Render mesh topology

I would like to know if it is certain that Rhino.DocObjects.RhinoObject.GetRenderMeshes always returns triangular meshes or if it is possible that some meshes have quads?

It is certain you can get a mix of both. The mesher tries to start with quads, but will triangulate in places where necessary.

So: it is possible to get quads from GetRenderMeshes

Okay, thanks Nathan