is it really necessary to show the physx logo if you use physx? i didn't know that...



jcl, you wouldn't have to implement it yourself from scratch.

at the moment the ellipsoid system uses the open source OPCODE library as far as i know? that's outdated...

the new state of the art open source collision libraries are newton and bullet. you could use one of them instead. their convex hull systems are even better than what physx has to offer. they both use the very liberal zlib license now and their collision systems can be used independently from their physics systems.

(but if you are at it you could implement their physics aswell since it makes a lot of sense if only one collision system gets used for everything.)