I have a nike logo, scattering lines to use for a hair sim which I am then using a mops falloff to drive the stopped attribute so the hair fly away. I am also using the same falloff to reveal the logo and using it as a collision which gives it the violent effect.
At frame 150 I turn on gravity the hairs all dropped dramatically but the problem I am facing is that any hairs above the logo seem to be colliding with a much larger ghost mesh. Now I'm not sure if this is to do with a bounding box or possibly even the original geo before sim as it seems to be the same height as the hairs pre-solve. All I know is that if I take away the logo from the collision they fall as they should.
tamte Add f@pscale to your logo collider and adjust accordingly
Seems like your scene is small and default collision radius is simply too large
Thank you will give this a try. Interested as to know why I would need a pscale attribute for the collision geometry. Is this because the solver converts it to a vdb/volume? If so, could I achieve the same result by converting it to vdb instead of creating a pscale attribute?
