Special thanks to Audrey Wong, Principal Technical Artist, Pixar Animation Studios, for providing this link to a technical paper authored by Theodore Kim, Fernando de Goes, and Hayley Iben, describing technologies used to create Hank the octopus in "Finding Dory." Some of these technologies were later incorporated into SideFX's Houdini software and Vellum. Unlike Cinema 4D, which uses quadrangles and N-gons, Houdini employs tetrahedrons to create meshes.
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