View Full Version : Mental ray and Blinn Shader : BLACK DOTS

07 July 2009, 07:49 PM

...ehhh..........well i must say

GODS OF ALL KNOWLEDGE " Bestow upon me , the pious shower of your wisdom "

Oops,......well im facing a problem rendering a piece of geometry in Maya 2008 mental ray with GI & Fg. Till i use a lambert shader things are fine, but as i use blinn ........I GET BLACK DOTS ALL OVER MY RENDER. but if i switch off raytrace, things are normal again even with blinn shader, but that turns off the FG as well..


Thanks in advance

07 July 2009, 01:14 AM
Could you post an image of your render?

Have you brought this piece of geometry into a separate scene where everything was rendering correctly?

07 July 2009, 02:26 PM
It's difficult to understand your problem. Whats your reason for insisting on using blinn? does using a mental ray shader solve the little black squares?

personally I used to use negative values in color offset of my textures sometimes (just lazy) and that in turn resulted in some black dots. I dont remember the technical explanation but i dont do it any more (duh) and don't get black dots.

08 August 2009, 03:01 AM
use all mia_material_x_passes

CGTalk Moderation
08 August 2009, 03:01 AM
This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.