I'm a total noob - and I'm doing a soft body simulation - just a ball bouncing. The ball does bounce, but it is not actually touching the collision surface, it is bouncing slightly above. It's like there's an invisible surface holding the ball floating in space. It's very noticeable in a side view (see picture). How do I make the ball actually bounce on the correct surface?
Found the solution! The ball was a cube with a subdivision surface modifier, smooth shaded. The problem was that I did not hit "apply" in the modifier settings. Blender was showing me a nice smooth ball, but was animating it as though it was still a cube -- and held on to it's invisible cube geometry. Problem instantly vanishes by hitting "apply."