Rendering

Topic	Replies	Views	Activity
Lumen GI and Reflections feedback thread Lumen , unreal-engine , Staff-Pick-UE Hi everyone, I’m starting this thread for feedback and discussion about Lumen GI and Reflections in UE5. We’re under a lot of pressure with internal deadlines so can’t promise responses, but we will read everything here…	2380	157597	June 26, 2026
RAD Game Tools’ Oodle—cross-platform data compression solutions unreal-engine	29	15874	November 17, 2021
UE 5.7.x Linux – VK_ERROR_DEVICE_LOST in Vulkan RHI question , unreal-engine	20	1446	July 14, 2026
开启 Raytracing 之后 SkinCache 的数据暴涨 question , Rendering , skeletalmesh , unreal-engine , Raytracing	0	5	July 14, 2026
Tranlslucency bug in the interior. question , editor , bug-report , unreal-engine	3	58	July 14, 2026
I encountered a problem with Volumetric shadow from volumetric fog question , unreal-engine	1	16	July 14, 2026
quest3 VR shows not the same as twinmotion viewport , even with ultra settings question , twinmotion	0	6	July 14, 2026
Prevent Mesh/Ocean/Water (Single Water Layer) From Receiving Shadows Shadows , unreal-engine , Water	8	376	July 14, 2026
Create a rectangular boundary for Rect Light question , unreal-engine	0	11	July 14, 2026
How do I remove TAA jitter in global shader? question , Shaders , Anti-Aliasing , unreal-engine , shader , Global-Shaders	2	138	July 13, 2026
Nanite making my meshes super low poly and causing shading issues Nanite , unreal-engine	5	4166	July 13, 2026
Weird noise in my Render "Shadow" question , unreal-engine	4	106	July 13, 2026
Depth map Broken Movie render queue question , Rendering , please-help-me , unreal-engine , depth , compositing	1	34	July 13, 2026
Noticeable differences in path-traced hair strand look on the exact same UE 5.8 project depending on the GPU (RTX 4090 vs. 50 Series) question , unreal-engine	1	59	July 13, 2026
SceneCapture2D causes random frame spikes even with a 64x64 Render Target question , unreal-engine , render-target , fps-drop	0	16	July 13, 2026
Epic's GPUlightmass unreal-engine	939	81543	July 13, 2026
Substrate - Feedback Thread Rendering , unreal-engine , Physically-Based-Shading , Staff-Pick-UE , Substrate	811	49673	July 13, 2026
Anything Behind Glass Material Draw Distance Is Reduced? question , Rendering , translucent , unreal-engine , glass	1	53	July 13, 2026
Hair changes to black when changing the view question , unreal-engine	2	84	July 12, 2026
Submarine Translucent Material VS. Exponential height fog and Volumetric Fog question , unreal-engine	3	97	July 12, 2026
Lumen surface cache atlas oversubscribed in UE 5.8 question , unreal-engine	3	152	July 12, 2026
Very high ShadowDepths cost with CSM despite aggressive shadow optimization (UE 5.5.4) Blueprint , question , Optimization , unreal-engine	1	61	July 12, 2026
Twisted tunnel material Post-Processing , Rendering , unreal-engine , UE5-0	24	2699	July 11, 2026
NVIDIA DLSS Plugin 4.5 for UE 5.8 cannot load NGXVulkanRHIPreInit.dll (0xc0000092) bug-report , Plugins , nvidia , unreal-engine , crash-on-launch , crash-at-startup	2	113	July 10, 2026
Niagara 3D Grid Gas - make white like steam question , unreal-engine	5	428	July 10, 2026
[UE5] Anime/Toon/Cel Shading Model (WORKS WITH LAUNCHER ENGINE VERSIONS) Lighting , Rendering , unreal-engine , UE5-0	183	67848	July 10, 2026
UE5.7 Refraction Screen Tearing refraction , unreal-engine , Water	3	81	July 10, 2026
How to Use Texture Group Details With Scalability and Platform Settings question , unreal-engine , Epic-Pro-Support	7	446	July 9, 2026
Artifacts in my render but not in viewport question , unreal-engine	4	118	July 8, 2026
ShadowDepths takes 6-10 ms even with almost all shadow settings disabled (UE 5.5) Blueprint , question , unreal-engine	0	51	July 8, 2026

Lumen GI and Reflections feedback thread

Lumen , unreal-engine , Staff-Pick-UE

Hi everyone, I’m starting this thread for feedback and discussion about Lumen GI and Reflections in UE5. We’re under a lot of pressure with internal deadlines so can’t promise responses, but we will read everything here…