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	163853	July 25, 2026
RAD Game Tools’ Oodle—cross-platform data compression solutions unreal-engine	29	16125	November 17, 2021
Epic's GPUlightmass unreal-engine	993	86421	September 16, 2026
Discussion of GPU crash in VirtualShadowMapPageOverlap.ush question , unreal-engine , Epic-Pro-Support	3	80	September 16, 2026
Lumen surface cache atlas oversubscribed in UE 5.8 question , unreal-engine	5	534	September 15, 2026
Directional light visible in a tunnel question , unreal-engine	6	69	September 15, 2026
Light banding in UE 5.7 question , unreal-engine	9	176	September 15, 2026
Why is my completely enclosed static-mesh room light inside? question , unreal-engine	0	23	September 15, 2026
How can I fix Unreal's visual blurriness and make it sharp like unity question , Rendering , Anti-Aliasing , visual , unreal-engine , blurry	2	77	September 15, 2026
Light Leaking question , unreal-engine	0	36	September 14, 2026
How do i make a Compression Artifact post-process like Imperfecter? Post-Processing , unreal-engine	4	147	September 14, 2026
UE5 Render Target looks weird question , unreal-engine	3	96	September 14, 2026
Linux (Vulkan / RADV): Viewport flickering, black missing meshes & "outdated swapchain" spam (RX 6600) Linux , question , editor , Rendering , issue , unreal-engine , vulkan	0	28	September 14, 2026
nDisplay for Mac OS question , Rendering , unreal-engine	3	508	September 14, 2026
UInstancedStaticMeshComponent::AddInstances does not appear to be adding per-instance previous transforms when enabled question , unreal-engine , Epic-Pro-Support	4	111	September 14, 2026
Fixed: per-instance motion vectors on UInstancedStaticMeshComponent (TAA/TSR ghosting) bug-report , Instanced-Mesh , unreal-engine	0	24	September 14, 2026
Serious Lighting Issues unreal-engine	0	57	September 13, 2026
Unreal SunSky BP flickers due to math error Blueprint , question , sun , unreal-engine , Sky	4	1032	September 12, 2026
Substrate - Feedback Thread Rendering , unreal-engine , Physically-Based-Shading , Staff-Pick-UE , Substrate	817	52940	September 12, 2026
MegaLights feedback thread Lighting , Rendering , unreal-engine , MegaLights	338	24093	September 11, 2026
Blueprints in UEFN Blueprint , question , unreal-engine , fortnite , unreal-editor-for-fortnite , fortnite-creative , UEFN , ue-uefn-plugins	4	104	September 11, 2026
[UE5.8] Demystifying LOD Bias vs. Max Texture Size (and LOD colored texture) unreal-engine	0	62	September 11, 2026
Lighting problem question , unreal-engine	2	78	September 10, 2026
Freezing desktop bug-report , twinmotion	0	25	September 10, 2026
Deleted geometry from Google 3D Tiles using the Model Edit tool reappears after saving, closing, and reopening the Twinmotion project. bug-report , twinmotion	0	18	September 10, 2026
Upstreaming GPU Lightmass fork by Yujiang Wang question , unreal-engine , Epic-Pro-Support	2	65	September 9, 2026
How to properly set up a save/load system in UE5? question , unreal-engine	1	267	September 9, 2026
My dynamic material instances for my post-process material are created, but... question , unreal-engine	1	74	September 9, 2026
Help with Niagara VFX and VFX Power Up question , fortnite , unreal-editor-for-fortnite , fortnite-creative	3	101	September 9, 2026
SLW Shading Model on spherical planet issue question , unreal-engine	0	54	September 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…