Inverse kinematic solution blending in digital character animation
US10818065B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2019 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | May 17, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T13/80
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to systems, non-transitory computer-readable media, and methods for intelligently blending inverse kinematic (IK) solutions to more naturally depict joint positioning and/or movement of digital animated characters. In particular, in one or more embodiments, the character animation system can blend two IK solutions for an elbow joint based on a shoulder angle. For example, the character animation system can utilize a blending region to dynamically blend IK solutions as the shoulder angle moves through the blending region, thereby smoothly modifying bend direction and elbow position of the animated character arm. Based on the modified elbow position relative to a wrist position and a shoulder position, the animated character system can simulate more accurate, natural arm movements while reducing time and interactions needed to generate realistic animation sequences.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.