Weta to Show Off R&D at SIGGRAPH 2011

For the first time, SIGGRAPH is expanding beyond the U.S. and will be in Vancouver next week. And when I was recently in Wellington, I asked Weta’s senior visual effects supervisor, Joe Letteri (Rise of the Planet of the Apes, The Adventures of Tintin), about their presentations at SIGGRAPH.

Weta will present two new R&D advancements at SIGGRAPH: an art directable water simulation and a new subsurface lighting technique (both demonstrated in Tintin). “They need to be where you want them and when you want them,” he said about the water simulation.” And the subsurface “allows us to better resolve finer details near the top surface of the skin in a way that’s computationally cost-effective.”

Here are the presentations at SIGGRAPH 2011:

A Quantized-Diffusion Model for Rendering Translucent Materials

With these new techniques for rendering translucent materials such as human skin, modified diffusion theory and a new quantized-diffusion method derive efficient and accurate scattering functions for both offline and real-time rendering.

Eugene d’Eon
Weta Digital Ltd

Geoffrey Irving
Weta Digital Ltd

Tuesday, 2:00 pm – 3:30 pm | East Building, Exhibit Hall A
Session Chair: Jaakko Lehtinen, NVIDIA Corp.

Guide Shapes for High-Resolution Naturalistic Liquid Simulation

To efficiently obtain natural-looking liquid simulations subject to art direction, this method processes approved low-resolution geometry into a “guide shape” just below the liquid surface. The final high-resolution simulation runs just a surface layer constrained by the guide, with benefits for both speed and control.

Michael Nielsen
Weta Digital Ltd

Robert Bridson
University of British Columbia and Weta Digital Ltd

Wednesday, 3:45 pm – 5:35 pm | East Building, Exhibit Hall A
Session Chair: Nils Thuerey, Scanline VFX

Posted on by Bill Desowitz in Animation, Education, Events, Tech, VFX

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