I'm doing flat color diffuse-only renders as described here:

Rendering Diffuse Color pass in Cycles

This (understandably) always renders the background as black.

What nodes do I need to hook up if I want the world background color to show behind the diffuse-only rendered objects?

  • $\begingroup$ Probably use the environment of Render Layers and combine it with the output with a alpha over node $\endgroup$
    – WhatAMesh
    Sep 13, 2018 at 15:57
  • $\begingroup$ Q: Use multiple HDRIs or this answer $\endgroup$
    – Leander
    Sep 13, 2018 at 16:35


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