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Eurographics/ ACM SIGGRAPH Symposium on Computer Animation (2006) (2006)
| Content Provider | CiteSeerX |
|---|---|
| Author | Editors, Cani Brien Mccann, J. Pollard, N. S. Srinivasa, S. |
| Description | In SCA ’06: Proceedings of the 2006 ACM SIGGRAPH/Eurographics symposium on Computer animation By changing only the playback timing of a motion sequence, an animator can achieve a variety of effects that alter our perception of an event. In some scenarios, it may be important to consider physical properties of the motion when retiming (e.g., to preserve physical plausibility). However, existing retiming solutions can be quite time consuming when physical parameters are considered. This paper presents an interactive method for creating optimal motion retimings that takes into account physically based constraints and objective functions. We achieve fast performance through a precomputation phase where constraints are projected into the two-dimensional space of velocities and accelerations along the input motion path. Unlike previous approaches, our precomputation technique allows for rapid computation of plausible contact forces that result from retiming, and it also accommodates changing physical parameters. We demonstrate our approach by creating physically plausible results for changes in motion duration, manipulations of the gravity vector, and modifications of character limb masses. |
| File Format | |
| Language | English |
| Publisher Date | 2006-01-01 |
| Access Restriction | Open |
| Subject Keyword | Objective Function Quite Time Optimal Motion Retimings Physical Property Physical Parameter Fast Performance Character Limb Mass Physical Plausibility Precomputation Technique Precomputation Phase Previous Approach Computer Animation Motion Sequence Playback Timing Input Motion Path Eurographics Acm Siggraph Symposium Plausible Contact Force Interactive Method Plausible Result Two-dimensional Space Motion Duration Rapid Computation Gravity Vector |
| Content Type | Text |
| Resource Type | Article |
