First of all: Great resource, I would have been lost without your vids and the info on this post. secondly, I am having an error in game in which when I spawn a static shape via "new StaticShape()" the physics tab is removed from the world editor and my player won't be able to collide with the shape. I'd assume this is my physics engine crashing but I'm not very knowledgeable on debugging this kind of thing. where should I start? edit: so i now understand that staticshapes won't have collision in physx. that's fine, ill just use tsstatics in their place. why exactly does the physics drop down menu in the editor just dissapear sometimes? Are there documents that outline the differences of stock torque physics and physx physics in reguards to raycasting, collision detection, etc..?