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Is there a way to create a light-independent shader in cycles? The purpose is to create "green screens" to separate a 3d image into depth layers. The output will be a single rgb value (e.g. 0R, 1.0G, 0B) that can be color-selected and set to transparent in Photoshop or GIMP.

The reason to do this instead of using a depth layer to filter a single rendering pass is so that the foreground can be omitted from background renders in a parallax video.

Note: yes, all visibility in the object is off except for the camera.

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You can get the transparent background for free. Just enable Transparent under Render > Film.

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In case there really is no way around the green screen, use an emission shader for your plate, set its color to green and disable all Ray Visibility options except Camera Visibility.

enter image description here

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  • $\begingroup$ Excellent, thanks! Your first option is the best; had to use your second option since background elements affect the lighting for the foreground elements. $\endgroup$
    – Lowlande52
    Oct 29, 2017 at 20:07

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