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View Full Version : Transparent CG and floor but still keep shadows. Possible in lightwave?



oliversimonnet
03-10-2011, 04:23 PM
Hey guys i was wondering how to render out an image/animation with shadows but a transparent BG and floor, so you just have the character and its shadow. (for compositing an animation into a video)
Thanks in advance.

nickdigital
03-10-2011, 04:57 PM
Make a variant of your objects that you want to catch shadows with a Surface Opacity set to Shadow Density. You'll find it under the Advanced tab in the Surface Editor.

zardoz
03-10-2011, 05:15 PM
you can always try this
http://www.hdrlabs.com/sibl/framework.html

oliversimonnet
03-11-2011, 07:41 AM
Thanks nickdigital that was exactly what i was looking for :)
also thanks for the link zardoz

oliversimonnet
03-21-2011, 05:45 PM
Hello again
I tried to figure this one out myself but no luck.
is there a way to do the same thing as with the shadow but with the reflection?
so some way to render out a PNG with the reflection but no floor. if you get what i mean :)
Thanks a lot in advance.

nickdigital
03-21-2011, 07:20 PM
I believe render buffers will let you do what you want. You can isolate pretty much everything that way (diffuse, specular, reflection, depth, etc).

You could look into getting this:
http://www.db-w.com/products/exrtrader/about

Sekhar
03-21-2011, 07:51 PM
Just set the transparency to 100% and see if that's what you want.

oliversimonnet
03-22-2011, 07:30 AM
aaah thanks guys a combination of both your answers and a bit of photoshop gave me exactly what i was going for :)
Also thanks for the link nickdigital