# Rendering **URL:** https://forums.unrealengine.com/c/development-discussion/rendering/36.md?page=96 [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) **Page:** 97 --- ## [Editor crashes when turning Lumen detailed tracing on while r.DFShadowCompactCulledObjects is off ](https://forums.unrealengine.com/t/editor-crashes-when-turning-lumen-detailed-tracing-on-while-r-dfshadowcompactculledobjects-is-off/2661659)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 4\ **Last updated:** [September 2, 2025, 11:24am UTC](https://forums.unrealengine.com/t/editor-crashes-when-turning-lumen-detailed-tracing-on-while-r-dfshadowcompactculledobjects-is-off/2661659 "2025-09-02T11:24:46Z")
A naive workaround would be adding up the missing permutation COMPACT\_CULLED\_SHADOW\_OBJECTS to the shader struct FLumenSceneDirectLightingTraceDistanceFieldShadowsCS, but this makes the Lumen scene lighting start flicker… --- ## [Make Flat Materials reflective](https://forums.unrealengine.com/t/make-flat-materials-reflective/2652907)
**Author:** [@Bonf16](https://forums.unrealengine.com/u/Bonf16)\ **Replies:** 1\ **Last updated:** [September 2, 2025, 8:32am UTC](https://forums.unrealengine.com/t/make-flat-materials-reflective/2652907 "2025-09-02T08:32:14Z")
So im trying to recreate a map for a game, and during the games development the area went through some changes. You can see that in one of the images the area is more reflective and i know its being done through some set… --- ## [Niagara 3d Fluid not appearing as expected, Mac.](https://forums.unrealengine.com/t/niagara-3d-fluid-not-appearing-as-expected-mac/1311024)
**Author:** [@benfrost3d](https://forums.unrealengine.com/u/benfrost3d)\ **Replies:** 17\ **Last updated:** [September 2, 2025, 8:25am UTC](https://forums.unrealengine.com/t/niagara-3d-fluid-not-appearing-as-expected-mac/1311024 "2025-09-02T08:25:54Z")
Testing niagara 3d fluids, on my mac. The emitter works. but the smoke renders black, and won’t receive any lights? Also I noticed when testing an example of the 3d gas explosion. I don’t see anything at all, even in pr… --- ## [Problem Rendering Ultra Wide Sequence (9990x1080px): Part of the frame is always underexposed](https://forums.unrealengine.com/t/problem-rendering-ultra-wide-sequence-9990x1080px-part-of-the-frame-is-always-underexposed/727504)
**Author:** [@B3Kelenkenlollo](https://forums.unrealengine.com/u/B3Kelenkenlollo)\ **Replies:** 7\ **Last updated:** [September 2, 2025, 8:24am UTC](https://forums.unrealengine.com/t/problem-rendering-ultra-wide-sequence-9990x1080px-part-of-the-frame-is-always-underexposed/727504 "2025-09-02T08:24:07Z")
Hi everybody, I am pretty new to Ue5 but I am trying to render a sequence for a practical installation, the problem is that the resolution of the screen is a crazy wide 9990x1080px. To get this resolution right while sti… --- ## [Wrong UV coordinates in Custom node](https://forums.unrealengine.com/t/wrong-uv-coordinates-in-custom-node/419665)
**Author:** [@SUMFX](https://forums.unrealengine.com/u/SUMFX)\ **Replies:** 15\ **Last updated:** [September 1, 2025, 3:01pm UTC](https://forums.unrealengine.com/t/wrong-uv-coordinates-in-custom-node/419665 "2025-09-01T15:01:19Z")
Hi, I’ve taken screens below in UE4.19P6 but its the same as in 4.18 also. The problem is using this code in Custom node in the material editor return SceneTextureLookup(UV.xy,14,true); doesn’t give the same result a… --- ## [5.6 substrate sss in pathtracing issue ](https://forums.unrealengine.com/t/5-6-substrate-sss-in-pathtracing-issue/2652817)
**Author:** [@zwjdxa](https://forums.unrealengine.com/u/zwjdxa)\ **Replies:** 0\ **Last updated:** [September 1, 2025, 2:54pm UTC](https://forums.unrealengine.com/t/5-6-substrate-sss-in-pathtracing-issue/2652817 "2025-09-01T14:54:37Z")
The sss material in the substrate has encountered problems during path tracking, and all diffusion methods’ sss effects are ineffective, including sssmfp and shading model subsurface profile --- ## [how to apply dlss on linux?](https://forums.unrealengine.com/t/how-to-apply-dlss-on-linux/2652800)
**Author:** [@disperish1](https://forums.unrealengine.com/u/disperish1)\ **Replies:** 0\ **Last updated:** [September 1, 2025, 1:36pm UTC](https://forums.unrealengine.com/t/how-to-apply-dlss-on-linux/2652800 "2025-09-01T13:36:17Z")
I have already use dlss to optifine my windows ue project,but when i package it into a linux package and run it on ubuntu,it seems doesnt work at all. How can i get dlss successfully work on linux? --- ## [Differences in Shadow Rendering Between Windows and Linux ](https://forums.unrealengine.com/t/differences-in-shadow-rendering-between-windows-and-linux/2652798)
**Author:** [@disperish1](https://forums.unrealengine.com/u/disperish1)\ **Replies:** 0\ **Last updated:** [September 1, 2025, 1:32pm UTC](https://forums.unrealengine.com/t/differences-in-shadow-rendering-between-windows-and-linux/2652798 "2025-09-01T13:32:15Z")
I am currently using the UE5.3 engine on Windows as my development tool, aiming to achieve a suitable shadow effect for a metahuman on the wall behind her. Ultimately, I plan to package and deploy it to the Ubuntu system… --- ## [Megascan decals on a spline mesh](https://forums.unrealengine.com/t/megascan-decals-on-a-spline-mesh/617882)
**Author:** [@LeviathanHawke](https://forums.unrealengine.com/u/LeviathanHawke)\ **Replies:** 1\ **Last updated:** [September 1, 2025, 8:35am UTC](https://forums.unrealengine.com/t/megascan-decals-on-a-spline-mesh/617882 "2025-09-01T08:35:07Z")
Hi, I’m working in UE 4.27 and have been trying to get a decal to look right on a spline mesh road. It looks fine on the landscape. I have tried messing with the Mips, I have DecalBuffer checked and been trying random s… --- ## [Why is that? This phenomenon occurs on both computers and mobile phones](https://forums.unrealengine.com/t/why-is-that-this-phenomenon-occurs-on-both-computers-and-mobile-phones/2652668)
**Author:** [@czysoft](https://forums.unrealengine.com/u/czysoft)\ **Replies:** 0\ **Last updated:** [September 1, 2025, 4:48am UTC](https://forums.unrealengine.com/t/why-is-that-this-phenomenon-occurs-on-both-computers-and-mobile-phones/2652668 "2025-09-01T04:48:49Z")
--- ## [Exponential Height Fog with Spot light Pixelated](https://forums.unrealengine.com/t/exponential-height-fog-with-spot-light-pixelated/433184)
**Author:** [@markmze](https://forums.unrealengine.com/u/markmze)\ **Replies:** 18\ **Last updated:** [August 31, 2025, 1:28pm UTC](https://forums.unrealengine.com/t/exponential-height-fog-with-spot-light-pixelated/433184 "2025-08-31T13:28:29Z")
Hi guys, I’m simply trying to do some volumetric light using ExponentialHeightFog and all, and get some pixels at light source. What I really want is some STRONG volumetric shadows and strong light (nearly white at emi… --- ## [UE 5.6 Shipping Game Crash - SwapChain1-\>ResizeBuffers failed](https://forums.unrealengine.com/t/ue-5-6-shipping-game-crash-swapchain1-resizebuffers-failed/2652520)
**Author:** [@DryreL](https://forums.unrealengine.com/u/DryreL)\ **Replies:** 0\ **Last updated:** [August 31, 2025, 8:08am UTC](https://forums.unrealengine.com/t/ue-5-6-shipping-game-crash-swapchain1-resizebuffers-failed/2652520 "2025-08-31T08:08:47Z")
Hi! I’m successfully building my game with the Shipping build. I can launch the game successfully. The level loads. However, whenever I ALT+TAB, I get a SwapChain1-\>ResizeBuffers error and the game crashes. I’ve just st… --- ## [Path Tracer Videos exporting with noise ](https://forums.unrealengine.com/t/path-tracer-videos-exporting-with-noise/2652357)
**Author:** [@nadiagotsi](https://forums.unrealengine.com/u/nadiagotsi)\ **Replies:** 0\ **Last updated:** [August 30, 2025, 2:34pm UTC](https://forums.unrealengine.com/t/path-tracer-videos-exporting-with-noise/2652357 "2025-08-30T14:34:11Z")
I used to export videos with path tracer with previous versions than the last one, even in dark spaces with high render export and 4K resolution and everything was fine. It seems like in the last twinmotion update no mat… --- ## [Is it possible to mask the shadows on a NormalMap ? ](https://forums.unrealengine.com/t/is-it-possible-to-mask-the-shadows-on-a-normalmap/2651539)
**Author:** [@Palourde89](https://forums.unrealengine.com/u/Palourde89)\ **Replies:** 4\ **Last updated:** [August 29, 2025, 7:56pm UTC](https://forums.unrealengine.com/t/is-it-possible-to-mask-the-shadows-on-a-normalmap/2651539 "2025-08-29T19:56:01Z")
I try to get rid of the “shadows” generated by a NormalMap in order to only render the areas of the texture that are directly struck by the light. As a new UE user, i dont know how to achieve this. I thought at first th… --- ## [Textures blurring in UE4, resource size showing as 3kb](https://forums.unrealengine.com/t/textures-blurring-in-ue4-resource-size-showing-as-3kb/50802)
**Author:** [@SE\_JonF](https://forums.unrealengine.com/u/SE_JonF)\ **Replies:** 6\ **Last updated:** [August 29, 2025, 4:28pm UTC](https://forums.unrealengine.com/t/textures-blurring-in-ue4-resource-size-showing-as-3kb/50802 "2025-08-29T16:28:19Z")
I’ve run into an issue today that sort of came out of nowhere. Two of my most recent diffuse textures are permanently blurred in the editor. The resource size is showing as 3kb, when it was much larger than that upon bei… --- ## [Material Particle SubUV Sample does not work with Tex Object ](https://forums.unrealengine.com/t/material-particle-subuv-sample-does-not-work-with-tex-object/2660586)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 4\ **Last updated:** [August 29, 2025, 3:48pm UTC](https://forums.unrealengine.com/t/material-particle-subuv-sample-does-not-work-with-tex-object/2660586 "2025-08-29T15:48:41Z")
The Particle SubUV Sample node uses its own texture object reference instead of the one provided by the texture object node. \[Image Removed\] --- ## [Bug with async texture compilation in editor ](https://forums.unrealengine.com/t/bug-with-async-texture-compilation-in-editor/2661345)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 3\ **Last updated:** [September 1, 2025, 9:50am UTC](https://forums.unrealengine.com/t/bug-with-async-texture-compilation-in-editor/2661345 "2025-09-01T09:50:32Z")
Hi, I just wanted to provide some additional information for a bug that my colleague has reported: \[Textures not loading until \[Content removed\] and https://issues.unrealengine.com/issue/UE-305449 This seems to be caus… --- ## [UE5 Lighting issue - Source Radius & Scattering](https://forums.unrealengine.com/t/ue5-lighting-issue-source-radius-scattering/1839908)
**Author:** [@zelsphere](https://forums.unrealengine.com/u/zelsphere)\ **Replies:** 3\ **Last updated:** [August 29, 2025, 2:18pm UTC](https://forums.unrealengine.com/t/ue5-lighting-issue-source-radius-scattering/1839908 "2025-08-29T14:18:17Z")
Hi All :slight\_smile: I’ve setup just a head mesh with some solid color diffuse, normal and roughness. But I’ve getting some unwanted results while setting up my lighting. I’m trying to get rid of some sharp shadows, … --- ## [Normal Map Issue ](https://forums.unrealengine.com/t/normal-map-issue/2652112)
**Author:** [@Matingdog](https://forums.unrealengine.com/u/Matingdog)\ **Replies:** 1\ **Last updated:** [August 29, 2025, 1:41pm UTC](https://forums.unrealengine.com/t/normal-map-issue/2652112 "2025-08-29T13:41:51Z")
My model looks seamless in Blender, but after exporting to UE5, seams appear once I attach the normal map. Could anyone advise me on how to fix this? Thanks in advance! The issue still persists despite all the troublesh… --- ## [UE5.6 Virtual Texture thumbnail render problem ](https://forums.unrealengine.com/t/ue5-6-virtual-texture-thumbnail-render-problem/2660359)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 3\ **Last updated:** [August 29, 2025, 11:29am UTC](https://forums.unrealengine.com/t/ue5-6-virtual-texture-thumbnail-render-problem/2660359 "2025-08-29T11:29:31Z")
导入图片为VT，在Editor的文件窗口中看缩略图，会自行变样。 可以通过打开VT、关闭VT，观察缩略图的表现来复现。 \
相关问题在此： \[Content removed\] 我们已经合入了修改：https://github.com/EpicGames/UnrealEngine/commit/607c14afdea1fbe682b3f5a97929f82a092a1f99 仍然会有单个VT缩略图显示的问题，详见附件视… --- ## [\[NDisplay\] \[5.6.0\] Issue with Alpha masks in MPCDI based configuration](https://forums.unrealengine.com/t/ndisplay-5-6-0-issue-with-alpha-masks-in-mpcdi-based-configuration/2652053)
**Author:** [@AndrewStringer](https://forums.unrealengine.com/u/AndrewStringer)\ **Replies:** 1\ **Last updated:** [August 29, 2025, 10:39am UTC](https://forums.unrealengine.com/t/ndisplay-5-6-0-issue-with-alpha-masks-in-mpcdi-based-configuration/2652053 "2025-08-29T10:39:15Z")
Hi all, Running into this problem after upgrading from 5.5 to 5.6. My nDisplay configurations (which use the Explicit MPCDI format) no longer blend the edges of the projected images according to my Alpha masks. It seems… --- ## [Window material not working how I want it to ](https://forums.unrealengine.com/t/window-material-not-working-how-i-want-it-to/2650035)
**Author:** [@Zewis14](https://forums.unrealengine.com/u/Zewis14)\ **Replies:** 4\ **Last updated:** [August 29, 2025, 8:23am UTC](https://forums.unrealengine.com/t/window-material-not-working-how-i-want-it-to/2650035 "2025-08-29T08:23:17Z")
So, I’m learning UE5 and want to make a window with water droplets. I’ve used this tutorial to make my material: https://www.youtube.com/watch?v=yl6Vh-hmKjk . My problem is that i have weird reflections on the sides of m… --- ## [User Interface material looks different in Standalone play than in PiE](https://forums.unrealengine.com/t/user-interface-material-looks-different-in-standalone-play-than-in-pie/2651917)
**Author:** [@Player\_003](https://forums.unrealengine.com/u/Player_003)\ **Replies:** 1\ **Last updated:** [August 29, 2025, 7:10am UTC](https://forums.unrealengine.com/t/user-interface-material-looks-different-in-standalone-play-than-in-pie/2651917 "2025-08-29T07:10:32Z")
First is what it looks like in PiE and secund in standalone play. This is material im using. https://blueprintue.com/blueprint/l3417vz\\\_/ Or if you have some better static material that will look better pls tell me. --- ## [flickering and artifacts on models](https://forums.unrealengine.com/t/flickering-and-artifacts-on-models/2651083)
**Author:** [@Zimaell](https://forums.unrealengine.com/u/Zimaell)\ **Replies:** 17\ **Last updated:** [August 29, 2025, 6:39am UTC](https://forums.unrealengine.com/t/flickering-and-artifacts-on-models/2651083 "2025-08-29T06:39:32Z")
flickering and artifacts on models I made a simple model of rails and placed it on the stage, but no matter how I set it up, they constantly flicker. It’s definitely not the material or textures, I tried different ones… --- ## [i got some render issues in ue5.5.4.anyone knows?A black area appears on the right side of the picture](https://forums.unrealengine.com/t/i-got-some-render-issues-in-ue5-5-4-anyone-knows-a-black-area-appears-on-the-right-side-of-the-picture/2652001)
**Author:** [@Dawn\_OvO](https://forums.unrealengine.com/u/Dawn_OvO)\ **Replies:** 0\ **Last updated:** [August 29, 2025, 6:39am UTC](https://forums.unrealengine.com/t/i-got-some-render-issues-in-ue5-5-4-anyone-knows-a-black-area-appears-on-the-right-side-of-the-picture/2652001 "2025-08-29T06:39:02Z")
Like the black area on the right side of the picture, I usually experience this situation when rendering this ultra-wide resolution, but I don’t know the reason for this problem. Does anyone know how to solve it? --- ## [Hiding instances ](https://forums.unrealengine.com/t/hiding-instances/2660348)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 8\ **Last updated:** [August 29, 2025, 12:29am UTC](https://forums.unrealengine.com/t/hiding-instances/2660348 "2025-08-29T00:29:39Z")
Hi, we’d like to be able to hide an instance of an hism. There does not appear to be any option to “setinstancehiddeningame” or “toggleinstancevisibility”. We could use removeinstance, but maintaining that is a royal PI… --- ## [From 5.5.3 to 5.6.1 - Very noticeable flickering and smearing?](https://forums.unrealengine.com/t/from-5-5-3-to-5-6-1-very-noticeable-flickering-and-smearing/2651623)
**Author:** [@LyubomirIko](https://forums.unrealengine.com/u/LyubomirIko)\ **Replies:** 2\ **Last updated:** [August 28, 2025, 6:31am UTC](https://forums.unrealengine.com/t/from-5-5-3-to-5-6-1-very-noticeable-flickering-and-smearing/2651623 "2025-08-28T06:31:02Z")
In 5.6 I am getting discotheque. I try changing every possible Lumen and post process values, but nothing works? Meanwhile the same scene in 5.5 have minimal artifacts. The game is about moving this “ship” in space, so… --- ## [Bindless Resources - UE 5.4](https://forums.unrealengine.com/t/bindless-resources-ue-5-4/1916817)
**Author:** [@Mangoliciouz](https://forums.unrealengine.com/u/Mangoliciouz)\ **Replies:** 5\ **Last updated:** [August 28, 2025, 8:21pm UTC](https://forums.unrealengine.com/t/bindless-resources-ue-5-4/1916817 "2025-08-28T20:21:34Z")
Hi there, We’re running into an issue where our material/shader is surpassing the 64 SRV limit. Am I correct in thinking that Bindless Resources should alleviate this limitation, and it’s been released (albeit in a sem… --- ## [How to make character movement follow camera direction in Unreal Engine 5? ](https://forums.unrealengine.com/t/how-to-make-character-movement-follow-camera-direction-in-unreal-engine-5/2651745)
**Author:** [@auroraxnyunyu](https://forums.unrealengine.com/u/auroraxnyunyu)\ **Replies:** 1\ **Last updated:** [August 28, 2025, 3:27pm UTC](https://forums.unrealengine.com/t/how-to-make-character-movement-follow-camera-direction-in-unreal-engine-5/2651745 "2025-08-28T15:27:28Z")
Hi everyone, I’m working on a third-person character in Unreal Engine 5, and I want the movement input (WASD) to follow the direction of the camera. Right now, when I press forward, the character moves in world directio… --- ## [HI. I have an issue with particular mesh mesh regarding distance field lighting. I understand that i can turn it off. I need to know if there is a workaround. it seems to regard the stool wheel as a solid voluime ](https://forums.unrealengine.com/t/hi-i-have-an-issue-with-particular-mesh-mesh-regarding-distance-field-lighting-i-understand-that-i-can-turn-it-off-i-need-to-know-if-there-is-a-workaround-it-seems-to-regard-the-stool-wheel-as-a-solid-voluime/2651741)
**Author:** [@MCI45](https://forums.unrealengine.com/u/MCI45)\ **Replies:** 0\ **Last updated:** [August 28, 2025, 1:14pm UTC](https://forums.unrealengine.com/t/hi-i-have-an-issue-with-particular-mesh-mesh-regarding-distance-field-lighting-i-understand-that-i-can-turn-it-off-i-need-to-know-if-there-is-a-workaround-it-seems-to-regard-the-stool-wheel-as-a-solid-voluime/2651741 "2025-08-28T13:14:52Z")
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