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Iray Mesh Lights

thomvinsonthomvinson Posts: 79
in Technical Help (nuts n bolts)

Why don't Iray Meshlights show up under the "Lights" tab? It seems silly that they don't. I have to select them in "Scene" then use "Surfaces" to adjust them, kinda counter intuitive and bassackwards seeming. . .

Comments

  • Richard HaseltineRichard Haseltine Posts: 101,010

    Because a meshlight is a surface shader on a model, it differs from a non-meshlight in only one set of parameters. The same is true, except that the light really is using a different shader, in 3Delight.

  • ToborTobor Posts: 2,300

    Because there's no such thing as an Iray mesh light. What you are calling a mesh light is merely geometry with a specific shader setting applied to it. Only Iray understands these as having the potential to emit light, and by how much. It's very possible (in fact more likely) that a geometry with its emissive property set doesn't provide any scene lighting at all. It's just a self-luminous object. How is D|S to know the difference?

     

     

  • thomvinsonthomvinson Posts: 79

    Thanks!

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