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	162607	July 25, 2026
RAD Game Tools’ Oodle—cross-platform data compression solutions unreal-engine	29	16085	November 17, 2021
Detail Mode Post Process Volume question , unreal-engine	4	44	September 4, 2026
Light banding in UE 5.7 question , unreal-engine	3	48	September 4, 2026
Rendering Issue on a Macbook M2, keeps crashing question , unreal-engine	20	900	September 4, 2026
Low resolution shadow using Virtual Shadow Maps question , Shadows , unreal-engine	8	8415	September 4, 2026
UE5.7 - Fix: Lumen not working for SM5 DX11 and DX12 Lumen , Shaders , unreal-engine , directx	4	791	September 4, 2026
Intermittent D3D12 UniformBuffer Access Violation Crash in UE 5.5.4 Packaged Builds question , crash , unreal-engine	6	902	September 4, 2026
User Scene Textures don't pass through negative values question , Post-Processing , Rendering , unreal-engine	1	38	September 4, 2026
Can I render a video with transparency in UE? question , unreal-engine , Render , transparency , alpha , video , opacity	7	2572	September 3, 2026
Can I import a video with a alpha channel? unreal-engine	2	1152	September 3, 2026
Can 4.5 Video Textures support alpha channels? question , unreal-engine , alpha , video , channel	19	5525	September 3, 2026
is there a chance that PROres and HAP with alpha could be played in ue4 with directx12 enabled ? UE4-25 , question , unreal-engine , alpha	1	332	September 3, 2026
UE5.8 masked material not rendering alpha correctly on sprites question , unreal-engine	5	137	September 3, 2026
Unreal Engine importing prores 4444 premultiplied alpha COLOR ISSUE unreal-engine	1	118	September 3, 2026
Getting transparency to work on image media Sources question , editor , Lighting , Rendering , unreal-engine , video-texture	1	239	September 3, 2026
UE 5.6: Intermittent D3D12 GPU crashes with Shader Instruction Error, hangs, and page faults across Nanite and Base Pass shaders question , unreal-engine	0	27	September 3, 2026
Playing a Video with a Alpha Channel question , unreal-engine , transparency , video	28	20141	September 3, 2026
Groom asset with reflection problem question , characters , unreal-engine , lighting-problem , reflection	1	22	September 2, 2026
Accumulation using legacy preset question , unreal-engine	3	55	September 2, 2026
Epic's GPUlightmass unreal-engine	988	85723	September 2, 2026
It is possible to randomize textures on a static mesh taking random image from an external folder? question , unreal-engine , randomize-array , texture-channel	13	2740	September 2, 2026
Runtime Imported Textures always "blank" question , unreal-engine	2	249	September 1, 2026
My folliage doesn't render the appropiate shadows Blueprint , question , unreal-engine	1	44	September 1, 2026
How to get scene luminance/illumination at runtime ? question , Shaders , Rendering , unreal-engine , noise	3	1431	September 1, 2026
Is it possible to use anisotropy with forward rendering? (UE5) question , unreal-engine , Forward-Rendering , UE5-0	4	1332	August 31, 2026
Why pixel size output of GetUserInterfaceUV is giving me a gradient instead of a constant? question , unreal-engine	1	44	August 31, 2026
Ray tracing proxy problem for Foliage question , unreal-engine	5	110	August 31, 2026
Frame Generation - Switching between FSR 4 and DLSS 4.5 question , unreal-engine	0	50	August 30, 2026
[UE5.8.1] How to fix Cascade shadows disappearing? question , unreal-engine	1	58	August 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…