21651107_李超_读书报告1

A common issue in three-dimensional animation is the creation of contacts between a

virtual creature and the environment. Contacts allow force exertion, which produces motion.

This paper addresses the problem of computing contact configurations allowing to perform

motion tasks such as getting up from a sofa, pushing an object or climbing. We propose a two-

step method to generate contact configurations suitable for such tasks. The first step is an offline

sampling of the range of motion (ROM) of a virtual creature. The ROM of the human arms and

examples or motion capture data. It is suitable for real time applications and applies to arbitrary

creatures in arbitrary environments. Various scenarios (such as climbing, crawling, getting up,

pushing or pulling objects) are used to demonstrate that our method enhances motion autonomy

and interactivity in constrained environments..

Keywords: Autonomous virtual characters,Animation for games,Procedural

Animation,Contact Before Motion,Range Of Motion,Force Transmission Ratio