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Emissive Maps?

Posted: Fri May 19, 2017 4:39 pm
by prisonbread
Hey guys, I've been working on a lot of electronic components lately - rack server face plates mostly. I have created diffuse, displacement, and gloss maps in illustrator/photoshop and so far that is working beautifully; creating all of the geometry I need with displacement. But what I'd really like is to have an emissive map to add little lights to the various buttons and illumination to the screens of these models. So far, I am adding emissive maps by texturing a plain (using opacity and emission) and placing the plain just in front of the object's face that I want to affect. This works in some cases, but it doesn't account for the displacement so some lights are either buried in geometry or floating out in front of the surface.

I understand that only diffuse objects can hold an emission texture and most of the surfaces I'm wanting to affect are glossy materials. So, is there a way to make a diffuse emissive overlay that can respond to the varied heights of the surface?

Re: Emissive Maps?

Posted: Sat May 20, 2017 1:47 am
by Rev
If you're unable to apply the emissive textures only to the lights via selection tags due to displacement, you can just use a mix material to mix a glossy material with an emmisive one. You can then paint a map for which parts should be emissive vs glossy and use that for the mix amount.