# Rendering **URL:** https://forums.unrealengine.com/c/development-discussion/rendering/36.md?page=69 [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) **Page:** 70 --- ## [how to fix inconsistency lights and colors between pathtracer viewport and render ](https://forums.unrealengine.com/t/how-to-fix-inconsistency-lights-and-colors-between-pathtracer-viewport-and-render/2677912)
**Author:** [@hydrooise](https://forums.unrealengine.com/u/hydrooise)\ **Replies:** 0\ **Last updated:** [November 23, 2025, 10:02pm UTC](https://forums.unrealengine.com/t/how-to-fix-inconsistency-lights-and-colors-between-pathtracer-viewport-and-render/2677912 "2025-11-23T22:02:30Z")
hello, i found myself stuck in incosistent lighting and colors, as tou can see from the images the viewport has brighter highlights than the exr render. for more info: i have a post process with manual exposure settings… --- ## [PostProcess Dynamically Scale Texture to fit screen](https://forums.unrealengine.com/t/postprocess-dynamically-scale-texture-to-fit-screen/387245)
**Author:** [@anonymous\_user\_08787d181](https://forums.unrealengine.com/u/anonymous_user_08787d181)\ **Replies:** 2\ **Last updated:** [November 23, 2025, 2:20pm UTC](https://forums.unrealengine.com/t/postprocess-dynamically-scale-texture-to-fit-screen/387245 "2025-11-23T14:20:15Z")
I am trying to create a PostProcess Blendable Texture that has a Texture object that blends with the scene. Pretty simple. Below is my Material that usese SceneTexture and blends using a blendfactor before adding the tw… --- ## [Lighting changes as the camera moves](https://forums.unrealengine.com/t/lighting-changes-as-the-camera-moves/2677784)
**Author:** [@Yaboiidaequan](https://forums.unrealengine.com/u/Yaboiidaequan)\ **Replies:** 0\ **Last updated:** [November 23, 2025, 2:06pm UTC](https://forums.unrealengine.com/t/lighting-changes-as-the-camera-moves/2677784 "2025-11-23T14:06:55Z")
Hey guys, when I move my camera the lighting changes (im mostly losing the shadows). Does anyone know how to fix this? --- ## [Nanite Geometry Collections don't cast shadow in Hardware Ray Tracing](https://forums.unrealengine.com/t/nanite-geometry-collections-dont-cast-shadow-in-hardware-ray-tracing/1845680)
**Author:** [@Danta1ion](https://forums.unrealengine.com/u/Danta1ion)\ **Replies:** 4\ **Last updated:** [November 23, 2025, 1:46pm UTC](https://forums.unrealengine.com/t/nanite-geometry-collections-dont-cast-shadow-in-hardware-ray-tracing/1845680 "2025-11-23T13:46:28Z")
As described in the above image, when I enabled both hardware ray-traced shadow and nanite geometry collection, the shadow disappeared. The nanite geometry only accepts direct lighting from sunlight and point light, w… --- ## [Material Lerps Disappear with Fog](https://forums.unrealengine.com/t/material-lerps-disappear-with-fog/2676712)
**Author:** [@CorsairOfLight](https://forums.unrealengine.com/u/CorsairOfLight)\ **Replies:** 14\ **Last updated:** [November 23, 2025, 7:34am UTC](https://forums.unrealengine.com/t/material-lerps-disappear-with-fog/2676712 "2025-11-23T07:34:51Z")
Hi there, So, I am struggling with a material that uses LERPs to assign sections of texture to a material. The material looks great and works okay in the world normally, but as soon as I put an exponential height fog a… --- ## [UE4 4.27.2 Build LIghting Crash](https://forums.unrealengine.com/t/ue4-4-27-2-build-lighting-crash/558939)
**Author:** [@ThunderWInteractive](https://forums.unrealengine.com/u/ThunderWInteractive)\ **Replies:** 10\ **Last updated:** [November 23, 2025, 12:24am UTC](https://forums.unrealengine.com/t/ue4-4-27-2-build-lighting-crash/558939 "2025-11-23T00:24:17Z")
I have an issue building my lighting, here is my log if anyone is able to help 10:07:11 PM: Starting up SwarmAgent … 10:07:11 PM: … registering SwarmAgent with remoting service 10:07:11 PM: … registering SwarmAgent … --- ## [Switch Material Values on Path Traced](https://forums.unrealengine.com/t/switch-material-values-on-path-traced/2677565)
**Author:** [@eco\_bach2](https://forums.unrealengine.com/u/eco_bach2)\ **Replies:** 1\ **Last updated:** [November 22, 2025, 7:16pm UTC](https://forums.unrealengine.com/t/switch-material-values-on-path-traced/2677565 "2025-11-22T19:16:55Z")
Is there an easy way to switch between 2 different emissive values in the material when switching to Path Tracing? --- ## [Weird Artifacts Suddenly On Every Project](https://forums.unrealengine.com/t/weird-artifacts-suddenly-on-every-project/2677584)
**Author:** [@BlueChesFri39](https://forums.unrealengine.com/u/BlueChesFri39)\ **Replies:** 1\ **Last updated:** [November 22, 2025, 6:07pm UTC](https://forums.unrealengine.com/t/weird-artifacts-suddenly-on-every-project/2677584 "2025-11-22T18:07:39Z")
Can someone tell me what is going on? When playing in the editor window all of my UE5 and UE4 projects have suddenly started showing visual artifacts. If you stand still long enough and don’t move the camera it goes back… --- ## [VAT Glitch in Game View](https://forums.unrealengine.com/t/vat-glitch-in-game-view/2677576)
**Author:** [@Kh4skK3y](https://forums.unrealengine.com/u/Kh4skK3y)\ **Replies:** 0\ **Last updated:** [November 22, 2025, 4:34pm UTC](https://forums.unrealengine.com/t/vat-glitch-in-game-view/2677576 "2025-11-22T16:34:22Z")
I have my Vat working perfectly fine in viewport view, but when I am playing the game or in game view, it is starting to glitch. What could be the cause and fix for this good sir? --- ## [How do I remove these reflections/blooms](https://forums.unrealengine.com/t/how-do-i-remove-these-reflections-blooms/2677069)
**Author:** [@Delta1](https://forums.unrealengine.com/u/Delta1)\ **Replies:** 5\ **Last updated:** [November 22, 2025, 3:26pm UTC](https://forums.unrealengine.com/t/how-do-i-remove-these-reflections-blooms/2677069 "2025-11-22T15:26:19Z")
Hi there, How do I remove these reflections on the wall it appears to be reflecting from the white area in the pink floor? Roughness for both materials on wall and floor is set to 1.0 yet the wall is still taking on… --- ## [Normal map for 2D footage in unreal](https://forums.unrealengine.com/t/normal-map-for-2d-footage-in-unreal/2677508)
**Author:** [@bewbdude083](https://forums.unrealengine.com/u/bewbdude083)\ **Replies:** 0\ **Last updated:** [November 22, 2025, 1:16pm UTC](https://forums.unrealengine.com/t/normal-map-for-2d-footage-in-unreal/2677508 "2025-11-22T13:16:25Z")
Hello I’m wondering if anyone can supply a node tree or knows how to apply a normal map to 2D footage in unreal engine so I can get some 3D shadows on my subject ? Thank you ! I have no idea what category to put this und… --- ## [Fix GPU Crash in SetupLogLuminanceCS Post process ](https://forums.unrealengine.com/t/fix-gpu-crash-in-setuplogluminancecs-post-process/2686721)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 2\ **Last updated:** [November 22, 2025, 12:27am UTC](https://forums.unrealengine.com/t/fix-gpu-crash-in-setuplogluminancecs-post-process/2686721 "2025-11-22T00:27:26Z")
Hello Epic Support Team! I want to share the details about GPU crash that I found by inspecting code related to breadcrumbs tag LocalExposure - Blurred Luminance, which was collected in many crashes, but with no shader … --- ## [Imported model as artifacts](https://forums.unrealengine.com/t/imported-model-as-artifacts/2677317)
**Author:** [@Yaboiidaequan](https://forums.unrealengine.com/u/Yaboiidaequan)\ **Replies:** 5\ **Last updated:** [November 21, 2025, 10:36pm UTC](https://forums.unrealengine.com/t/imported-model-as-artifacts/2677317 "2025-11-21T22:36:01Z")
Hey guys I imported a character model and the fact has some weird artifacting on it. It is being caused by the lights but Ive tried switching the lights to stationary, moveable, etc. but the artifacts stay the same. Does… --- ## [Volumetric Fog ignores Inscattering Color Cubemap. (Would also be nice to have working with Sky Atmosphere) ](https://forums.unrealengine.com/t/volumetric-fog-ignores-inscattering-color-cubemap-would-also-be-nice-to-have-working-with-sky-atmosphere/2686695)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 6\ **Last updated:** [November 21, 2025, 10:19pm UTC](https://forums.unrealengine.com/t/volumetric-fog-ignores-inscattering-color-cubemap-would-also-be-nice-to-have-working-with-sky-atmosphere/2686695 "2025-11-21T22:19:15Z")
To align volumetric and non-volumetric fog color, we are hoping there is an easy way to allow volumetric fog to still reference the Inscattering Color Cubemap Texture — when Volumetric Fog is enabled on the ExponentialHe… --- ## [Shaders are not compiling on packaged build.](https://forums.unrealengine.com/t/shaders-are-not-compiling-on-packaged-build/2666569)
**Author:** [@nande](https://forums.unrealengine.com/u/nande)\ **Replies:** 6\ **Last updated:** [November 21, 2025, 9:04pm UTC](https://forums.unrealengine.com/t/shaders-are-not-compiling-on-packaged-build/2666569 "2025-11-21T21:04:22Z")
Hello nice people, I need help. this was working before now it’s not. so i’m sure it’s something i’ve changed or my environment. i’m using 5.6.1. when i’m packaging, the shaders do compile during cooking. when i run… --- ## [Lumen not working on FoliageTypes if Evaluate WPO is ticked in 5.7](https://forums.unrealengine.com/t/lumen-not-working-on-foliagetypes-if-evaluate-wpo-is-ticked-in-5-7/2677293)
**Author:** [@TheRealBiomes](https://forums.unrealengine.com/u/TheRealBiomes)\ **Replies:** 1\ **Last updated:** [November 21, 2025, 5:11pm UTC](https://forums.unrealengine.com/t/lumen-not-working-on-foliagetypes-if-evaluate-wpo-is-ticked-in-5-7/2677293 "2025-11-21T17:11:40Z")
As the title says, it looks like FoliageTypes with Evaluate WPO enabled gets completely ignored by Lumen in 5.7. I can only hope this is a bug that gets fixed sooner than later. We all know PCG is the focus of Epic, but… --- ## [Why are there these reflections? I have a GTX 1080 Ti and I'm using Lumen.](https://forums.unrealengine.com/t/why-are-there-these-reflections-i-have-a-gtx-1080-ti-and-im-using-lumen/2654300)
**Author:** [@santgraphic](https://forums.unrealengine.com/u/santgraphic)\ **Replies:** 10\ **Last updated:** [November 21, 2025, 3:55pm UTC](https://forums.unrealengine.com/t/why-are-there-these-reflections-i-have-a-gtx-1080-ti-and-im-using-lumen/2654300 "2025-11-21T15:55:18Z")
hgf GTX 1080Ti Lumen --- ## [Textures not attached to FBX import](https://forums.unrealengine.com/t/textures-not-attached-to-fbx-import/2672060)
**Author:** [@Sidossa](https://forums.unrealengine.com/u/Sidossa)\ **Replies:** 1\ **Last updated:** [November 21, 2025, 3:49pm UTC](https://forums.unrealengine.com/t/textures-not-attached-to-fbx-import/2672060 "2025-11-21T15:49:45Z")
FBX file from CG trader (many liquor bottles with textures) imported into Twinmotion have no textures on them. How can I assign all the labels to them? Thank you --- ## [Assigning material property to primitive object ](https://forums.unrealengine.com/t/assigning-material-property-to-primitive-object/2672389)
**Author:** [@Posterity20](https://forums.unrealengine.com/u/Posterity20)\ **Replies:** 1\ **Last updated:** [November 21, 2025, 3:47pm UTC](https://forums.unrealengine.com/t/assigning-material-property-to-primitive-object/2672389 "2025-11-21T15:47:48Z")
So I have been trying to create a curved walkway geometry in TM using its populate→place→spacing feature and I successfully added a primitive object to the spline. The problem I am facing is with assigning materials. Fo… --- ## [issue with export to Twinmotion Cloud](https://forums.unrealengine.com/t/issue-with-export-to-twinmotion-cloud/2544611)
**Author:** [@StndupConception](https://forums.unrealengine.com/u/StndupConception)\ **Replies:** 2\ **Last updated:** [November 21, 2025, 2:55pm UTC](https://forums.unrealengine.com/t/issue-with-export-to-twinmotion-cloud/2544611 "2025-11-21T14:55:49Z")
Hi everyone, I’m encountering what seems to be a serious bug with Twinmotion Cloud export in version 2025.1. Even when starting from the default scene (literally a blank project with the default sphere, no assets or… --- ## [Reflected / Indirect light on Metahuman Hair Groom is too strong](https://forums.unrealengine.com/t/reflected-indirect-light-on-metahuman-hair-groom-is-too-strong/2533751)
**Author:** [@TauFrost](https://forums.unrealengine.com/u/TauFrost)\ **Replies:** 7\ **Last updated:** [November 21, 2025, 2:42pm UTC](https://forums.unrealengine.com/t/reflected-indirect-light-on-metahuman-hair-groom-is-too-strong/2533751 "2025-11-21T14:42:10Z")
I start by saying that i’m not even sure if this is a problem but it seems to me and my colleague, that when the metahuman hair is illuminated by light that is reflected from a surface (indirect light), the color of the … --- ## [Materials not rendering with raytracing ](https://forums.unrealengine.com/t/materials-not-rendering-with-raytracing/2676936)
**Author:** [@JGMEndezEDP](https://forums.unrealengine.com/u/JGMEndezEDP)\ **Replies:** 1\ **Last updated:** [November 21, 2025, 2:09pm UTC](https://forums.unrealengine.com/t/materials-not-rendering-with-raytracing/2676936 "2025-11-21T14:09:29Z")
I am rendering a model in twinmotion and for some reason when i turn on render mode (ray tracing) my grass and pavement materials just appear as white. i am not using 3d grass, just the grass material, and two-sided geom… --- ## [Unreal 5.6 - Heterogenous Volumes indirect lighting setting doesn't work anymore](https://forums.unrealengine.com/t/unreal-5-6-heterogenous-volumes-indirect-lighting-setting-doesnt-work-anymore/2587952)
**Author:** [@Urig](https://forums.unrealengine.com/u/Urig)\ **Replies:** 5\ **Last updated:** [November 21, 2025, 1:12pm UTC](https://forums.unrealengine.com/t/unreal-5-6-heterogenous-volumes-indirect-lighting-setting-doesnt-work-anymore/2587952 "2025-11-21T13:12:29Z")
Hi, all I opened a 5.4 project in 5.6 (opening a copy), and these settings made no difference. The shadows in my VDB clouds remain dark. r.HeterogeneousVolumes.MaxTraceDistance 50000 r.HeterogeneousVolumes.IndirectLig… --- ## [Any reason why r.GPUCrashOnOutOfMemory is 0 by default? Safe to enable in DX11? ](https://forums.unrealengine.com/t/any-reason-why-r-gpucrashonoutofmemory-is-0-by-default-safe-to-enable-in-dx11/2686718)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 1\ **Last updated:** [November 21, 2025, 10:30am UTC](https://forums.unrealengine.com/t/any-reason-why-r-gpucrashonoutofmemory-is-0-by-default-safe-to-enable-in-dx11/2686718 "2025-11-21T10:30:54Z")
Hi all, quick question. I see r.GPUCrashOnOutOfMemory is 0 by default. Our game uses direct x 11 on PC. Is there any reason I should not set r.GPUCrashOnOutOfMemory to 1 ? My intentions are so that GPU OOM crashes wo… --- ## [Why are my renders are coming out black? Sometimes seeing frames, sometimes not.](https://forums.unrealengine.com/t/why-are-my-renders-are-coming-out-black-sometimes-seeing-frames-sometimes-not/2473566)
**Author:** [@mrquinnd1](https://forums.unrealengine.com/u/mrquinnd1)\ **Replies:** 6\ **Last updated:** [November 21, 2025, 1:58am UTC](https://forums.unrealengine.com/t/why-are-my-renders-are-coming-out-black-sometimes-seeing-frames-sometimes-not/2473566 "2025-11-21T01:58:34Z")
Hi, if anyone could help it would be greatly appreciated as I am really stuck now. My renders in my sequence are all coming out black, not all the time but almost inconsistently they will come on and go away back to blac… --- ## [这个问题怎么解决啊？我关闭了所有特效、插件、图层进行渲染，还是会提示错误 ](https://forums.unrealengine.com/t/topic/2677118)
**Author:** [@STO\_ShEnTonG](https://forums.unrealengine.com/u/STO_ShEnTonG)\ **Replies:** 0\ **Last updated:** [November 21, 2025, 1:36am UTC](https://forums.unrealengine.com/t/topic/2677118 "2025-11-21T01:36:42Z")
--- ## [Hey guys my editor glitches, flickers and freezes when i open a second window do you know why it happens? ](https://forums.unrealengine.com/t/hey-guys-my-editor-glitches-flickers-and-freezes-when-i-open-a-second-window-do-you-know-why-it-happens/2677076)
**Author:** [@Misokcc](https://forums.unrealengine.com/u/Misokcc)\ **Replies:** 1\ **Last updated:** [November 20, 2025, 10:00pm UTC](https://forums.unrealengine.com/t/hey-guys-my-editor-glitches-flickers-and-freezes-when-i-open-a-second-window-do-you-know-why-it-happens/2677076 "2025-11-20T22:00:18Z")
Hey guys my editor glitches, flickers and freezes when i open a second window do you know why it happens? I have the rtx 4080 I use UE 5.7 with dx11 Ive tried 5.5 and 5.6 too but same issue And have the newest driver … --- ## [Miscalculation of light in lumen. Part of the shadow side is illuminated](https://forums.unrealengine.com/t/miscalculation-of-light-in-lumen-part-of-the-shadow-side-is-illuminated/2677059)
**Author:** [@Slumsnake](https://forums.unrealengine.com/u/Slumsnake)\ **Replies:** 4\ **Last updated:** [November 20, 2025, 9:47pm UTC](https://forums.unrealengine.com/t/miscalculation-of-light-in-lumen-part-of-the-shadow-side-is-illuminated/2677059 "2025-11-20T21:47:10Z")
I wanted to replicate Rembrandt’s portrait lighting (a shortened version of it). However, I ran into a strange problem. No matter what I do, my meta-human’s ear remains illuminated, even though the light shouldn’t fall o… --- ## [Using a structured buffer peculiarity](https://forums.unrealengine.com/t/using-a-structured-buffer-peculiarity/1309510)
**Author:** [@tangorn32](https://forums.unrealengine.com/u/tangorn32)\ **Replies:** 1\ **Last updated:** [November 20, 2025, 8:27pm UTC](https://forums.unrealengine.com/t/using-a-structured-buffer-peculiarity/1309510 "2025-11-20T20:27:32Z")
I was fooling around with ray tracing and created two shaders. First is raygen, basically does the tracing and writes the payload into a structured buffer. Second is a compute shader, it takes this structured buffer as i… --- ## [Problem with Rendering & Setting on Landscape ](https://forums.unrealengine.com/t/problem-with-rendering-setting-on-landscape/2676928)
**Author:** [@TO\_P](https://forums.unrealengine.com/u/TO_P)\ **Replies:** 1\ **Last updated:** [November 20, 2025, 6:45pm UTC](https://forums.unrealengine.com/t/problem-with-rendering-setting-on-landscape/2676928 "2025-11-20T18:45:55Z")
Could somebody help me with this bumpy rendering road? I have no idea what I did wrong with my setting. Are the Rams too low for working? [Previous page](https://forums.unrealengine.com/c/development-discussion/rendering/36.md?page=68) [Next page](https://forums.unrealengine.com/c/development-discussion/rendering/36.md?page=70)