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• $OCIO: Use the color space defined by your systems environment variable
• Off :  Scene Linear is defined as the scene wide color space
• ACES1.2 : Use the ACES 1.2 color space that ships with RenderMan 24
• Filmic Blender : Use the popular BT.709 colorspacecolor space
• Custom : Allows for a custom color space file to be specified
  
  

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