# GPU lightmass doesn't cast shadow (stationary light, static geometry) **URL:** \ **Category:** Rendering\ **Tags:** Shadows, gpu-lightmass, unreal-engine, question\ **Created:** [July 6, 2023, 4:40pm UTC](https://forums.unrealengine.com/t/gpu-lightmass-doesnt-cast-shadow-stationary-light-static-geometry/1221447 "2023-07-06T16:40:07Z")\ **Posts on this page:** 1\ **Showing post:** 12
**Author:** ![Kettenotter](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/kettenotter/32/620822_2.png) [@Kettenotter](https://forums.unrealengine.com/u/Kettenotter)\ **Post date:** [February 2, 2024, 11:13am UTC](https://forums.unrealengine.com/t/gpu-lightmass-doesnt-cast-shadow-stationary-light-static-geometry/1221447/12 "2024-02-02T11:13:06Z")
Okay for everybody having still problems you can look into this one for a fix: > [@GPU Lightmass not working on Landscape](https://forums.unrealengine.com/t/gpu-lightmass-not-working-on-landscape/1371174/17): > > Hi @hieblertom , @brisck1 @glitchered @Matthew.Ivey @motorsep @Miguel1900 , There appear to be a fix to this problem, according to the above link. This is a commit for 5.4, but its been quite easy to convert to 5.3.2 I have put the replacement binary dll file in a new repository along with the updated source. [EpicGPULightMass Landscape 5.3.2 Patch/README.md](https://github.com/jimshalo10/EpicGPULightMassPatch/blob/main/README.md) This has been built to work with 5.3.2 The only was this can be tested is by the people highlighted Therefore please can you report … Supposedly they fixed it in 5.4 and someone ported the fix to 5.3. --- _[View the full topic](https://forums.unrealengine.com/t/gpu-lightmass-doesnt-cast-shadow-stationary-light-static-geometry/1221447)._