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…	2356	144839	March 26, 2026
RAD Game Tools’ Oodle—cross-platform data compression solutions unreal-engine	29	15465	November 17, 2021
Official DDGI (RTXGI) Plugin Integration Support? (or suggested plug-in/workflow) question , unreal-engine , Epic-Pro-Support	5	228	March 26, 2026
Video memory has been exhausted unreal-engine , UE5-0	115	178129	March 25, 2026
Wierd stripes everywhere in 5.7 question , unreal-engine	1	37	March 25, 2026
Twinmotion freeze when turning on path tracing question , bug-report , Path-Tracer , twinmotion	0	7	March 25, 2026
Black halo around white unlit material Shaders , Graphics , unreal-engine , emissive , unlit	3	151	March 25, 2026
Light shafts mesh don't work over water question , unreal-engine	2	20	March 25, 2026
DLSS UE4.27.2 PACKAGE PROBLEM! question , bug-report , nvidia , unreal-engine , Packaging-Error	1	21	March 25, 2026
Is it possible to view Lit + Wireframe at the same time in Unreal Engine? question , unreal-engine	1	17	March 25, 2026
Help Needed - Substrate Glass Appearing differently between Preview and Scene question , unreal-engine , glass , Substrate	2	56	March 25, 2026
Bug in VR Since 5.6 (and 5.7 preview) with Instanced Stereo + Baked Reflection Capture + Deferred Rendering + Post Process Volume unreal-engine	15	629	March 25, 2026
5.7.x - Substrate - Movie Render Queue - Shader Compile Fails every frame - Stutter question , bug-report , unreal-engine	2	33	March 25, 2026
The character's face shows noisy shadows and strange light patterns(lines) in dark place. question , unreal-engine	0	9	March 25, 2026
UE 5.5 - Heavy ghosting offset of my moving object Lumen , question , Rendering , unreal-engine	4	1562	March 25, 2026
After changing RHI to vulkan, this happen unreal-engine	5	66	March 25, 2026
Movie Render Queue vs Viewport unreal-engine	1	13	March 24, 2026
Why does my image look like it’s been infected with a virus when I switch to Lumen Scene mode instead of Lit mode? question , unreal-engine	1	25	March 24, 2026
Imported font vertical alignment issues question , slate , import , unreal-engine , font , UMG	7	2249	March 24, 2026
Where does Nanite decide it needs to batch draw calls? question , unreal-engine	2	22	March 24, 2026
Epic's GPUlightmass unreal-engine	878	72198	March 24, 2026
Precomputed Visibility simply not working question , unreal-engine , Epic-Pro-Support	6	28	March 24, 2026
[5.5.3] Lumen Bounce Light in SceneCaptureComponent2D Lumen , question , Global-Illumination , unreal-engine , scenecapturecomponen	3	27	March 24, 2026
Path Trace DOF pass bug question , unreal-engine , Render-Passes	1	35	March 24, 2026
Conditionally Disable Tone Mapping Using Custom Stencil question , unreal-engine , Epic-Pro-Support	2	90	March 24, 2026
Scene looks different in Android/Quest preview vs Desktop (emissive color and lighting issue) question , unreal-engine	2	18	March 24, 2026
Problem with spawning grass in UE5 out of control question , unreal-engine	1	16	March 24, 2026
Why does the sphere rendered by my shader code on the model appear distorted (not a perfect circle), especially at the edges/corners of the model? question , unreal-engine , shader	2	29	March 24, 2026
5.7 Landscape paint layer blend issue question , unreal-engine	13	914	March 23, 2026
Lumen tracing reflection rays on Unlit materials question , unreal-engine	2	33	March 23, 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…