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This page gives an overview of the matte render elements that may be generated through V-Ray and how they are used in compositing.

 

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The colors and values generated for each matte render element depend on the type of render element is used:

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  • Cryptomatte Render Element - Uses the Cryptomatte convention by Psypop to encode mattes into multichannel OpenEXRs.
  • Multi Matte Render Element - Colors based on Object ID or Material ID, with RGB colors only. Anti-aliasing is supported.

  • Object ID Render Element - Colors or values based on Object ID (G-Buffer ID). A wide range of colors is possible. Anti-aliasing is supported for color.

  • Render ID Render Element - Colors based on the node ID or node handle. A wide range of colors is possible. Anti-aliasing is not supported.

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Multi Matte Render Element

 

 

 

 

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Notes

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  • Matte elements can be combined with or subtracted from a composite to generate complex mattes.

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