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	173670	November 6, 2026
RAD Game Tools’ Oodle—cross-platform data compression solutions unreal-engine	29	16468	November 17, 2021
GameThread timed out waiting for RenderThread after 120.00 seconds question , unreal-engine , Epic-Pro-Support	3	1662	November 9, 2026
Epic's GPUlightmass unreal-engine	1048	92937	November 9, 2026
HISM flickering when any character is visible question , unreal-engine , Epic-Pro-Support	9	164	November 8, 2026
Light bleeding throught walls question , unreal-engine	1	23	November 8, 2026
Lumen indirect light is exactly zero: here is where it works and where it stops question , unreal-engine	3	147	November 6, 2026
Export baked lighting question , unreal-engine	1	48	November 6, 2026
Game hangs on shader creation after Nvidia Driver update to 621.14 bug-report , unreal-engine , compiling-shaders	0	69	November 5, 2026
[Gpu hung] RenderVirtualShadowMaps(Nanite) - NodeAndClusterCull question , unreal-engine , Epic-Pro-Support	10	352	November 5, 2026
MSAA doesn't seem to work properly with local fog volumes - 5.8.4 question , unreal-engine	1	62	November 4, 2026
Extrapolate clamped texture with fixed color question , unreal-engine , clamp	4	1925	November 4, 2026
UE 5.8 is Hierachical Instance meshes not supported for Lumen? question , unreal-engine	6	215	November 3, 2026
Water ripples not centered around the character. question , unreal-engine	2	56	November 3, 2026
Smoke Particle effect changing opacity based on camera position. question , unreal-engine	1	47	November 3, 2026
Horizontal stripes shader not tiling over geometry as expected question , unreal-engine	2	53	November 3, 2026
Virtual Shadow Maps for high quality rendering / cinematics unreal-engine	10	3074	November 3, 2026
Unreal 5.7 MRQ render Motion Vector Pass not working question , unreal-engine	3	44	November 2, 2026
The noise in UE5 is Unreal! translucent , unreal-engine , noise , translucency	2	114	November 2, 2026
Directional light passing through everything question , editor , unreal-engine	1	51	November 1, 2026
Persistent Flickering and Fine Visual Noise in UE 5.7/5.8 – RTX 5060 Ti and RTX 4070 question , unreal-engine	0	84	November 1, 2026
DOF blurs away hair strands (groom) question , Post-Processing , unreal-engine , DOF , UE5-0	10	6273	November 1, 2026
Black Lines question , Rendering , unreal-engine	5	329	October 31, 2026
UE 5.1 Jagged Shadows? question , Rendering , Shadows , unreal-engine	4	1477	October 31, 2026
Is there any way to use Constrain Aspect Ratio and Aspect Ratio Axis Constraint at the same time? Blueprint , question , viewport , unreal-engine	2	255	October 30, 2026
Metahuman hair is pitch black in every situation question , unreal-engine	1	85	October 29, 2026
What's actually the default Normal value in the material graph, when there's no node connected to it? unreal-engine	4	3567	October 28, 2026
Smoke Trail question , unreal-engine	0	26	October 28, 2026
Visible splits in lumen reflections(the rendered frame) when using large screenpercentage Lumen , question , Rendering , unreal-engine	6	184	October 27, 2026
Unreal Engine MediaPlayer materials always start off as black question , unreal-engine	1	64	October 27, 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…