Cloth collision with rigid body stuck at starting point I wanted to simulate an object falling above a cloth, but found that it kept falling through no matter what I do, while trying to figure out what's wrong I also found that when I put the object under the cloth, it seems that the collision stays where the object was and didn't really "follow" it. Sorry if I'm not communicating things clearly, I'm new to blender.
At the physics tab add a cloth physics and scroll down a bit, you should see the Collisions title. Open it up by clicking on it then enable the self collisions.