rays, part II

...and some boxes

Axis aligned boxes. Use numpad+/numpad- to increase/decrease their number.

some spheres

...bouncing on a plane. Some of them might (and most probably will) pass through the plane, or one through each other but, hey, it's a work in progress. I'll fix it soon, hopefully. Use the numpad+/numpad- keys to increase/decrease the number of spheres.

rays