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…	2381	156873	June 26, 2026
RAD Game Tools’ Oodle—cross-platform data compression solutions unreal-engine	29	15805	November 17, 2021
Epic's GPUlightmass unreal-engine	934	81012	July 9, 2026
UE5.7 Refraction Screen Tearing refraction , unreal-engine , Water	0	9	July 9, 2026
Lumen surface cache atlas oversubscribed in UE 5.8 question , unreal-engine	2	71	July 8, 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	1	48	July 8, 2026
Weird noise in my Render "Shadow" question , unreal-engine	3	60	July 8, 2026
Artifacts in my render but not in viewport question , unreal-engine	4	75	July 8, 2026
ShadowDepths takes 6-10 ms even with almost all shadow settings disabled (UE 5.5) Blueprint , question , unreal-engine	0	21	July 8, 2026
UE5 Heterogeneous Volume: Low-density Houdini VDB smoke becomes dotted / pixelated question , unreal-engine	0	11	July 8, 2026
树木在拉远后变亮、阴影消失 question , unreal-engine	0	7	July 8, 2026
How to prevent lights occluded from view stopping their lighting question , unreal-engine	0	23	July 8, 2026
Hair changes to black when changing the view question , unreal-engine	1	31	July 7, 2026
How to fix specularity or roughness Issues in 5.8? question , unreal-engine	1	37	July 7, 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	0	23	July 7, 2026
Luoshuang's GPULightmass unreal-engine	2502	866747	July 7, 2026
how to adjust defocused background seen through the glass objects in unreal 5.8? question , unreal-engine	1	44	July 6, 2026
Vertex painting in combination with World Aligned Texture node? question , Materials , unreal-engine	4	1551	July 6, 2026
substrate materials wont let me bake gi question , unreal-engine	17	380	July 5, 2026
Lumen no longer working in UE5.5 DX11 SM5 Lumen , dx11 , unreal-engine	28	3909	July 5, 2026
Material refraction not working question , Materials , unreal-engine	18	6884	July 5, 2026
UE 5.8 megaplants error, crash unreal-engine	4	165	July 5, 2026
How can I speed up package for quick overview unreal-engine	4	4520	July 4, 2026
Upgrade Issue question , unreal-engine	1	94	July 4, 2026
Source Build Toon Engine(UntoonEngine) 卡通渲染引擎 editor , CPP , unreal-engine	0	24	July 3, 2026
Error distance field generated when using two-sided material question , unreal-engine , Epic-Pro-Support	8	185	July 3, 2026
Removing a color from a material / texture or making it Transparent unreal-engine	31	32607	July 2, 2026
NodeAndClusterCull GPU crash due to TDR in packaged game question , unreal-engine , Epic-Pro-Support	9	358	July 1, 2026
Weird blue artifact on foliage question , unreal-engine	2	67	June 30, 2026
GTX 1660 super twinmotion path trace question , twinmotion	0	35	June 30, 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…