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…	2339	142200	February 11, 2026
RAD Game Tools’ Oodle—cross-platform data compression solutions unreal-engine	29	15383	November 17, 2021
Megalights issue: glitter/sparkle effect in 5.7.3 on unlit materials and collision edges. Any solution? question , bug-report , unreal-engine	7	31	February 21, 2026
Substrate - Feedback Thread Rendering , unreal-engine , Physically-Based-Shading , Staff-Pick-UE , Substrate	762	41112	February 21, 2026
Performance regression going from 5.6 to 5.7. What is the Distortion GPU Pass? question , unreal-engine	0	14	February 21, 2026
After upgrade from 5.6 to 5.7 Volumetric Light is leaking through Instanced Meshes (HISM). Why?? (GIFs inside) question , unreal-engine , Hierarchical-Instanced-Static-Mesh , volumetric-fog	2	27	February 21, 2026
UE 5.7.x Linux – VK_ERROR_DEVICE_LOST in Vulkan RHI question , unreal-engine	3	97	February 20, 2026
Weird color artifacts question , editor , unreal-engine	1	15	February 20, 2026
Need for instant Lumen scene update question , unreal-engine	1	132	February 20, 2026
is there a way to view which texture mips are currently loaded? (and i might be seeing a severe caching bug too) question , unreal-engine , mipmap , memory-usage	0	8	February 20, 2026
Does Fortnite support deferred shading on mobile? question , Rendering , Forward-Rendering , fortnite , unreal-editor-for-fortnite , UEFN	3	19	February 20, 2026
I have wonky shadows, How do I fix?? (UE4.27) Blueprint , question , unreal-engine	13	50	February 20, 2026
Water body showing in Editor but not in VR Preview question , unreal-engine , Water	0	10	February 20, 2026
Unreal (5.4.4 and 5.6 Preview) Lightmass on Mac stopping at 0% question , Lightmass , apple , building-lighting , unreal-engine , baked-lighting , Macos	11	590	February 20, 2026
privet privet question , unreal-engine	0	10	February 20, 2026
Build LIghting on Mac BROKEN MAC , unreal-engine	0	11	February 20, 2026
RenderTarget whitewashed on Medium+ settings question , unreal-engine , render-target , scenecapture2d , metahuman	0	10	February 20, 2026
Volumetric Shadows issue after certain scale unreal-engine	1	11	February 20, 2026
[SM6] (Node TextureSampleParameter2D) Param2D> Found NULL, requires Texture2D question , editor , Rendering , unreal-engine	1	260	February 20, 2026
Render distance cutting out at small and long distances question , unreal-engine , fortnite , fortnite-creative	0	17	February 19, 2026
Lighting channels also for skylights? unreal-engine	34	10394	February 19, 2026
exact 'first person: world space representation' requirements? question , unreal-engine	5	70	February 19, 2026
Cannot delete empty material from model question , unreal-engine	2	16	February 19, 2026
Ctrl + L does not work UE5 (Unreal Engine 5) question , Lighting , unreal-engine , light , lighting-problem , UE5-0	39	23462	February 19, 2026
nDdisplay rendering exr issue editor , bug-report , unreal-engine	0	13	February 19, 2026
Unreal 5.7 RayTracing Crash question , crash , Rendering , unreal-engine , Ray-Tracing	11	516	February 19, 2026
nDisplay Movie render Queue -- Stretch issue only for one panel (floor display) question , unreal-engine	0	14	February 19, 2026
Black Horizontal Line In Rendering (please help) question , Rendering , unreal-engine	0	19	February 19, 2026
Foliage shadow flicker in render with UE 5.7 unreal-engine	3	28	February 18, 2026
I accidentally made my nanite meshes NOT work with decals...what did I do??? Nanite , question , Decals , unreal-engine , emissive	0	12	February 18, 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…