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Applying Emissive Shaders on Common Objects --like lamps?

colinmac2colinmac2 Posts: 407
in Technical Help (nuts n bolts)

I'm trying to use the lamps and window as light in my South Beach Deco scene. The window was. . .  easy-ish, but I can't apply an emissive shader to the lamps!  How do I fix this?

Comments

  • fixmypcmikefixmypcmike Posts: 19,583

    What problem are you having?

  • colinmac2colinmac2 Posts: 407

    The lamps won't light, basically.  I've managed to add an emissive shader to one but not the other, but neither of them will illuminate anything.

  • fixmypcmikefixmypcmike Posts: 19,583

    On the one you can't apply the shader to, do you have the surface selected as well as the item in the scene?

  • colinmac2colinmac2 Posts: 407

    I have the surface selected, but the emissive shader's not showing up.  I honestly don't remember how I got the shader on the other light.  Problem is, neither one of them will give light.  

  • KhoryKhory Posts: 3,854

    Be sure that the emissive color is not black and then adjust the luminosity till it is high enough to cast light in your scene.

  • colinmac2colinmac2 Posts: 407

    But I CAN'T APPLY the emissive color.  It's not listed on the shader list.

  • mjc1016mjc1016 Posts: 15,001
    colinmac2 said:

    But I CAN'T APPLY the emissive color.  It's not listed on the shader list.

    Is the shader on the lamp (all or just the part you are trying to make emissive) actually the Iray Uber?

     

  • colinmac2colinmac2 Posts: 407

    I'll be honest.  I don't know if it's the Iray Uber or not.  How do I tell?

  • colinmac2colinmac2 Posts: 407

    Can someone just start me at the beginning, or lead me to a tutorial/documetation on how to apply emissive shaders?

  • SzarkSzark Posts: 10,634
    edited March 2016

    1: Select Object

    2 Select Surface

    3 Apply Emissive Shader preset

    4 increase Luminance and/or adjust tone mapping.

    If you don't adjust Luminance and/or Tone mapping you probably won't see any light emitting for the surfaces. 

    At the top of the surfaces pane with a surface selected you will see the name of the shader currently used

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    emission.jpg
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    Post edited by Szark on
  • colinmac2colinmac2 Posts: 407

    OOOOOKay, THAT's where I was screwing up.  Had the blamed thing set on Age of Armor somehow.  Thank you all.

  • colinmac2colinmac2 Posts: 407

    Still can't get those lamps to light up sufficiently.

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  • Richard HaseltineRichard Haseltine Posts: 100,810

    Merged threads since it is essentially a continuation of the same topic at the moment.

    This is an Iray render? What are render Settings under Environment and Tone Mapping - if you ave the defaults then the light from the dome is going to completely swamp any plausible level of light from the emissive lights. Or is there an emissive shader applied to the window, looking at your earlier post?

  • colinmac2colinmac2 Posts: 407

    I applied an emissive to the window, and turned the iray lights to Scene Only in render settings.  Hadn't thought of changing Tone Mapping -- I'll look into it.

  • SzarkSzark Posts: 10,634
    colinmac2 said:

    Hadn't thought of changing Tone Mapping -- I'll look into it.

    I didn't mention it, perhaps you should pull back, relax a little and double read everything.

  • colinmac2colinmac2 Posts: 407

    No, no-- I've finally figured out what the problem was.  Changed the exposure and f-stop settings.

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