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2008

Real-time editing and relighting of homogeneous translucent materials

8 years 8 months ago
Real-time editing and relighting of homogeneous translucent materials
Existing techniques for fast, high-quality rendering of translucent materials often fix BSSRDF parameters at precomputation time. We present a novel method for accurate rendering and relighting of translucent materials that also enables real-time editing and manipulation of homogeneous diffuse BSSRDFs. We first apply PCA analysis on diffuse multiple scattering to derive a compact basis set, consisting of only twelve 1D functions. We discovered that this small basis set is accurate enough to approximate a general diffuse scattering profile. For each basis, we then precompute light transport data representing the translucent transfer from a set of local illumination samples to each rendered vertex. This local transfer model allows our system to integrate a variety of lighting models in a single framework, including environment lighting, local area lights, and point lights. To reduce the PRT data size, we compress both the illumination and spatial dimensions using efficient nonlinear wave...
Rui Wang 0004, Ewen Cheslack-Postava, Rui Wang 000
Added 16 Dec 2010
Updated 16 Dec 2010
Type Journal
Year 2008
Where VC
Authors Rui Wang 0004, Ewen Cheslack-Postava, Rui Wang 0003, David Luebke, Qianyong Chen, Wei Hua, Qunsheng Peng, Hujun Bao
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