Ambient occlusion in multi pass is gone

[pleiada]

I can't find ambient occlusion in multi pass. Can somebody help?

https://drive.google.com/file/d/140lSlO1MQcCIycvDLfx8svgBaJii7Ph4/view?usp=sharing

[Stephen.Blair · Accepted solution]

Was there ever an ambient occlusion built-in AOV?
Not in Arnold.

[pleiada]

Yes, I used to check it in Arnold multi pass aov. In previous renders I have it in my exr folder.

[Stephen.Blair]

That was probably a custom AOV, not a built-in AOV

[pleiada]

Looks like I used another render engine , not Arnold.

[peter.horvath6V6K3]

You can create a custom AOV. Create a material with the ambient_occlusion shader connected to the input of an aov_write_rgb shader. Then drop the material to the AOV shaders field in the render settings.