Although the texture generator in Materials suggests light output (glow, not actual light emission) by being able to patch it as IRGB, it is not visible in a scene with no other light or without ambient lighting. To make it possible to actual control the intensity of an object I would like to be able to patch the luminescence property of materials. This could also make for a good LED strip simulator.
Floriaan Ganzevoort Lighting Designer - Theatermachine
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