CGTalk - Volume Fog's Alpha Channel Value

View Full Version : Volume Fog's Alpha Channel Value

onuryeldan

01-29-2002, 05:06 AM

Hi,
I want to adjust volume fog's alpha channel value. For example, I want to see volume fog in RGB but I want it's alpha color to be black not white. How can I achieve this ?
Thanks...

SheepFactory

01-29-2002, 07:49 AM

hi onur whats up? ;)

i think the easiest way to do that is to invert the alpha channel in after effects or something similar.

A|i

onuryeldan

01-29-2002, 12:26 PM

Hi ALi ;) , but if i do as you say, all other objects alpha's would be black too. I want to do this just using XSI to speed up the whole process.

SheepFactory

01-29-2002, 02:10 PM

oh i thought you are rendering the fog seperately.

A|i

CGTalk Moderation

01-13-2006, 01:39 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.