To this end, we built a unique pipeline which was ubiquitous, easy to control and art-direct, yet unobtrusive to the on-screen action. More than sparkly eye candy, these unassuming specks convey fluid motion, camera speed, ambient water environments, and can even amplify the emotional impact of a shot. Abstract In Finding Dory, particulate is the floating debris found in nearly every underwater shot. Rather than filling the ocean withįinding Particulate In Finding Dory Daniel Chang Aaron Conover Pixar Animation Studios Stephen Gustafson Figure 1: Shots featuring particulate. In Houdini, we receive the packaged USD scene and unpackage and build the equivalent Houdini nodes using custom node generators. An interface of Houdini prim proxies was created in Pixar's in-house animation package (Presto) to allow TDs to perform scene setup in a familiar environment, while shipping scene geometry and sim params via USD to Houdini. Keywords: sphere particles, particulate, simulation, underwater, atmo- Simulation Particulate simulations were run through SideFX's Houdini. Novel techniques include "infinite" camera-constrained particulate regions for ocean particulate, mesh-constrained fluid simulations for container particulate, screen-space and world-space character interaction, efficient ways of post-processing and culling, and beautiful caustic and chromatic aberration-adorned lighting. Finding particulate in Finding Dory Finding particulate in Finding DoryĬhang, Daniel Conover, Aaron Gustafson, Stephenįinding Particulate In Finding Dory Daniel Chang Aaron Conover Pixar Animation Studios Stephen Gustafson Figure 1: Shots featuring particulate.
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