View Full Version : how to composite xsi shadowpasses???

05 May 2003, 07:56 AM
does anyone know how to composite an xsi shadowpass with a regular pass in combustion???

im totally stumped.

05 May 2003, 08:49 AM

Composite the shadow pass layer over the other layers in the composite and use a transfer mode (in the surface menu) to combine your shadow pass with the background.

Hope this helps.


Discreet UK

05 May 2003, 04:05 PM
There's a number of ways, XSI outputs shadows as white, because it's a matte, use this matte to control brightness/contrast or simply invert it and multiply it over your image

05 May 2003, 05:44 PM
hi guys, thanks for the reply,

i tried inverting and multiplying and it doesn't give the same look as if i were to render straight from xsi. also, i tried the different surface modes but none of them look right.....

how might i make a matte out of the shadow pass to do colorcorrection on the original still?


05 May 2003, 12:48 AM
The shadowpass itself *is* a matte ;)

Here's two ways, done with the FXtree inside xsi but it works similar in other apps as well. Both trees produce a similar image.

05 May 2003, 05:38 PM
thankyou!! that helped alot. i really appreciate it.


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