# Ambient Occlusion (AO) with GPU Lightmass

**URL:** <https://forums.unrealengine.com/t/ambient-occlusion-ao-with-gpu-lightmass/1998383>\
**Category:** Asset Creation\
**Tags:** baked-lighting, gpu-lightmass, unreal-engine, ambient-occlusion, Rendering\
**Created:** [August 30, 2024, 2:01pm UTC](https://forums.unrealengine.com/t/ambient-occlusion-ao-with-gpu-lightmass/1998383 "2024-08-30T14:01:05Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Dan.Smith2](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Dan.Smith2](https://forums.unrealengine.com/u/Dan.Smith2)\
**Post date:** [August 30, 2024, 2:01pm UTC](https://forums.unrealengine.com/t/ambient-occlusion-ao-with-gpu-lightmass/1998383/1 "2024-08-30T14:01:05Z")

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Hi, im baking my lights for VR with GPU lightmass, everything looks good but the AO could use a little boosting. I dont want to add the AO through the Post process, as it kills my VR performance, so is there a way to control the static lighting influence of the AO? I basically need heavier AO with GPU light mass if anybody knows?

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**Author:** ![david.gillespie](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@david.gillespie](https://forums.unrealengine.com/u/david.gillespie)\
**Post date:** [November 15, 2024, 11:15am UTC](https://forums.unrealengine.com/t/ambient-occlusion-ao-with-gpu-lightmass/1998383/2 "2024-11-15T11:15:23Z")

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I’m after the same - ambient occlusion control with GPU light mass

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**Author:** ![Anthony\_Attwood](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Anthony\_Attwood](https://forums.unrealengine.com/u/Anthony_Attwood)\
**Post date:** [December 19, 2025, 5:22am UTC](https://forums.unrealengine.com/t/ambient-occlusion-ao-with-gpu-lightmass/1998383/3 "2025-12-19T05:22:19Z")

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Yea I’ve also stumbled into this problem. I’m using forward shading for a VR project, GPU lightmass to take advantage of better light baking but there’s no ambient occlusion happening whatsoever. I even enabled the world setting for it.

Is it even possible?