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how to make primitive invisible but reflect light?

BlazmethBlazmeth Posts: 36
in New Users

I made a small reflector, right next to my model face and I want it to reflect light, but not be visible in the render. I tried all the settings I could think off without success!

I am rendering with Iray if it changes anything.

Thx!

Comments

  • dracorndracorn Posts: 2,345

    After you have added luminance to your object, set the Cutout Opacity of that object to zero.

  • Richard HaseltineRichard Haseltine Posts: 100,842
    dracorn said:

    After you have added luminance to your object, set the Cutout Opacity of that object to zero.

    almost zero.

  • BlazmethBlazmeth Posts: 36
    dracorn said:

    After you have added luminance to your object, set the Cutout Opacity of that object to zero.

    This was just a normal plane made via the create primitive menu item, it does not have luminance in the surface menu. Or is it somewhere else?!?

  • Richard HaseltineRichard Haseltine Posts: 100,842

    I think the suggestion is to apply the Emissive shader preset to your reflector, assuming you mean in the sense of a photography reflector bouncing light onto a subject (and that you are rendering in Iray).

  • BlazmethBlazmeth Posts: 36

    Great, it kinda work. I used to do a lot of portrait photography, so it is more natural for me to recreate my setups. But with the Emissive trick, it worked.

    On the other hand, I dont undersntad why, when I was in the surface menu under Iray, searching for Emi did not show the Emissive Shader. I had to find it manually. Weird and caused me a lot of waste time!

    Thanks!

  • Richard HaseltineRichard Haseltine Posts: 100,842

    In the Editor tab or the Presets tab?

  • FishtalesFishtales Posts: 6,119

    When a primitive is used in Studio it is loaded with the DAZ default shader which is for 3DLight and there is no Emissive channel but selecting it in the surface tab and using the Iray Uber shader adds it to the surface.

  • Richard HaseltineRichard Haseltine Posts: 100,842
    Fishtales said:

    When a primitive is used in Studio it is loaded with the DAZ default shader which is for 3DLight and there is no Emissive channel but selecting it in the surface tab and using the Iray Uber shader adds it to the surface.

    True in 4.10.0.123, but the 4.11 cycle is chnaging that to use the default sahder for the current render engine http://docs.daz3d.com/doku.php/public/software/dazstudio/4/change_log#4_11_0_191

  • FishtalesFishtales Posts: 6,119
    Richard Haseltine said:
    Fishtales said:

    When a primitive is used in Studio it is loaded with the DAZ default shader which is for 3DLight and there is no Emissive channel but selecting it in the surface tab and using the Iray Uber shader adds it to the surface.

    True in 4.10.0.123, but the 4.11 cycle is chnaging that to use the default sahder for the current render engine http://docs.daz3d.com/doku.php/public/software/dazstudio/4/change_log#4_11_0_191

    Thanks Richard. I haven't used 4.11 for a while so haven't noticed that but I'll look next time smiley

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