I’ve made a cat litter box for a phone app I’m developing and I’m using a particle system for the litter particulates. But even though I’ve defined collision on both the sides and the bottom of the litter box, some particles are still shining through, it seems.
The plane of the bottom part of the litter box extended a little bit too much to the sides, probably because of the Solidify modifier used on the bottom part.
I cleaned up the model with a subsurf modifier on the bottom and smooth shading for both the top and bottom parts.
