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	164026	July 25, 2026
RAD Game Tools’ Oodle—cross-platform data compression solutions unreal-engine	29	16134	November 17, 2021
Visible splits in lumen reflections(the rendered frame) when using large screenpercentage Lumen , question , Rendering , unreal-engine	2	43	September 18, 2026
Epic's GPUlightmass unreal-engine	998	86558	September 18, 2026
Unable to import VDB volume correctly in Unreal Engine 5.6.1 InsideUnreal , question , unreal-engine	1	83	September 17, 2026
[Feature Request] High resolution screenshot for blueprint and material graphs for sharing / samples and tutorials Blueprint , question , unreal-engine	6	4319	September 17, 2026
UE5 Render Target looks weird question , unreal-engine	5	121	September 16, 2026
Delayed Lumen lighting updates when a character rotates toward a movable light during a Sequencer cinematic question , unreal-engine	0	26	September 16, 2026
What's hapen to drivers vulkan in render unreal 5 unreal-engine , fortnite , unreal-editor-for-fortnite , fortnite-creative , epic-for-indies	0	20	September 16, 2026
Substrate - Feedback Thread Rendering , unreal-engine , Physically-Based-Shading , Staff-Pick-UE , Substrate	819	53073	September 16, 2026
Moving mouse during "Simulate" appears to half/third frame rate. unreal-engine	4	233	September 16, 2026
Discussion of GPU crash in VirtualShadowMapPageOverlap.ush question , unreal-engine , Epic-Pro-Support	3	88	September 16, 2026
Lumen surface cache atlas oversubscribed in UE 5.8 question , unreal-engine	5	566	September 15, 2026
Directional light visible in a tunnel question , unreal-engine	6	105	September 15, 2026
Light banding in UE 5.7 question , unreal-engine	9	189	September 15, 2026
Why is my completely enclosed static-mesh room light inside? question , unreal-engine	0	35	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	82	September 15, 2026
Light Leaking question , unreal-engine	0	39	September 14, 2026
How do i make a Compression Artifact post-process like Imperfecter? Post-Processing , unreal-engine	4	156	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	43	September 14, 2026
nDisplay for Mac OS question , Rendering , unreal-engine	3	512	September 14, 2026
UInstancedStaticMeshComponent::AddInstances does not appear to be adding per-instance previous transforms when enabled question , unreal-engine , Epic-Pro-Support	4	117	September 14, 2026
Fixed: per-instance motion vectors on UInstancedStaticMeshComponent (TAA/TSR ghosting) bug-report , Instanced-Mesh , unreal-engine	0	32	September 14, 2026
Serious Lighting Issues unreal-engine	0	59	September 13, 2026
Unreal SunSky BP flickers due to math error Blueprint , question , sun , unreal-engine , Sky	4	1034	September 12, 2026
MegaLights feedback thread Lighting , Rendering , unreal-engine , MegaLights	338	24142	September 11, 2026
Blueprints in UEFN Blueprint , question , unreal-engine , fortnite , unreal-editor-for-fortnite , fortnite-creative , UEFN , ue-uefn-plugins	4	109	September 11, 2026
[UE5.8] Demystifying LOD Bias vs. Max Texture Size (and LOD colored texture) unreal-engine	0	67	September 11, 2026
Lighting problem question , unreal-engine	2	79	September 10, 2026
Freezing desktop bug-report , twinmotion	0	28	September 10, 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…