Non-Linear Kernel-Based Precomputed Light Transport

 

Paul Green Jan Kautz Wojciech Matusik Fredo Durand Henrik Wann Jensen
MIT MIT MIT MIT UCSD
Technical Sketch
Siggraph 2004

 

 

Abstract

 

We propose a real-time method for rendering static objects with complex materials under distant all-frequency lighting. Existing precomputed light transport approaches can render objects with complex material properties (e.g., anisotropy, translucency) and complex global illumination effects (e.g., inter-reflections, soft shadows, subsurface scattering). However, they are either restricted to low-frequency illumination or they assume a fixed viewer. In this sketch we propose a solution that allows both. Our method is based on two components: (1) a compact non-linear representation for precomputed light transport that can be integrated rapidly with the distant all-frequency illumination, and (2) a new interpolation scheme that enables rendering of an arbitrary viewpoint from only a sparse set of precomputed views. Figure 1 shows an object rendered using our method.

 

Citation

Paul Green, Jan Kautz, Wojciech Matusik, Fredo Durand, and Henrik Wann Jensen. Non-Linear Kernel-Based Precomputed Light Transport. Technical Sketch, Siggraph 2004.

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