Thank you for you idea,but I need what the mesh disapear for he can enter into the wall
But,your idea it serves me for another level!
that’s why I said the shape keys
I thought about making an invisible collision that makes a part of the mesh very small so that the ball can enter, but for that I need the ball to not have rotation so the small part is not seen, but that was not convenient, and I thought that simply eliminate the ball but does not give a sense of portal, my last idea is to make the floor has no collision and the ball goes down an invisible ramp and there disappears, is very farfetched but I can not think of anything else
edit: I remembered the “set mesh” node, I can make a ball with a split mesh and replace it with the ball, when I achieved that I will show you, I hope it works