[ { "id": "reimer-2020-CBG", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "The Influence of Full-Body Representation on Translation and CurvatureGain", "date": "2020-03", "abstract": "Redirected Walking (RDW) techniques allow users to navigate immersive virtual environments much larger than the available tracking space by natural walking. Whereas several approaches exist, numerous RDW techniques operate by applying gains of different types to the user’s viewport. These gains must remain undetected by the user in order for a RDW technique to support plausible navigation within a virtual environment. The present paper explores the relationship between detection thresholds of redirection gains and the presence of a self-avatar within the virtual environment. In four psychophysical experiments we estimated the thresholds of curvature and translation gain with and without a virtual body. The goal was to evaluate whether a full-body representation has an impact on the detection thresholds of these gains. The results indicate that although the presence of a virtual body does not significantly affect the detectability of these gains, it supports users with the illusion of easier detection. We discuss the possibility of a future combination of full-body representations and redirected walking and if these findings influence the implementation of large virtual environments with immersive virtual body representation.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "banner_paper", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 1772, "image_height": 591, "name": "reimer-2020-CBG-banner_paper.jpg", "type": "image/jpeg", "size": 165848, "path": "Publication:reimer-2020-CBG", "url": "https://www.cg.tuwien.ac.at/research/publications/2020/reimer-2020-CBG/reimer-2020-CBG-banner_paper.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2020/reimer-2020-CBG/reimer-2020-CBG-banner_paper:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 1832, 1880, 378, 452 ], "booktitle": "2020 IEEE Conference on Virtual Reality and 3D User Interfaces Abstractsand Workshops (VRW)", "cfp": { "name": "VHCIE@IEEEVR2020 - Submission.pdf", "type": "application/pdf", "error": "0", "size": "40118", "orig_name": "VHCIE@IEEEVR2020 - Submission.pdf", "ext": "pdf" }, "doi": "10.1109/VRW50115.2020.00032", "event": "IEEEVR 2020", "isbn": "978-1-7281-6532-5", "issn": "978-1-7281-6533-2", "location": "Atlanta, US", "pages": "154-159", "pages_from": "154", "pages_to": "159", "publisher": "IEEE", "research_areas": [ "VR" ], "keywords": [ "redirected walking", "body representation", "curvature gain", "translation gain" ], "weblinks": [ { "href": "https://ieeexplore.ieee.org/document/9090671", "caption": null, "description": null, "main_file": 0 } ], "files": [ { "description": null, "filetitle": "banner_paper", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 1772, "image_height": 591, "name": "reimer-2020-CBG-banner_paper.jpg", "type": "image/jpeg", "size": 165848, "path": "Publication:reimer-2020-CBG", "url": "https://www.cg.tuwien.ac.at/research/publications/2020/reimer-2020-CBG/reimer-2020-CBG-banner_paper.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2020/reimer-2020-CBG/reimer-2020-CBG-banner_paper:thumb{{size}}.png" } ], "projects_workgroups": [ "vr" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2020/reimer-2020-CBG/", "__class": "Publication" }, { "id": "hecher-2014-MH", "type_id": "journalpaper_notalk", "tu_id": null, "repositum_id": null, "title": "A Comparative Perceptual Study of Soft Shadow Algorithms", "date": "2014-06", "abstract": "We performed a perceptual user study of algorithms that approximate soft shadows in real time. Although a huge body of soft-shadow algorithms have been proposed, to our knowledge this is the first methodical study for comparing different real-time shadow algorithms with respect to their plausibility and visual appearance. We evaluated soft-shadow properties like penumbra overlap with respect to their relevance to shadow perception in a systematic way, and we believe that our results can be useful to guide future shadow approaches in their methods of evaluation. In this study, we also capture the predominant case of an inexperienced user observing shadows without comparing to a reference solution, such as when watching a movie or playing a game. One important result of this experiment is to scientifically verify that real-time soft-shadow algorithms, despite having become physically based and very realistic, can nevertheless be intuitively distinguished from a correct solution by untrained users.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 978, "image_height": 850, "name": "hecher-2014-MH-image.png", "type": "image/png", "size": 245534, "path": "Publication:hecher-2014-MH", "url": "https://www.cg.tuwien.ac.at/research/publications/2014/hecher-2014-MH/hecher-2014-MH-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2014/hecher-2014-MH/hecher-2014-MH-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 779, 660, 326, 452, 193 ], "issn": "1544-3558", "journal": "ACM Transactions on Applied Perception", "number": "5", "pages_from": "5:1", "pages_to": "5:21", "volume": "11", "research_areas": [ "Perception", "Rendering" ], "keywords": [ "Perception Studies", "Soft Shadows" ], "weblinks": [ { "href": "http://doi.acm.org/10.1145/2620029", "caption": null, "description": null, "main_file": 0 } ], "files": [ { "description": null, "filetitle": "draft", "main_file": false, "use_in_gallery": false, "access": "public", "name": "hecher-2014-MH-draft.pdf", "type": "application/pdf", "size": 7731118, "path": "Publication:hecher-2014-MH", "url": "https://www.cg.tuwien.ac.at/research/publications/2014/hecher-2014-MH/hecher-2014-MH-draft.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2014/hecher-2014-MH/hecher-2014-MH-draft:thumb{{size}}.png" }, { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 978, "image_height": 850, "name": "hecher-2014-MH-image.png", "type": "image/png", "size": 245534, "path": "Publication:hecher-2014-MH", "url": "https://www.cg.tuwien.ac.at/research/publications/2014/hecher-2014-MH/hecher-2014-MH-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2014/hecher-2014-MH/hecher-2014-MH-image:thumb{{size}}.png" } ], "projects_workgroups": [ "Mofa" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2014/hecher-2014-MH/", "__class": "Publication" }, { "id": "SCHWAERZLER-2013-FPCSS", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Fast Percentage Closer Soft Shadows using Temporal Coherence", "date": "2013-03", "abstract": "We propose a novel way to efficiently calculate soft shadows in real-time applications by overcoming the high computational effort involved with the complex corresponding visibility estimation each frame: We exploit the temporal coherence prevalent in typical scene movement, making the estimation of a new shadow value only necessary whenever regions are newly disoccluded due to camera adjustment, or the shadow situation changes due to object movement. By extending the typical shadow mapping algorithm by an additional light-weight buffer for the tracking of dynamic scene objects, we can robustly and efficiently detect all screen space fragments that need to be updated, including not only the moving objects themselves, but also the soft shadows they cast. \n\nBy applying this strategy to the popular Percentage Closer Soft Shadow algorithm (PCSS), we double rendering performance in scenes with both static and dynamic objects - as prevalent in various 3D game levels - while maintaining the visual quality of the original approach.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1010, "image_height": 917, "name": "SCHWAERZLER-2013-FPCSS-image.png", "type": "image/png", "size": 839905, "path": "Publication:SCHWAERZLER-2013-FPCSS", "url": "https://www.cg.tuwien.ac.at/research/publications/2013/SCHWAERZLER-2013-FPCSS/SCHWAERZLER-2013-FPCSS-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2013/SCHWAERZLER-2013-FPCSS/SCHWAERZLER-2013-FPCSS-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 678, 659, 452, 193 ], "address": "New York, NY, USA", "booktitle": "Proceedings of ACM Symposium on Interactive 3D Graphics and Games 2013", "date_from": "2013-03-21", "date_to": "2013-03-23", "isbn": "978-1-4503-1956-0", "lecturer": [ 678 ], "location": "Orlando, Florida", "pages_from": "79", "pages_to": "86", "publisher": "ACM", "research_areas": [ "Rendering" ], "keywords": [ "real-time", "temporal coherence", "soft shadows" ], "weblinks": [], "files": [ { "description": null, "filetitle": "draft", "main_file": true, "use_in_gallery": false, "access": "public", "name": "SCHWAERZLER-2013-FPCSS-draft.pdf", "type": "application/pdf", "size": 32246841, "path": "Publication:SCHWAERZLER-2013-FPCSS", "url": "https://www.cg.tuwien.ac.at/research/publications/2013/SCHWAERZLER-2013-FPCSS/SCHWAERZLER-2013-FPCSS-draft.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2013/SCHWAERZLER-2013-FPCSS/SCHWAERZLER-2013-FPCSS-draft:thumb{{size}}.png" }, { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1010, "image_height": 917, "name": "SCHWAERZLER-2013-FPCSS-image.png", "type": "image/png", "size": 839905, "path": "Publication:SCHWAERZLER-2013-FPCSS", "url": "https://www.cg.tuwien.ac.at/research/publications/2013/SCHWAERZLER-2013-FPCSS/SCHWAERZLER-2013-FPCSS-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2013/SCHWAERZLER-2013-FPCSS/SCHWAERZLER-2013-FPCSS-image:thumb{{size}}.png" }, { "description": null, "filetitle": "video", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 848, "preview_image_height": 480, "name": "SCHWAERZLER-2013-FPCSS-video.mp4", "type": "video/mp4", "size": 57833765, "path": "Publication:SCHWAERZLER-2013-FPCSS", "preview_name": "SCHWAERZLER-2013-FPCSS-video:preview.png", "preview_type": "image/jpeg", "preview_size": 24461, "url": "https://www.cg.tuwien.ac.at/research/publications/2013/SCHWAERZLER-2013-FPCSS/SCHWAERZLER-2013-FPCSS-video.mp4", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2013/SCHWAERZLER-2013-FPCSS/SCHWAERZLER-2013-FPCSS-video:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2013/SCHWAERZLER-2013-FPCSS/SCHWAERZLER-2013-FPCSS-video:video.mp4" } ], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2013/SCHWAERZLER-2013-FPCSS/", "__class": "Publication" }, { "id": "SCHERZER-2012-TCM", "type_id": "journalpaper_notalk", "tu_id": null, "repositum_id": null, "title": "Temporal Coherence Methods in Real-Time Rendering", "date": "2012-12", "abstract": "Nowadays, there is a strong trend towards rendering to higher-resolution displays and at high frame rates. This development aims at delivering more detail and better accuracy, but it also comes at a significant cost.\nAlthough graphics cards continue to evolve with an ever-increasing amount of computational power, the speed gain is easily counteracted by increasingly complex and sophisticated shading computations. For real-time applications, the direct consequence is that image resolution and temporal resolution are often the first candidates to bow to the performance constraints (e.g., although full HD is possible, PS3 and XBox often render at lower resolutions).\n\nIn order to achieve high-quality rendering at a lower cost, one can exploit temporal coherence (TC). The underlying observation is that a higher resolution and frame rate do not necessarily imply a much higher workload, but a larger amount of redundancy and a higher potential for amortizing rendering over several frames. In this survey, we investigate methods that make use of this principle and provide practical and theoretical advice on how to exploit temporal coherence for performance optimization. These methods not only allow incorporating more computationally intensive shading effects into many existing applications, but also offer exciting opportunities for extending high-end graphics applications to lower-spec consumer-level hardware. To this end, we first introduce the notion and main concepts of TC, including an overview of historical methods. We then describe a general approach, image-space reprojection, with several implementation algorithms that facilitate reusing shading information across adjacent frames. We also discuss data-reuse quality and performance related to reprojection techniques. Finally, in the second half of this survey, we demonstrate various applications that exploit TC in real-time rendering.\n", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 707, "image_height": 530, "name": "SCHERZER-2012-TCM-.png", "type": "image/png", "size": 337791, "path": "Publication:SCHERZER-2012-TCM", "url": "https://www.cg.tuwien.ac.at/research/publications/2012/SCHERZER-2012-TCM/SCHERZER-2012-TCM-.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2012/SCHERZER-2012-TCM/SCHERZER-2012-TCM-:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452, 868, 326, 899, 900, 193, 823 ], "issn": "1467-8659", "journal": "Computer Graphics Forum", "number": "8", "pages_from": "2378", "pages_to": "2408", "volume": "31", "research_areas": [ "Rendering" ], "keywords": [ "remote rendering; sampling", "perception-based rendering", "occlusion culling", "non-photo-realistic rendering", "level-of-detail", "large data visualization", "image-based rendering", "global illumination", "frame interpolation", "anti-aliasing", "shadows", "streaming", "temporal coherance", "upsampling" ], "weblinks": [ { "href": "http://onlinelibrary.wiley.com/doi/10.1111/j.1467-8659.2012.03075.x/abstract", "caption": null, "description": null, "main_file": 0 } ], "files": [ { "description": null, "filetitle": "", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 707, "image_height": 530, "name": "SCHERZER-2012-TCM-.png", "type": "image/png", "size": 337791, "path": "Publication:SCHERZER-2012-TCM", "url": "https://www.cg.tuwien.ac.at/research/publications/2012/SCHERZER-2012-TCM/SCHERZER-2012-TCM-.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2012/SCHERZER-2012-TCM/SCHERZER-2012-TCM-:thumb{{size}}.png" } ], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2012/SCHERZER-2012-TCM/", "__class": "Publication" }, { "id": "SCHWAERZLER-2012-FAS", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Fast Accurate Soft Shadows with Adaptive Light Source Sampling", "date": "2012-11", "abstract": "Physically accurate soft shadows in 3D applications can be simulated by taking multiple samples from all over the area light source and accumulating them. Due to the unpredictability of the size of the penumbra regions, the required sampling density has to be high in order to guarantee smooth shadow transitions in all cases. Hence, several hundreds of shadow maps have to be evaluated in any scene configuration, making the process computationally expensive. \n\nThus, we suggest an adaptive light source subdivision approach to select the sampling points adaptively. The main idea is to start with a few samples on the area light, evaluating there differences using hardware occlusion queries, and adding more sampling points if necessary.\n\nOur method is capable of selecting and rendering only the samples which contribute to an improved shadow quality, and hence generate shadows of comparable quality and accuracy. Even though additional calculation time is needed for the comparison step, this method saves valuable rendering time and achieves interactive to real-time frame rates in many cases where a brute force sampling method does not.\n", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 407, "image_height": 248, "name": "SCHWAERZLER-2012-FAS-image.png", "type": "image/png", "size": 175885, "path": "Publication:SCHWAERZLER-2012-FAS", "url": "https://www.cg.tuwien.ac.at/research/publications/2012/SCHWAERZLER-2012-FAS/SCHWAERZLER-2012-FAS-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2012/SCHWAERZLER-2012-FAS/SCHWAERZLER-2012-FAS-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 678, 326, 452, 193 ], "booktitle": "Proceedings of the 17th International Workshop on Vision, Modeling, and Visualization (VMV 2012)", "date_from": "2012-11-12", "date_to": "2012-11-14", "isbn": "978-3-905673-95-1", "lecturer": [ 678 ], "location": "Magdeburg, Germany", "pages_from": "39", "pages_to": "46", "publisher": "Eurographics Association", "research_areas": [ "Rendering" ], "keywords": [ "soft shadows", "real-time rendering" ], "weblinks": [], "files": [ { "description": null, "filetitle": "draft", "main_file": true, "use_in_gallery": false, "access": "public", "name": "SCHWAERZLER-2012-FAS-draft.pdf", "type": "application/pdf", "size": 9496649, "path": "Publication:SCHWAERZLER-2012-FAS", "url": "https://www.cg.tuwien.ac.at/research/publications/2012/SCHWAERZLER-2012-FAS/SCHWAERZLER-2012-FAS-draft.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2012/SCHWAERZLER-2012-FAS/SCHWAERZLER-2012-FAS-draft:thumb{{size}}.png" }, { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 407, "image_height": 248, "name": "SCHWAERZLER-2012-FAS-image.png", "type": "image/png", "size": 175885, "path": "Publication:SCHWAERZLER-2012-FAS", "url": "https://www.cg.tuwien.ac.at/research/publications/2012/SCHWAERZLER-2012-FAS/SCHWAERZLER-2012-FAS-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2012/SCHWAERZLER-2012-FAS/SCHWAERZLER-2012-FAS-image:thumb{{size}}.png" }, { "description": null, "filetitle": "slides", "main_file": true, "use_in_gallery": false, "access": "public", "name": "SCHWAERZLER-2012-FAS-slides.pptx", "type": "application/zip", "size": 50780845, "path": "Publication:SCHWAERZLER-2012-FAS", "url": "https://www.cg.tuwien.ac.at/research/publications/2012/SCHWAERZLER-2012-FAS/SCHWAERZLER-2012-FAS-slides.pptx", "thumb_image_sizes": [] }, { "description": null, "filetitle": "video", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 1024, "preview_image_height": 768, "name": "SCHWAERZLER-2012-FAS-video.wmv", "type": "application/octet-stream", "size": 54909947, "path": "Publication:SCHWAERZLER-2012-FAS", "preview_name": "SCHWAERZLER-2012-FAS-video:preview.png", "preview_type": "image/jpeg", "preview_size": 42596, "url": "https://www.cg.tuwien.ac.at/research/publications/2012/SCHWAERZLER-2012-FAS/SCHWAERZLER-2012-FAS-video.wmv", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2012/SCHWAERZLER-2012-FAS/SCHWAERZLER-2012-FAS-video:thumb{{size}}.png" } ], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2012/SCHWAERZLER-2012-FAS/", "__class": "Publication" }, { "id": "MATTAUSCH-2012-TIS", "type_id": "journalpaper", "tu_id": null, "repositum_id": null, "title": "Tessellation-Independent Smooth Shadow Boundaries", "date": "2012-06", "abstract": "We propose an efficient and light-weight solution for rendering smooth shadow boundaries that do not reveal the tessellation of the shadow-casting geometry. Our algorithm reconstructs the smooth contours of the underlying mesh and then extrudes shadow volumes from the smooth silhouettes to render the shadows. For this purpose we propose an improved silhouette reconstruction using the vertex normals of the underlying smooth mesh. Then our method subdivides the silhouette loops until the contours are sufficiently smooth and project to smooth shadow boundaries. This approach decouples the shadow smoothness from the tessellation of the geometry and can be used to maintain equally high shadow quality for multiple LOD levels. It causes only a minimal change to the fill rate, which is the well-known bottleneck of shadow volumes, and hence has only small overhead.\n", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1280, "image_height": 720, "name": "MATTAUSCH-2012-TIS-.png", "type": "image/png", "size": 57545, "path": "Publication:MATTAUSCH-2012-TIS", "url": "https://www.cg.tuwien.ac.at/research/publications/2012/MATTAUSCH-2012-TIS/MATTAUSCH-2012-TIS-.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2012/MATTAUSCH-2012-TIS/MATTAUSCH-2012-TIS-:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 326, 452, 193, 1040 ], "date_from": "2012-06-27", "date_to": "2012-06-29", "event": "EUROGRAPHICS Symposium on Rendering 2012", "issn": "1467-8659", "journal": "Computer Graphics Forum", "lecturer": [ 326 ], "number": "31", "pages_from": "1465", "pages_to": "1470", "volume": "4", "research_areas": [ "Rendering" ], "keywords": [ "real-time rendering", "shadows" ], "weblinks": [ { "href": "http://onlinelibrary.wiley.com/doi/10.1111/j.1467-8659.2012.03142.x/abstract", "caption": null, "description": null, "main_file": 0 } ], "files": { "0": { "description": null, "filetitle": "", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1280, "image_height": 720, "name": "MATTAUSCH-2012-TIS-.png", "type": "image/png", "size": 57545, "path": "Publication:MATTAUSCH-2012-TIS", "url": "https://www.cg.tuwien.ac.at/research/publications/2012/MATTAUSCH-2012-TIS/MATTAUSCH-2012-TIS-.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2012/MATTAUSCH-2012-TIS/MATTAUSCH-2012-TIS-:thumb{{size}}.png" }, "1": { "description": null, "filetitle": "discrete shadow 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However, it is of little use for the acceleration of shadow map generation (i.e., rasterizing the scene from the light view [Williams 78]), so that typically a high percentage of the geometry will be visible when rendering shadow maps. For example, in outdoor scenes typical viewpoints are near the ground and therefore have significant occlusion, while light viewpoints are higher up and see most of the geometry. 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Procedural modeling enables us to quickly generate large city layouts, while manual modeling allows us to hand-craft every aspect of a city. We introduce transformation and merging operators for both topology preserving and topology changing transformations based on graph cuts. In combination with a layering system, this allows intuitive manipulation of urban layouts using operations such as drag and drop, translation, rotation etc. In contrast to previous work, these operations always generate valid, i.e., intersection-free layouts. Furthermore, we introduce anchored assignments to make sure that modifications are persistent even if the whole urban layout is regenerated.\n", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "merged", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1282, "image_height": 1028, "name": "lipp2011a-merged.png", "type": "image/png", "size": 1963167, "path": "Publication:lipp2011a", "url": "https://www.cg.tuwien.ac.at/research/publications/2011/lipp2011a/lipp2011a-merged.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2011/lipp2011a/lipp2011a-merged:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 680, 452, 194, 193 ], "date_from": "2011-04-11", "date_to": "2011-04-15", "event": "Eurographics 2011", "issn": "0167-7055", "journal": "Computer Graphics Forum (Proceedings EG 2011)", 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not surprising that recent years have seen an explosion in the number of shadow map related publications. The last survey that encompassed shadow mapping approaches, but was mainly focused on soft shadow generation, dates back to 2003~cite{HLHS03}, while the last survey for general shadow generation dates back to 1990~cite{Woo:1990:SSA}. No survey that describes all the advances made in hard shadow map generation in recent years exists.\n\nOn the other hand, shadow mapping is widely used in the game industry, in production, and in many other applications, and it is the basis of many soft shadow algorithms. Due to the abundance of articles on the topic, it has become very hard for practitioners and researchers to select a suitable shadow algorithm, and therefore many applications miss out on the latest high-quality shadow generation approaches. \nThe goal of this survey is to rectify this situation by providing a detailed overview of this field. We provide a detailed analysis of shadow mapping errors and derive a comprehensive classification of the existing methods. We discuss the most influential algorithms, consider their benefits and shortcomings and thereby provide the readers with the means to choose the shadow algorithm best suited to their needs.\n", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "depthBiasSketch", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 718, "image_height": 720, "name": "scherzer2011d-depthBiasSketch.png", "type": "image/png", "size": 33344, "path": "Publication:scherzer2011d", "url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011d/scherzer2011d-depthBiasSketch.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011d/scherzer2011d-depthBiasSketch:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452, 193, 190 ], "issn": "0167-7055", "journal": "Computer Graphics Forum", "number": 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Peters", "research_areas": [ "Rendering" ], "keywords": [], "weblinks": [], "files": [ { "description": "algorithm flowchart", "filetitle": "flowchart", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 2480, "image_height": 2832, "name": "2011scherzerE-flowchart.png", "type": "image/png", "size": 699525, "path": "Publication:2011scherzerE", "url": "https://www.cg.tuwien.ac.at/research/publications/2011/2011scherzerE/2011scherzerE-flowchart.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2011/2011scherzerE/2011scherzerE-flowchart:thumb{{size}}.png" } ], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2011/2011scherzerE/", "__class": "Publication" }, { "id": "scherzer2011c", "type_id": "otherreviewed", "tu_id": null, "repositum_id": null, "title": "A Survey on Temporal Coherence Methods in Real-Time Rendering", "date": "2011", "abstract": "Nowadays, there is a strong trend towards rendering to higher-resolution displays and at high frame rates. This development aims at delivering more detail and better accuracy, but it also comes at a significant cost.\nAlthough graphics cards continue to evolve with an ever-increasing amount of computational power, the processing gain is counteracted to a high degree by increasingly complex and sophisticated pixel computations. For real-time applications, the direct consequence is that image resolution and temporal resolution are often the first candidates to bow to the performance constraints (e.g., although full HD is possible, PS3 and XBox often render at lower resolutions).\n\nIn order to achieve high-quality rendering at a lower cost, one can exploit emph{temporal coherence} (TC). The underlying observation is that a higher resolution and frame rate do not necessarily imply a much higher workload, but a larger amount of redundancy and a higher potential for amortizing rendering over several frames. In this STAR, we will investigate methods that make use of this principle and provide practical and theoretical advice on how to exploit temporal coherence for performance optimization. These methods not only allow us to incorporate more computationally intensive shading effects into many existing applications, but also offer exciting opportunities for extending high-end graphics applications to lower-spec consumer-level hardware.\n\nTo this end, we first introduce the notion and main concepts of TC, including an overview of historical methods. We then describe a key data structure, the so-called emph{reprojection cache}, with several supporting algorithms that facilitate reusing shading information from previous frames. Its usefulness is illustrated in the second part of the STAR, where we present various applications. We illustrate how expensive pixel shaders, multi-pass shading effects, stereo rendering, shader antialiasing, shadow casting, and global-illumination effects can profit from pixel reuse. Furthermore, we will see that optimizations for visibility culling and object-space global illumination can also be achieved by exploiting TC.\n\nThis STAR enables the reader to gain an overview of many techniques in this cutting-edge field and provides many insights into algorithmic choices and implementation issues. It delivers working knowledge of how various existing techniques are optimized via data reuse. Another goal of this STAR is to inspire the reader and to raise awareness for temporal coherence as an elegant tool that could be a crucial component to satisfy the recent need for higher resolution and more detailed content.\n", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1024, "image_height": 768, "name": "scherzer2011c-.png", "type": "image/png", "size": 883179, "path": "Publication:scherzer2011c", "url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011c/scherzer2011c-.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011c/scherzer2011c-:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452, 868, 326, 899, 900, 193, 823 ], "booktitle": "EUROGRAPHICS 2011 State of the Art Reports", "location": "Llandudno UK", "pages_from": "101", "pages_to": "126", "publisher": "Eurographics Association", "research_areas": [ "Rendering" ], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1024, "image_height": 768, "name": "scherzer2011c-.png", "type": "image/png", "size": 883179, "path": "Publication:scherzer2011c", "url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011c/scherzer2011c-.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011c/scherzer2011c-:thumb{{size}}.png" }, { "description": null, "filetitle": "2", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 1024, "image_height": 821, "name": "scherzer2011c-2.png", "type": "image/png", "size": 23874, "path": "Publication:scherzer2011c", "url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011c/scherzer2011c-2.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011c/scherzer2011c-2:thumb{{size}}.png" }, { "description": null, "filetitle": "3", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 707, "image_height": 530, "name": "scherzer2011c-3.png", "type": "image/png", "size": 337791, "path": "Publication:scherzer2011c", "url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011c/scherzer2011c-3.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011c/scherzer2011c-3:thumb{{size}}.png" }, { "description": null, "filetitle": "4", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 707, "image_height": 530, "name": "scherzer2011c-4.png", "type": "image/png", "size": 290541, "path": "Publication:scherzer2011c", "url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011c/scherzer2011c-4.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011c/scherzer2011c-4:thumb{{size}}.png" }, { "description": "paper", "filetitle": "pdf", "main_file": true, "use_in_gallery": false, "access": "public", "name": "scherzer2011c-pdf.pdf", "type": "application/pdf", "size": 18828677, "path": "Publication:scherzer2011c", "url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011c/scherzer2011c-pdf.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011c/scherzer2011c-pdf:thumb{{size}}.png" }, { "description": "eg-slides", "filetitle": "slides", "main_file": false, "use_in_gallery": false, "access": "public", "name": "scherzer2011c-slides.rar", "type": "application/x-rar", "size": 94435406, "path": "Publication:scherzer2011c", "url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011c/scherzer2011c-slides.rar", "thumb_image_sizes": [] } ], "projects_workgroups": [ "GPV" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2011/scherzer2011c/", "__class": "Publication" }, { "id": "mattausch-2010-tao", "type_id": "journalpaper_notalk", "tu_id": null, "repositum_id": null, "title": "High-Quality Screen-Space Ambient Occlusion using Temporal Coherence", "date": "2010-12", "abstract": "Ambient occlusion is a cheap but effective approximation of global illumination. Recently, screen-space ambient\nocclusion (SSAO) methods, which sample the frame buffer as a discretization of the scene geometry, have become\nvery popular for real-time rendering. We present temporal SSAO (TSSAO), a new algorithm which exploits\ntemporal coherence to produce high-quality ambient occlusion in real time. Compared to conventional SSAO,\nour method reduces both noise as well as blurring artifacts due to strong spatial filtering, faithfully representing\nfine-grained geometric structures. Our algorithm caches and reuses previously computed SSAO samples, and\nadaptively applies more samples and spatial filtering only in regions that do not yet have enough information\navailable from previous frames. The method works well for both static and dynamic scenes.", "authors_et_al": false, "substitute": null, "main_image": { "description": "ssao", "filetitle": "image-buddha", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 458, "image_height": 722, "name": "mattausch-2010-tao-image-buddha.png", "type": "image/png", "size": 994420, "path": "Publication:mattausch-2010-tao", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/mattausch-2010-tao/mattausch-2010-tao-image-buddha.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/mattausch-2010-tao/mattausch-2010-tao-image-buddha:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 326, 452, 193 ], "issn": "0167-7055", "journal": "Computer Graphics Forum", "number": "8", "pages_from": "2492", "pages_to": "2503", "volume": "29", "research_areas": [ "Rendering" ], "keywords": [ "temporal coherence", "ambient occlusion", "real-time rendering" ], "weblinks": [ { "href": "http://onlinelibrary.wiley.com/doi/10.1111/j.1467-8659.2010.01784.x/abstract", "caption": null, "description": null, "main_file": 0 } ], "files": { "1": { "description": "ssao", "filetitle": "image-buddha", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 458, "image_height": 722, "name": "mattausch-2010-tao-image-buddha.png", "type": "image/png", "size": 994420, "path": "Publication:mattausch-2010-tao", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/mattausch-2010-tao/mattausch-2010-tao-image-buddha.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/mattausch-2010-tao/mattausch-2010-tao-image-buddha:thumb{{size}}.png" }, "2": { "description": "convergence", "filetitle": "image-knight", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 422, 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"access": "public", "preview_image_width": 1024, "preview_image_height": 768, "name": "mattausch-2010-tao-video-movements.mov", "type": "video/quicktime", "size": 121009125, "path": "Publication:mattausch-2010-tao", "preview_name": "mattausch-2010-tao-video-movements:preview.png", "preview_type": "image/jpeg", "preview_size": 29987, "url": "https://www.cg.tuwien.ac.at/research/publications/2010/mattausch-2010-tao/mattausch-2010-tao-video-movements.mov", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/mattausch-2010-tao/mattausch-2010-tao-video-movements:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2010/mattausch-2010-tao/mattausch-2010-tao-video-movements:video.mp4" }, "5": { "description": "walkthrough", "filetitle": "video-sibenik", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 1024, "preview_image_height": 768, "name": 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"Publication:mattausch-2010-tao", "preview_name": "mattausch-2010-tao-video-vienna:preview.png", "preview_type": "image/jpeg", "preview_size": 32020, "url": "https://www.cg.tuwien.ac.at/research/publications/2010/mattausch-2010-tao/mattausch-2010-tao-video-vienna.mov", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/mattausch-2010-tao/mattausch-2010-tao-video-vienna:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2010/mattausch-2010-tao/mattausch-2010-tao-video-vienna:video.mp4" } }, "projects_workgroups": [ "GPV" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2010/mattausch-2010-tao/", "__class": "Publication" }, { "id": "scherzer2010e", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "An Overview of Temporal Coherence Methods in Real-Time Rendering ", "date": "2010-10", "abstract": "Most of the power of modern graphics cards is put into the acceleration of shading tasks because here lies the major bottleneck for most sophisticated real-time algorithms. By using temporal coherence, i.e. reusing shading information from a previous frame, this problem can be alleviated. This paper gives an overview of the concepts of temporal coherence in real-time rendering and should give the reader the working practical and theoretical knowledge to exploit temporal coherence in his own algorithms.\n", "authors_et_al": false, "substitute": null, "main_image": { "description": "reprojection", "filetitle": "reprojection", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1890, "image_height": 1134, "name": "scherzer2010e-reprojection.png", "type": "image/png", "size": 1438470, "path": "Publication:scherzer2010e", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010e/scherzer2010e-reprojection.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010e/scherzer2010e-reprojection:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452 ], "booktitle": " 14th International Conference on System Theory and Control 2010", "date_from": "2010-10-17", "date_to": "2010-10-19", "issn": "2068-0465", "lecturer": [ 452 ], "location": "Sinaia, Romania", "organization": "IEEE", "pages_from": "497", "pages_to": "502", "research_areas": [ "Rendering" ], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "pdf", "main_file": true, "use_in_gallery": false, "access": "public", "name": "scherzer2010e-pdf.pdf", "type": "application/pdf", "size": 11871226, "path": "Publication:scherzer2010e", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010e/scherzer2010e-pdf.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010e/scherzer2010e-pdf:thumb{{size}}.png" }, { "description": "reprojection", "filetitle": "reprojection", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1890, "image_height": 1134, "name": "scherzer2010e-reprojection.png", "type": "image/png", "size": 1438470, "path": "Publication:scherzer2010e", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010e/scherzer2010e-reprojection.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010e/scherzer2010e-reprojection:thumb{{size}}.png" } ], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010e/", "__class": "Publication" }, { "id": "bagar2010", "type_id": "journalpaper", "tu_id": null, "repositum_id": null, "title": "A Layered Particle-Based Fluid Model for Real-Time Rendering of Water", "date": "2010-06", "abstract": "We present a physically based real-time water simulation and rendering method that brings volumetric foam to the real-time domain, significantly increasing the realism of dynamic fluids. We do this by combining a particle-based fluid model that is capable of accounting for the formation of foam with a layered rendering approach that is able to account for the volumetric properties of water and foam. Foam formation is simulated through Weber number thresholding. For rendering, we approximate the resulting water and foam volumes by storing their respective boundary surfaces in depth maps. This allows us to calculate the attenuation of light rays that pass through these volumes very efficiently. We also introduce an adaptive curvature flow filter that produces consistent fluid surfaces from particles independent of the viewing distance.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "layers", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1283, "image_height": 462, "name": "bagar2010-layers.png", "type": "image/png", "size": 281427, "path": "Publication:bagar2010", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/bagar2010/bagar2010-layers.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/bagar2010/bagar2010-layers:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 724, 452, 193 ], "date_from": "2010-06-28", "date_to": "2010-06-30", "event": "Eurographics Symposium on Rendering 2010", "issn": "0167-7055", "journal": "Computer Graphics Forum (Proceedings EGSR 2010)", "lecturer": [ 724 ], "location": "Saarbrücken", "number": "4", "pages_from": "1383", "pages_to": "1389", "volume": "29", "research_areas": [ "Rendering" ], "keywords": [], "weblinks": [ { "href": "http://onlinelibrary.wiley.com/doi/10.1111/j.1467-8659.2010.01734.x/abstract", "caption": null, "description": null, "main_file": 0 } ], "files": [ { "description": null, "filetitle": "", "main_file": false, "use_in_gallery": false, "access": "public", "name": "bagar2010-.ppt", "type": "application/vnd.ms-office", "size": 29901824, "path": "Publication:bagar2010", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/bagar2010/bagar2010-.ppt", "thumb_image_sizes": [] }, { "description": "compositing", "filetitle": "compositing", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1280, "image_height": 720, "name": "bagar2010-compositing.png", "type": "image/png", "size": 1937623, "path": "Publication:bagar2010", "url": 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"https://www.cg.tuwien.ac.at/research/publications/2010/bagar2010/bagar2010-video:video.mp4" } ], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2010/bagar2010/", "__class": "Publication" }, { "id": "scherzer2010b", "type_id": "book", "tu_id": null, "repositum_id": null, "title": "Temporal Coherence in Real-Time Rendering", "date": "2010", "abstract": "Real-time rendering imposes the challenging task of creating a new rendering of an input scene at least 60 times per second. Although computer graphics\nhardware has made staggering advances in terms of\nspeed and freedom of programmability in recent years,\nthere still exists a number of algorithms that are\njust too expensive to be calculated in this time budget,\nlike for instance exact shadows or an exact global illumination\nsolution. One way to circumvent this hard time limit\nis to capitalize on temporal coherence to formulate\nalgorithms incremental in time.\nTo this end, three algorithms which successfully incorporate temporal coherence are analysed in detail.\nTo highlight the benefits which are provided by these new practical algorithms, this book also includes the respective previous work.\nThis includes not only the field of temporal coherence, but also the fields of real-time hard and soft shadows and discrete LOD blending.\nThis book targets computer scientists and students with prior knowledge in real-time rendering.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "cover", "main_file": true, "use_in_gallery": true, "access": "public", "image_width": 159, "image_height": 233, "name": "scherzer2010b-cover.jpg", "type": "image/jpeg", "size": 14290, "path": "Publication:scherzer2010b", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010b/scherzer2010b-cover.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010b/scherzer2010b-cover:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452 ], "isbn": "978-3-639-09196-0", "pages": "122", "publisher": "Verlag Dr. Müller", "research_areas": [ "Rendering" ], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "cover", "main_file": true, "use_in_gallery": true, "access": "public", "image_width": 159, "image_height": 233, "name": "scherzer2010b-cover.jpg", "type": "image/jpeg", "size": 14290, "path": "Publication:scherzer2010b", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010b/scherzer2010b-cover.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010b/scherzer2010b-cover:thumb{{size}}.png" }, { "description": "softShadowSampling", "filetitle": "softShadowSampling", "main_file": true, "use_in_gallery": true, "access": "public", "image_width": 1890, "image_height": 945, "name": "scherzer2010b-softShadowSampling.png", "type": "image/png", "size": 2002419, "path": "Publication:scherzer2010b", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010b/scherzer2010b-softShadowSampling.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010b/scherzer2010b-softShadowSampling:thumb{{size}}.png" } ], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010b/", "__class": "Publication" }, { "id": "scherzer2010d", "type_id": "otherreviewed", "tu_id": null, "repositum_id": null, "title": "Exploiting Temporal Coherence in Real-Time Rendering", "date": "2010", "abstract": "Temporal coherence (TC), the correlation of contents between adjacent rendered frames, exists across a wide range of scenes and motion types in practical real-time rendering. By taking advantage of TC, we can save redundant computation and improve the performance of many rendering tasks significantly with only a marginal decrease in quality. This not only allows us to incorporate more computationally intensive shading effects to existing applications, but also offers exciting opportunities of extending high-end graphics applications to reach lower-spec consumer-level hardware.\n\nThis course aims to introduce participants to the concepts of TC, and provide them the working practical and theoretical knowledge to exploit TC in a variety of shading tasks. It begins with an introduction of the general notion of TC in rendering, as well as an overview of the recent developments in this field. Then it focuses on a key data structure - the reverse reprojection cache, which is the foundation of many applications. The course proceeds with a number of extensions of the basic algorithm for assisting in multi-pass shading effects, shader antialiasing, casting shadows and global-illumination effects. Finally, several more general coherence topics beyond pixel reuse are introduced, including visibility culling optimization and object-space global-illumination approximations. For all the major techniques and applications covered, implementation and practical issues involved in development are addressed in detail.\n\nIn general, we emphasize \"know how\" and the guidelines related to algorithm choices. After the course, participants are encouraged to find and utilize TC in their own applications and rapidly adapt existing algorithms to meet their requirements.", "authors_et_al": false, "substitute": null, "main_image": { "description": "reprojection", "filetitle": "image", "main_file": true, "use_in_gallery": true, "access": "public", "image_width": 850, "image_height": 362, "name": "scherzer2010d-image.png", "type": "image/png", "size": 66769, "path": "Publication:scherzer2010d", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010d/scherzer2010d-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010d/scherzer2010d-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452, 868, 326 ], "booktitle": "SIGGRAPH Asia 2010 Courses", "date_from": "2010-12-15", "date_to": "2010-12-18", "location": "Seoul, Südkorea", "research_areas": [ "Rendering" ], "keywords": [ "shadows", "temporal coherence", "real-time", "rendering" ], "weblinks": [], "files": [ { "description": "reprojection", "filetitle": "image", "main_file": true, "use_in_gallery": true, "access": "public", "image_width": 850, "image_height": 362, "name": "scherzer2010d-image.png", "type": "image/png", "size": 66769, "path": "Publication:scherzer2010d", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010d/scherzer2010d-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010d/scherzer2010d-image:thumb{{size}}.png" }, { "description": null, "filetitle": "paper", "main_file": true, "use_in_gallery": false, "access": "public", "name": "scherzer2010d-paper.pdf", "type": "application/pdf", "size": 18830643, "path": "Publication:scherzer2010d", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010d/scherzer2010d-paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010d/scherzer2010d-paper:thumb{{size}}.png" } ], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer2010d/", "__class": "Publication" }, { "id": "scherzer_2010a", "type_id": "otherreviewed", "tu_id": null, "repositum_id": null, "title": "A Survey of Real-Time Hard Shadow Mapping Methods", "date": "2010", "abstract": "Due to its versatility, speed and robustness, shadow mapping has always been a popular algorithm for fast hard shadow generation since its introduction in 1978, first for off-line film productions and later increasingly so in real-time graphics.\n\nSo it is not surprising that recent years have seen an explosion in the number of shadow map related publications. The last survey that encompassed shadow mapping approaches, but was mainly focused on soft shadow generation, dates back to 2003~cite{HLHS03} and the last survey for general shadow generation dates back to 1990~cite{Woo:1990:SSA}. No survey that describes all the advances made in hard shadow map generation in recent years exists.\n\nOn the other hand, shadow mapping is widely used in the game industry, in production, and in many other applications, and it is the basis of many soft shadow algorithms. Due to the abundance of articles on the topic, it has become very hard for practioners and researchers to select a suitable shadow algorithm, and therefore many applications miss out on the latest high-quality shadow generation approaches. \n\n%Real-time research was always tempted to bring global lighting techniques into the real-time domain. One of the most popular adaptations in this respect are hard shadows. It is therefore not surprising that real-time hard shadow generation has been one of the most active areas in research in recent years. But what is surprising is that the last state-of-the-art report that encompassed this field dates back to 1990~cite{Woo:1990:SSA}, were only the beginnings of this field were explored. \n\nThe goal of this survey is to rectify this situation by providing a detailed overview of this field. We provide a detailed analysis of shadow mapping errors and derive from this a comprehensive classification of the existing methods. We discuss the most influential algorithms, consider their benefits and shortcomings and thereby provide the reader with the means to choose the shadow algorithm best suited to her needs.", "authors_et_al": false, "substitute": null, "main_image": { "description": "Partitioning", "filetitle": "Partitioning", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 935, "image_height": 593, "name": "scherzer_2010a-Partitioning.png", "type": "image/png", "size": 685992, "path": "Publication:scherzer_2010a", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer_2010a/scherzer_2010a-Partitioning.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer_2010a/scherzer_2010a-Partitioning:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452, 193, 190 ], "booktitle": "EUROGRAPHICS 2010 State of the Art Reports", "location": "Norrköping, Sweden", "research_areas": [ "Rendering" ], "keywords": [], "weblinks": [], "files": [ { "description": "Partitioning", "filetitle": "Partitioning", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 935, "image_height": 593, "name": "scherzer_2010a-Partitioning.png", "type": "image/png", "size": 685992, "path": "Publication:scherzer_2010a", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer_2010a/scherzer_2010a-Partitioning.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer_2010a/scherzer_2010a-Partitioning:thumb{{size}}.png" }, { "description": "preprint", "filetitle": "pdf", "main_file": true, "use_in_gallery": false, "access": "public", "name": "scherzer_2010a-pdf.pdf", "type": "application/pdf", "size": 24734544, "path": "Publication:scherzer_2010a", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer_2010a/scherzer_2010a-pdf.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer_2010a/scherzer_2010a-pdf:thumb{{size}}.png" } ], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2010/scherzer_2010a/", "__class": "Publication" }, { "id": "scherzer2009c", "type_id": "WorkshopTalk", "tu_id": null, "repositum_id": null, "title": "Casting Shadows in Real Time", "date": "2009-12-17", "abstract": "Shadows are crucial for enhancing realism, and they provide important visual cues. In recent years, many important contributions have been made in representation of both hard shadows and soft shadows. With the tremendous increase of computational power and capabilities of graphics hardware, high-quality real-time shadows are now a reachable goal. But with the growing volume of available choices, it is particularly difficult to pick the right solution and assess product shortcomings. Because currently there is no ideal approach available, algorithms should be selected in accordance with the context in which shadows are produced. The possibilities range across a wide spectrum, from very approximate but really efficient to slower but accurate, adapted only to smaller or only to larger sources, addressing directional lights or positional lights, or involving GPU or CPU-heavy computations. This course is a guide to better understanding of the limitations and failure cases, advantages and disadvantages, and suitability of the algorithms for different application scenarios. It focuses on real-time, interactive solutions but also discusses offline approaches.", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "", "main_file": true, "use_in_gallery": true, "access": "public", "image_width": 804, "image_height": 602, "name": "scherzer2009c-.png", "type": "image/png", "size": 242725, "path": "Publication:scherzer2009c", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer2009c/scherzer2009c-.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer2009c/scherzer2009c-:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 825, 823, 824, 452 ], "event": "SIGGRAPH Asia Course", "lecturer": [ 452 ], "location": "Yokohama, Japan", "research_areas": [], "keywords": [ "shadows", "real-time" ], "weblinks": [], "files": [ { "description": "", "filetitle": "", "main_file": true, "use_in_gallery": true, "access": "public", "image_width": 804, "image_height": 602, "name": "scherzer2009c-.png", "type": "image/png", "size": 242725, "path": "Publication:scherzer2009c", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer2009c/scherzer2009c-.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer2009c/scherzer2009c-:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer2009c/", "__class": "Publication" }, { "id": "SSMW09", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Real-Time Soft Shadows Using Temporal Coherence", "date": "2009-12", "abstract": "A vast amount of soft shadow map algorithms have been presented in recent years. Most use a single sample hard shadow map together with some clever filtering technique to calculate perceptually or even physically plausible soft shadows. \n\nOn the other hand there is the class of much slower algorithms that calculate physically correct soft shadows by taking and combining many samples of the light.\n\nIn this paper we present a new soft shadow method that combines the benefits of these approaches. It samples the light source over multiple frames instead of a single frame, creating only a single shadow map each frame. Where temporal coherence is low we use spatial filtering to estimate additional samples to create correct and very fast soft shadows.\n", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "teaser", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1600, "image_height": 1200, "name": "SSMW09-teaser.png", "type": "image/png", "size": 1927290, "path": "Publication:SSMW09", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/SSMW09/SSMW09-teaser.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/SSMW09/SSMW09-teaser:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452, 678, 326, 193 ], "booktitle": "Advances in Visual Computing: 5th International Symposium on Visual Computing (ISVC 2009)", "date_from": "2009-11-30", "date_to": "2009-12-02", "editor": "Bebis, G.; Boyle, R.; Parvin, B.; Koracin, D.; Kuno, Y.; Wang, J.; Pajarola, R.; Lindstrom, P.; Hinkenjann, A.; Encarnacao, M.; Silva, C.; Coming, D.", "isbn": "978-3642103308", "lecturer": [ 452 ], "location": "Las Vegas, Nevada, USA", "pages_from": "13", "pages_to": "24", "publisher": "Springer", "series": "Lecture Notes in Computer Science", "research_areas": [ "Rendering" ], "keywords": [ "real-time rendering", "soft shadows" ], "weblinks": [], "files": [ { "description": null, "filetitle": "balken", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1220, "image_height": 1390, "name": "SSMW09-balken.png", "type": "image/png", "size": 3440414, "path": "Publication:SSMW09", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/SSMW09/SSMW09-balken.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/SSMW09/SSMW09-balken:thumb{{size}}.png" }, { "description": null, "filetitle": "big light source", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 499, "image_height": 560, "name": "SSMW09-big light source.png", "type": "image/png", "size": 527219, "path": "Publication:SSMW09", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/SSMW09/SSMW09-big light source.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/SSMW09/SSMW09-big light source:thumb{{size}}.png" }, { "description": null, "filetitle": "camel", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1100, "image_height": 900, "name": "SSMW09-camel.png", "type": "image/png", "size": 237138, "path": "Publication:SSMW09", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/SSMW09/SSMW09-camel.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/SSMW09/SSMW09-camel:thumb{{size}}.png" }, { "description": null, "filetitle": "Preprint", "main_file": true, "use_in_gallery": false, "access": "public", "name": "SSMW09-Preprint.pdf", "type": "application/pdf", "size": 14451940, "path": "Publication:SSMW09", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/SSMW09/SSMW09-Preprint.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/SSMW09/SSMW09-Preprint:thumb{{size}}.png" }, { "description": null, "filetitle": "teaser", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1600, "image_height": 1200, "name": "SSMW09-teaser.png", "type": "image/png", "size": 1927290, "path": "Publication:SSMW09", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/SSMW09/SSMW09-teaser.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/SSMW09/SSMW09-teaser:thumb{{size}}.png" } ], "projects_workgroups": [ "GPV" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2009/SSMW09/", "__class": "Publication" }, { "id": "scherzer-thesis", "type_id": "phdthesis", "tu_id": null, "repositum_id": null, "title": "Applications of temporal coherence in real-time rendering", "date": "2009", "abstract": "Real-time rendering imposes the challenging task of creating a new rendering of an input scene at least 60 times a second. Although computer graphics hardware has made staggering advances in terms of speed and freedom of programmability, there still exist a number of algorithms that are too expensive to be calculated in this time budget, like exact shadows or an exact global illumination solution. One way to circumvent this hard time limit is to capitalize on temporal coherence to formulate algorithms incremental in time.\n\nThe main thesis of this work is that temporal coherence is a characteristic of real-time graphics that can be used to redesign well-known rendering methods to become faster, while exhibiting better visual fidelity. \n\nTo this end we present our adaptations of algorithms from the fields of exact hard shadows, physically correct soft shadows and fast discrete LOD blending, in which we have successfully incorporated temporal coherence. Additionally, we provide a detailed context of previous work not only in the field of temporal coherence, but also in the respective fields of the presented algorithms.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "woman with soft shadow", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1500, "image_height": 1500, "name": "scherzer-thesis-woman with soft shadow.png", "type": "image/png", "size": 701795, "path": "Publication:scherzer-thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-woman with soft shadow.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-woman with soft shadow:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452 ], "date_end": "2009-11", "date_start": "2005-12", "reviewer_1": [ 193 ], "reviewer_2": [ 1327 ], "rigorosum": "2009-11-27", "supervisor": [ 193 ], "research_areas": [ "Rendering" ], "keywords": [ "shadows", "lod", "real-time", "image-space" ], "weblinks": [], "files": { "0": { "description": null, "filetitle": "Camel", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1200, "image_height": 900, "name": "scherzer-thesis-Camel.png", "type": "image/png", "size": 197918, "path": "Publication:scherzer-thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-Camel.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-Camel:thumb{{size}}.png" }, "1": { "description": null, "filetitle": "Disocclusion", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 812, "image_height": 512, "name": "scherzer-thesis-Disocclusion.png", "type": "image/png", "size": 213767, "path": "Publication:scherzer-thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-Disocclusion.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-Disocclusion:thumb{{size}}.png" }, "2": { "description": null, "filetitle": "Pixel correct shadows", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1680, "image_height": 1050, "name": "scherzer-thesis-Pixel correct shadows.png", "type": "image/png", "size": 1040616, "path": "Publication:scherzer-thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-Pixel correct shadows.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-Pixel correct shadows:thumb{{size}}.png" }, "3": { "description": null, "filetitle": "smooth LOD", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1024, "image_height": 1024, "name": "scherzer-thesis-smooth LOD.png", "type": "image/png", "size": 385388, "path": "Publication:scherzer-thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-smooth LOD.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-smooth LOD:thumb{{size}}.png" }, "4": { "description": null, "filetitle": "soft shadow teaser", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1600, "image_height": 1200, "name": "scherzer-thesis-soft shadow teaser.png", "type": "image/png", "size": 1927290, "path": "Publication:scherzer-thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-soft shadow teaser.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-soft shadow teaser:thumb{{size}}.png" }, "5": { "description": null, "filetitle": "Soft shadow", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1147, "image_height": 1031, "name": "scherzer-thesis-Soft shadow.png", "type": "image/png", "size": 1104078, "path": "Publication:scherzer-thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-Soft shadow.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-Soft shadow:thumb{{size}}.png" }, "6": { "description": null, "filetitle": "Soft shadows eifel", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1024, "image_height": 700, "name": "scherzer-thesis-Soft shadows eifel.png", "type": "image/png", "size": 977234, "path": "Publication:scherzer-thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-Soft shadows eifel.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-Soft shadows eifel:thumb{{size}}.png" }, "7": { "description": null, "filetitle": "soft tree shadow", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1579, "image_height": 1031, "name": "scherzer-thesis-soft tree shadow.png", "type": "image/png", "size": 2129577, "path": "Publication:scherzer-thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-soft tree shadow.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-soft tree shadow:thumb{{size}}.png" }, "9": { "description": null, "filetitle": "visibility texture", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1024, "image_height": 1024, "name": "scherzer-thesis-visibility texture.png", "type": "image/png", "size": 540489, "path": "Publication:scherzer-thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-visibility texture.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-visibility texture:thumb{{size}}.png" }, "10": { "description": null, "filetitle": "woman with soft shadow", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1500, "image_height": 1500, "name": "scherzer-thesis-woman with soft shadow.png", "type": "image/png", "size": 701795, "path": "Publication:scherzer-thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-woman with soft shadow.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/scherzer-thesis-woman with soft shadow:thumb{{size}}.png" } }, "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2009/scherzer-thesis/", "__class": "Publication" }, { "id": "SCHERZER-2008-FSR", "type_id": "journalpaper", "tu_id": null, "repositum_id": null, "title": "Frame Sequential Interpolation for Discrete Level-of-Detail Rendering", "date": "2008-06", "abstract": "In this paper we present a method for automatic interpolation between adjacent discrete levels of detail to achieve smooth LOD changes in image space. We achieve this by breaking the problem into two passes: We render the two LOD levels individually and combine them in a separate pass afterwards. The interpolation is formulated in a way that only one level has to be updated per frame and the other can be reused from the previous frame, thereby causing roughly the same render cost as with simple non interpolated discrete LOD rendering, only incurring the slight overhead of the final combination pass. Additionally we describe customized interpolation schemes using visibility textures.\n\nThe method was designed with the ease of integration into existing engines in mind. It requires neither sorting nor blending of objects, nor does it introduce any constrains in the LOD used. The LODs can be coplanar, alpha masked, animated, impostors, and intersecting, while still interpolating smoothly.\n\n", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "thumbnail", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1311, "image_height": 804, "name": "SCHERZER-2008-FSR-thumbnail.png", "type": "image/png", "size": 750809, "path": "Publication:SCHERZER-2008-FSR", "url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-thumbnail.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-thumbnail:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452, 193 ], "date_from": "2008-06-23", "date_to": "2008-06-25", "event": "Eurographics Symposium on Rendering 2008", "issn": "0167-7055", "journal": "Computer Graphics Forum (Proceedings EGSR 2008)", "lecturer": [ 452 ], "location": "Sarajevo, Bosnia-Herzegovina", "number": "4", "pages_from": "1175", "pages_to": "1181", "volume": "27", "research_areas": [ "Rendering" ], "keywords": [ "LOD blending", "real-time rendering", "levels of detail" ], "weblinks": [], "files": [ { "description": null, "filetitle": "draft", "main_file": true, "use_in_gallery": false, "access": "public", "name": "SCHERZER-2008-FSR-draft.pdf", "type": "application/pdf", "size": 12907147, "path": "Publication:SCHERZER-2008-FSR", "url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-draft.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-draft:thumb{{size}}.png" }, { "description": null, "filetitle": "thumbnail", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1311, "image_height": 804, "name": "SCHERZER-2008-FSR-thumbnail.png", "type": "image/png", "size": 750809, "path": "Publication:SCHERZER-2008-FSR", "url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-thumbnail.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-thumbnail:thumb{{size}}.png" }, { "description": null, "filetitle": "video", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 768, "preview_image_height": 576, "name": "SCHERZER-2008-FSR-video.avi", "type": "video/x-msvideo", "size": 46305280, "path": "Publication:SCHERZER-2008-FSR", "preview_name": "SCHERZER-2008-FSR-video:preview.png", "preview_type": "image/jpeg", "preview_size": 81994, "url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-video.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-video:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-video:video.mp4" } ], "projects_workgroups": [ "CROSSMOD" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/", "__class": "Publication" }, { "id": "Scherzer-2007-PCS", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Pixel-Correct Shadow Maps with Temporal Reprojection and Shadow Test Confidence", "date": "2007-06", "abstract": "Shadow mapping suffers from spatial aliasing (visible as blocky shadows) as well as temporal aliasing (visible as flickering). Several methods have already been proposed for reducing such artifacts, but so far none is able to provide satisfying results in real time.\n\nThis paper extends shadow mapping by reusing information of previously rasterized images, stored efficiently in a so-called history buffer. This buffer is updated in every frame and then used for the shadow calculation. In combination with a special confidence-based method for the history buffer update (based on the current shadow map), temporal and spatial aliasing can be completely removed. The algorithm converges in about 10 to 60 frames and during convergence, shadow borders are sharpened over time. Consequently, in case of real-time frame rates, the temporal shadow adaption is practically imperceptible. The method is simple to implement and is as fast as uniform shadow mapping, incurring only the minor speed hit of the history buffer update. It works together with advanced filtering methods like percentage closer filtering and more advanced shadow mapping techniques like perspective or light space perspective shadow maps.", "authors_et_al": false, "substitute": null, "main_image": { "description": "Pixel-correct shadow maps as a result of using a shadow map (size 10242) with shadow test confidence together with a history buffer. Note that projection and perspective aliasing are completely removed.", "filetitle": "image1", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1576, "image_height": 1024, "name": "Scherzer-2007-PCS-image1.png", "type": "image/png", "size": 1924365, "path": "Publication:Scherzer-2007-PCS", "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image1.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image1:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452, 356, 193 ], "booktitle": "Rendering Techniques 2007 (Proceedings Eurographics Symposium on Rendering)", "date_from": "2007-06-25", "date_to": "2007-06-27", "editor": "Jan Kautz and Sumanta Pattanaik", "isbn": "978-3-905673-52-4", "lecturer": [ 452 ], "location": "Grenoble, France", "organization": "Eurographics", "pages_from": "45", "pages_to": "50", "publisher": "Eurographics Association", "research_areas": [ "Rendering" ], "keywords": [ "shadow mapping" ], "weblinks": [], "files": [ { "description": "Pixel-correct shadow maps as a result of using a shadow map (size 10242) with shadow test confidence together with a history buffer. Note that projection and perspective aliasing are completely removed.", "filetitle": "image1", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1576, "image_height": 1024, "name": "Scherzer-2007-PCS-image1.png", "type": "image/png", "size": 1924365, "path": "Publication:Scherzer-2007-PCS", "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image1.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image1:thumb{{size}}.png" }, { "description": "In this figure we used our new shadow mapping technique (PCSM) toshow that even scenarios were projection aliasing is the dominant source of error, we can produce the correct shadowing solution.", "filetitle": "image2", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1576, "image_height": 1024, "name": "Scherzer-2007-PCS-image2.png", "type": "image/png", "size": 1857584, "path": "Publication:Scherzer-2007-PCS", "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image2.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image2:thumb{{size}}.png" }, { "description": "In this figure we used our new shadow mapping technique (PCSM) toshow that even scenarios were projection aliasing is the dominant source of error, we can produce the correct shadowing solution.", "filetitle": "image3", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1576, "image_height": 1024, "name": "Scherzer-2007-PCS-image3.png", "type": "image/png", "size": 783356, "path": "Publication:Scherzer-2007-PCS", "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image3.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image3:thumb{{size}}.png" }, { "description": "New fragments (shown in red) without history that result from a camera translation.", "filetitle": "image4", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1280, "image_height": 684, "name": "Scherzer-2007-PCS-image4.png", "type": "image/png", "size": 619467, "path": "Publication:Scherzer-2007-PCS", "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image4.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image4:thumb{{size}}.png" }, { "description": null, "filetitle": "Preprint", "main_file": true, "use_in_gallery": false, "access": "public", "name": "Scherzer-2007-PCS-Preprint.pdf", "type": "application/pdf", "size": 8878009, "path": "Publication:Scherzer-2007-PCS", "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-Preprint.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-Preprint:thumb{{size}}.png" }, { "description": null, "filetitle": "video", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Scherzer-2007-PCS-video.wmv", "type": "text/plain", "size": 30221796, "path": "Publication:Scherzer-2007-PCS", "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-video.wmv", "thumb_image_sizes": [] } ], "projects_workgroups": [ "CROSSMOD" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/", "__class": "Publication" }, { "id": "Wimmer-2006", "type_id": "inbook", "tu_id": null, "repositum_id": null, "title": "Robust Shadow Mapping with Light Space Perspective Shadow Maps", "date": "2006-03", "abstract": "In this paper, we present a new shadow mapping technique that improves upon the quality of perspective and\r\nuniform shadow maps. Our technique uses a perspective transform specified in light space which allows treating\r\nall lights as directional lights and does not change the direction of the light sources. This gives all the benefits\r\nof the perspective mapping but avoids the problems inherent in perspective shadow mapping like singularities\r\nin post-perspective space, missed shadow casters etc. Furthermore, we show that both uniform and perspective\r\nshadow maps distribute the perspective aliasing error that occurs in shadow mapping unequally over the available\r\ndepth range. We therefore propose a transform that equalizes this error and gives equally pleasing results for near\r\nand far viewing distances. Our method is simple to implement, requires no scene analysis and is therefore as fast\r\nas uniform shadow mapping.", "authors_et_al": false, "substitute": null, "main_image": { "description": "Construction of z_0 and z_1", "filetitle": "newFormula", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1108, "image_height": 1024, "name": "Wimmer-2006-newFormula.png", "type": "image/png", "size": 89625, "path": "Publication:Wimmer-2006", "url": "https://www.cg.tuwien.ac.at/research/publications/2006/Wimmer-2006/Wimmer-2006-newFormula.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2006/Wimmer-2006/Wimmer-2006-newFormula:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 193, 452 ], "booktitle": "ShaderX 4 -- Advanced Rendering Techniques", "editor": "Wolfgang Engel", "isbn": "1-58450-425-0", "pages_from": "313", "pages_to": "330", "publisher": "Charles River Media", "series": "ShaderX", "volume": "4", "research_areas": [], "keywords": [ "real-time rendering", "shadows" ], "weblinks": [], "files": [ { "description": "Construction of z_0 and z_1", "filetitle": "newFormula", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1108, "image_height": 1024, "name": "Wimmer-2006-newFormula.png", "type": "image/png", "size": 89625, "path": "Publication:Wimmer-2006", "url": "https://www.cg.tuwien.ac.at/research/publications/2006/Wimmer-2006/Wimmer-2006-newFormula.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2006/Wimmer-2006/Wimmer-2006-newFormula:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2006/Wimmer-2006/", "__class": "Publication" }, { "id": "S05", "type_id": "masterthesis", "tu_id": null, "repositum_id": null, "title": "Shadow Mapping of Large Environments", "date": "2005-08", "abstract": "This thesis is about shadow generation in real-time and its problems. Its focus is\r\non shadow mapping, a real-time technique to render high quality shadows. A lot\r\nof literature is available concerning shadow mapping and the problems associated\r\nwith it. But most of this literature concerns itself only with certain problematic\r\nparts of shadow mapping, but not with all the problems of shadow mapping together.\r\nIn this thesis we will give a minute report of all these problems and why\r\nand how they occur. We will discuss the major methods to cure them and identify\r\nand adopt the methods so that they can be used together for demanding real-time\r\napplications to avoid all of the shadow mapping problems.\r\nAll things considered this thesis should provide an insight into the current\r\nstate of research in the field of real-time shadow generation with shadow maps,\r\nand should expand this overview by giving the reader all the methods at hand to\r\ncure the problems of shadow mapping and use it in a complex real-time scenario\r\nwithout visible artefacts.", "authors_et_al": false, "substitute": null, "main_image": { "description": "PNG", "filetitle": "Teaser", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1024, "image_height": 1024, "name": "S05-Teaser.png", "type": "image/png", "size": 650340, "path": "Publication:S05", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/S05/S05-Teaser.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/S05/S05-Teaser:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452 ], "supervisor": [ 193 ], "research_areas": [], "keywords": [ "real-time rendering", "shadow mapping" ], "weblinks": [], "files": [ { "description": "PDF", "filetitle": "Diploma Thesis", "main_file": true, "use_in_gallery": false, "access": "public", "name": "S05-Diploma Thesis.pdf", "type": "application/pdf", "size": 19877381, "path": "Publication:S05", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/S05/S05-Diploma Thesis.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/S05/S05-Diploma Thesis:thumb{{size}}.png" }, { "description": "PNG", "filetitle": "Teaser", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1024, "image_height": 1024, "name": "S05-Teaser.png", "type": "image/png", "size": 650340, "path": "Publication:S05", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/S05/S05-Teaser.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/S05/S05-Teaser:thumb{{size}}.png" } ], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/S05/", "__class": "Publication" }, { "id": "Scherzer_2005", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Robust Shadow Maps for Large Environments", "date": "2005", "abstract": "One of the most demanding challenges for real-time shadow algorithms is their application to large-scale, polygon-rich and dynamic environments.\r\nIn this paper, we discuss the major problems encountered in applying shadow maps to such an environment and provide practical and robust solutions to the appearing problems. We tackle projection aliasing with the aid of an eye space blur. We compare the major biasing methods to remove incorrect self-shadowing of polygons. Finally we are providing some advancements to the recently published light space perspective shadow mapping method to resolve projection aliasing problems.\r\n", "authors_et_al": false, "substitute": null, "main_image": { "description": "The final intersection body B (violet) with a light direction from above (orange arrows)", "filetitle": "body_B", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1500, "image_height": 1125, "name": "Scherzer_2005-body_B.png", "type": "image/png", "size": 580386, "path": "Publication:Scherzer_2005", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Scherzer_2005/Scherzer_2005-body_B.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Scherzer_2005/Scherzer_2005-body_B:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452 ], "booktitle": "Proceedings of the Central European Seminar on Computer Graphics 2005", "publisher": "Eigenverlag", "research_areas": [], "keywords": [ "real-time", "shadow algorithm" ], "weblinks": [], "files": [ { "description": "The final intersection body B (violet) with a light direction from above (orange arrows)", "filetitle": "body_B", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1500, "image_height": 1125, "name": "Scherzer_2005-body_B.png", "type": "image/png", "size": 580386, "path": "Publication:Scherzer_2005", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Scherzer_2005/Scherzer_2005-body_B.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Scherzer_2005/Scherzer_2005-body_B:thumb{{size}}.png" }, { "description": "paper", "filetitle": "paper", "main_file": true, "use_in_gallery": true, "access": "public", "name": "Scherzer_2005-paper.pdf", "type": "application/pdf", "size": 4400364, "path": "Publication:Scherzer_2005", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Scherzer_2005/Scherzer_2005-paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Scherzer_2005/Scherzer_2005-paper:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Scherzer_2005/", "__class": "Publication" }, { "id": "Wimmer-2004-LSPM", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Light Space Perspective Shadow Maps", "date": "2004-06", "abstract": "In this paper, we present a new shadow mapping technique that improves the quality of perspective and uniform shadow maps. Our technique uses a perspective transform specified in light space which allows treating all lights as directional lights and does not change the direction of the light sources. This gives all the benefits of the perspective mapping but avoids the problems inherent in perspective shadow mapping like singularities in post-perspective space, missed shadow casters etc. Furthermore, we show that both uniform and perspective shadow maps distribute the perspective aliasing error that occurs in shadow mapping unequally over the available z-range. We therefore propose a transform that equalizes this error and gives equally pleasing results for near and far viewing distances. Our method is simple to implement, requires no scene analysis and is therefore as fast as uniform shadow mapping.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 928, "image_height": 464, "name": "Wimmer-2004-LSPM-image.jpg", "type": "image/jpeg", "size": 82022, "path": "Publication:Wimmer-2004-LSPM", "url": "https://www.cg.tuwien.ac.at/research/publications/2004/Wimmer-2004-LSPM/Wimmer-2004-LSPM-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2004/Wimmer-2004-LSPM/Wimmer-2004-LSPM-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 193, 452, 190 ], "booktitle": "Rendering Techniques 2004 (Proceedings Eurographics Symposium on Rendering)", "date_from": "2004-06-21", "date_to": "2004-06-23", "editor": "Alexander Keller and Henrik W. Jensen", "isbn": "3-905673-12-6", "lecturer": [ 193 ], "location": "Norrköping, Sweden", "organization": "Eurographics", "pages_from": "143", "pages_to": "151", "publisher": "Eurographics Association", "research_areas": [ "Rendering" ], "keywords": [ "shadows", "real-time rendering" ], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 928, "image_height": 464, "name": "Wimmer-2004-LSPM-image.jpg", "type": "image/jpeg", "size": 82022, "path": "Publication:Wimmer-2004-LSPM", "url": "https://www.cg.tuwien.ac.at/research/publications/2004/Wimmer-2004-LSPM/Wimmer-2004-LSPM-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2004/Wimmer-2004-LSPM/Wimmer-2004-LSPM-image:thumb{{size}}.png" }, { "description": "A scene shadowed with Light Space Perspective Shadow Maps.", "filetitle": "image2", "main_file": false, 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"https://www.cg.tuwien.ac.at/research/publications/2004/Wimmer-2004-LSPM/Wimmer-2004-LSPM-image3:thumb{{size}}.png" }, { "description": "A scene shadowed with Light Space Perspective Shadow Maps.", "filetitle": "image4", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 2048, "image_height": 1480, "name": "Wimmer-2004-LSPM-image4.png", "type": "image/png", "size": 1483549, "path": "Publication:Wimmer-2004-LSPM", "url": "https://www.cg.tuwien.ac.at/research/publications/2004/Wimmer-2004-LSPM/Wimmer-2004-LSPM-image4.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2004/Wimmer-2004-LSPM/Wimmer-2004-LSPM-image4:thumb{{size}}.png" }, { "description": "A scene shadowed with Light Space Perspective Shadow Maps.", "filetitle": "image5", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 2048, "image_height": 1480, "name": "Wimmer-2004-LSPM-image5.png", "type": 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