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Learn how to use Karma Global AOV materials in Houdini to create a multiband ambient occlusion pass for compositing. This tutorial covers setting up a global AOV material, building multiple ambient occlusion ranges with MaterialX nodes, combining them into a single output, and connecting the result through the Karma render settings.

You’ll also explore practical techniques including creating Karma AOV nodes, enabling render vars from the Material Library, previewing the AOV in the render output, and customizing render vars with a Render Var Edit node. This workflow is valuable for artists who want to give compositors more control over ambient occlusion while keeping AOV setup efficient and scene-wide.

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CREATED BY

yolandac
YOLANDA CHARLO

SideFX Technical Consultant

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COMMENTS

  • LukeP 1 week ago  | 

    Absolutely love those how to videos. Should be a how to for every topic in the manual, including foundational and overview of ever node!

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