Hello !
When debugging hair interpolation from an animated guide cache that didn’t behave like expected, I found that the CVar r.HairStrands.Strands.Interpolation.ForceSingleGuide was active by default, defeating the expected behavior of having multiple guides influence a single strand, smoothing out the deformation.
In the groom asset editor, we can opt-in to the option “Use Unique Guide”, which is disabled by default.
But the CVar is in fact considering that this option is always toggled on, which induces false assumptions for the user and the inability to actually try both modes without deactivating the CVar.
This CVar seems more like a debug option and should be set to 0 by default instead.
Thanks !
Maxime