Hey guys.

Is there any support for Subdivision with combined loop scheme for triangles in OpenGL or any of the render outputs?

AFAIK Houdini only supports the Catmull-Clark scheme. However if you are dumping out RIB you can set the detail string attribute ri_subdivscheme to be whatever you want. (The default is “catmull-clark”)

That was fast

Thanks for the pointers to the RIB output. MentalRay also has support for loop scheme since 3.4 I believe. In XSI there is an option to use Catmull Clark with loop scheme for triangles. I’ve experimented some with this and have noticed that when it comes to triangle poles such as those on spheres it creates a clean transitions with quadrilaterals and the resulting geometry is noticeably smoother than with quad subdivision only.

Cheers