I am using Blender 2.90.0 on OS X Catalina
I would like to fill up glass letters (letter object converted to mesh) with objects (actually spheres, but used a cube to test.
I removed the top faces to allow an opening (naive of me, I know) and let the cube fall, but it bounces before it hits the opening as if there is face there.
I figure I could probably get the same affect using some sort of bounding box, but I would like to try this using Physics. the cube is an active object, the letter is passive. I have tried active for letter as well.
I assume there has to be an "official" way of telling blender that the face isn't there...