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Other worldly crowds in Coco

Published: 12 August 2018 Publication History

Abstract

Coco, Pixar's largest human-based crowds film to date, was ambitious both visually and technically. Over a third of the film contains crowd scenes, ranging from a mansion-filled dance party to thousands of skeleton families journeying across a bridge, to a colossal cheering stadium. This complexity required vast amounts of both animation specificity and look variation in our characters.
Asset management, animation directability, and rendering would have been extremely difficult with our previous pipeline for human crowds at this scale. An array of techniques were developed to tackle these challenges, including crowd asset and workflow improvements; a new skeletal rigging and posing system to procedurally control animation; more automated, aggressive shading and geometric level of detail; and optimized geometry unrolling in Katana to significantly reduce scene processing time and file IO.

References

[1]
Moe El-Ali, Le Tong, Josh Richards, Tuan Nguyen, Alberto Luceno Ros, and Norman Moses Joseph. 2016. Zootopia Crowd Pipeline. In ACM SIGGRAPH 2016 Talks (SIGGRAPH '16). ACM, New York, NY, USA, Article 59, 2 pages.
[2]
Stephen Gustafson, Hemagiri Arumugam, Paul Kanyuk, and Michael Lorenzen. 2016. MURE: Fast Agent Based Crowd Simulation for VFX and Animation. In ACM SIGGRAPH 2016 Talks (SIGGRAPH '16). ACM, New York, NY, USA, Article 56, 2 pages.

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Published In

cover image ACM Conferences
SIGGRAPH '18: ACM SIGGRAPH 2018 Talks
August 2018
158 pages
ISBN:9781450358200
DOI:10.1145/3214745
Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for third-party components of this work must be honored. For all other uses, contact the Owner/Author.

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 12 August 2018

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Author Tags

  1. crowds
  2. pipeline
  3. procedural animation
  4. rendering

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SIGGRAPH '18
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