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Light Driven by Layer Brightness

Posted: August 13th, 2009, 12:16 pm
by bendingpixels
Hi All, How would I go about using the brightness of a layer (flickering fire in fireplace) to control the brightness of a light. I need to fake some shadows being cast by the fire and I would like them to match the flickering as closely as possible.

Thanks!

Re: Light Driven by Layer Brightness

Posted: August 14th, 2009, 12:04 pm
by Yenaphe
You canuse maltaannon's Pixl sampler free custom effect, you'll be able to do easily something like you want to achieve:

http://maltaannon.com/articles/after-ef ... elsampler/

Re: Light Driven by Layer Brightness

Posted: August 14th, 2009, 1:06 pm
by bendingpixels
Hey! thanks! I think that might do the trick! Wow, is that guy amazing...