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A simple white model

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  • A simple white model

    I could use some hand holding on this model. I'm trying to get more light into the scene.

    Just in front of the wall with the logo are some windows and doors. This is the only area where natural light is allowed to enter.

    I have approx. 26 spot lights around the perimeter of the room at the ceiling. They are set with Inverse Square and an ungodly 10,000 multiplier.

    The 26 spot lights is amount being used in real life.

    My white materail is approx. RGB=245 and I have a skydome with a multiplier of two.

    Another curiosity I have is that the image seems to be flat. Like the GI is the same across the entire image. Meaning, not enought contrast between dark and light areas.

    The image below is my most recent test. I've uploaded my settings as well in case someone wants to take a look at them.

    In AIR, I got use to relying on my toon lines to bring out details. Now, I need details without the toon option.

    My last question is about a term my industry calls Halo lighting. Its when an object, say for example the logo on the wall (the "e"), is lit from behind. Doing so will create a band of light the same shape of the "e" on the wall behind it. Is this possible in Vray?

    Any ideas on how to end up with a nice white model would be appreciated.

    Regards,
    Bill


    http://www.3-dimensional.com/Vray/3Di.visopt

  • #2
    A simple white model

    Bill, I recommend to use a white color of 210,210,210 and adjust the brightness per intensity of the lights.

    Also, I would use the QMC-LC like ala Vlados universal method.

    If you don't need spotlights (I see no spot effect in your image), than I would recommend to use light emitter materials for the lights. This could help to get much more speed in GI mode.

    Halo effect: I would assign a light material to the hidden surface on the backside of the "e". Should not be a problem.
    www.simulacrum.de - visualization for designer and architects

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    • #3
      A simple white model

      Hi Micha,

      Originally I had my white set to 214 and cranked it up to 245 for this image.

      The lighting behind the stairs on the floor is from the spot lights.

      On earlier tests, I started with QMC-LC but I didn't seem to get enough light into the environment. Maybe I need to try that again.

      Tell me more about light emitter. I like how Maxwell uses emitters. Is the Emulsive layer the "emitter". Is so, then I can see how this would work for halo lighting behind the logo.

      Bill

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      • #4
        A simple white model

        I think, if you lower the white value of the walls, than you limit the GI bounce and get more contrast in the image - 245 is to high.

        The lighting behind the stairs dosn't look like special spotlight light. I would try planes with an emitter material.

        Emitter material: yes it is the "emisssive layer". It's like the emitter material of Maxwell or the textured constant shader of AIR. You can use textures and you can use any surface you like. For your example I would extract the surface on the backface and assign an emitter material.
        www.simulacrum.de - visualization for designer and architects

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        • #5
          A simple white model

          Thank you Micha - I will give that a try tonight and go back to the QMC-LC settings.

          Bill

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