Compositing Shadows.

[bustamonkey]

Ok Last week I asked How I could get a shadow map, because I couldnt fing a separated channel for shadows in v-ray. Soo great I used V-raymtl wrapper and I saved it as an rpf storing the alpha.

The problem is when I imported it in combustion....the alplha included the objet I used as a shadow map. Soo please how can I get just the shadow

http://www.squareframe.com/files/vray.jpg[/img][/url]

[RErender]

Set the alpha contribution to -1 for you matte object.