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V-ray questions

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  • B Offline
    BigTom
    last edited by 11 Nov 2010, 15:33

    @thomthom said:

    A slight variation:
    Bumpmap: Blend
    - Texture A: Noise - Size: 50
    - Texture B: Bulge
    Blend Ratio: 0.25 (75% Texture A)

    This just add the slight bulging which you often see in windows.

    What layer are you placing this bumpmap to? I've looked through this thread and I haven't been able to find it exactly. If there is another thread which explains it I'll gladly go there.

    http://www.tomsherrillillustrations.com

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    • T Offline
      thomthom
      last edited by 11 Nov 2010, 15:54

      Bump map isn't a layer of its own - but a map applied to the material. Look at the bottom of the material properties in the VfSU editor. You have a bunch of checkboxes and map slots.

      Thomas Thomassen β€” SketchUp Monkey & Coding addict
      List of my plugins and link to the CookieWare fund

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      • B Offline
        BigTom
        last edited by 11 Nov 2010, 17:00

        I need to set the UVW Type to UVWGenPlanarWorld for both Texture A and Texture B?

        For Texture A use the default Noise settings? There are so many I'm a little perplexed by them.

        Use the default Bulge settings in Texture B?

        http://www.tomsherrillillustrations.com

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        • B Offline
          BigTom
          last edited by 12 Nov 2010, 18:42

          I got it to work! Thanks THomThom - your posts have been a big help and I've gotten closer to mastering this skill.

          I'm still left trying to understand all the many parameters available in the materials panels. The TexNoise, TexBlend etc have so many posible variables and the operator manuals I've read don't address them all. (things like amplitude, frequency, persistence, inflection, bias, etc)

          Can anyone recommend resources that help to explain the vray materials and texture panels parameters fully?

          http://www.tomsherrillillustrations.com

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          • T Offline
            thomthom
            last edited by 12 Nov 2010, 18:50

            I'm a wee bit confused to all them myself to be honest... πŸ˜• Essentially with the latest release where we have all these new procedural maps.

            Thomas Thomassen β€” SketchUp Monkey & Coding addict
            List of my plugins and link to the CookieWare fund

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            • B Offline
              BigTom
              last edited by 12 Nov 2010, 19:01

              UhOh - if you don't know these things it seems that much more daunting!

              http://www.tomsherrillillustrations.com

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              • T Offline
                thomthom
                last edited by 12 Nov 2010, 19:03

                I've been meaning to do some experiments with them. But never got around.
                So if you look at them and work out what some of these parameters do - them please post back to the forum. I'd appreciate it.

                Thomas Thomassen β€” SketchUp Monkey & Coding addict
                List of my plugins and link to the CookieWare fund

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                • N Offline
                  nicolerouillard
                  last edited by 5 Apr 2011, 15:27

                  @thomthom said:

                  @solo said:

                  below is an image of a render in progress, it's a studio setup that has blotchy artifacts in the shadows, how does one overcome it?

                  In the DMC Sampler section of the Options. Is the adaptive Amount set to 0.85?
                  You are likely to get splotches if this is set to 1.

                  Where is the DMC sampler, I have QMC sampler. Is this the same?

                  N

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                  • F Offline
                    fjrentas
                    last edited by 5 Apr 2011, 19:45

                    @unknownuser said:

                    Where is the DMC sampler, I have QMC sampler. Is this the same?

                    Then you have a very old version. You need to update your version to the latest one.

                    http://software.asgvis.com/index.php?option=com_content&view=article&id=253&Itemid=53

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                    • E Offline
                      eddiemoney
                      last edited by 3 May 2012, 18:38

                      awesome post, thanks for the help! upping the subdivisions fixed the issue for me πŸ˜„

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