Time differencing for improved cloth animation
US6509899B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 1, 2000 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Mar 1, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2210/16
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A dynamic cloth simulation technique according to the present invention decomposes the second order differential equations of motion into two first order differential equations which permits separation of position and velocity terms. In another aspect of the present invention tensile stiffness terms are separated from bending and damping terms. The bending and damping terms may be integrated using long time steps to promote simulation stability. Tensile stiffness terms may be calculated in sub-cycle periods shorter than the long time steps used for bending and damping calculations. Use of short sub-cycle steps in simulations of garments having high tensile spring forces permits a stable dynamic simulation with a high degreee of realism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.