No I’m still on 3.0 using JBullet which is about twice slower at the moment. I just can’t get myself to trust 3.1 yet when I see a “random thing not working [3.1]” on the top of the forums every other day. My code is buggy enough without a questionable base.
Fast when colliding with what? Primitives? Possibly. Other hulls? No way, not from what I’ve tested. The reason why I switched to using a bajillion primitives is because the hulls were so dissapointing.
And that was using one hull per ship, can’t imagine how bad would it be if I split it so that everything would be convex without gaps.