Thank you very much Max

I have some more questions. I need help from you Sir. Please see this subdivision geometry:



I am trying to model a face. So far I am on a stage i want to mirror my Subdivision Geometry but it is giving me an error message which says (from _script_ editor):

"Error: polyToSubdiv1 (Poly To Subdiv Node): One or more vertices is nonmanifold.
// Nonmanifold geometry cannot be converted to a subdivision surface.
// To clean up nonmanifold vertices, use Mesh->Cleanup with the nonmanifold option. // "

I have tried to "clean up nonmanifold vertices" as instructed by _script_ editor, but it is still bringing similar error.

Secondly, could you please help me on Mental ray shading network for:
a) Wet shader?
b) Mental ray light Optical effects?

Thank you very much Sir. Looking Forward to hear from you soon