problem sub-d and mentalray
 

Hey i got problem with rendering sub-d`s with mentalray renderer!!! Is there something that is needed to be turned on???

MR only renders quad faces.

try collapsing you geo, or manually making your base mesh all quads.

its in the docs.

Dont get this last word!!! I think that all of sub-d are quads!!! I will try to get rid of triangles if there are any!!! Thank m8!!!

maya supports non-quad subD's.
subD's are not "all quads"
use your selection mask in the edit poly menu,so u can only select tri faces or n-gons,
docs = documentation or help files.