I've been on a bit of a 3D tangent lately, and with the latest construct release I can now do this little demo: a ball bouncing in a 3D space. Anyway.
Notes:
1. Collision: Is handled through 2 bouncing balls, one with it's Y axis restricted to the other's. By no means perfect, but produces a nice effect. One ball controls the Y and Z axis, the other controls the X. Would eventually like to figure how to do it with more than walls.
2. Textures made with the Genetica Viewer (Free)
http://www.spiralgraphics.biz/viewer/
3. Try changing the Eye distance to around 100, it's something a bit different to look at.