A material node for getting object's lighting?

Geosmith Tech.
Fri, 05 May 2017 23:58:34 +0000
Rendering

Hello. This is a bit of a weird one but I’m wondering if there’s a node that lets you get the lighting that’s on the object using the material. Like say if there’s a shadow being cast on the object or the object is in a dark room so it would return a black value where the shadow is and a white value where there’s light.
If you still don’t get what I mean, imagine going into ‘show lighting only’ mode, is it possible to have that kind of view displayed on a material.

I’m trying to make a glow in the dark material, so if anyone knows a better way please share.

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