# How to get the scene Accelerate Structure (TLAS) for custom Ray Tracing

**URL:** <https://forums.unrealengine.com/t/how-to-get-the-scene-accelerate-structure-tlas-for-custom-ray-tracing/696723>\
**Category:** Rendering\
**Tags:** Ray-Tracing, UE5-0, Rendering\
**Created:** [November 22, 2022, 12:57pm UTC](https://forums.unrealengine.com/t/how-to-get-the-scene-accelerate-structure-tlas-for-custom-ray-tracing/696723 "2022-11-22T12:57:29Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![ceccocats](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@ceccocats](https://forums.unrealengine.com/u/ceccocats)\
**Post date:** [December 23, 2023, 2:05pm UTC](https://forums.unrealengine.com/t/how-to-get-the-scene-accelerate-structure-tlas-for-custom-ray-tracing/696723/4 "2023-12-23T14:05:56Z")

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> [@FluffyBunnyO](#):
>
> ```auto
> GetWorld()->Scene->GetRenderScene()->RayTracingScene->GetLayerSRVChecked(ERayTracingSceneLayer::Base);
> 
> ```

Do you know if this feature is available on linux? I tried to run it on linux but I have the same issue of this topic: [Help needed: have a problem with custom RTX shader plugin](https://forums.unrealengine.com/t/help-needed-have-a-problem-with-custom-rtx-shader-plugin/1189733)

Off course I enabled Ray Traced Shadows and Ray Traced Skylight but on linux is still failing on GetLayerSRVChecked.

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