«
»

Fool Me Twice: Exploring and Exploiting Error Tolerance in Physics-Based Animation

The error tolerance of human perception offers a range of opportunities to trade numerical accuracy for performance in physics-based simulation. However, most previous approaches either focus exclusively on understanding the tolerance of the human visual system or burden the application developer with case-specific implementations. In this paper, based on a detailed set of perceptual metrics, we propose a methodology to identify the maximum error tolerance of physics simulation. Then, we apply this methodology in the evaluation of two techniques. The first is the hardware optimization technique of precision reduction which reduces the size of floating point units (FPUs), allowing more of them to occupy the same silicon area. The increased number of FPUs can significantly improve the performance of future physics accelerators. A key benefit of our approach is that it is transparent to the application developer. The
second is the software optimization of choosing the largest timestep for simulation.

Fool Me Twice: Exploring and Exploiting Error Tolerance in Physics-Based Animation

Posted by christopherbatty on August 6th, 2008 Posted in Uncategorized
(Comments are closed)