V-Ray 8.1 [global switches]

"Global Switches"


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V-Ray Version 3.6:

  1. With Rhino open navigate to Render>Current Renderer> V-Ray for Rhino to select V-Ray as your current Rhino Renderer.
  2. Navigate to the  V-Ray Asset Editor (V-Ray>Asset Editor...) or click the Asset Editor button from the V-Ray toolbar (Shown below).[Premium Content - Login] [Membership Options]
  3. In the Asset Editor window, click on settings and then expand the window to the right.   Please make the changes outlined below: [Premium Content - Login] [Membership Options]

    • Under Renderer:
      • Choose CPU for Renderer -  You can select to use the CPU or the GPU for rendering.  For the lab computers I have found CPU works better.
      • Interactive set to "Off" -  When interactive is set to on, V-Ray will dynamically render your current viewport (assuming it is set to "V-Ray Interactive" mode).  This uses significant system resources and may slow down your computer.  Use it only when realtime previews are necessary.
      • Quality set to "Medium" - This is the render quality toggle.  Leave this at medium until you are ready to perform your high quality renderings.
    • Under Environment:
      • Click on the colored rectangle next to the word "Background."  (In the image above, the rectangle is black.)  The color picker window will appear (shown below).  Change the "Range" to be "0 to 255" and then type 250 in the R field, 252 in the G field, and 255 in the B field.  Close the wind when you are done.  The colored rectangle next to the word "Background" will now look almost white.[Premium Content - Login] [Membership Options]
    • Under "Global Illumination" (side drawer):
      • Primary Rays set to Brute Force
      • Secondary Rays set to Light Cache
    • "Caustics" (side drawer) toggled off - Use caustics only when rendering liquid and/or glass objects.
    • Under "Switches" (side drawer):
      • Check  “Lights” - If you turn off this setting, you will use only ambient, universal light in your final rendering. It will turn off all installed lights including suns.
      • Uncheck “Hidden Lights” If you choose to hide a light, you will want this box unchecked if you don’t want the light to be rendered in the scene even if it is hidden (usually by being placed on a hidden layer).

V-Ray Version 1.5:

  1. With Rhino open navigate to Render>Current Renderer> V-Ray for Rhino to select V-Ray as your current Rhino Renderer.
  2. You will notice the V-Ray tool bar appear as well as the V-Ray menu.
  3. Navigate to V-Ray>Options or click the Options button from the V-Ray toolbar (Shown below in red).[Premium Content - Login] [Membership Options]
  4. In the options window, expand “Global Switches.” Please make the changes outlined below: [Premium Content - Login] [Membership Options]

    • Uncheck “Default Lights” You can leave this on when you don’t have any lights in your rendering to get generic lighting conditions. You cannot edit these default lights. You should make sure to uncheck this box when you add your own lights to a scene.
    • Uncheck  “Show GI Only” Use this setting only if you want ambient, universal light in your final rendering. Once you add other lights, you will likely want to turn this option off.
    • Uncheck “Hidden Lights” If you choose to hide a light, you will want this box unchecked if you don’t want the light to be rendered in the scene even if it is hidden.
    • Check “Low Thread Priority” Keeps V-Ray from crashing other programs on the computer (hopefully).
  5. In the options window, expand “Environment.” Please make the changes outlined below:
    • Check “GI (Skylight)” Please click on the color next to “GI (Skylight) and type in R250, G252 & B255 to set the environment color.
    • Check “Background” This assigns the background color of the rendering. Change as necessary.  (Often white is a good background color)
  6. In the options window, expand “Indirect Illumination” Please make the changes outlined below:
    • Check “On” This turns Indirect Illumination on.

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