RenderMan@20: Ed Catmull and Dana Batali Reflect On Pixar's Killer App | AWN | Animation World Network

RenderMan@20: Ed Catmull and Dana Batali Reflect On Pixar's Killer App | AWN | Animation World Network: "'In some sense, tweakability means that you can program the local laws of physics to your own requirements. That's always been the basis of a RenderMan-centric pipeline. We have to be able to program everything. You don't want to program everything, but you have to have that option, and that's really why I think we're on pretty firm ground. We have to provide 'back doors.' The art of illusion is the art of programmability.'"