View Full Version : MR not spiting out alpha cha W tiffs
01-27-2005, 09:06 PM
I am rendering with MR and rendering out tiffs, in the image File output, Alpha channel is grey out. When I open the tiffs in PS I don't get an alpha channel, it seems to be inbedded in. Am I doing something wrong or is it a glitch. If I open F-check, I can save them back out as tiffs, but the problem is it screws up the frame # ext.
01-27-2005, 09:19 PM
Stay away from using tiffs with mental ray, there are some buggy issues with them, especially if you use any type of compression on them.
01-28-2005, 01:28 AM
ha! I just had this problem yesterday - thought it was somthing AE was doing . . .
01-29-2005, 03:49 PM
have you tried checking the Pass Surface Alpha
in your render globals -Mental Ray tab
scroll down under the Custom Entities
check the box Pass Surface Color Alpha Channel
This will make it show up as solid alpha
01-29-2006, 04:00 PM
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