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Lights - Setting Diffuse/Spec options

Doc AcmeDoc Acme Posts: 1,153
in Technical Help (nuts n bolts)

I found this last night, I guess by accident, but can't now.  There's an option SOMEWHERE (one would think it would be in the Lights panel) to optionally enable a lights Spec & Diffusion attributes.  

Where is that found? 

Comments

  • jestmartjestmart Posts: 4,449

    Those options are only for 3Delight render lights.

  • fastbike1fastbike1 Posts: 4,082
    edited April 2019

    You need to be set for 3DL renders.

    Oops, too slow.

    Post edited by fastbike1 on
  • JonnyRayJonnyRay Posts: 1,744

    one of the features of a biased rendering engine like 3Delight is the ability to customize how lights and surfaces work (e.g. specular only lights or objects that don't cast shadows). SOME of that is possible with Iray (with light paths), but a LOT harder.

    However, if you just want to adjust diffuse and specular strengths in post work, you can use Iray canvases to separate the two and layer them together in something like GIMP or Photoshop.

  • Doc AcmeDoc Acme Posts: 1,153

    Interesting, or rather strange & curious.  Didn't realize I was in 3Delight so makes sense now.  New system w/ dual RTX cards so mostly testing things with the GPU's in Iray.

    Thanks.

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