Real-time Rendering and Animation of Vegetation: Advances in displaying vegetation for interactive applications

Information

• Publication Type: Published Book
• Workgroup(s)/Project(s):
  • TreeLumination
• Date: 2009
• ISBN: 978-3838104997
• Pages: 140
• Publisher: Suedwestdeutscher Verlag fuer Hochschulschriften
• Keywords: Real-time Rendering, Vegetation

Abstract

Vegetation rendering and animation in real-time applications still pose a significant problem due to the inherent complexity of plants. Both the high geometric complexity and intricate light transport require specialized techniques to achieve high-quality rendering of vegetation in real time. This thesis presents new algorithms that address various areas of both vegetation rendering and animation. For grass rendering, an efficient algorithm to display grass is introduced. Also, a method to efficiently render leaves is introduced. Leaves exhibit a complex light transport behavior due to subsurface scattering and special attention is given to the translucency of leaves, an integral part of leaf shading. To animate a tree, a novel deformation method based on a structural mechanics model that incorporates the important physical properties of branches is introduced. To drive this deformation, an optimized spectral approach that also incorporates the physical properties of branches is used. Additionally, a method to use dynamic skylight models in spherical harmonics precomputed radiance transfer techniques is introduced, allowing to change the skylight parameters in real time.

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BibTeX

@book{Habel-09-THB,
  title =      "Real-time Rendering and Animation of Vegetation: Advances in
               displaying vegetation for interactive applications",
  author =     "Ralf Habel",
  year =       "2009",
  abstract =   "Vegetation rendering and animation in real-time applications
               still pose a significant problem due to the inherent
               complexity of plants. Both the high geometric complexity and
               intricate light transport require specialized techniques to
               achieve high-quality rendering of vegetation in real time.
               This thesis presents new algorithms that address various
               areas of both vegetation rendering and animation. For grass
               rendering, an efficient algorithm to display grass is
               introduced. Also, a method to efficiently render leaves is
               introduced. Leaves exhibit a complex light transport
               behavior due to subsurface scattering and special attention
               is given to the translucency of leaves, an integral part of
               leaf shading. To animate a tree, a novel deformation method
               based on a structural mechanics model that incorporates the
               important physical properties of branches is introduced. To
               drive this deformation, an optimized spectral approach that
               also incorporates the physical properties of branches is
               used. Additionally, a method to use dynamic skylight models
               in spherical harmonics precomputed radiance transfer
               techniques is introduced, allowing to change the skylight
               parameters in real time. ",
  isbn =       "978-3838104997",
  pages =      "140",
  publisher =  "Suedwestdeutscher Verlag fuer Hochschulschriften",
  keywords =   "Real-time Rendering, Vegetation",
  URL =        "https://www.cg.tuwien.ac.at/research/publications/2009/Habel-09-THB/",
}