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Rendering with Arnold in CINEMA 4D using the C4DtoA plug-in.
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SPOT LIGHT AS MASK

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Message 1 of 3
Anonymous
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SPOT LIGHT AS MASK

I'm looking for a way to make a mask out of the area the light hits and object or objects it hits. The best I can do is a diffuse pass of the light compositing it with a shadow pass. I'm just trying to think of a better way of doing this. here is roughly what my scene looks like. spot-light-matte.png

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Message 2 of 3
Stephen.Blair
in reply to: Anonymous

You can separate out the light contribution with a light group AOV. Maybe you can make that into a mask?



// Stephen Blair
// Arnold Renderer Support
Message 3 of 3
lee_griggs
in reply to: Anonymous

If it had UVs you could also try to bake it.

Lee Griggs
Arnold rendering specialist
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