Hierarchical Motion Brushes for Animation Instancing


Our work on “motion brushes” provides a new workflow for the creation and reuse of 3D animation with a focus on stylized movement and depiction.

August 8, 2014
Non-photorealistic Animation and Rendering (NPAR) 2014



Antoine Milliez (Disney Research/ETH Joint PhD)

Chino Noris (Disney Research)

Ilya Baran (Disney Research)

Stelian Coros (Disney Research)

Marie-Paule Cani (Inria Grenoble Rhone-Alpes)

Maurizio Nitti (Disney Research)

Alessia Marra (Disney Research)

Markus Gross (Disney Research/ETH Zurich)

Robert W. Sumner (Disney Research/ETH Zurich)

Hierarchical Motion Brushes for Animation Instancing


Conceptually, motion brushes expand existing brush models by incorporating hierarchies of 3D animated content including geometry, appearance information, and motion data as corebrushprimitivesthatareinstantiatedusingapaintinginterface. Because motion brushes can encompass all the richness of detail and movement offered by animation software, they accommodate complex, varied effects that are not easily created by other means. Tosupportreuseandprovideaneffectivemeansformanagingcomplexity, weproposeahierarchicalrepresentationthatallowssimple brushes to be combined into more complex ones. Our system providesstroke-basedcontrolovermotion-brushparameters,including toolstoeffectivelymanagethetemporalnatureofthemotionbrush instances. We demonstrate the flexibility and richness of our system with motion brushes for splashing rain, footsteps appearing in the snow, and stylized visual effects.

Copyright Notice