I created a hair setup with the usual guide groom, guide deform, guide simulate workflow in Houdini 17.5.173. The character is moving at a very high speed which causes the hair to stretch and go a bit crazy. judging by the documentation, I should lower the Time Scale value under the Vellum Solver tab in the guide simulate node. I have tried reducing to .5, .01 or even increasing to 2 and many other higher and lower values, but the sim just stretches, explodes and crumples. It sims fine during normal motion parts of the animation. Any ideas?
It's not about timescale but substeps, increase substeps, but make sure your animated skin geo is properly animating between frames, if not use Time Blend SOP to interpolate between frames
Thanks Tomas! That was exactly what was needed. I just assumed that Houdini would do a linear interpolation between frames on its on, but the Time Blend SOP after the body animation, did the job.
