Controlling collision thickness

One of the most important properties of an nCloth shape is the…collision thickness.…That's an envelope around the cloth that determines whether or not the cloth is…touching something, or colliding with something.…The collision Thickness is found in the nClothShape node, in the top section here,…which is Collisions.…And currently, I've got a Thickness of 0.8 or so, and that seems to be …working okay. I've got no wind in this particular scene, and I'm just checking to…see if the cloth is self-intersecting.…

And as I look here, it seems okay; I don't see any areas where the cloth is…actually poking through itself. Very good.…I'll rewind, and let's reduce the Thickness down to 0.…This is something you'd never do in production, or in real life.…I'm doing that just to make my point, reducing the thickness down to nothing.…Pressing Play, and immediately we see the difference here. The cloth is …self-intersecting, and poking through itself.…And that's a really terrible outcome, because if that cloth actually passes…