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Does Iray use emissive maps?

McGyverMcGyver Posts: 7,067
edited December 1969 in The Commons

I haven't yet taken the plunge into using Iray, I figured I'd read up on it first... I know IRay uses emissive materials, but I didn't see any mention of the use of emissive maps (or I missed it).
I Googled several different variations of this question, but all I see are the same articles or threads... I'm guessing the answer is no, but I thought I'd ask.
Thanks in advance for any info on this.

Comments

  • BeeMKayBeeMKay Posts: 7,019
    edited May 2015

    If you apply the emmissive shader to a material, you can then load a map similar to a diffuse map. If this is what you mean, I'm not sure, though.

    Post edited by BeeMKay on
  • Oso3DOso3D Posts: 15,045
    edited December 1969

    Yes, easily.
    Most (all?) Iray shaders have an Emission channel. Once you set the color of Emission to anything except black, more options unhide (generally, temperature and luminosity).
    You can put a map into Emission, and there you go... put in whatever you want.

    For example, if you want a 'do it yourself' skydome of, say, stars, you could put the star diffuse map into the emission map, to make sure the stars are nice and bright.

  • McGyverMcGyver Posts: 7,067
    edited December 1969

    Thanks!
    Yes, one of the things I was wishing to do is create a night texture for some large buildings I made... Using an emissive map, I can illuminate the windows and have a skyline at night effect.
    This is pretty cool... I hope I can get it to work.

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