I saw this thread and checked out of the tool. That first video which is not rendered looks like it has lot of FPS issues was hitching over and over again maybe his or her machine wasn’t up to the task. The second video is smooth but is pre rendered. Looks like it does a nice job but I dont see why you can’t find the objects you want to have collision and set it up at the mesh level like you can do when you don’t use this tool. Interesting note they made the same tool for Unity and wonder what issues come with it.