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Oliver Navarro Schroeder avatar image
Oliver Navarro Schroeder asked ·

How can i render Object Masks for Procedural Objects?

proceduralsmasksmask
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Peter Horvath avatar image
Peter Horvath answered ·

It's a limitation, object mask can not be used with a procedural.

Object mask is actually an aov_write_float shader added to the root of the shading tree, thus it would require to modify the shader network inside the procedural, which is rather complicated.

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Oliver Navarro Schroeder avatar image
Oliver Navarro Schroeder answered ·

Thanks for the clarification, Peter!

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Oliver Navarro Schroeder avatar image
Oliver Navarro Schroeder answered ·

When an Object Mask Tag is added to an Arnold Procedural, the object mask aov does not create any result. It seems as if it is a problem for the Object mask to work on an external file/object that is not in the scene?

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