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Brecht Van Lommel d64661b507 Cycles: add Ray Length output to Light Path node. This gives the distance travelled ...

by the last light ray. One use case for this might be to do absorption.

Patch #31232 by Agustin benavidez, see this blog post for details:
http://agus3d.blogspot.com.ar/2012/05/blender-cycles-ray-length-node-output.html

2012-05-02 17:03:46 +00:00

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