> Many 3D model formats specify culling per face (ie, per quad or triangle, > although most loaders deal only with triangles). Thus, the face fulling is > set, per face, and respected per face by the Mesh renderer, rather than being > set globally for the whole model. > > On Feb 22, 2011, at 3:56 PM, George Toledo wrote: > >> What is this in OpenGL terms? How would one emulate it?
And to answer the second part (how to emulate it) -- there's not a good way to do this. You'd have to reverse the polarity.. er, reverse the order of the vertices for triangles that faced the other direction. CL could plausibly reverse them, but it doesn't have information to know which direction culling was for that face. -- Christopher Wright christopher_wri...@apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list (Quartzcomposer-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
