Named face on DAE mesh.

Is it possible to name a surface group on a mesh, for example 3 vertices that make up a face?

I want to be able to track the orientation of the normal for a face in order to decide if it’s facing the camera.

I am exporting from Swift3D.

John

Yes all geometric primitives have a name attribute that you can use for that. See <triangles>, <polylist>, etc…