Ray-traced collision detection for deformable bodies

Everton Hermann (1, 2) , François Faure (2) , Bruno Raffin (1, 3)

1 MOAIS - PrograMming and scheduling design fOr Applications in Interactive Simulation
2 EVASION - Virtual environments for animation and image synthesis of natural objects
3 ID-IMAG - Informatique et Distribution

This paper presents a new approach to collision detection and modeling between deformable volumetric bod- ies. It allows deep intersections while alleviating the difficulties of distance field update. A ray is shot from each surface vertex in the direction of the inward normal. A collision is detected when the first intersection be- longs to an inward surface triangle of another body. A contact force between the vertex and the matching point is then created. Experiments show that this approach is fast and more robust than traditional proximity-based collisions.

Domaines: Synthèse d'image et réalité virtuelle [cs.GR]

Everton Hermann, François Faure, Bruno Raffin. Ray-traced collision detection for deformable bodies. GRAPP 2008 - 3rd International Conference on Computer Graphics Theory and Applications, Jan 2008, Madeira, Portugal. pp.293-299. ⟨inria-00319404v2⟩