G - Physics – 06 – F
Patent
G - Physics
06
F
G06F 19/00 (2006.01) G06F 3/00 (2006.01)
Patent
CA 2430193
To synthesize virtual contact resulting from rigid object acting on a deformable body, a method is used whereby a surface of a deformable body meshed into polygons carries a finite set of responses corresponding to actual responses between the object and the body which are calculated or measured in a preprocessing step and stored into memory. Response data associated with the currently active polygon is obtained from the memory and the response is synthesized for any point on the surface and any position of the rigid object, including reproduction of friction. By accessing pre- processed response data, the computational complexity is reduced, while the determination of the relative position of the point of contact within the currently active polygon makes it possible use a double interpolation process that ensures continuity of rendered forces and the passivity of the synthesized interaction although the original data is known only at a discrete locations.
Hayward Vincent
Mohammadi Mohsen Mahvash
French David J.
University Mcgill
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