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Stochastic Simplification of Aggregate Detail Robert L. Cook, John Halstead, Maxwell Planck, David Ryu May 2007 Many renderers perform poorly on scenes that contain a lot of detailed geometry. The load on the renderer can be alleviated by simplification techniques, which create less expensive representations of geometry that is small on the screen. Current simplification techniques for high-quality surface-based rendering tend to work best with element ... more Paper (PDF) Additional materials: [SiggraphSlides.pdf], [WithAndWithoutSimplification.mov] Available in the Proceedings of Siggraph 2007. Available as Pixar Technical Memo #06-05a Other versions: |
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Rivers of Rodents: An Animation-Centric Crowds Pipeline for
Ratatouille David Ryu, Paul Kanyuk May 2007 One of the major technical challenges in the animated film Ratatouille was creating a believable rat colony. In numbers as high as a thousand, these rats participated in highly complex and coordinated behaviors ranging from chaotic swarming to gourmet cooking. Often, the colony was ... more Paper (PDF) Available as Pixar Technical Memo #07-02 |
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500 Million and Counting: Hair Rendering on Ratatouille David Ryu May 2007 Featuring plush rats, well-groomed humans, and a colony of rodents numbering a thousand strong, Ratatouille had shots where the original scene descriptions contained many hundreds of millions of hairs. To make these shots renderable, we developed many new technologies to optimize our RenderMan-based hair rendering pipeline, including caching to speed up runtime sculpting, a technique ... more Paper (PDF) Available as Pixar Technical Memo #07-09 |