Physics-based motion retiming

摘要: By changing only the playback timing of a motion sequence, an animator can achieve variety effects that alter our perception event. In some scenarios, it may be important to consider physical properties when retiming (e.g., preserve plausibility). However, existing solutions quite time consuming parameters are considered. This paper presents interactive method for creating optimal retimings takes into account physically based constraints and objective functions. We fast performance through precomputation phase where projected two-dimensional space velocities accelerations along input path. Unlike previous approaches, technique allows rapid computation plausible contact forces result from retiming, also accommodates parameters. demonstrate approach by results changes in duration, manipulations gravity vector, modifications character limb masses.