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How to light something up using surfaces tab

ToobisToobis Posts: 990
in The Commons
So say I wanted to turn a simple iray door or anything for that matter, so that its glowing like a light effect. How would this be done using surfaces tabs? What is the most simple process please.

Comments

  • COMIXIANTCOMIXIANT Posts: 260

    You need to set "Emissive Colour" to anything other than black (I recommend using pure white the first time you use it).

    Once you set a colour, you will see new parameters appear below.
    Pay special attention to "Luminance" and "Luminance Units".

     

  • ToobisToobis Posts: 990
    COMIXIANT said:

    You need to set "Emissive Colour" to anything other than black (I recommend using pure white the first time you use it).

    Once you set a colour, you will see new parameters appear below.
    Pay special attention to "Luminance" and "Luminance Units".

     

    Thankssssssssss!
  • SilverGirlSilverGirl Posts: 2,827

    Toobis said:

    COMIXIANT said:

    You need to set "Emissive Colour" to anything other than black (I recommend using pure white the first time you use it).

    Once you set a colour, you will see new parameters appear below.
    Pay special attention to "Luminance" and "Luminance Units".

     

    Thankssssssssss!

    And as a quick tip (that you've maybe already figured out) if you have something else with the appropriate amount of brightness (or color, if you're trying for colors), copy down the info and enter it into your new emissive. It's not a 1:1, especially if the two objects aren't similar in size, but it can at least cut down on the experimentation.

  • Silas3DSilas3D Posts: 735
    edited May 25

    Something else that's critical for a realistic glow effect is bloom - this can be added in postwork, but if you go to the filtering section of the render settings tab, there is a built in bloom filter with multiple settings once enabled. You may also have some lighting products installed that come with predefined bloom settings that you can use as a starting point.

    Post edited by Silas3D on
  • TomhipTomhip Posts: 565

    Also sometimes I find products that use different Materials Settings so you can always try to apply Iray Uber shader if you cannot see Emissive Panels.

  • jmucchiellojmucchiello Posts: 612

    Once you figure that out, go to Content Library - Scripts - Utilities - Create Advanced IRAY Properties. (While the primitive you've turned into an emissive surface is selected in the scene)

    In the little dialog box check "Iray Visible to Primary Rays" and "Iray Ghost Factor"

    Go to the parameters details page. Set Iray Visible to Primary Rays to OFF and Ghost Factor to anything > 1. 

    And you've now created a Ghost Light. Drop those things anywhere not to close to a reflective surface and there's just light without any object getting in the way.

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