3D physics demos

Hey everyone, finally got some online demos to show you thanks to birdwing.

http://www.birdwingfx.com/slideth3/demolevel.html

Each of the demos takes only a few lines of code (and obviously the .obj models) to make.

Some issues with depth swapping which I will have a look at, but other than that fairly pleased with it.

Face face collisions are next, but they are a whole lot more complicated.

Let me know what you think. p.s my favorite is the large wireframe demo, at the bottom, maze is also pretty cool!