[Arnold] Standard shader AOVs and shading trees

Here’s a question asked recently. Given a shading tree like the one below, why don’t AOVs like diffuse_direct include the blended color from the Blend Color node?


The answer: because it is the Standard shader that writes the AOV, not the Blend Color shader. The diffuse_direct AOV gets the diffuse layer calculated by the Standard shader, and that’s it.

The MtoA AOV browser shows you what AOVs are implemented by which shaders:

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