Hierarchy models: building blocks for procedural rigging
- Michael HutchinsonSandy KaoKevin OchsGilbert DavoudAlex Powell
- 28 July 2019
Computer Science
SIGGRAPH Talks
The Hierarchy Model reduces complexity in character rigs, improves separation between data and behavior, provides a clean interface, and simplifies understanding and debugging rigs.
Flap flap away: animation cycle multiplexing
The use of animation cycle multiplexing technique was first deployed on How to Train Your Dragon at Dreamworks to accomplish the ambitious task of animating many winged characters with limited…
MHR: Momentum Human Rig
- Aaron FergusonAhmed A. A. Osman Zhongshi Jiang
- 19 November 2025
Computer Science, Engineering
MHR is presented, a parametric human body model that combines the decoupled skeleton/shape paradigm of ATLAS with a flexible, modern rig and pose corrective system inspired by the Momentum library, designed for robust integration in AR/VR and graphics pipelines.
A.C.M.E. Multilimb System
- Sandy KaoMichael D. Amos Ariel Chisholm
- 26 July 2021
Computer Science, Art
For The Boss Baby: Family Business, the DreamWorks A.M.C.E. Multilimb System is an end-to-end pipeline solution for achieving the traditional 2D multiples and smears that puts the control back into the hands of Animation.