatial coherence exists in image space it can be used to reduce visual error by averaging estimators in adjacent pixels. Anisotropic diffusion is a space-variant noise reduction technique that can selectively preserve texture, edges, and other details using a map of image coherence. The coherence map can be estimated from depth and normal information as well as interpixel color distance. Incremental estimation of the reduction in variance, in conjunction with statistical normalization of interpixel color distances, yields an energy-preserving algorithm that converges to a spatially nonconstant steady state.", volume = "18 (2)", keywords = "Monte Carlo methods, anisotropic diffusion, global illumination, image processing, image synthesis, light transport, noise reduction, space-variant filtering", booktitle = "ACM Transactions on Graphics", who = "Havran Vlastimil: REN-0369", } @Article{Sbert:1997:OSS, author = "Mateu Sbert", title = "Optimal Source Selection in Shooting Random Walk {Monte Carlo} Radiosity", journal = "Com{\-}pu{\-}ter Graphics Forum", volume = "16", number = "3", pages = "C301--C308", month = sep # " 4--8", year = "1997", coden = "CGFODY", ISSN = "0167-7055", bibdate = "Tue Mar 17 15:44:38 MST 1998", acknowledgement = ack-nhfb, affiliation = "Universitat de Girona", affiliationaddress = "Girona, Spain", classification = "723.5; 741.1; 921.5; 922.1; 922.2", journalabr = "Comput Graphics Forum", keywords = "Computer graphics; Computer simulation; Lighting; Monte Carlo methods; Optimization; Probability; Radiosity; Rendering method", who = "Havran Vlastimil: REN-0370", } @Article{Bishop:1998:DPG, author = "Lars Bishop and Dave Eberly and Turner Whitted and Mark Finch and Michael Shantz", title = "Designing a {PC} Game Engine", journal = "IEEE Computer Graphics and Applications", volume = "18", number = "1", pages = "46--53", month = jan # "\slash " # feb, year = "1998", coden = "ICGADZ", ISSN = "0272-1716", bibdate = "Thu Feb 26 12:06:17 MST 1998", url = "http://computer.org/cga/cg1998/g1046abs.htm; http://dlib.computer.org/cg/books/cg1998/pdf/g1046.pdf", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0371", } @Article{Zaninetti:1999:AAM, author = "Jacques Zaninetti and Pierre Boy and Bernard Peroche", title = "An Adaptive Method for Area Light Sources and Daylight in Ray Tracing", volume = "18", number = "3", journal = "Computer Graphics Forum", month = sep, year = "1999", publisher = "Blackwell Publishers", pages = "139--150", note = "{ISSN} 1067-7055", annote = "This paper proposes an adaptive method for taking both (diffuse or not) planar area light sources and daylight into account in a ray tracing environment which separates the calculation of direct and indirect illumination. In a given point, direct illumination due to a light source or to natural light is represented by a vector, the direction and magnitude of which being computed through an adaptive area approach, which is driven by the solid angle according to which a part of the source is seen from the current point. In the case of unoccluded diffuse polygonal sources, an analytical formula is used which gives an exact value for this vector.", who = "Havran Vlastimil: REN-0372", } @Article{Wang:1999:MSR, author = "Changyaw Wang and Kelvin Sung", title = "Multi-Stage {$N$}-rooks Sampling Method", journal = "Journal of Graphics Tools: JGT", volume = "4", number = "1", pages = "39--47", year = "1999", ISSN = "1086-7651", bibdate = "Thu Oct 12 17:08:13 2000", url = "http://www.acm.org/jgt/papers/WangSung99/", acknowledgement = ack-nhfb, who = "Havran Vlastimil: REN-0373", } @InProceedings{EVL-2001-54, year = "2001", title = "Enhancements to Directional Coherence Maps", author = "Annette Scheel and Marc Stamminger and J{\"o}rg P{\"u}tz and Hans-Peter Seidel", url = "http://visinfo.zib.de/EVlib/Show?EVL-2001-54", abstract = "Directional Coherence Maps as proposed by Guo in '98 are a very efficient acceleration technique for ray tracing based global illumination renderers. It vastly reduces the number of pixels which have to be computed exactly by identifying regions which are suitable for interpolation. By using oriented finite elements for interpolation, the sampling density can be kept low for large regions of the target image. In this paper we describe extensions of the method. An improved object test is presented which prevents that small objects are missed. Additionally, it is shown how to handle textures efficiently, which was not possible with the original approach.", editor = "V. Skala", keywords = "Directional Coherence Maps, Rendering, Interpolation.", booktitle = "WSCG 2001 Conference Proceedings", who = "Havran Vlastimil: REN-0374", } @InProceedings{Fernando:2001:ASM, author = "Randima Fernando and Sebastian Fernandez and Kavita Bala and Donald P. Greenberg", title = "Adaptive Shadow Maps", booktitle = "SIGGRAPH 2001 Conference Proceedings", editor = "Eugene Fiume", organization = "ACM SIGGRAPH", conference = "Los Angeles, CA, August 12-17, 2001", series = "Annual Conference Series", month = aug, year = "2001", pages = "387--390", publisher = "Addison Wesley", keywords = "Rendering, Shadow Algorithms.", abstract = "Shadow maps provide a fast and convenient method of identifying shadows in scenes but can introduce aliasing. This paper introduces the Adaptive Shadow Map (ASM) as a solution to this problem. An ASM removes aliasing by resolving pixel size mismatches between the eye view and the light source view. It achieves this goal by storing the light source view (i.e., the shadow map for the light source) as a hierarchical grid structure as opposed to the conventional flat structure. As pixels are transformed from the eye view to the light source view, the ASM is refined to create higher-resolution pieces of the shadow map when needed. This is done by evaluating the contributions of shadow map pixels to the overall image quality. The improvement process is view-driven, progressive, and confined to a user-specifiable memory footprint. We show that ASMs enable dramatic improvements in shadow quality while maintaining interactive rates.", who = "Havran Vlastimil: REN-0375", URL = "http://visinfo.zib.de/EVlib/Show?EVL-2001-128", } @Article{Heckbert:1990:ART, author = "Paul S. Heckbert", editor = "Forest Baskett", title = "Adaptive Radiosity Textures for Bidirectional Ray Tracing", journal = "Computer Graphics", volume = "24", number = "4", pages = "145--154", month = Aug, year = "1990", coden = "CGRADI, CPGPBZ", ISSN = "0097-8930", annote = "We present a rendering method designed to provide accurate, general simulation of global illumination for realistic image synthesis. Separating surface interaction into diffuse plus specular, we compute the specular component on the fly, as in ray tracing, and store the diffuse component (the radiosity) for later-reuse, similar to a radiosity algorithm. Radiosities are stored in {\em adaptive radiosity textures (rexes)} that record the pattern of light and shadow on every diffuse surface in the scene. They adaptively subdivide themselves to the appropriate level of detail for the picture being made, resolving sharp shadow edges automatically. \\ We use a three-pass, bidirectional ray tracing algorithm that traces rays from both the lights and the eye. The `size pass'' records visibility information on diffuse surfaces; the `light pass'' progressively traces rays from lights and bright surfaces to deposit photons on diffuse surfaces to construct the radiosity textures; and the `eye pass'' traces rays from the eye, collecting light from diffuse surfaces to make a picture.", conference = "held in Dallas, Texas; 6--10 August 1990", keywords = "global illumination, density estimation, texture mapping, quadtree, adaptive subdivision, sampling", } @InBook{Scheel01-TFGR*, author = "Annette Scheel and Marc Stamminger and Hans-Peter Seidel", year = "2001", title = "Thrifty Final Gather Radiosity", booktitle = "Rendering Techniques 2001 (Proceedings of the Twelfth Eurographics Workshop on Rendering)", note = "To appear", publisher = "Springer Wien", address = "New York, NY", who = "Havran Vlastimil: REN-0377", } @InBook{Stark01-RTIAS, author = "Michael M. Stark and Richard F. Riesenfeld", year = "2001", title = "Reflected and Transmitted Irradiance from Area Sources Using Vertex Tracing", booktitle = "Rendering Techniques 2001 (Proceedings of the Twelfth Eurographics Workshop on Rendering)", note = "To appear", publisher = "Springer Wien", address = "New York, NY", who = "Havran Vlastimil: REN-0378", } @InBook{Chen01-SNLPL, author = "Min Chen and James Arvo", year = "2001", title = "Simulating Non-Lambertian Phenomena Involving Linearly-Varying Luminaires", booktitle = "Rendering Techniques 2001 (Proceedings of the Twelfth Eurographics Workshop on Rendering)", note = "To appear", publisher = "Springer Wien", address = "New York, NY", who = "Havran Vlastimil: REN-0379", } @InProceedings{Dumont:2001:PBT, author = "Reynald Dumont and Fabio Pellacini and James A. Ferwerda", title = "A Perceptually-Based Texture Caching Algorithm for Hardware-Based Rendering", booktitle = "Eurographics Workshop on Rendering", conference = "held in London, England; 25-27 June 2001", year = "2001", abstract = "The performance of hardware-based interactive rendering systems is often constrained by polygon fill rates and texture map capacity, rather than polygon count alone. We present a new software texture caching algorithm that optimizes the use of texture memory in current graphics hardware by dynamically allocating more memory to the textures that have the greatest visual importance in the scene. The algorithm employs a resource allocation scheme that decides which resolution to use for each texture in board memory. The allocation scheme estimates the visual importance of textures using a perceptually-based metric that takes into account view point and vertex illumination as well as texture contrast and frequency content. This approach provides high frame rates while maximizing image quality.", who = "Havran Vlastimil: REN-0380", } @INPROCEEDINGS{Herf96sketch, AUTHOR={Michael Herf and Paul S. Heckbert}, TITLE={Fast Soft Shadows}, BOOKTITLE={Visual Proceedings, SIGGRAPH 96}, MONTH={Aug.}, YEAR={1996}, PAGES={145}, KEYWORDS={penumbra, graphics workstation, accumulation buffer, texture mapping}, } @TECHREPORT{Heckbert97shadow, AUTHOR={Paul S. Heckbert and Michael Herf}, TITLE={Simulating Soft Shadows with Graphics Hardware}, INSTITUTION={CS Dept., Carnegie Mellon U.}, MONTH={Jan.}, YEAR=1997, NUMBER={CMU-CS-97-104}, note ={CMU-CS-97-104, http://www.cs.cmu.edu/~ph}, keywords ={penumbra, texture mapping, graphics workstation, interaction, real-time, SGI Reality Engine}, who = {Havran Vlastimil: REN-0060}, } @MISC{Herf97shadow, AUTHOR={Michael Herf and Paul S. Heckbert}, TITLE={Soft Shadow Textures}, NOTE={Submitted for publication}, YEAR=1997, } @TECHREPORT{Herf97thesis, AUTHOR={Michael Herf}, TITLE={Efficient Generation of Soft Shadow Textures}, INSTITUTION={CS Dept., Carnegie Mellon U.}, MONTH={May}, YEAR=1997, NUMBER={CMU-CS-97-138}, KEYWORDS={penumbra, texture mapping, interaction, real-time, edge flag fill, PC}, } @INPROCEEDINGS{Nishita83, AUTHOR={Tomoyuki Nishita and Eihachiro Nakamae}, TITLE={Half-Tone Representation of 3-{D} Objects Illuminated by Area Sources or Polyhedron Sources}, BOOKTITLE={COMPSAC '83, Proc. IEEE 7th Intl. Comp. Soft. and Applications Conf.}, MONTH={Nov.}, YEAR={1983}, PAGES={237-242}, KEYWORDS={shading, shadow, penumbra}, } @INPROCEEDINGS{Nakamae84, AUTHOR={Eihachiro Nakamae and Hideo Yamashita and Kohichi Harada and Tomoyuki Nishita}, TITLE={Computer Graphics for Visualizing Simulation Results}, BOOKTITLE={Eurographics '84}, MONTH={Sept.}, YEAR={1984}, PAGES={419-432}, KEYWORDS={shadow, penumbra}, } @ARTICLE{Nishita85, AUTHOR={Tomoyuki Nishita and Eihachiro Nakamae}, TITLE={Continuous Tone Representation of 3-{D} Objects Taking Account of Shadows and Interreflection}, JOURNAL={Computer Graphics (SIGGRAPH '85 Proceedings)}, VOLUME={19}, NUMBER={3}, MONTH={July}, YEAR={1985}, PAGES={23-30}, KEYWORDS={shading, penumbra, radiosity}, } @TECHREPORT{Campbell91tr1, AUTHOR={Campbell, III, A. T. and Donald S. Fussell}, TITLE={Analytic Illumination with Polygonal Light Sources}, NUMBER={TR-91-15}, INSTITUTION={CS Dept, U of Texas at Austin}, MONTH={April}, YEAR={1991}, KEYWORDS={shadow}, ANNOTE={object space shadow algorithm, like Nishita83}, } @TECHREPORT{Campbell91tr2, AUTHOR={Campbell, III, A. T. and Donald S. Fussell}, TITLE={An Analytic Approach to Illumination with Area Light Sources}, NUMBER={TR-91-25}, INSTITUTION={CS Dept, U of Texas at Austin}, MONTH={August}, YEAR={1991}, KEYWORDS={shadow}, ANNOTE={An early draft of chapters 5 and 6 of his dissertation}, } @MastersThesis{Woo89, author = "Andrew C. H. Woo", title = "Accelerators for Shadow Determination in Ray Tracing", pages = "136", month = feb, year = "1989", school = "Department of Computer Science, University of Toronto", keywords = "ray tracing, regular grid subdivision, voxel, shadow, efficiency, cull", } @InProceedings{Woo90voxel, author = "Andrew Woo and John Amanatides", title = "Voxel Occlusion Testing: {A} Shadow Determination Accelerator for Ray Tracing", pages = "213--220", booktitle = "Proceedings of Graphics Interface '90", year = "1990", month = may, conference = "Halifax, Canada", keywords = "grid, intersection culling, occlusion, penumbra, ray tracing, shadows, umbra, voxel traversal", abstract = " A shadow determination accelerator for ray tracing is presented. It is built on top of the uniform voxel traversal grid structure. The accelerator proves to be rather efficient, requires little additional memory and the worst case scenario per shadow determination just reduces down to traditional voxel traversal. It can also be extended to model linear, area lights, as well as atmospheric shadows. ", } @ARTICLE{Woo90survey, AUTHOR={Andrew Woo and Pierre Poulin and Alain Fournier}, TITLE={A Survey of Shadow Algorithms}, JOURNAL={IEEE Computer Graphics and Applications}, VOLUME={10}, NUMBER={6}, MONTH={Nov.}, YEAR={1990}, PAGES={13-32}, ABSTRACT={ Essential to realistic and visually appealing images, shadows are difficult to compute in most display environments. This survey characterizes the various types of shadows. It also describes most existing shadow algorithms and discusses their complexities, advantages, and shortcomings. We examine hard shadows, soft shadows, shadows of transparent objects, and shadows for complex modeling primitives. For each type, we examine shadow algorithms within various rendering techniques. This survey attempts to provide readers with enough background and insight on the various methods to allow them to choose the algorithm best suited to their needs. We also hope that our analysis will help identify the areas that need more research and point to possible solutions. }, } @INCOLLECTION{Woo92, AUTHOR={Andrew Woo}, TITLE={The Shadow Depth Map Revisited}, BOOKTITLE={Graphics Gems III}, EDITOR={David Kirk}, PUBLISHER={Academic Press}, ADDRESS={Boston, MA}, YEAR={1992}, PAGES={338-342, 582}, KEYWORDS={z-buffer shadow, aliasing}, annote = "includes code", } @Article{Woo93, author = "Andrew Woo", title = "Efficient shadow computations in ray tracing", journal = "IEEE Computer Graphics and Applications", pages = "78--83", volume = "13", number = "5", month = sep, year = "1993", annote = "Two simple techniques speed up shadows in ray tracing. Both require little memory and easily extend to other ray types. One can also benefit radiosity-related computations.", } @InProceedings{Poulin90shadow, author = "Pierre Poulin and John Amanatides", title = "Shading and Shadowing with Linear Light Sources", pages = "377--386", booktitle = "Eurographics '90", year = "1990", month = sep, publisher = "North-Holland", keywords = "soft shadow", } @ARTICLE{Bao93, AUTHOR={Hujun Bao and Qunsheng Peng}, TITLE={Shading Models for Linear and Area Light Sources}, JOURNAL={Computers and Graphics}, VOLUME={17}, NUMBER={2}, YEAR={1993}, PAGES={137-145}, KEYWORDS={shadow, penumbra}, } @INPROCEEDINGS{Vedel93, AUTHOR={Christophe Vedel}, TITLE={Computing Illumination from Area Light Sources by Approximate Contour Integration}, BOOKTITLE={Proc. Graphics Interface '93}, PUBLISHER={Canadian Inf. Proc. Soc.}, ADDRESS={Toronto, Ontario}, MONTH={May}, YEAR={1993}, PAGES={237-244}, KEYWORDS={shadow, penumbra}, } @ARTICLE{Chin90, AUTHOR={Norman Chin and Steven Feiner}, TITLE={Near Real-Time Shadow Generation Using {BSP} Trees}, JOURNAL={Computer Graphics (SIGGRAPH '90 Proceedings)}, VOLUME={24}, NUMBER={4}, MONTH={Aug.}, YEAR={1990}, PAGES={99-106}, } @INPROCEEDINGS{Chin92, AUTHOR={Norman Chin and Steven Feiner}, TITLE={Fast Object-Precision Shadow Generation for Area Light Sources using {BSP} Trees}, BOOKTITLE={1992 Symp. on Interactive 3D Graphics}, PUBLISHER={ACM SIGGRAPH}, MONTH={Mar.}, YEAR={1992}, PAGES={21-30}, } @TechReport{Chin90, author = "Norman Chin", title = "Near Real-Time Object-Precision Shadow Generation Using {BSP} Trees---Master Thesis", institution = "University of Columbia", number = "CUCS-068-90", year = "1990", abstract = "This master's thesis describes an object-precision shadow generation algorithm for static polygonal environments illuminated by movable point light sources. The algorithm can be easily implemented on any graphics system that provides fast polygon scan-conversion and achieves near real-time performance for environments of modest size. It combines elements of two kinds of current shadow generation algorithms: two-pass object-precision approaches and shadow volume approaches. This algorithm is an example of a new paradigm for shadow generation. Previously, the shadowing the problem can be viewed as solving the visible-surface problem from the point of view of a point light source. Another way to look at them, is from a geometric modeling point of view. By creating shadow volumes and then classifying polygons analytically against it, shadows can also be computed. Several optimizations are discussed. A way of reducing the amount of polygon fragmentation is shown by coalescing the fragments on the fly. Two methods of parallelizing the algorithm is presented. One method determines shadow fragments in parallel for a given light source. And more importantly, a method to handle shadowing from multiple point light sources independent of the number of light sources on workstations with alpha blending capabilities is described. Finally this algorithm has been extended to generate soft shadows by modeling area light sources. By initially meshing the scene into penumbra/umbra regions, and by adaptively meshing the penumbra regions with concentric contours similiar in shape to the outer penumbra region and by applying the point light source shadow algorithm to compute what fraction of an area light source is seen by a point to be rendered in the interior of the penumbra region and finally, by smooth shading the results, fuzzy shadows can be rendered. The future work section talks about combining all of the above to produce higher quality shadows in radiosity environments through adaptive meshing of the scene along penumbra/umbra boundaries via the area light source shadow algorithm and through analytically computing form-factors via the point light source shadow algorithm. Pseudocode is provided along with pictures and timings from an interactive implementation.", } @ARTICLE{Fuchs80, AUTHOR={Henry Fuchs and Zvi M. Kedem and Bruce F. Naylor}, TITLE={On Visible Surface Generation by A Priori Tree Structures}, JOURNAL={Computer Graphics (SIGGRAPH '80 Proceedings)}, VOLUME={14}, NUMBER={3}, MONTH={July}, YEAR={1980}, PAGES={124-133}, KEYWORDS={hidden surface, BSP tree}, } @TECHREPORT{Brotman84ms, author={Lynne Shapiro Brotman}, title={A method for generating shadows with an umbra and penumbra in computer generated images}, institution={Dept. of Computer \& Information Science, U. of Pennsylvania}, year=1984, keywords={soft shadow}, } @ARTICLE{Brotman84, AUTHOR={Lynne Shapiro Brotman and Norman I. Badler}, TITLE={Generating Soft Shadows with a Depth Buffer Algorithm}, JOURNAL={IEEE Computer Graphics and Applications}, VOLUME={4}, NUMBER={10}, MONTH={Oct.}, YEAR={1984}, PAGES={5-24}, } @InProceedings{Crow:1977:SAC, author = "Franklin C. Crow", title = "Shadow Algorithms for Computer Graphics", pages = "242--248", journal = "Computer Graphics (SIGGRAPH '77 Proceedings)", BOOKTITLE = "Proceedings of the 4th annual conference on Computer graphics and interactive techniques", volume = "11", year = "1977", month = jul, editor = "James George", conference = "held in San Jose, California; 20 -- 22 July 1977", keywords = "shadow", LOCATION = {San Jose, California}, DOI = {http://doi.acm.org/10.1145/563858.563901}, PUBLISHER = {ACM Press}, PDF = {pdf/p242-crow.pdf} } @INPROCEEDINGS{Meyer90, AUTHOR={U. Meyer}, TITLE={Hemi-Cube Ray Tracing: A Method for Generating Soft Shadows}, BOOKTITLE={Eurographics '90}, PAGES={365-376}, } @ARTICLE{Williams78, AUTHOR={Lance Williams}, TITLE={Casting Curved Shadows on Curved Surfaces}, JOURNAL={Computer Graphics (SIGGRAPH '78 Proceedings)}, VOLUME={12}, NUMBER={3}, MONTH={Aug.}, YEAR={1978}, PAGES={270-274}, } @ARTICLE{Reeves87, AUTHOR={William T. Reeves and David H. Salesin and Robert L. Cook}, TITLE={Rendering Antialiased Shadows with Depth Maps}, JOURNAL={Computer Graphics (SIGGRAPH '87 Proceedings)}, VOLUME={21}, NUMBER={4}, MONTH={July}, YEAR={1987}, PAGES={283-291}, } @ARTICLE{Atherton78, AUTHOR={Peter R. Atherton and Kevin Weiler and Donald P. Greenberg}, TITLE={Polygon Shadow Generation}, JOURNAL={Computer Graphics (SIGGRAPH '78 Proceedings)}, VOLUME={12}, NUMBER={3}, MONTH={Aug.}, YEAR={1978}, PAGES={275-281}, KEYWORDS={hidden surface}, } @ARTICLE{Heckbert86, AUTHOR={Paul S. Heckbert}, TITLE={Survey of Texture Mapping}, JOURNAL={IEEE Computer Graphics and Applications}, VOLUME={6}, NUMBER={11}, MONTH={Nov.}, YEAR={1986}, PAGES={56-67}, } @ARTICLE{Heckbert90, AUTHOR={Paul S. Heckbert}, TITLE={Adaptive Radiosity Textures for Bidirectional Ray Tracing}, JOURNAL={Computer Graphics (SIGGRAPH '90 Proceedings)}, VOLUME={24}, NUMBER={4}, MONTH={Aug.}, YEAR={1990}, PAGES={145-154}, KEYWORDS={global illumination}, } @PHDTHESIS{Heckbert91, AUTHOR={Paul S. Heckbert}, TITLE={Simulating Global Illumination Using Adaptive Meshing}, SCHOOL={CS Division, UC Berkeley}, MONTH={June}, YEAR={1991}, NOTE={Tech. Report UCB/CSD 91/636}, KEYWORDS={radiosity, ray tracing, adaptive mesh, integral equation, thermal radiation, visibility}, } @ARTICLE{Diefenbach94, AUTHOR={Paul J. Diefenbach and Norman I. Badler}, TITLE={Pipeline Rendering: Interactive Refractions, Reflections, and Shadows}, JOURNAL={Displays}, ANNOTE={Special issue on Interactive Computer Graphics}, NOTE={http://www.cis.upenn.edu/~diefenba/home.html}, VOLUME={15}, NUMBER={3}, YEAR={1994}, PAGES={173-180}, KEYWORDS={beam tracing, hardware, real time}, } @PHDTHESIS{Diefenbach96, AUTHOR={Paul J. Diefenbach}, TITLE={Pipeline Rendering: Interaction and Realism through Hardware-Based Multi-Pass Rendering}, SCHOOL={U. of Pennsylvania}, YEAR=1996, KEYWORDS={beam tracing, hardware, real time, Phong illumination}, NOTE={http://www.cis.upenn.edu/~diefenba/home.html}, } @INPROCEEDINGS{Diefenbach97inter, AUTHOR={Paul J. Diefenbach and Norman I. Badler}, title={Multi-pass Pipeline Rendering: Realism for Dynamic Environments}, BOOKTITLE={1997 Symposium on Interactive 3D Graphics}, publisher={ACM SIGGRAPH}, YEAR=1997, KEYWORDS={texture mapping}, NOTE={To appear}, } @ARTICLE{Cohen85, AUTHOR={Michael F. Cohen and Donald P. Greenberg}, TITLE={The Hemi-Cube: A Radiosity Solution for Complex Environments}, JOURNAL={Computer Graphics (SIGGRAPH '85 Proceedings)}, VOLUME={19}, NUMBER={3}, MONTH={July}, YEAR={1985}, PAGES={31-40}, KEYWORDS={shading, diffuse reflection}, } @ARTICLE{Cohen88, AUTHOR={Michael F. Cohen and Shenchang Eric Chen and John R. Wallace and Donald P. Greenberg}, TITLE={A Progressive Refinement Approach to Fast Radiosity Image Generation}, JOURNAL={Computer Graphics (SIGGRAPH '88 Proceedings)}, VOLUME={22}, NUMBER={4}, MONTH={Aug.}, YEAR={1988}, PAGES={75-84}, ANNOTE={progressive radiosity}, } @BOOK{Cohen93, AUTHOR={Michael F. Cohen and John R. Wallace}, TITLE={Radiosity and Realistic Image Synthesis}, PUBLISHER={Academic Press}, ADDRESS={Boston}, YEAR={1993}, } @ARTICLE{Cook86, AUTHOR={Robert L. Cook}, TITLE={Stochastic Sampling in Computer Graphics}, JOURNAL={ACM Trans. on Graphics}, VOLUME={5}, NUMBER={1}, MONTH={Jan.}, YEAR={1986}, PAGES={51-72}, KEYWORDS={ray tracing, antialiasing, motion blur}, ANNOTE={came out 1987}, } @ARTICLE{Baum90-RTRPP, author = {Daniel R. Baum and James M. Winget}, month = {March}, year = 1990, title = {Real Time Radiosity Through Parallel Processing and Hardware Acceleration}, journal = {Computer Graphics (1990 Symposium on Interactive 3D Graphics)}, volume = 24, number = 2, pages = {67--75}, keywords = {parallelism, form factor, visibility, graphics workstation} } @ARTICLE{Rushmeier90-AHACR, author = {Holly E. Rushmeier and Daniel R. Baum and David E. Hall}, month = {June}, year = 1990, title = {Accelerating the Hemi-Cube Algorithm for Calculating Radiation Form Factors}, journal = {5th AIAA/ASME Thermophysics and Heat Transfer Conference}, address = {Seattle, Washington}, keywords = {form factors, hemicubes, visibility, graphics hardware} } @ARTICLE{Baum91, AUTHOR={Daniel R. Baum and Stephen Mann and Kevin P. Smith and James M. Winget}, TITLE={Making Radiosity Usable: Automatic Preprocessing and Meshing Techniques for the Generation of Accurate Radiosity Solutions}, MONTH={July}, YEAR={1991}, JOURNAL={Computer Graphics (SIGGRAPH '91 Proceedings)}, VOLUME={25}, NUMBER={4}, PAGES={51-60}, KEYWORDS={mesh generation}, } @INCOLLECTION{Max92-LRAVF, author = {Nelson L. Max and Michael J. Allison}, editor = {David Kirk}, year = 1992, title = {Linear Radiosity Approximation Using Vertex-to-Vertex Form Factors}, booktitle = {Graphics Gems III}, pages = {318--323}, publisher = {Academic Press Professional}, address = {Boston, MA}, keywords = {hardware, hemicube, visibility, graphics workstation} } @ARTICLE{Hanrahan91, AUTHOR={Pat Hanrahan and David Salzman and Larry Aupperle}, TITLE={A Rapid Hierarchical Radiosity Algorithm}, MONTH={July}, YEAR={1991}, JOURNAL={Computer Graphics (SIGGRAPH '91 Proceedings)}, VOLUME={25}, NUMBER={4}, PAGES={197-206}, ANNOTE={adaptive sampling of kernel in quadtree-like fashion motivated by Greengard's fast n-body algorithm}, } @INPROCEEDINGS{Heckbert92discon, AUTHOR={Paul S. Heckbert}, TITLE={Discontinuity Meshing for Radiosity}, BOOKTITLE={Third Eurographics Workshop on Rendering}, MONTH={May}, YEAR={1992}, ADDRESS={Bristol, UK}, PAGES={203-216}, KEYWORDS={radiosity, adaptive mesh, visibility}, } @ARTICLE{Lischinski92, AUTHOR={Dani Lischinski and Filippo Tampieri and Donald P. Greenberg}, TITLE={Discontinuity Meshing for Accurate Radiosity}, JOURNAL={IEEE Computer Graphics and Applications}, VOLUME={12}, NUMBER={6}, MONTH={November}, YEAR={1992}, PAGES={25-39}, } @PHDTHESIS{Campbell91, AUTHOR = {Campbell, III, A. T.}, TITLE = "Modeling Global Diffuse Illumination for Image Synthesis", SCHOOL = "CS Dept, University of Texas at Austin", YEAR = 1991, MONTH = {Dec.}, NOTE = {Tech. Report TR-91-39}, keywords = {mesh generation, radiosity, penumbra, shadow}, pages = "155", keywords = "Computational geometry data structure diffuse global illumination mesh generation optimization penumbra radiosity sampling shadow.", abstract = "Rapid developments in the design of algorithms for rendering globally illuminated scenes have taken place in the past five years. Net energy methods such as radiosity algorithms have become effective at computing the energy balance for scenes containing diffusely reflecting objects. Such methods first break up a scene description into a large set of elements, or possibly several levels of elements. Energy transfers among these elements are then determined using a variety of means. While much progress has been made in the design of energy transfer algorithms, little or no attention has been paid to the proper generation of the mesh of surface elements. This dissertation presents a technique for adaptively creating a mesh of surface elements as the energy transfers are computed. The method allows large numbers of small elements to be placed at parts of the scene where the most active energy transfers occur without requiring that other parts of the scene be subdivided needlessly to the same degree. As a result, the computational effort in the energy transfer computations can be concentrated where it has the most effect. Since the sources of direct and indirect illumination in the scene are polygonal elements, the effects of light sources with finite area must be computed. Most methods simplify the problem by approximating the area source with a collection of point sources. We present an object space algorithm to model illumination from polygonal light sources analytically. The result is a collection of smooth-shaded polygonal facets that may be rendered from any viewing position. Binary Space Partitioning trees are used to compute umbra and penumbra boundaries efficiently. Fast analytic techniques are developed for illumination calculations. Numerical optimization methods ensure that the shading function is sampled finely enough to find all significant illumination gradations. Illumination calculations are optimized to concentrate computational effort on parts of the scene where they are most needed.", note = "price (\$5.00)", } @ARTICLE{Ward88, AUTHOR={Gregory J. Ward and Francis M. Rubinstein and Robert D. Clear}, TITLE={A Ray Tracing Solution for Diffuse Interreflection}, JOURNAL={Computer Graphics (SIGGRAPH '88 Proceedings)}, VOLUME={22}, NUMBER={4}, MONTH={Aug.}, YEAR={1988}, PAGES={85-92}, ANNOTE={cache diffuse samples}, } @InProceedings{ward91a, author = "Gregory Ward", title = "Adaptive shadow testing for ray tracing", booktitle = "Eurographics Workshop on Rendering", month = "May", year = "1991", conference = "Barcelona", pages = "11--20", keywords = "efficiency", abstract = "Method for reducing the number of shadow rays for scenes with a large number of light sources. The sources are sorted on their contribution, and only for the most important sources rays are cast. The influence of the other sources is estimated statistically. Tests are done with different tolerances (threshold to determine whether sources are important) and certainties (rate of accuracy). The method gives good reduction and is able to find the most important shadows because it selects contrast as criterion.", annote = "avoid shooting rays at lights determined to not affect perception of image", } @TECHREPORT{Garland95tr, AUTHOR={Michael Garland and Paul S. Heckbert}, TITLE={Fast Polygonal Approximation of Terrains and Height Fields}, INSTITUTION={CS Dept., Carnegie Mellon U.}, MONTH={Sept.}, YEAR={1995}, NUMBER={CMU-CS-95-181}, NOTE={http://www.cs.cmu.edu/~garland/scape}, KEYWORDS={surface simplification, Delaunay triangulation, data-dependent triangulation, triangulated irregular network, TIN, multiresolution modeling, greedy insertion}, } @ARTICLE{Blinn88, AUTHOR={James F. Blinn}, TITLE={Me and My (Fake) Shadow}, JOURNAL={IEEE Computer Graphics and Applications}, VOLUME={8}, NUMBER={1}, MONTH={Jan.}, YEAR={1988}, PAGES={82-86}, KEYWORDS={projection, homogeneous matrix}, } @ARTICLE{Heidmann91, AUTHOR={Tim Heidmann}, TITLE={Real Shadows, Real Time}, JOURNAL={Iris Universe}, NOTE={Silicon Graphics, Inc.}, VOLUME={18}, YEAR={1991}, PAGES={28-31}, KEYWORDS={soft shadow, SGI Reality Engine, stencil buffer, shadow volume}, ANNOTE={includes C, GL code}, } @PHDTHESIS{Grant92, AUTHOR={Charles W. Grant}, TITLE={Visibility Algorithms in Image Synthesis}, SCHOOL={U. of California, Davis}, YEAR={1992}, KEYWORDS={z buffer, ray tracing, shadow, taxonomy}, annote={partial electronic version available from grant1@llnl.gov, A successor to Sutherland-Sproull-Schumacker, Comput. Surv. 74}, } @ARTICLE{Tessman89, AUTHOR={Thant Tessman}, TITLE={Casting Shadows on Flat Surfaces}, JOURNAL={Iris Universe}, NOTE={Silicon Graphics, Inc.}, MONTH={Winter}, YEAR={1989}, PAGES={16-19}, KEYWORDS={projection, homogeneous matrix}, ANNOTE={includes C, GL code}, } @BOOK{Neider93, AUTHOR={Jackie Neider and Tom Davis and Mason Woo}, TITLE={{OpenGL} Programming Guide}, PUBLISHER={Addison-Wesley}, ADDRESS={Reading MA}, YEAR={1993}, KEYWORDS={computer graphics, graphics workstation, SGI}, ANNOTE={shadows on a plane p. 401}, } @BOOK{McReynolds96, editor={Tom McReynolds}, title={Programming with {OpenGL}: Advanced Rendering}, note={SIGGRAPH '96 course notes}, year=1996, keywords={Silicon Graphics, graphics workstation, texture mapping, stencil buffer, accumulation buffer, shadow}, annote={article and code at http://www.sgi.com/Technology/openGL/advanced_sig96.html}, } @INPROCEEDINGS{Akeley93, AUTHOR={Kurt Akeley}, TITLE={{RealityEngine} Graphics}, BOOKTITLE={SIGGRAPH '93 Proc.}, MONTH={Aug.}, YEAR={1993}, PAGES={109-116}, KEYWORDS={hardware, texture mapping, graphics workstation, SGI}, } @ARTICLE{Clark76, AUTHOR={James H. Clark}, TITLE={Hierarchical Geometric Models for Visible Surface Algorithms}, JOURNAL={CACM}, VOLUME={19}, NUMBER={10}, MONTH={Oct.}, YEAR={1976}, PAGES={547-554}, KEYWORDS={bounding volume, spatial data structure}, } @ARTICLE{Haeberli90accum, AUTHOR={Paul Haeberli and Kurt Akeley}, TITLE={The Accumulation Buffer: Hardware Support for High-Quality Rendering}, JOURNAL={Computer Graphics (SIGGRAPH '90 Proceedings)}, VOLUME={24}, NUMBER={4}, MONTH={Aug.}, YEAR={1990}, PAGES={309-318}, KEYWORDS={antialiasing, motion blur, depth of field, soft shadows, stochastic sampling}, } @ARTICLE{Segal92, AUTHOR={Mark Segal and Carl Korobkin and Rolf van Widenfelt and Jim Foran and Paul Haeberli}, TITLE={Fast Shadows and Lighting Effects using Texture Mapping}, JOURNAL={Computer Graphics (SIGGRAPH '92 Proceedings)}, VOLUME={26}, NUMBER={2}, MONTH={July}, YEAR={1992}, PAGES={249-252}, KEYWORDS={perspective, scan conversion}, } @ARTICLE{Chen90, author = "Shenchang Eric Chen", title = "Incremental Radiosity: An Extension of Progressive Radiosity to an Interactive Image Synthesis System", pages = "135-144", journal = "Computer Graphics (SIGGRAPH '90 Proceedings)", volume = "24", number = "4", year = "1990", month = "August", keywords = "animation", } @InCollection{Chen91prograd, author = "Shenchang Eric Chen", editor = "James Arvo", title = "Implementing Progressive Radiosity with User-Provided Polygon Display Routines", booktitle = "Graphics Gems II", pages = "295-298, 583-597", publisher = "Academic Press Professional", address = "Boston, MA", year = "1991", note = "includes code", } @Article{george90a, author = "David W. George and Francois X. Sillion and Donald P. Greenberg", title = "Radiosity Redistribution for Dynamic Environments", journal = "IEEE Computer Graphics and Applications", pages = "26--34", volume = "10", number = "4", month = jul, year = "1990", keywords = "radiosity, animation, interaction, shadow, negative radiosity", annote = "They present a modification to the progressive radiosity to allow faster radiosity computation for animation sequences where objects can be added, moved, removed or their surface changed properties. When an object is added, radiosity is shot onto these new patches. A shadow volume is determined and a negative radiosity is shot to the patches in shadow. When an object is moved, it is removed from the scene and added to the new position, the radiosity being recomputed at each step. The radiosity recomputed is based on two strategies: redistribute first or interleave redistribution and propagation. Some heuristics are presented to choose the most important patches. This solution is good when just a few objects are involved but as the complexity of the scenes and mostly moving objects increases, the algorithm lost of its interest.", } @INCOLLECTION{Sillion91shadow, AUTHOR={Francois Sillion}, TITLE={Detection of Shadow Boundaries for Adaptive Meshing in Radiosity}, EDITOR={James Arvo}, BOOKTITLE={Graphics Gems II}, PAGES={311-315}, PUBLISHER={Academic Press}, ADDRESS={Boston MA}, YEAR={1991}, KEYWORDS={discontinuity meshing}, } @Article{haines86a, author = "Eric A. Haines and Donald P. Greenberg", title = "The Light Buffer: {A} Ray Tracer Shadow Testing Accelerator", pages = "6--16", journal = "IEEE Computer Graphics and Applications", volume = "6", number = "9", year = "1986", month = sep, keywords = "shading, ray tracing, shadows, ray tracing shadow cull", abstract = "In one area of computer graphics, realistic image synthesis, the ultimate goal is to produce a picture indistinguishable from a photograph of a real environment. A particularly powerful technique for simulating light reflection---an important element in creating this realism---is called ray tracing. This method produces images of excellent quality, but suffers from lengthy computation time that limits its practical use. \\ This article presents a new method to reduce shadow testing time during ray tracing. The technique involves generating light buffers, each of which partition the environment with respect to an individual light source. These partition descriptions are then used during shadow testing to quickly determine a small subset of objects that may have to be tested for intersection. \\ The results of timing tests illustrate the beneficial performance of these techniques. The tests compare the standard ray-tracing algorithm to light buffers of varying resolution.", } @InProceedings{bouville88a, author = "C. Bouville and J. L. Dubois and I. Marchal and M. L. Viaud", title = "Monte-Carlo integration applied to an illumination model", pages = "483--498", booktitle = "Eurographics '88", year = "1988", month = sep, editor = "D. A. Duce and P. Jancene", publisher = "North-Holland", conference = "European Computer Graphics Conference and Exhibition; held in Nice, France; 12 -- 16 September 1988", keywords = "illumination model", abstract = "The use of Monte-Carlo integration together with stochastic sampling is very useful for dealing with the scattering phenomena that occur in the propagation and reflection of light. In this paper, these techniques have been applied to the implementation of a physics-based global illumination model. The theoretical basis of this approach is presented briefly and various applications to realistic image are then described. This concerns the rendering of penumbra and scattered reflection effects, antialiasing and accurate color modelling through spectral integration. For all these applications, both theoretical and implementation aspects are developed and it is shown that stochastic techiques can provide very simple and efficient algorithms.", } @InProceedings{Drettakis94, author = "George Drettakis and Eugene Fiume", title = "A Fast Shadow Algorithm for Area Light Sources Using Backprojection", booktitle = "SIGGRAPH '94 Proc.", pages = "223--230", year = "1994", keywords = "shadows, umbra, penumbra, discontinuity meshing, global illumination, backprojection", note = "http://safran.imag.fr/Membres/George.Drettakis/pub.html", } @InProceedings{Stewart94, author = "A. James Stewart and Sherif Ghali", title = "Fast Computation of Shadow Boundaries using Spatial Coherence and Backprojection", booktitle = "Proceedings of SIGGRAPH '94", pages = "231--238", month = jul, year = "1994", keywords = "shadows, backprojection, discontinuity mesh, aspect graphs, radiosity, visual events, efficient surface enumeration, spatial coherence", } @InProceedings{Stewart93, author = "A. James Stewart and Sherif Ghali", title = "An Output Sensitive Algorithm for the Computation of Shadow Boundaries", booktitle = "Canadian Conference on Computational Geometry", pages = "291--296", month = aug, year = "1993", } @InProceedings{haines91shaft, author = "Eric Haines and John Wallace", title = "Shaft culling for efficient ray-traced radiosity", booktitle = "Eurographics Workshop on Rendering", month = "may", year = "1991", conference = "Barcelona", keywords = "radiosity, ray tracing, bounding volumes", abstract = " A shaft is a volume between an emitter and receiver. A list of enclosing boxes, c.q. patches that are in that volume is generated. The ray casting to determine visibility between emitter and receiver can be reduced by only testing the rays against the patches in the shaft. Methods to make the shafts, and to determine which object are in the shaft are given. ", } @InProceedings{shirley91direct, author = "Peter Shirley and Changyaw Wang", title = "Direct lighting calculation by Monte Carlo integration", booktitle = "Eurographics Workshop on Rendering", year = "1991", conference = "held in Barcelona, Spain; 13-15 May 1991", keywords = "monte carlo, illumination", abstract = "Application of Monte Carlo techniques for rendering scenes with multiple light sources. Only one shadow ray per viewing ray is used. Some issues for the design of probability densities for light sources are given.", } @InProceedings{kok91a, author = "Arjan Kok and Frederik Jansen", title = "Source selection for the direct lighting component in global illumination", booktitle = "Eurographics Workshop on Rendering", year = "1991", conference = "held in Barcelona, Spain; 13-15 May 1991", keywords = "two pass", abstract = "Describes criteria for deciding which patches should be considered to be light sources in a two pass method in which direct lighting component is calculated separately in the second pass.", } @InCollection{Zimmerman95, author = "Kurt Zimmerman", editor = "Alan W. Paeth", title = "Direct Lighting Models for Ray Tracing with Cylindrical Lamps", booktitle = "Graphics Gems V", pages = "285--289", publisher = "Academic Press Professional", address = "Boston, MA", year = "1995", } @INCOLLECTION{Zimmerman95twopass, AUTHOR={Kurt Zimmerman and Peter Shirley}, TITLE={A Two-Pass Realistic Image Synthesis Method for Complex Scenes}, BOOKTITLE={Rendering Techniques '95 (Proceedings of the Sixth Eurographics Workshop on Rendering)}, PUBLISHER={Springer-Verlag}, ADDRESS={NY}, PAGES={284-295}, YEAR=1995, NOTE={Also ftp://ftp.cs.indiana.edu/pub/techreports/TR434.ps.Z}, KEYWORDS={shadow}, } @InCollection{Wang92, author = "Changyaw Wang", editor = "David Kirk", title = "Physically Correct Direct Lighting for Distribution Ray Tracing", booktitle = "Graphics Gems III", pages = "307-313, 562-568", publisher = "Academic Press", address = "Boston, MA", year = "1992", keywords = "monte carlo, area light source, soft shadows", annote = "includes code", } @InProceedings{rossignac89b, author = "J. Rossignac and J. Wu", title = "Depth-interval buffer for hardware-assisted shading from {CSG}: Accurate treatment of coincident faces and shadows", booktitle = "Fifth Eurographics Workshop on Graphics Hardware", year = "1989", editor = "D. Grimsdale and A. Kaufman", conference = "held in Lausanne, Switzerland; 2-3 September 1989", keywords = "hardware", annote = "Discuss the role of a depth interval buffer using a new version of the Trickle algorithm for handling coincident faces and shadows with CSG representations.", } @article{Fuchs85sig, author = "Henry Fuchs and Jack Goldfeather and Jeff P. Hultquist and Susan Spach and John D. Austin and Brooks, Jr., Frederick P. and John G. Eyles and John Poulton", title = "Fast Spheres, Shadows, Textures, Transparencies, and Image Enhancements in {Pixel-Planes}", pages = "111--120", journal = "Computer Graphics (SIGGRAPH '85 Proceedings)", volume = "19", number = "3", year = "1985", month = jul, keywords = "pixel planes, parallel processing", annote = "Fuchs' Pixel-Planes machine is explained in general. See [Eyles 87] for a final report. Explanation of how the machine can process linear equations, and gives several algorithms for display. Also published in Advances in Computer Graphics I, EUROGRAPHICS 86.", } @Article{eyles87a, author = "John Eyles and John Austin and Henry Fuchs and Trey Greer and John Poulton", title = "{Pixel-Planes} 4: {A} Summary", pages = "183--207", journal = "Advances in Computer Graphics Hardware II, Record of Second Eurographics Workshop on Graphics Hardware", year = "1987", keywords = "parallel processing", annote = "A final report on the Pixel-Planes system. See also [Fuchs 85].", } @InProceedings{amanatides84a, author = "John Amanatides", title = "Ray Tracing with Cones", pages = "129--135", journal = "Computer Graphics (SIGGRAPH '84 Proceedings)", volume = "18", number = "3", year = "1984", month = jul, conference = "held in Minneapolis, Minnesota; 23--27 July 1984", keywords = "cone tracing, antialiasing, I35 Ray Tracing", annote = "ray tracing spheres and polygons with circular conical rays A technique for antialiasing in ray tracing is presented which utilizes cones instead of rays. Cones prevent problems generally associated with point sampling, and therefore allow for more natural images. The mathematics involved seem only ``pretty'' for spherical objects, so an acid test has yet to be performed. \\ A new approach to ray tracing is introduced. The definition of a ``ray'' is extended into a cone by including information on the spread angle and the virtual origin. The advantages of this approach, which tries to model light propagation with more fidelity, include a better method of antialiasing, a way of calculating fuzzy shadows and dull reflections, a method of calculating the correct level of detail in a procedural model and texture map, and finally, a procedure for faster intersection calculation.", } @InProceedings{salesin89a, author = "David Salesin and Jorge Stolfi", title = "The {ZZ}-Buffer: a Simple and Efficient Rendering Algorithm with Reliable Antialiasing", pages = "451--466", journal = "Proceedings of the PIXIM '89", year = "1989", annote = "The ZZ-buffer is a new rendering algorithm that is simple, efficient, and produces high-quality images. The algorithm correctly renders transparent surfaces, shadows with real penumbrae, and depth of field effects. The ZZ-buffer algorithm is substantially faster than ray tracing an nearly as versatile. While the ZZ-buffer is somewhat slower than the Z-buffer or A-buffer, it avoids the aliasing and other artifacts of these algorithms. The algorithm's efficiency comes from a screen-space object indexing scheme, and from the use of lazy evaluation for visibility tests. It achieves reliable antialiasing by employing an adaptive form of stochastic supersampling. The algorithm is simple enough that we give most of its code here in this paper. The algorithm has been implemented as part of a commercial production system and has proved robust over a large variety of images.", } @InProceedings{Muller:1994:FRR, author = "Stefan Muller and Frank Schoffel", booktitle = "Fifth Eurographics Workshop on Rendering", title = "Fast Radiosity Repropagation for Interactive Virtual Environments Using a Shadow-Form-Factor-List", address = "Darmstadt, Germany", pages = "325--342", month = jun, year = "1994", keywords = "dynamic environments, shadow-form-factor-list, scene coherence, radiosity repropagation, progressive refinement radiosity", bibsource = "sig-11-1994", } @TechReport{Seales89, author = "W. Brent Seales and Charles R. Dyer", title = "Using the {ASP} for the Interactive Viewing of Polyhedral Scenes", institution = "University of Wisconsin", number = "TR 903", month = dec, year = "1989", abstract = "In this paper we discuss an approach for solving the problem of interactively viewing a polyhedral scene. Interactive viewing is the computation and display of an interactively controlled sequence of views of a scene corresponding to a viewer's movement along a continuous viewpath. We present an algorithm for generating such views with hidden-lines removed, and consider extensions to solve the problem of generating views with hidden-surfaces removed. The method relies on a precomputation phase which constructs the {\it aspect representation}, or asp. This representation can be used to interactively view a polyhedral scene at video rates with hidden-lines or surfaces removed. The method exploits {\it viewpath coherence}, a form of frame-to-frame coherence present in such a sequence of views. The display of polyhedral line drawings with hidden lines removed makes use of the topology of the image line drawing and the pre-ordering of visual events which change that topology. This approach is extended to interactive viewing with hidden-surfaces removed and with shading, shadows, and multiple light sources. The set of object resolution polygons representing the visible faces and the shadow polygons for a single frame can be computed efficiently from the previous frame using the asp. The hidden-line and hidden-surface algorithms are closely related via the asp. Interactive viewing with hidden-lines removed is shown to be about as fast as the interactive display of a wire-frame scene. The primary on-line cost of hidden-surface interactive viewing is the cost associated with scan converting the visible surfaces and shadow polygons.", } @InProceedings{seales90a, author = "W. Brent Seales and Charles R. Dyer", title = "Shaded Rendering and Shadow Computation for Polyhedral Animation", pages = "175--182", journal = "Proceedings of Graphics Interface '90", year = "1990", month = may, conference = "held in Halifax, Nova Scotia; 14-18 May 1990", keywords = "animation, aspect representation, hidden-surface computation, interactive viewing, viewpath coherence", } @InProceedings{wanger92a, author = "Leonard Wanger", title = "The effect of shadow quality on the perception of spatial relationships in computer generated imagery", pages = "39--42", journal = "Computer Graphics (1992 Symposium on Interactive 3D Graphics)", volume = "25", number = "2", year = "1992", month = mar, keywords = "interactive tasks, spatial relations, cue theory", } @Article{wanger92b, author = "Leonard R. Wanger and James A. Ferwerda and Donald P. Greenberg", title = "Perceiving spatial relationships in computer-generated images", journal = "IEEE Computer Graphics and Applications", pages = "44--58", volume = "12", number = "3", month = may, year = "1992", keywords = "experimental psychology, perception cues, perspective projection, orthographic projection, shading, shadow, textures, motion", annote = "Visual information determines our perception of spatial relationships. We explored the visual cues we believe are most important for depth relations in computer-generated images.", } @TechReport{QMW-DCS-521-1990a, author = "M. Slater", title = "Dynamic Modification Of Objects In 3{D} Scenes Using Tiling And {A} {Z} -Buffer", institution = "Queen Mary College, Department of Computer Science", year = "1990", month = nov, number = "QMW-DCS-1990-521", scope = "ace", abstract-url = "http://www.dcs.qmw.ac.uk/publications/report_abstracts/1990/521", keywords = "Interactive 3D Graphics, Z-Buffer, Tiling, Shadows, Graphica Objects, Segments.", } @InProceedings{Chrysantho1995a, author = "Yiorgos Chrysanthou and Mel Slater", booktitle = "ACM SIGGRAPH Symposium on Interactive 3D Graphics, Monterey, CA", title = "Shadow Volume {BSP} Trees for Computation of Shadows in Dynamic Scenes", year = "1995", month = apr, pages = "45--50", } @Incollection{arvo89survey, author = "James Arvo and David Kirk", title = "A survey of ray tracing acceleration techniques", pages = "201--262", booktitle = "An introduction to ray tracing", year = "1989", editor = "Andrew S. Glassner", publisher = "Academic Press", } @InProceedings{Arvo95irrad, author = "James Arvo", title = "Applications of Irradiance Tensors to the Simulation of Non-Lambertian Phenomena", pages = "335--342", booktitle = "SIGGRAPH 95 Proceedings", year = "1995", month = aug, keywords={shadow, shading}, } @Article{Hourcade85, author = "J. C. Hourcade and A. Nicolas", title = "Algorithms for Antialiased Cast Shadows", pages = "259--265", journal = "Computers and Graphics", volume = "9", number = "3", year = "1985", keywords = "z-buffer shadow", } @InProceedings{Tanaka90, author = "Toshimitsu Tanaka and Tokiichiro Takahashi", title = "Cross Scanline Algorithm", pages = "63--74", booktitle = "Eurographics '90", year = "1990", month = sep, publisher = "North-Holland", } @inproceedings{Tanaka91, author = "Toshimitsu Tanaka and Tokiichiro Takahashi", title = "Shading with Area Light Sources", booktitle = "Eurographics '91", publisher = "North-Holland", pages = "235--246, 535--537", month = sep, year = "1991", annote = "no shadows", } @ARTICLE{Tanaka94, author = "Toshimitsu Tanaka and Tokiichiro Takahashi", journal = "Computer Graphics Forum", title = "Cross Scan Buffer and its Applications", volume = "13", number = "3", publisher = "Basil Blackwell Ltd", pages = "467--376", year = "1994", note = "Eurographics '94 Conference issue", } @ARTICLE{Tanaka95, title = "Fast Shadowing Algorithm for Linear Light Sources", author = "Toshimitsu Tanaka and Tokiichiro Takahashi", journal = "Computer Graphics Forum", volume = "14", number = "3", pages = "205--216", year = "1995", note = "Eurographics '95 Conference issue", } @ARTICLE{Tanaka96, title={Fast Analytic Shading and Shadowing for Area Light Sources}, author={Toshimitsu Tanaka and Tokiichiro Takahashi}, note={Submitted for publication}, year=1996, annote={diffuse and specular surfaces}, } @ARTICLE{Max95, AUTHOR={Nelson Max}, TITLE={Optimal Sampling for Hemicubes}, JOURNAL={IEEE Trans. on Visualization and Computer Graphics}, VOLUME={1}, NUMBER={1}, YEAR={1995}, KEYWORDS={hemicube, radiosity, form factor, sampling, variance, optimization}, ABSTRACT={ The hemicube estimates of form factors are based on a finite set of sample directions. We obtain several optimal arrangements of sample directions, which minimize the variance of these estimates. They are based on changing the size or shape of the pixels or the shape of the hemicube, or using non-uniform pixel grids. The best reduces the variance by 43%. The variance calculation is based on the assumption that the errors in the estimate are caused by the projections of single polygon edges, and that the positions and orientations of these edges are random. This replaces the infinite dimensional space of possible environments by the two dimensional space of great circles on the unit sphere, making the numerical variance minimization possible. }, } @InProceedings{Myszkowski94, title = "Texture Mapping as an Alternative for Meshing During Walkthrough Animation", author = "Karol Myszkowski and Tosiyasu L. Kunii", booktitle = "Fifth Eurographics Workshop on Rendering", pages = "375--388", month = jun, year = "1994", keywords = "texture mapping, Gouraud shading, meshing, radiosity", } @INPROCEEDINGS{Ayatsuka96, TITLE={Penumbrae for 3D Interactions}, AUTHOR={Yuji Ayatsuka and Satoshi Matsuoka and Jun Rekimoto}, BOOKTITLE={9th Annl. Symp. for User Interface Software and Technology (UIST96)}, MONTH={Nov.}, YEAR=1996, PAGES={165-166}, ABSTRACT={ We propose a new feedback technique for 3D interaction in augmented reality using penumbrae which the objects cast. Rather than generating a real penumbra, which is computationally expensive, a fast, simplified algorithm is employed, which also is better suited for position feedback purposes. User studies show that 1) compared to orthographic shadow projections, 3D spatial recognition and placement tasks are substantially faster with our penumbrae, and 2) the users feel the feedback to be more natural, which is especially important in augmented reality. from http://www-masuda.is.s.u-tokyo.ac.jp/~aya/works/penumbra.html }, } @TECHREPORT{Goslin95, author={Michael Goslin}, title={Illumination as Texture Maps for Faster Rendering}, SCHOOL={Dept. of CS, U. of North Carolina, Chapel Hill}, year=1995, number={TR 95-042}, keywords={texture mapping, radiosity, walkthrough, graphics workstation}, note={ftp://ftp.cs.unc.edu/pub/publications/techreports/95.html}, } @TECHREPORT{Bastos96, AUTHOR={Rui Bastos and Michael Goslin and Hansong Zhang}, TITLE={Efficient Rendering of Radiosity Using Textures and Bicubic Reconstruction}, NUMBER={TR 96-025}, INSTITUTION={Dept. of CS, U. of North Carolina at Chapel Hill}, YEAR=1996, KEYWORDS={texture mapping}, NOTE={http://www.cs.unc.edu/~bastos/radiosity.html}, annote={also available at ftp://ftp.cs.unc.edu/pub/publications/techreports/96.html}, } @INPROCEEDINGS{Bastos97, AUTHOR={Rui Bastos and Michael Goslin and Hansong Zhang}, TITLE={Efficient Radiosity Rendering using Textures and Bicubic Reconstruction}, BOOKTITLE={1997 Symposium on Interactive 3D Graphics}, publisher={ACM SIGGRAPH}, YEAR=1997, KEYWORDS={texture mapping}, NOTE={To appear. http://www.cs.unc.edu/~bastos/radiosity.html}, } @Article{Appel67qi, author = "Arthur Appel", title = "The Notion of Quantitative Invisibility and the Machine Rendering of Solids", year = "1967", journal = "Proc. ACM Natl. Mtg.", pages = "387-393", keywords = "hidden line", } @ARTICLE{Ackland81edge, author = "Bryan D. Ackland and Neil H. Weste", title = "The edge flag algorithm - a fill method for raster scan displays", journal = "IEEE Trans. on Comp.", volume = "C-30", year = "1981", pages = "41--47", descriptors = "Method; display; realization; two-dimensional plot; three-dimensional plot; graphics; frame store; polygon fill; raster scan; computer animation;", annote = "Contour (polygon) filling is a primitive required in many application areas of raster scan graphics. The bit-map memory in a frame-store display is computationally well suited to this task, as it provides a large scratch pad working space. In this paper, a number of contour filling algorithms based on the read/write properties of the frame-store memory are compared with the classical {"}ordered-edge-list{"} approach.", } @INPROCEEDINGS{Hardt96, author={Stephen Hardt and Seth Teller}, title={High-Fidelity Radiosity Rendering at Interactive Rates}, booktitle={Rendering Techniques '96}, publisher={Springer-Verlag}, year=1996, note={(Proc. Eurographics Workshop on Rendering)}, pages={71-80,283}, keywords={real time}, } @TECHREPORT{Moller95ms, author={Tomas M\"oller}, title={Virtual Radiosity}, month={Sept.}, year=1995, institution={Dept. of Computer Engineering, Lund Inst. of Tech., Sweden}, keywords={texture mapping, graphics workstation, level of detail, virtual reality}, note={Master's thesis, http://www.clarus.se/People/tompa/reports.html}, annote={radiosity algorithm for graphics workstations that uses hardware texture mapping and multiple LODs}, } @TECHREPORT{Moller96lic, author={Tomas M\"oller}, title={Speed-Up Techniques for Computer Graphics}, month={Dec.}, year=1996, institution={Dept. of Computer Engineering, Chalmers U. of Tech., Sweden}, number={250L}, note={Licenciate thesis, http://www.clarus.se/People/tompa/reports.html}, annote={66 pp., contains four papers: (1) image resampling (Fast Bitmap Stretching, Gems III), (2) ray-surface intersection optimization (Faster Ray Tracing Using Scanline Rejection, Gems V), (3) texturing for radiosity in VR (Radiosity Techniques for Virtual Reality, Plzen, Czech, 1996), (4) faster soft shadows (Speed-Up Techniques for Soft Shadow Generation, submitted 1996). }, } @INPROCEEDINGS{Moller97shad, author={Tomas M\"oller}, title={Speed-Up Techniques for Soft Shadow Generation}, booktitle={SMCR'97 - Topical Workshop on VR and Advanced Man-Machine Interfaces}, month={June}, year=1997, address={Tampere, Finland}, annote={variation on Heckbert-Herf soft shadow algorithm}, } @inproceedings{Soler:1998:FCSS, author = {Cyril Soler and Fran\&\#231;ois X. Sillion}, title = {Fast calculation of soft shadow textures using convolution}, booktitle = {Proceedings of the 25th annual conference on Computer graphics and interactive techniques}, year = {1998}, isbn = {0-89791-999-8}, pages = {321--332}, doi = {http://doi.acm.org/10.1145/280814.280927}, publisher = {ACM Press}, } @article{Haines:2002:SPS, author = {Eric Haines}, title = {Soft planar shadows using plateaus}, journal = {J. Graph. Tools}, volume = {6}, number = {1}, year = {2001}, issn = {1086-7651}, pages = {19--27}, publisher = {A. K. Peters, Ltd.}, } @inproceedings{Agrawala:2000:EIBM, author = {Maneesh Agrawala and Ravi Ramamoorthi and Alan Heirich and Laurent Moll}, title = {Efficient image-based methods for rendering soft shadows}, booktitle = {Proceedings of the 27th annual conference on Computer graphics and interactive techniques}, year = {2000}, isbn = {1-58113-208-5}, pages = {375--384}, doi = {http://doi.acm.org/10.1145/344779.344954}, publisher = {ACM Press/Addison-Wesley Publishing Co.}, } @inproceedings{Heidrich:2000:SSMLL, author = {Wolfgang Heidrich and Stefan Brabec and Hans-Peter Seidel}, title = {Soft Shadow Maps for Linear Lights}, booktitle = {Proceedings of the Eurographics Workshop on Rendering Techniques 2000}, year = {2000}, isbn = {3-211-83535-0}, pages = {269--280}, publisher = {Springer-Verlag}, } @BOOK{Moller:2002:RTR, author = {Tomas M{\"o}ller and Eric Haines}, year = 2002, title = {Real-Time Rendering, Second Edition}, publisher = {A. K. Peters Limited}, } @MISC{Moller:RT, author = {Tomas M{\"o}ller and Eric Haines}, year = 1999, title = {Real-Time Rendering}, note = {Webpage for book at \url{http://www.realtimerendering.com}} } @InProceedings{RENDERING_TECHNIQUES_02*297, author = {Akenine-M\"oller, Tomas and Assarssonk, Ulf}, title = {Approximate Soft Shadows on Arbitrary Surfaces using Penumbra Wedges}, booktitle = {Thirteenth Eurographics Workshop on Rendering}, year = {2002}, pages = {297--305}, } @InProceedings{Zheng:2002:SSSAL, author = {Zhengming Ying, Min Tang and Jinxiang Dong}, title = {Soft shadow maps for area light by area approximation}, booktitle = {10th Pacific Conference on Computer Graphics and Applications}, publisher = {IEEE}, year = {2002}, pages = {442-443} } @InProceedings{HLHS03, author ="Jean-Marc Hasenfratz and Marc Lapierre and Nicolas Holzschuch and Fran\c{c}ois Sillion", title ="A survey of Real-Time Soft Shadows Algorithms", booktitle ="Eurographics", year ="2003", publisher ="Eurographics", organization= "Eurographics", note ="State-of-the-Art Report", keywords ="shadows algorithms, soft shadows, real-time", url ="http://www-imagis.imag.fr/Publications/2003/HLHS03" } @INPROCEEDINGS{chan:smoothie:egsr2003, AUTHOR = {Eric Chan and Fr\'edo Durand}, TITLE = {Rendering Fake Soft Shadows with Smoothies}, BOOKTITLE = {Proceedings of the Eurographics Symposium on Rendering}, YEAR = {2003}, PAGES = {208--218}, LOCATION = {Leuven, Belgium}, PUBLISHER = {Eurographics Association}, PDF = {pdf/smoothie.pdf} } @inproceedings{Wyman:2003:PM, author = {Chris Wyman and Charles Hansen}, title = {Penumbra maps: approximate soft shadows in real-time}, booktitle = {Proceedings of the 14th Eurographics workshop on Rendering}, year = {2003}, isbn = {3-905673-03-7}, pages = {202--207}, location = {Leuven, Belgium}, publisher = {Eurographics Association}, } @inproceedings{Kirsch:2003:RRSS, author = {Florian Kirsch and Juergen Doellner}, title = {Real-time soft shadows using a single light sample}, booktitle = {Journal of WSCG (Winter School on Computer Graphics 2003)}, year = {2003}, pages = {11(1)} } @INPROCEEDINGS{heidrich00, AUTHOR = {Wolfgang Heidrich and Stefan Brabec and Hans-Peter Seidel}, TITLE = {Soft Shadow Maps for Linear Lights}, BOOKTITLE = {Proceedings of the 11th Eurographics Workshop on Rendering}, YEAR = {2000}, PAGES = {269--280}, PDF = {test.pdf} } @INPROCEEDINGS{brabec:singlesample:gi2002, TITLE = {{Single Sample Soft Shadows Using Depth Maps}}, AUTHOR = {Stefan Brabec and Hans-Peter Seidel}, BOOKTITLE = {Proceedings of Graphics Interface}, YEAR = {2002}, MONTH = {May}, LOCATION = {Calgary, Alberta}, PAGES = {219--228} } @INPROCEEDINGS{baum89, AUTHOR = {D. R. Baum and H. E. Rushmeire and J. M. Winget}, TITLE = {Improving radiosity solutions through the use of analytically determined form-factors}, BOOKTITLE = {Proceedings of ACM SIGGRAPH}, YEAR = {1989}, ISBN = {0-201-50434-0}, PAGES = {325--334}, DOI = {http://doi.acm.org/10.1145/74333.74367}, PUBLISHER = {ACM Press} } @INPROCEEDINGS{drettakis:backprojection:sig1994, AUTHOR = {George Drettakis and Eugene Fiume}, TITLE = {A fast shadow algorithm for area light sources using backprojection}, BOOKTITLE = {Proceedings of ACM SIGGRAPH}, YEAR = {1994}, ISBN = {0-89791-667-0}, PAGES = {223--230}, DOI = {http://doi.acm.org/10.1145/192161.192207}, PUBLISHER = {ACM Press}, PDF = {pdf/p223-drettakis.pdf} } @TECHREPORT{parker98, AUTHOR = {Steve Parker and Peter Shirley and Brian Smits}, TITLE = {Single Sample Soft Shadows}, INSTITUTION = {Computer Science Department, University of Utah}, YEAR = {1998}, month = {october}, PAGES = {}, NUMBER = {UUCS-98-019} } @TECHREPORT{heckbert97, AUTHOR = {Paul Heckbert and Michael Herf}, TITLE = {Simulating Soft Shadows with Graphics Hardware}, INSTITUTION = {Computer Science Department, Carnegie Mellon University}, YEAR = {1997}, PAGES = {}, NUMBER = {CMU-CS-97-104} } @INPROCEEDINGS{woo92, AUTHOR = {Andrew Woo}, TITLE = {The shadow depth map revisited}, BOOKTITLE = {Graphics Gems III}, YEAR = {1992}, ISBN = {0-12-409671-9}, PAGES = {338--342}, PUBLISHER = {Academic Press Profession, Inc.} } @INPROCEEDINGS{wanger92, AUTHOR = {Leonard C. Wanger and James A. Ferwerda and Donald P. Greenberg}, TITLE = {Perceiving Spatial Relationships in Computer-Generated Images}, BOOKTITLE = {IEEE Computer Graphics and Applications, {\normalfont vol. 12, no. 3}}, YEAR = {1992}, PAGES = {44--58} } @INPROCEEDINGS{williams:smap:sig1978, AUTHOR = {Lance Williams}, TITLE = {Casting curved shadows on curved surfaces}, BOOKTITLE = {Proceedings of the 5th annual conference on Computer graphics and interactive techniques}, YEAR = {1978}, PAGES = {270--274}, DOI = {http://doi.acm.org/10.1145/800248.807402}, PUBLISHER = {ACM Press}, PDF = {pdf/p270-williams.pdf} } @INPROCEEDINGS{37435, AUTHOR = {William T. Reeves and David H. Salesin and Robert L. Cook}, TITLE = {Rendering antialiased shadows with depth maps}, BOOKTITLE = {Proceedings of the 14th annual conference on Computer graphics and interactive techniques}, YEAR = {1987}, ISBN = {0-89791-227-6}, PAGES = {283--291}, DOI = {http://doi.acm.org/10.1145/37401.37435}, PUBLISHER = {ACM Press}, PDF = {pdf/p283-reeves.pdf} } @INPROCEEDINGS{segal:smap:sig1992, AUTHOR = {Mark Segal and Carl Korobkin and Rolf van Widenfelt and Jim Foran and Paul Haeberli}, TITLE = {Fast shadows and lighting effects using texture mapping}, BOOKTITLE = {Proceedings of the 19th annual conference on Computer graphics and interactive techniques}, YEAR = {1992}, ISBN = {0-89791-479-1}, PAGES = {249--252}, DOI = {http://doi.acm.org/10.1145/133994.134071}, PUBLISHER = {ACM Press}, PDF = {pdf/p249-segal.pdf} } @INPROCEEDINGS{lokovic:deep:sig2000, AUTHOR = {Tom Lokovic and Eric Veach}, TITLE = {Deep shadow maps}, BOOKTITLE = {Proceedings of the 27th annual conference on Computer graphics and interactive techniques}, YEAR = {2000}, ISBN = {1-58113-208-5}, PAGES = {385--392}, DOI = {http://doi.acm.org/10.1145/344779.344958}, PUBLISHER = {ACM Press/Addison-Wesley Publishing Co.}, PDF = {pdf/p385-lokovic.pdf} } @INPROCEEDINGS{agrawala:shadows:sig2000, AUTHOR = {Maneesh Agrawala and Ravi Ramamoorthi and Alan Heirich and Laurent Moll}, TITLE = {Efficient image-based methods for rendering soft shadows}, BOOKTITLE = {Proceedings of the 27th annual conference on Computer graphics and interactive techniques}, YEAR = {2000}, ISBN = {1-58113-208-5}, PAGES = {375--384}, DOI = {http://doi.acm.org/10.1145/344779.344954}, PUBLISHER = {ACM Press/Addison-Wesley Publishing Co.}, PDF = {pdf/p375-agrawala.pdf} } @INPROCEEDINGS{fernando:asm:sig2001, AUTHOR = {Randima Fernando and Sebastian Fernandez and Kavita Bala and Donald P. Greenberg}, TITLE = {Adaptive shadow maps}, BOOKTITLE = {Proceedings of the 28th annual conference on Computer graphics and interactive techniques}, YEAR = {2001}, ISBN = {1-58113-374-X}, PAGES = {387--390}, DOI = {http://doi.acm.org/10.1145/383259.383302}, PUBLISHER = {ACM Press}, PDF = {pdf/p387-fernando.pdf} } @INPROCEEDINGS{Brabec01, AUTHOR = {Stefan Brabec and Hans-Peter Seidel}, TITLE = {Hardware-accelerated Rendering of Antialiased Shadows with Shadow Maps}, BOOKTITLE = {Computer Graphics International}, YEAR = {2001} } @INPROCEEDINGS{stamminger:psm:sig2002, AUTHOR = {Marc Stamminger and George Drettakis}, TITLE = {Perspective shadow maps}, BOOKTITLE = {Proceedings of the 29th annual conference on Computer graphics and interactive techniques}, YEAR = {2002}, ISBN = {1-58113-521-1}, PAGES = {557--562}, LOCATION = {San Antonio, Texas}, DOI = {http://doi.acm.org/10.1145/566570.566616}, PUBLISHER = {ACM Press}, PDF = {pdf/p557-stamminger.pdf} } @INPROCEEDINGS{moller, AUTHOR = {Tomas Akenine-M\"oller and Ulf Assarsson}, TITLE = {Approximate Soft Shadows on Arbitrary Surfaces using Penumbra Wedges}, BOOKTITLE = {Proceedings of the 13th Eurographics Workshop on Rendering}, YEAR = {2002}, PAGES = {309--218}, LOCATION = {Pisa, Italy}, PUBLISHER = {Eurographics} } @article{Assarsson:2003:AGBSSV, author = {Ulf Assarsson and Tomas Akenine-M\"oller}, title = {A geometry-based soft shadow volume algorithm using graphics hardware}, journal = {ACM Trans. Graph.}, volume = {22}, number = {3}, year = {2003}, issn = {0730-0301}, pages = {511--520}, doi = {http://doi.acm.org/10.1145/882262.882300}, publisher = {ACM Press}, } @ARTICLE{Woo:1990:SSA, AUTHOR = {Andrew Woo and Pierre Poulin and Alain Fournier}, TITLE = {A Survey of Shadow Algorithms}, JOURNAL = {IEEE Computer Graphics and Applications}, VOLUME = {10}, NUMBER = {6}, PAGES = {13--32}, MONTH = NOV, YEAR = {1990}, CODEN = {ICGADZ}, ISSN = {0272-1716}, BIBDATE = {Sat Jan 25 06:42:48 MST 1997}, ACKNOWLEDGEMENT = ACK-NHFB, AFFILIATION = {Alias Research, Toronto, Ont, Canada}, ANNOTE = {Essential to realistic and visually appealing images, shadows are difficult to compute in most display environments. This survey characterizes the various types of shadows. It also describes most existing shadow algorithms and discusses their complexities, advantages, and shortcomings. We examine hard shadows, soft shadows, shadows of transparent objects, and shadows for complex modeling primitives. For each type, we examine shadow algorithms within various rendering techniques. \\ This survey attempts to provide readers with enough background and insight on the various methods to allow them to choose the algorithm best suited to their needs. We also hope that our analysis will help identify the areas that need more research and point to possible solutions.}, CLASSIFICATION = {723; 741}, JOURNALABR = {IEEE Comput Graphics Appl}, KEYWORDS = {Bidirectional Ray Tracing; Computer Graphics; Hard Shadow Generation; Image Processing; Image Rendering; Shadow Algorithms; Shadow Volumes; Soft Shadow Generation; survey} } @INPROCEEDINGS{37407, AUTHOR = {John Lasseter}, TITLE = {Principles of traditional animation applied to 3D computer animation}, BOOKTITLE = {Proceedings of the 14th annual conference on Computer graphics and interactive techniques}, YEAR = {1987}, ISBN = {0-89791-227-6}, PAGES = {35--44}, DOI = {http://doi.acm.org/10.1145/37401.37407}, PUBLISHER = {ACM Press} } @ARTICLE{195827, AUTHOR = {Jianmin Zhao and Norman I. Badler}, TITLE = {Inverse kinematics positioning using nonlinear programming for highly articulated figures}, JOURNAL = {ACM Transactions on Graphics (TOG)}, VOLUME = {13}, NUMBER = {4}, YEAR = {1994}, ISSN = {0730-0301}, PAGES = {313--336}, DOI = {http://doi.acm.org/10.1145/195826.195827}, PUBLISHER = {ACM Press} } @INPROCEEDINGS{218422, AUTHOR = {Andrew Witkin and Zoran Popovic}, TITLE = {Motion warping}, BOOKTITLE = {Proceedings of the 22nd annual conference on Computer graphics and interactive techniques}, YEAR = {1995}, ISBN = {0-89791-701-4}, PAGES = {105--108}, DOI = {http://doi.acm.org/10.1145/218380.218422}, PUBLISHER = {ACM Press} } @INPROCEEDINGS{97923, AUTHOR = {Karl Sims}, TITLE = {Particle animation and rendering using data parallel computation}, BOOKTITLE = {Proceedings of the 17th annual conference on Computer graphics and interactive techniques}, YEAR = {1990}, ISBN = {0-201-50933-4}, PAGES = {405--413}, DOI = {http://doi.acm.org/10.1145/97879.97923}, PUBLISHER = {ACM Press} } @INPROCEEDINGS{566621, AUTHOR = {Doug L. James and Dinesh K. Pai}, TITLE = {DyRT: dynamic response textures for real time deformation simulation with graphics hardware}, BOOKTITLE = {Proceedings of the 29th annual conference on Computer graphics and interactive techniques}, YEAR = {2002}, ISBN = {1-58113-521-1}, PAGES = {582--585}, LOCATION = {San Antonio, Texas}, DOI = {http://doi.acm.org/10.1145/566570.566621}, PUBLISHER = {ACM Press} } @INPROCEEDINGS{344876, AUTHOR = {Joseph Laszlo and Michiel van de Panne and Eugene Fiume}, TITLE = {Interactive control for physically-based animation}, BOOKTITLE = {Proceedings of the 27th annual conference on Computer graphics and interactive techniques}, YEAR = {2000}, ISBN = {1-58113-208-5}, PAGES = {201--208}, DOI = {http://doi.acm.org/10.1145/344779.344876}, PUBLISHER = {ACM Press/Addison-Wesley Publishing Co.} } @INPROCEEDINGS{popovic:rigid:sig2000, AUTHOR = {Jovan Popovic' and Steven M. Seitz and Michael Erdmann and Zoran Popovic' and Andrew Witkin}, TITLE = {Interactive manipulation of rigid body simulations}, BOOKTITLE = {Proceedings of the 27th annual conference on Computer graphics and interactive techniques}, YEAR = {2000}, ISBN = {1-58113-208-5}, PAGES = {209--217}, DOI = {http://doi.acm.org/10.1145/344779.344880}, PUBLISHER = {ACM Press/Addison-Wesley Publishing Co.}, PDF = {pdf/p209-popovic.pdf} } @INPROCEEDINGS{Neyret:1995:AT, AUTHOR = {Fabrice Neyret}, TITLE = {Animated Texels}, BOOKTITLE = {Computer Animation and Simulation '95}, YEAR = {1995}, MONTH = SEP, NOTE = {ISBN 3-211-82738-2}, ORGANIZATION = {Eurographics}, PUBLISHER = {Springer-Verlag}, EDITOR = {Dimitri Terzopoulos and Daniel Thalmann}, PAGES = {97--103} } @INPROCEEDINGS{Perbet:2001:APRT, AUTHOR = {Frank Perbet and Marie-Paule Cani}, TITLE = {Animating Prairies in real-time}, YEAR = {2001}, ORGANIZATION = {Eurographics}, PUBLISHER = {ACM Press}, EDITOR = {Stephen N. Spencer}, BOOKTITLE = {Proceedings of the Conference on the 2001 Symposium on interactive {3D} Graphics} } @INPROCEEDINGS{134083, AUTHOR = {Michael F. Cohen}, TITLE = {Interactive spacetime control for animation}, BOOKTITLE = {Proceedings of the 19th annual conference on Computer graphics and interactive techniques}, YEAR = {1992}, ISBN = {0-89791-479-1}, PAGES = {293--302}, DOI = {http://doi.acm.org/10.1145/133994.134083}, PUBLISHER = {ACM Press} } @INPROCEEDINGS{218411, AUTHOR = {Radek Grzeszczuk and Demetri Terzopoulos}, TITLE = {Automated learning of muscle-actuated locomotion through control abstraction}, BOOKTITLE = {Proceedings of the 22nd annual conference on Computer graphics and interactive techniques}, YEAR = {1995}, ISBN = {0-89791-701-4}, PAGES = {63--70}, DOI = {http://doi.acm.org/10.1145/218380.218411}, PUBLISHER = {ACM Press}, ANNOTATE = {The paper describes a method by which artificial animals "learn" muscle-actuated motion from first principles. The idea is to have the animal learn to control its muscles to move in a natural fashion. The notion of "what is natural" is captured by objective functions; these functions are defined both in terms of the control function and the computed trajectories. Biomechanical models are constructed as spring-mass systems, so muscle contraction is like a spring that contracts (length is shorter than rest length). Another contribution is multi-level abstraction. Once the animal learns the basics (through a slow process), many of these basic motions can be abstracted away and represented in a more compact fashion. Then the animal can proceed to learn higher-level motions; the example they use is tricks that one often sees at SeaWorld. Optimization processes are done both using a greedy search over the next time interval and simulated annealing.} } @INPROCEEDINGS{344865, AUTHOR = {Matthew Brand and Aaron Hertzmann}, TITLE = {Style machines}, BOOKTITLE = {Proceedings of the 27th annual conference on Computer graphics and interactive techniques}, YEAR = {2000}, ISBN = {1-58113-208-5}, PAGES = {183--192}, DOI = {http://doi.acm.org/10.1145/344779.344865}, PUBLISHER = {ACM Press/Addison-Wesley Publishing Co.} } @INPROCEEDINGS{chaitin-graph, AUTHOR = {Gregory J. Chaitin and March A. Auslander and Ashok K. Chandra and John Cocke and Martin E. Hopkins and Peter W. Markstein}, TITLE = {Register Allocation Via Coloring}, BOOKTITLE = {Computer Languages}, VOLUME = {6}, PAGES = {47-57}, YEAR = {1981} } @INBOOK{compiler:lcc, AUTHOR = {Fraser, Ch. and Hanson, D. R.}, KEY = {Fraser1995}, TITLE = {A Retargetable {C} Compiler: Design and Implementation}, PUBLISHER = {Addison-Wesley}, YEAR = 1995, PAGES = {373--406} } @INBOOK{compiler:muchnick, AUTHOR = {Muchnick, S.}, KEY = {Muchnick1997}, TITLE = {Advanced Compiler Design and Implementation}, PAGES = {181-191}, PUBLISHER = {Morgan Kaufmann Publishers}, YEAR = 1997 } @INBOOK{compiler:dragon, AUTHOR = {Aho, A. V. and Sethi, R. and Ullman, J. D.}, KEY = {Aho1986}, TITLE = {Compilers: Principles, Techniques and Tools}, PAGES = {602}, PUBLISHER = {Addison-Wesley}, YEAR = 1986 } @INPROCEEDINGS{cook:shadetrees:sig1984, AUTHOR = {Robert L. Cook}, TITLE = {Shade trees}, BOOKTITLE = {Proceedings of the 11th annual conference on Computer graphics and interactive techniques}, YEAR = {1984}, ISBN = {0-89791-138-5}, PAGES = {223--231}, PUBLISHER = {ACM Press}, PDF = {pdf/p223-cook.pdf} } @INPROCEEDINGS{peercy:isl:sig2000, AUTHOR = {Mark S. Peercy and Marc Olano and John Airey and P. Jeffrey Ungar}, TITLE = {Interactive multi-pass programmable shading}, BOOKTITLE = {Proceedings of the 27th annual conference on Computer graphics and interactive techniques}, YEAR = {2000}, ISBN = {1-58113-208-5}, PAGES = {425--432}, DOI = {http://doi.acm.org/10.1145/344779.344976}, PUBLISHER = {ACM Press/Addison-Wesley Publishing Co.}, PDF = {pdf/p425-peercy.pdf} } @INPROCEEDINGS{Mark01, AUTHOR = {William R. Mark and Kekoa Proudfoot}, TITLE = {The {F}-buffer: a rasterization-order {FIFO} buffer for multi-pass rendering}, BOOKTITLE = {Proceedings of the ACM SIGGRAPH/Eurographics Workshop on Graphics Hardware}, YEAR = {2001}, ISBN = {1-58113-407-X}, PAGES = {57--64}, LOCATION = {Los Angeles, California, United States}, DOI = {http://doi.acm.org/10.1145/383507.383527} } @INPROCEEDINGS{mark:vliw:hwws2001, AUTHOR = {William R. Mark and Kekoa Proudfoot}, TITLE = {Compiling to a {VLIW} fragment pipeline}, BOOKTITLE = {Proceedings of the ACM SIGGRAPH/EUROGRAPHICS workshop on on Graphics hardware}, YEAR = {2001}, ISBN = {1-58113-407-X}, PAGES = {47--56}, LOCATION = {Los Angeles, California, United States}, DOI = {http://doi.acm.org/10.1145/383507.383526}, PUBLISHER = {ACM Press}, PDF = {pdf/p47-mark.pdf}, HTTP = {notes/p47-mark.txt} } @INPROCEEDINGS{lindholm:vtx:sig2001, AUTHOR = {Erik Lindholm and Mark J. Kligard and Henry Moreton}, TITLE = {A user-programmable vertex engine}, BOOKTITLE = {Proceedings of the 28th annual conference on Computer graphics and interactive techniques}, YEAR = {2001}, ISBN = {1-58113-374-X}, PAGES = {149--158}, DOI = {http://doi.acm.org/10.1145/383259.383274}, PUBLISHER = {ACM Press}, PDF = {pdf/p149-lindholm.pdf} } @INPROCEEDINGS{proudfoot:rtsl:sig2001, AUTHOR = {Kekoa Proudfoot and William R. Mark and Pat Hanrahan}, TITLE = {A real-time procedural shading system for programmable graphics hardware}, BOOKTITLE = {Proceedings of the 28th annual conference on Computer graphics and interactive techniques}, YEAR = {2001}, ISBN = {1-58113-374-X}, PAGES = {159--170}, DOI = {http://doi.acm.org/10.1145/383259.383275}, PUBLISHER = {ACM Press}, PDF = {pdf/p159-proudfoot.pdf} } @INPROCEEDINGS{hanrahan:sl:sig1990, AUTHOR = {Pat Hanrahan and Jim Lawson}, TITLE = {A language for shading and lighting calculations}, BOOKTITLE = {Proceedings of the 17th annual conference on Computer graphics and interactive techniques}, YEAR = {1990}, ISBN = {0-201-50933-4}, PAGES = {289--298}, LOCATION = {Dallas, TX, USA}, DOI = {http://doi.acm.org/10.1145/97879.97911}, PUBLISHER = {ACM Press}, PDF = {pdf/p289-hanrahan.pdf} } @INPROCEEDINGS{perlin:imagesyn:sig1985, AUTHOR = {Ken Perlin}, TITLE = {An image synthesizer}, BOOKTITLE = {Proceedings of the 12th annual conference on Computer graphics and interactive techniques}, YEAR = {1985}, ISBN = {0-89791-166-0}, PAGES = {287--296}, DOI = {http://doi.acm.org/10.1145/325334.325247}, PUBLISHER = {ACM Press}, PDF = {pdf/p287-perlin.pdf} } @INPROCEEDINGS{olano:pixelflow:sig1998, AUTHOR = {Marc Olano and Anselmo Lastra}, TITLE = {A shading language on graphics hardware: the pixelflow shading system}, BOOKTITLE = {Proceedings of the 25th annual conference on Computer graphics and interactive techniques}, YEAR = {1998}, ISBN = {0-89791-999-8}, PAGES = {159--168}, DOI = {http://doi.acm.org/10.1145/280814.280857}, PUBLISHER = {ACM Press}, PDF = {pdf/p159-olano.pdf} } @INPROCEEDINGS{Molnar92, AUTHOR = {Steven Molnar and John Eyles and John Poulton}, TITLE = {PixelFlow: high-speed rendering using image composition}, BOOKTITLE = {Proceedings of ACM SIGGRAPH}, YEAR = {1992}, ISBN = {0-89791-479-1}, PAGES = {231--240}, DOI = {http://doi.acm.org/10.1145/133994.134067} } @INPROCEEDINGS{569056, AUTHOR = {Eric Chan and Ren Ng and Pradeep Sen and Kekoa Proudfoot and Pat Hanrahan}, TITLE = {Efficient partitioning of fragment shaders for multipass rendering on programmable graphics hardware}, BOOKTITLE = {Proceedings of the conference on Graphics hardware 2002}, YEAR = {2002}, ISBN = {1-58113-580-7}, PAGES = {69--78}, LOCATION = {Saarbrucken, Germany}, PUBLISHER = {Eurographics Association} } @ARTICLE{gritz96bmrt, AUTHOR = {Larry Gritz and James K. Hahn}, TITLE = {{BMRT}: {A} global illumination implementation of the {RenderMan} standard}, JOURNAL = {Journal of Graphics Tools: JGT}, VOLUME = {1}, NUMBER = {3}, MONTH = {????}, PAGES = {29--47}, YEAR = {1996} } @INPROCEEDINGS{97903, AUTHOR = {Pat Hanrahan and Paul Haeberli}, TITLE = {Direct WYSIWYG painting and texturing on 3D shapes}, BOOKTITLE = {Proceedings of the 17th annual conference on Computer graphics and interactive techniques}, YEAR = {1990}, ISBN = {0-201-50933-4}, PAGES = {215--223}, DOI = {http://doi.acm.org/10.1145/97879.97903}, PUBLISHER = {ACM Press} } @INPROCEEDINGS{agrawala:route:sig2001, AUTHOR = {Maneesh Agrawala and Chris Stolte}, TITLE = {Rendering effective route maps: improving usability through generalization}, BOOKTITLE = {Proceedings of the 28th annual conference on Computer graphics and interactive techniques}, YEAR = {2001}, ISBN = {1-58113-374-X}, PAGES = {241--249}, DOI = {http://doi.acm.org/10.1145/383259.383286}, PUBLISHER = {ACM Press}, ANNOTATE = {The paper describes how to render better, more effective route maps (see www.mapblast.com) using a system called LineDrive. Standard computer-generated route maps suffer because of a constant scale factor (which makes short roads hard to see) and extraneous detail that may be far from the route itself. The goal of this research is to make computer-generated route maps resemble hand-drawn maps, which are simpler, cleaner, and easier to understand. First, the paper analyzes a set of cartographic generalization techniques, which they call distortion, simplification, and abstraction. The distortion means stretching and shrinking road lengths and angles to make all parts visible. Simplification means removing unneeded kinks and bends in the road so that the overall appearance is smoother. Abstraction means choosing to show only the essential information, and hiding the rest. When performing these operations, the key is to avoid introducing certain problems, such as false or missing intersections, inconsistent turns, or other more global issues, such as altering the overall orientation too much. The LineDrive system implements these ideas using a simulated annealing algorithm. The paper describes a number of "scoring" functions and "perturbation" functions for guiding the algorithm. }, PDF = {pdf/p241-agrawala.pdf} } @INPROCEEDINGS{becker:bump:sig1993, AUTHOR = {Barry G. Becker and Nelson L. Max}, TITLE = {Smooth transitions between bump rendering algorithms}, BOOKTITLE = {Proceedings of the 20th annual conference on Computer graphics and interactive techniques}, YEAR = {1993}, ISBN = {0-89791-601-8}, PAGES = {183--190}, DOI = {http://doi.acm.org/10.1145/166117.166141}, PUBLISHER = {ACM Press}, PDF = {pdf/p183-becker.pdf} } @INPROCEEDINGS{guenter:shaders:sig1995, AUTHOR = {Brian Guenter and Todd B. Knoblock and Erik Ruf}, TITLE = {Specializing shaders}, BOOKTITLE = {Proceedings of the 22nd annual conference on Computer graphics and interactive techniques}, YEAR = {1995}, ISBN = {0-89791-701-4}, PAGES = {343--350}, DOI = {http://doi.acm.org/10.1145/218380.218470}, PUBLISHER = {ACM Press}, PDF = {pdf/p343-guenter.pdf} } @INPROCEEDINGS{carpenter:abuffer:sig1984, AUTHOR = {Loren Carpenter}, TITLE = {The A -buffer, an antialiased hidden surface method}, BOOKTITLE = {Proceedings of the 11th annual conference on Computer graphics and interactive techniques}, YEAR = {1984}, ISBN = {0-89791-138-5}, PAGES = {103--108}, PUBLISHER = {ACM Press}, PDF = {pdf/p103-carpenter.pdf} } @INPROCEEDINGS{akeley:polygon:sig1988, AUTHOR = {Kurt Akeley and Tom Jermoluk}, TITLE = {High-performance polygon rendering}, BOOKTITLE = {Proceedings of the 15th annual conference on Computer graphics and interactive techniques}, YEAR = {1988}, ISBN = {0-89791-275-6}, PAGES = {239--246}, DOI = {http://doi.acm.org/10.1145/54852.378516}, PUBLISHER = {ACM Press}, PDF = {pdf/p239-akeley.pdf} } @INPROCEEDINGS{akeley:re:sig1993, AUTHOR = {Kurt Akeley}, TITLE = {Reality Engine graphics}, BOOKTITLE = {Proceedings of the 20th annual conference on Computer graphics and interactive techniques}, YEAR = {1993}, ISBN = {0-89791-601-8}, PAGES = {109--116}, DOI = {http://doi.acm.org/10.1145/166117.166131}, PUBLISHER = {ACM Press}, PDF = {pdf/p109-akeley.pdf} } @INPROCEEDINGS{atherton:shadow:sig1978, AUTHOR = {Peter Atherton and Kevin Weiler and Donald Greenberg}, TITLE = {Polygon shadow generation}, BOOKTITLE = {Proceedings of the 5th annual conference on Computer graphics and interactive techniques}, YEAR = {1978}, PAGES = {275--281}, DOI = {http://doi.acm.org/10.1145/800248.807403}, PUBLISHER = {ACM Press}, PDF = {pdf/p275-atherton.pdf} } @INPROCEEDINGS{blinn:bump:sig1978, AUTHOR = {James F. Blinn}, TITLE = {Simulation of wrinkled surfaces}, BOOKTITLE = {Proceedings of the 5th annual conference on Computer graphics and interactive techniques}, YEAR = {1978}, PAGES = {286--292}, DOI = {http://doi.acm.org/10.1145/800248.507101}, PUBLISHER = {ACM Press}, PDF = {pdf/p286-blinn.pdf} } @ARTICLE{blinn:texreflect:cacm1976, AUTHOR = {James F. Blinn and Martin E. Newell}, TITLE = {Texture and reflection in computer generated images}, JOURNAL = {Communications of the ACM}, VOLUME = {19}, NUMBER = {10}, YEAR = {1976}, ISSN = {0001-0782}, PAGES = {542--547}, DOI = {http://doi.acm.org/10.1145/360349.360353}, PUBLISHER = {ACM Press}, PDF = {pdf/p542-blinn.pdf} } @INPROCEEDINGS{carr:ray:hwws2002, AUTHOR = {Nathan A. Carr and Jesse D. Hall and John C. Hart}, TITLE = {The ray engine}, BOOKTITLE = {Proceedings of the ACM SIGGRAPH/EUROGRAPHICS conference on Graphics hardware}, YEAR = {2002}, ISBN = {1-58113-580-7}, PAGES = {37--46}, LOCATION = {Saarbrucken, Germany}, PUBLISHER = {Eurographics Association}, PDF = {pdf/RayEngine-gh02.pdf} } @INPROCEEDINGS{catmull:hsa:sig1978, AUTHOR = {Edwin Catmull}, TITLE = {A hidden-surface algorithm with anti-aliasing}, BOOKTITLE = {Proceedings of the 5th annual conference on Computer graphics and interactive techniques}, YEAR = {1978}, PAGES = {6--11}, DOI = {http://doi.acm.org/10.1145/800248.807360}, PUBLISHER = {ACM Press}, PDF = {pdf/p6-catmull.pdf} } @INPROCEEDINGS{williams:pp:sig1983, AUTHOR = {Lance Williams}, TITLE = {Pyramidal parametrics}, BOOKTITLE = {Proceedings of the 10th annual conference on Computer graphics and interactive techniques}, YEAR = {1983}, ISBN = {0-89791-109-1}, PAGES = {1--11}, LOCATION = {Detroit, Michigan, United States}, PUBLISHER = {ACM Press}, PDF = {pdf/p1-williams.pdf} } @INPROCEEDINGS{soler:conv:sig1998, AUTHOR = {Cyril Soler and Frangois X. Sillion}, TITLE = {Fast calculation of soft shadow textures using convolution}, BOOKTITLE = {Proceedings of the 25th annual conference on Computer graphics and interactive techniques}, YEAR = {1998}, ISBN = {0-89791-999-8}, PAGES = {321--332}, DOI = {http://doi.acm.org/10.1145/280814.280927}, PUBLISHER = {ACM Press}, PDF = {pdf/p321-soler.pdf} } @INPROCEEDINGS{purcell:rtongfx:sig2002, AUTHOR = {Timothy J. Purcell and Ian Buck and William R. Mark and Pat Hanrahan}, TITLE = {Ray tracing on programmable graphics hardware}, BOOKTITLE = {Proceedings of the 29th annual conference on Computer graphics and interactive techniques}, YEAR = {2002}, ISBN = {1-58113-521-1}, PAGES = {703--712}, LOCATION = {San Antonio, Texas}, DOI = {http://doi.acm.org/10.1145/566570.566640}, PUBLISHER = {ACM Press}, PDF = {pdf/rtongfx.pdf} } @INPROCEEDINGS{harris:sim:hwws2002, AUTHOR = {Mark J. Harris and Greg Coombe and Thorsten Scheuermann and Anselmo Lastra}, TITLE = {Physically-based visual simulation on graphics hardware}, BOOKTITLE = {Proceedings of the ACM SIGGRAPH/EUROGRAPHICS conference on Graphics hardware}, YEAR = {2002}, ISBN = {1-58113-580-7}, PAGES = {109--118}, LOCATION = {Saarbrucken, Germany}, PUBLISHER = {Eur