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Is it possible to have "multi-color" emission?

For instance if I was modeling an iPhone, I would want the phone's screen to emit light - but not just one color. I'd want the light emitted to exactly match the colors of the screen that's emitting:

iPhone

Unfortunately I can't seem to find any possible way to accomplish this.

Any suggestions would be greatly appreciated.

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  • $\begingroup$ are you talking about emitting multiple colors with one material? $\endgroup$
    – ETHAN DAY
    Commented Oct 27, 2020 at 14:25
  • $\begingroup$ Yes, if possible. If there is another way to do this, I'm open to suggestions as well. Basically, I want an image (the iPhone's screen in my screenshot) to emit light corresponding to the actual colors used in the screenshot itself. This would look way more realistic than a single emission color. $\endgroup$
    – fmotion1
    Commented Oct 27, 2020 at 14:29
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    $\begingroup$ Hey :). You could simply run an image texture through the emission node... $\endgroup$
    – jachym michal
    Commented Oct 27, 2020 at 14:30
  • $\begingroup$ well, I think there is a way to achieve what you are trying to accomplish with mapping nodes among other things, but with something as complex as an i-phone, that would be a nightmare. what I would recommend doing, is making multiple materials, each with different emission settings, and then select the parts of the mesh you want to be effected by the desired lighting, and then assign the appropriate material. (I hope all that made sense) $\endgroup$
    – ETHAN DAY
    Commented Oct 27, 2020 at 14:32
  • $\begingroup$ @Jachym Michal - that would be great, thank you! Is there any way you could post a screenshot of the required node setup? I am not very good with nodes and more complex material setups. $\endgroup$
    – fmotion1
    Commented Oct 27, 2020 at 14:34

1 Answer 1

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Just to illustrate my comment :-).
Simply run an image texture through the Emission node.

enter image description here

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  • $\begingroup$ Perfect, thank you very much! $\endgroup$
    – fmotion1
    Commented Oct 27, 2020 at 17:16
  • $\begingroup$ Glad to be of help, good luck with your project :). $\endgroup$
    – jachym michal
    Commented Oct 27, 2020 at 20:25

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