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Tim Leonard avatar image
Tim Leonard asked ·

How do I get an ambient occlusion AOV pass? Is it possible? Material override soon?

aovs
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Andreas Bjørshol avatar image
Andreas Bjørshol answered ·

Had the same problem! Make sure to connect a standard surface to the "passthrough" input of your AOV Write node, and then assign the AOV Write node to the objects in the scene.

Doing this made it work for me, although I wish I could assign multiple custom AOVs like ambient occlusion and material ID to the same objects in the same render.

Any way to do this?

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Todd Villeneuve avatar image
Todd Villeneuve answered ·

Thanks guys, but I'm still not getting any AO. I select file type Jpeg, I select 'No Mat' button, create a shader (Standard Surface) I drag an instance in the material editor, and pipe an AO into the base color. I hit, add AOV, type AO into the 'enter Custom AOV name, hit add...render...and see the AO file, but it's black...is it the wrong shader? I tried the AO in the 'map' option but got nothing...does this make sense

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Carlos Dordelly avatar image
Carlos Dordelly answered ·

You can get the global AO with the AOV shaders in the render settings:

https://support.solidangle.com/display/A5AF3DSUG/AOVs

Just create one material with the write shader just like said @Shawn Kearney and put this material in the AOV shaders menu.

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Shawn Kearney avatar image
Shawn Kearney answered ·

You can use Write AOV Float. Just pipe AO node into the AOV Input, name it 'Ambient_Occlusion' and add the custom AOV. Unless you're using some kind of global AO I don't know about?

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