matte/alpha question

[Aaron2004]

Hello,

 

How do I get a matte object to keep the shadows that it is casting on itself?

 

I am trying to make a wall of an exterior rendering of my house a matte object, allowing me to take the rendering into photoshop and change the wall colors (more or less).

 

While there are shadows on the space where the wall was, the shadows that the wall was casting on itself are no long there...because it's a matte object, I guess.

 

Thanks,

 

Aaron

[Aaron2004]

Good 'ol Vlado answered my post on Chaos Group.

 

I needed to uncheck the "No GI on other mattes" box.