Forums Solaris and Karma Ambient Occlusion pass in the same .EXR

Ambient Occlusion pass in the same .EXR

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alunablue
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Hi,

How do I get Karma to render a Beauty pass and an Ambient Occlusion pass in the same .EXR ?

Any tutorials on this?

Thanks.
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robp_sidefx
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Here's an approach to setting up a material that will export ambient occlusion data alongside the beauty.

Attachments:
ao.hip (623.9 KB)

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alunablue
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robp_sidefx
Here's an approach to setting up a material that will export ambient occlusion data alongside the beauty.

Awesome.
Thanks!
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jsmack
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robp_sidefx
Here's an approach to setting up a material that will export ambient occlusion data alongside the beauty.

The ao should be plugged into the fg since the mix is at 0, because that's definitely affecting the beauty.
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alunablue
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jsmack
robp_sidefx
Here's an approach to setting up a material that will export ambient occlusion data alongside the beauty.

The ao should be plugged into the fg since the mix is at 0, because that's definitely affecting the beauty.

How is that done?
Thanks!
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jsmack
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alunablue
jsmack
robp_sidefx
Here's an approach to setting up a material that will export ambient occlusion data alongside the beauty.

The ao should be plugged into the fg since the mix is at 0, because that's definitely affecting the beauty.

How is that done?
Thanks!

I modified rob's file to show

Attachments:
ao_mod.hip (624.3 KB)

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robp_sidefx
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Whoops ... thanks Jon, yes I screwed up the Mix node settings in the original reply. Alternatively leave it plugged into BG and set Mix to 1.
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jsmack
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robp_sidefx
Whoops ... thanks Jon, yes I screwed up the Mix node settings in the original reply. Alternatively leave it plugged into BG and set Mix to 1.

That always gets me too. The order of the inputs of the mtlx mix node is confusing. It's inconsistent with the Houdini mix node/lerp function since it puts fg first.
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alunablue
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Thank you both very much.
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