# Rendering **URL:** https://forums.unrealengine.com/c/development-discussion/rendering/36.md?page=95 [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) **Page:** 96 --- ## [UnrealInsight 1.06 crashes on traces from 5.5.4 with RDG trace enabled](https://forums.unrealengine.com/t/unrealinsight-1-06-crashes-on-traces-from-5-5-4-with-rdg-trace-enabled/2653764)
**Author:** [@AlexPfaffe](https://forums.unrealengine.com/u/AlexPfaffe)\ **Replies:** 1\ **Last updated:** [September 4, 2025, 11:06pm UTC](https://forums.unrealengine.com/t/unrealinsight-1-06-crashes-on-traces-from-5-5-4-with-rdg-trace-enabled/2653764 "2025-09-04T23:06:05Z")
Assertion failed: IsValid() \[File:C:\\fbroot\\Engine\\Source\\Runtime\\Core\\Public\\Templates\\SharedPointer.h\] \[Line: 1082\] 0x00007ff92bb1955b UnrealInsights-RenderGraphInsights.dll!UE::RenderGraphInsights::FRenderGraphAn… --- ## [Forcing meshes into Lumen when FastCameraMode is on ](https://forums.unrealengine.com/t/forcing-meshes-into-lumen-when-fastcameramode-is-on/2661349)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 3\ **Last updated:** [September 4, 2025, 10:37pm UTC](https://forums.unrealengine.com/t/forcing-meshes-into-lumen-when-fastcameramode-is-on/2661349 "2025-09-04T22:37:56Z")
In our game, there are some interior room levels where we use modular wall pieces, and those meshes are small enough that they get removed from the Lumen scene when viewed from the middle of the room when LumenScene.Fast… --- ## [Invalid parameters GUID ](https://forums.unrealengine.com/t/invalid-parameters-guid/2662218)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 5\ **Last updated:** [September 4, 2025, 10:02pm UTC](https://forums.unrealengine.com/t/invalid-parameters-guid/2662218 "2025-09-04T22:02:26Z")
I noticed that during material instances loading a lot of parameter GUIDs are invalid (0,0,0,0). This may be a problem because the rebinding occurs only if the name and/or the GUID is valid. If the GUID is invalid and … --- ## [FastGeoStreaming with Raytracing ](https://forums.unrealengine.com/t/fastgeostreaming-with-raytracing/2653656)
**Author:** [@tomas.kotal](https://forums.unrealengine.com/u/tomas.kotal)\ **Replies:** 1\ **Last updated:** [September 4, 2025, 8:09pm UTC](https://forums.unrealengine.com/t/fastgeostreaming-with-raytracing/2653656 "2025-09-04T20:09:52Z")
We are experiencing a crash when using the FastGeoStreaming plugin in combination with hardware ray tracing. We have the following (relevant) settings enabled: r.RayTracing=True r.RayTracing.RayTracingProxies.ProjectEn… --- ## [5.3 HDRI Broken?](https://forums.unrealengine.com/t/5-3-hdri-broken/1290002)
**Author:** [@slavexhero](https://forums.unrealengine.com/u/slavexhero)\ **Replies:** 6\ **Last updated:** [September 4, 2025, 6:20pm UTC](https://forums.unrealengine.com/t/5-3-hdri-broken/1290002 "2025-09-04T18:20:37Z")
In unreal 5.3 HDRI backdrops work fine in editor and standalone. But, once packaged, the texture seems to be missing so all I end up with is a box or dome with the missing grey material. I do not see any errors or warnin… --- ## [Continued UE5.3 crashing when building/ rebuilding nanite](https://forums.unrealengine.com/t/continued-ue5-3-crashing-when-building-rebuilding-nanite/1306835)
**Author:** [@trainedkillers11](https://forums.unrealengine.com/u/trainedkillers11)\ **Replies:** 3\ **Last updated:** [September 4, 2025, 4:34pm UTC](https://forums.unrealengine.com/t/continued-ue5-3-crashing-when-building-rebuilding-nanite/1306835 "2025-09-04T16:34:21Z")
Now I’m sure the issue for my crashing is the fact I am trying to add Nanite to my 8km landscape all at the same time but this is rather a time consuming issue. I’ve tried maybe four to five times rebuilding data where m… --- ## [Impostor flickering and not rendering right](https://forums.unrealengine.com/t/impostor-flickering-and-not-rendering-right/2653701)
**Author:** [@CherylCaiiii](https://forums.unrealengine.com/u/CherylCaiiii)\ **Replies:** 0\ **Last updated:** [September 4, 2025, 4:29pm UTC](https://forums.unrealengine.com/t/impostor-flickering-and-not-rendering-right/2653701 "2025-09-04T16:29:09Z")
Hello, I really need some help here. Im a absolute beginner when it comes to plugins and i canot figure out how to get my impostors working, everything i throw into the plugin looks bad. I’ve turn off nanite and using u… --- ## [Unreal Motion Design render problem](https://forums.unrealengine.com/t/unreal-motion-design-render-problem/2653354)
**Author:** [@zpghost](https://forums.unrealengine.com/u/zpghost)\ **Replies:** 2\ **Last updated:** [September 4, 2025, 3:15pm UTC](https://forums.unrealengine.com/t/unreal-motion-design-render-problem/2653354 "2025-09-04T15:15:09Z")
Hello everyone, there is a problem with rendering animation made in motion design, objects that are cloners during animation are doubled on the render, objects that were animated with keys have no problems --- ## [Render Thread Advice ](https://forums.unrealengine.com/t/render-thread-advice/2663208)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 8\ **Last updated:** [September 8, 2025, 9:44pm UTC](https://forums.unrealengine.com/t/render-thread-advice/2663208 "2025-09-08T21:44:43Z")
I’m having a really hard time with our render thread. The GPU and main thread are easily able to give us a lower frame time but the render thread is consistently lagging behind. In insights, a lot of the concepts are mor… --- ## [Scene Capture 2d owner only see not working](https://forums.unrealengine.com/t/scene-capture-2d-owner-only-see-not-working/414580)
**Author:** [@StackedPickles](https://forums.unrealengine.com/u/StackedPickles)\ **Replies:** 13\ **Last updated:** [September 4, 2025, 2:10pm UTC](https://forums.unrealengine.com/t/scene-capture-2d-owner-only-see-not-working/414580 "2025-09-04T14:10:01Z")
I am trying to get a mesh to render only to the scene capture for a project I am working on. When I set the mesh actor owner to my scene capture and set “only owner see” to true the mesh doesnt show up in the scene captu… --- ## [Cracks in static mesh displacement 5.6](https://forums.unrealengine.com/t/cracks-in-static-mesh-displacement-5-6/2653645)
**Author:** [@jdbenson](https://forums.unrealengine.com/u/jdbenson)\ **Replies:** 1\ **Last updated:** [September 4, 2025, 11:48am UTC](https://forums.unrealengine.com/t/cracks-in-static-mesh-displacement-5-6/2653645 "2025-09-04T11:48:51Z")
I want to use a procedural or at least a tileable texture as displacement on a static mesh object. The displacement works, but it’s causing cracks along the UV’s. I can’t find “crack-free displacement” option. I want … --- ## [PrevTanAndInvTanHalfFOV is incorrectly set ](https://forums.unrealengine.com/t/prevtanandinvtanhalffov-is-incorrectly-set/2662224)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 1\ **Last updated:** [September 4, 2025, 11:42am UTC](https://forums.unrealengine.com/t/prevtanandinvtanhalffov-is-incorrectly-set/2662224 "2025-09-04T11:42:23Z")
Hi, In SetupViewRectUniformBufferParameters in “Source\\Runtime\\Engine\\Private\\SceneView.cpp” PrevTanAndInvTanHalfFOV is not set correctly. line 2599: ViewUniformShaderParameters.PrevTanAndInvTanHalfFOV = InPrevViewM… --- ## [Odd shimmering artifact on foliage - any ideas?](https://forums.unrealengine.com/t/odd-shimmering-artifact-on-foliage-any-ideas/2653084)
**Author:** [@Astro-Chris](https://forums.unrealengine.com/u/Astro-Chris)\ **Replies:** 1\ **Last updated:** [September 4, 2025, 4:20am UTC](https://forums.unrealengine.com/t/odd-shimmering-artifact-on-foliage-any-ideas/2653084 "2025-09-04T04:20:07Z")
This is a zoomed in capture of distant foliage meshes. Any idea what causes this strange shimmering light artifact on meshes in the scene. It’s more obvious in the distance but still happens close by. I’ve tinkered … --- ## [PC configuration](https://forums.unrealengine.com/t/pc-configuration/2653071)
**Author:** [@Franck\_Unreal](https://forums.unrealengine.com/u/Franck_Unreal)\ **Replies:** 1\ **Last updated:** [September 4, 2025, 4:18am UTC](https://forums.unrealengine.com/t/pc-configuration/2653071 "2025-09-04T04:18:27Z")
Hello I’m working with a Laptop msi with an intel core i7 and an nvidia Rtx 3050 and also with 32 Go RAM. I did a simple test with a movable sphere and its texture which takes off over a template plane with its rock mat… --- ## [want to convert .tm file ](https://forums.unrealengine.com/t/want-to-convert-tm-file/2653309)
**Author:** [@Hardikbd](https://forums.unrealengine.com/u/Hardikbd)\ **Replies:** 1\ **Last updated:** [September 4, 2025, 2:56am UTC](https://forums.unrealengine.com/t/want-to-convert-tm-file/2653309 "2025-09-04T02:56:58Z")
Hello Community, I am currently working on a mobile application using Flutter + Unity. In my project, I need to display an architectural 3D model, but the file I have is in .tm format (Twinmotion file). Unfortunately, U… --- ## [Strange shadows on foliage.](https://forums.unrealengine.com/t/strange-shadows-on-foliage/2653505)
**Author:** [@itsmemoulder](https://forums.unrealengine.com/u/itsmemoulder)\ **Replies:** 2\ **Last updated:** [September 3, 2025, 11:01pm UTC](https://forums.unrealengine.com/t/strange-shadows-on-foliage/2653505 "2025-09-03T23:01:19Z")
Hello friends, Can anyone point me in the direction to fix this strange shadow behavior on my grass? I am using ultra dynamic sky, lumen and standard shadow maps (not virtual). --- ## [Bug in player collision debug visualization for negatively scaled boxes ](https://forums.unrealengine.com/t/bug-in-player-collision-debug-visualization-for-negatively-scaled-boxes/2661971)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 3\ **Last updated:** [September 3, 2025, 9:11pm UTC](https://forums.unrealengine.com/t/bug-in-player-collision-debug-visualization-for-negatively-scaled-boxes/2661971 "2025-09-03T21:11:14Z")
Hi, The player collision debug visualization for negatively scaled boxes is rendering the back faces, not the front faces: \[Image Removed\] The debug primitives are rendered via the dynamic mesh builder. FDynamicMeshBu… --- ## [5.6.1 fog issues](https://forums.unrealengine.com/t/5-6-1-fog-issues/2653387)
**Author:** [@glitchered](https://forums.unrealengine.com/u/glitchered)\ **Replies:** 0\ **Last updated:** [September 3, 2025, 5:37pm UTC](https://forums.unrealengine.com/t/5-6-1-fog-issues/2653387 "2025-09-03T17:37:26Z")
just found this lil bug. volumetric fog disappears when the camera is located in a shadow area and looking in the light direction. full config. standard expo volumetric fog. mega directional light (not related). t… --- ## [Nanite Landscape disappears ](https://forums.unrealengine.com/t/nanite-landscape-disappears/2665443)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 13\ **Last updated:** [September 15, 2025, 1:19pm UTC](https://forums.unrealengine.com/t/nanite-landscape-disappears/2665443 "2025-09-15T13:19:03Z")
In 5.6 in a non world partition scene, landscapes can have graphical issues: some parts are not rendered. --- ## [Niagara Fluids 2D: Depth Map Collision causing ugly intersections?](https://forums.unrealengine.com/t/niagara-fluids-2d-depth-map-collision-causing-ugly-intersections/2318781)
**Author:** [@Slavq](https://forums.unrealengine.com/u/Slavq)\ **Replies:** 1\ **Last updated:** [September 3, 2025, 3:15pm UTC](https://forums.unrealengine.com/t/niagara-fluids-2d-depth-map-collision-causing-ugly-intersections/2318781 "2025-09-03T15:15:59Z")
Update: It’s not from the plane intersecting the mesh, it’s from Depth Map Collisions! The fluid sim plane doesn’t intersect with this mesh (it’s camera aligned) This is a Niagara Fluid 2D gas sim with Depth Map Collis… --- ## [Local Fog visible in viewport but not rendered ](https://forums.unrealengine.com/t/local-fog-visible-in-viewport-but-not-rendered/2653313)
**Author:** [@the\_strange\_twit](https://forums.unrealengine.com/u/the_strange_twit)\ **Replies:** 0\ **Last updated:** [September 3, 2025, 2:57pm UTC](https://forums.unrealengine.com/t/local-fog-visible-in-viewport-but-not-rendered/2653313 "2025-09-03T14:57:03Z")
Hi there, I’m not familiar with Unreal rendering yet and don’t understand what’s wrong in my render settings. I have a Local Fog Volume and a particule system in my scene. I started testing render and they didn’t show … --- ## [Precision of UStaticMesh vertices ](https://forums.unrealengine.com/t/precision-of-ustaticmesh-vertices/2655607)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 3\ **Last updated:** [September 3, 2025, 10:23am UTC](https://forums.unrealengine.com/t/precision-of-ustaticmesh-vertices/2655607 "2025-09-03T10:23:51Z")
Hi, we are rendering large terrain tiles at various sizes and resolution. The approx size of the tile’s extent in the picture is 276,992 x 243,967 x 234,252 where the tile mesh is slanted. The picture is the intersection… --- ## [PSO collection & integration in UE5.5+ ](https://forums.unrealengine.com/t/pso-collection-integration-in-ue5-5/2661974)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 4\ **Last updated:** [September 3, 2025, 4:41am UTC](https://forums.unrealengine.com/t/pso-collection-integration-in-ue5-5/2661974 "2025-09-03T04:41:05Z")
Hello, I’m trying to integrate PSO in a UE 5.5 game, but Manually Creating Bundled PSO Caches in Unreal Engine | Unreal Engine 5.5 Documentation | Epic Developer Community doesn’t match what the engine produces. There … --- ## [Flickering volumetric fog/light shaft with lumen ](https://forums.unrealengine.com/t/flickering-volumetric-fog-light-shaft-with-lumen/2653155)
**Author:** [@asopos09](https://forums.unrealengine.com/u/asopos09)\ **Replies:** 0\ **Last updated:** [September 3, 2025, 3:50am UTC](https://forums.unrealengine.com/t/flickering-volumetric-fog-light-shaft-with-lumen/2653155 "2025-09-03T03:50:57Z")
I have this light flickering issue visible in the volumetric fog ligh shafts. https://youtu.be/kM4IPkcIYX4 it is only from one angle as you can see in the comparison. Settings are r.VolumetricFog.GridPixelSize 3 r.Vo… --- ## [Movie Render Queue Stereo Panorama C++ workaround](https://forums.unrealengine.com/t/movie-render-queue-stereo-panorama-c-workaround/2653090)
**Author:** [@cys10107](https://forums.unrealengine.com/u/cys10107)\ **Replies:** 1\ **Last updated:** [September 3, 2025, 3:09am UTC](https://forums.unrealengine.com/t/movie-render-queue-stereo-panorama-c-workaround/2653090 "2025-09-03T03:09:34Z")
Follow up of this thread. @MonsterNice showed a working stereoscopic movie render queue render, but didn’t posted the solutions. I’m not very good at C++, so starting this thread to share my workaround to get stereosco… --- ## [Overlay Material is not working on Skeletal Mesh with Cloth](https://forums.unrealengine.com/t/overlay-material-is-not-working-on-skeletal-mesh-with-cloth/2653126)
**Author:** [@ADIAN](https://forums.unrealengine.com/u/ADIAN)\ **Replies:** 0\ **Last updated:** [September 3, 2025, 1:42am UTC](https://forums.unrealengine.com/t/overlay-material-is-not-working-on-skeletal-mesh-with-cloth/2653126 "2025-09-03T01:42:28Z")
Overlay Material just doesn’t show up on Skeletal Mesh with Cloth Asset. It only works without Cloth Asset. I tried disabling cloth simulation at runtime, no luck. I guess engine bug? (UE version 5.5) --- ## [Hardware lumen surface cache artifacts on nanite geometry ](https://forums.unrealengine.com/t/hardware-lumen-surface-cache-artifacts-on-nanite-geometry/2661649)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 5\ **Last updated:** [September 3, 2025, 1:26am UTC](https://forums.unrealengine.com/t/hardware-lumen-surface-cache-artifacts-on-nanite-geometry/2661649 "2025-09-03T01:26:06Z")
Hello, We’ve recently switched to using hardware lumen on our project and started seeing some odd dark artefacts on some meshes. These issues result in the lumen being generally darker and more unstable. Screentraces … --- ## [Runtime virtual texture sets landscape to lower mip](https://forums.unrealengine.com/t/runtime-virtual-texture-sets-landscape-to-lower-mip/154882)
**Author:** [@brendan.jd](https://forums.unrealengine.com/u/brendan.jd)\ **Replies:** 79\ **Last updated:** [September 2, 2025, 4:09pm UTC](https://forums.unrealengine.com/t/runtime-virtual-texture-sets-landscape-to-lower-mip/154882 "2025-09-02T16:09:02Z")
​Hey guys, Testing out the new runtime virtual texture system on my landscape object and while the virtual textures render great, the landscape’s original texture beneath it is doing this bizarre thing where it gets stu… --- ## [Masked materials clipping on Meta Quest](https://forums.unrealengine.com/t/masked-materials-clipping-on-meta-quest/2652091)
**Author:** [@Avatarus](https://forums.unrealengine.com/u/Avatarus)\ **Replies:** 1\ **Last updated:** [September 2, 2025, 12:13pm UTC](https://forums.unrealengine.com/t/masked-materials-clipping-on-meta-quest/2652091 "2025-09-02T12:13:56Z")
Just moved the project from 5.2 to 5.5. Launched apk on Quest 3 and noticed this in the right eye. All masked materials are clipped near the edge of the right screen. It also affects level geometry, not just widgets.… --- ## [升级ue5.6 vulkan 华为mate70奔溃 ](https://forums.unrealengine.com/t/ue5-6-vulkan-mate70/2661646)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 4\ **Last updated:** [September 2, 2025, 12:00pm UTC](https://forums.unrealengine.com/t/ue5-6-vulkan-mate70/2661646 "2025-09-02T12:00:45Z")
第三人称工程 使用ue5.4.4 关闭gpuscene distancefield ，出vulkan和opengl集合的apk，华为mate60在ini中使用vulkan，可以正常运行，但是使用ue5.6.0出包，一样的配置vulkan会crash，opengl能正常运行。 [Previous page](https://forums.unrealengine.com/c/development-discussion/rendering/36.md?page=94) [Next page](https://forums.unrealengine.com/c/development-discussion/rendering/36.md?page=96)