Computer Graphics Laboratory ETH Zurich

ETH

Efficient Simulation of Example-based Materials

C. Schumacher, B. Thomaszewski, S. Coros, S. Martin, R. Sumner, M. Gross

Proceedings of the 2012 ACM SIGGRAPH/Eurographics Symposium on Computer Animation (Lausanne, Switzerland, July 29-31, 2012), pp. 1-8
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Abstract

We present a new method for efficiently simulating art-directable deformable materials. We use example poses to define subspaces of desirable deformations via linear interpolation. As a central aspect of our approach, we use an incompatible representation for input and interpolated poses that allows us to interpolate between elements individually. This enables us to bypass costly reconstruction steps and we thus achieve significant performance improvements compared to previous work. As a natural continuation, we furthermore present a formulation of example-based plasticity. Finally, we extend the directability of example-based materials and explore a number of powerful control mechanisms. We demonstrate these novel concepts on a number of solid and shell animations including artistic deformation behaviors, cartoon physics, and example-based pose space dynamics.

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