# Rendering **URL:** https://forums.unrealengine.com/c/development-discussion/rendering/36.md?page=84 [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) **Page:** 85 --- ## [Sun directional light drastically alters when volumetric cloud shadows are enabled ](https://forums.unrealengine.com/t/sun-directional-light-drastically-alters-when-volumetric-cloud-shadows-are-enabled/2672625)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 8\ **Last updated:** [October 8, 2025, 9:59pm UTC](https://forums.unrealengine.com/t/sun-directional-light-drastically-alters-when-volumetric-cloud-shadows-are-enabled/2672625 "2025-10-08T21:59:38Z")
There is a blueprint that will increase the TOD for the SkyAtmosphere. The volumetric clouds are largely stationary but do seem to have a bit of randomness. The issue is that the global light that illuminates the scene … --- ## [Approximation returns black mesh when Minimum Lod is not 0 ](https://forums.unrealengine.com/t/approximation-returns-black-mesh-when-minimum-lod-is-not-0/2682255)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 7\ **Last updated:** [November 6, 2025, 3:56am UTC](https://forums.unrealengine.com/t/approximation-returns-black-mesh-when-minimum-lod-is-not-0/2682255 "2025-11-06T03:56:55Z")
In attached project, you can see how a mesh generated by MergeActor’s approximation mode is broken if source mesh has lod and a minimum lod different than 0. Mesh has a black basecolor (and other attributes too, only nor… --- ## [Failed to generate Nanite data for this mesh, we want to know the reason ](https://forums.unrealengine.com/t/failed-to-generate-nanite-data-for-this-mesh-we-want-to-know-the-reason/2670678)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 6\ **Last updated:** [October 7, 2025, 4:04am UTC](https://forums.unrealengine.com/t/failed-to-generate-nanite-data-for-this-mesh-we-want-to-know-the-reason/2670678 "2025-10-07T04:04:26Z")
Our art team imported a series of meshes, but only this particular mesh encountered unexpected issues. This mesh fails to generate valid Nanite data, and the SDF data is also invalid. \[Image Removed\] \[Image Removed\] … --- ## [Dynamic Mesh Not Casting Shadows](https://forums.unrealengine.com/t/dynamic-mesh-not-casting-shadows/668904)
**Author:** [@Kdender](https://forums.unrealengine.com/u/Kdender)\ **Replies:** 2\ **Last updated:** [October 6, 2025, 11:59pm UTC](https://forums.unrealengine.com/t/dynamic-mesh-not-casting-shadows/668904 "2025-10-06T23:59:59Z")
I am creating Dynamic Meshes (FDynamicMesh3) in c++ but they don’t seem to be able to cast shadows. In my scene i have this white stretched cube and the grey mesh is the mesh created through a script. It neither casts a… --- ## [A question about light and cast shadows!](https://forums.unrealengine.com/t/a-question-about-light-and-cast-shadows/2662597)
**Author:** [@WDRK23](https://forums.unrealengine.com/u/WDRK23)\ **Replies:** 2\ **Last updated:** [October 6, 2025, 11:20pm UTC](https://forums.unrealengine.com/t/a-question-about-light-and-cast-shadows/2662597 "2025-10-06T23:20:54Z")
Hello! Is there a way to have a light in the actor’s character that only casts shadows on the environment, without illuminating the environment or the character? I know that in some games all the light is baked on stati… --- ## [Request: Per-pixel transparent, click-configurable Slate window in standalone/shipping (desktop overlays) ](https://forums.unrealengine.com/t/request-per-pixel-transparent-click-configurable-slate-window-in-standalone-shipping-desktop-overlays/2671911)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 2\ **Last updated:** [October 6, 2025, 8:18pm UTC](https://forums.unrealengine.com/t/request-per-pixel-transparent-click-configurable-slate-window-in-standalone-shipping-desktop-overlays/2671911 "2025-10-06T20:18:11Z")
I’d like to create a separate Slate SWindow—independent from the game viewport—that can be positioned anywhere on the desktop, with a fully transparent background (show desktop behind it), while still rendering Slate wid… --- ## [MRQ Console Variables do NOT revert to pre-render state](https://forums.unrealengine.com/t/mrq-console-variables-do-not-revert-to-pre-render-state/2651851)
**Author:** [@darknloud](https://forums.unrealengine.com/u/darknloud)\ **Replies:** 2\ **Last updated:** [October 6, 2025, 6:24pm UTC](https://forums.unrealengine.com/t/mrq-console-variables-do-not-revert-to-pre-render-state/2651851 "2025-10-06T18:24:09Z")
Using UE 5.6.1 When using Console Variables in MRQ, they values of the console variable does not appear to revert to the pre-render value. For example Before the render, the console verifies that r.ForceLOD = -1 MRQ … --- ## [Shader Symbols not generated on Windows in 5.5 ](https://forums.unrealengine.com/t/shader-symbols-not-generated-on-windows-in-5-5/2671917)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 1\ **Last updated:** [October 6, 2025, 6:20pm UTC](https://forums.unrealengine.com/t/shader-symbols-not-generated-on-windows-in-5-5/2671917 "2025-10-06T18:20:19Z")
We’re having issues generating symbols when cooking shaders in 5.5. We believe we’re being hit by this bug: Unreal Engine Issues and Bug Tracker (UE\\-252263) Unfortunately the CL listed on that bug (40541058) doesn’t s… --- ## [\[UE5.6\] Gradient lighting artifacts. How to fix?](https://forums.unrealengine.com/t/ue5-6-gradient-lighting-artifacts-how-to-fix/2662508)
**Author:** [@AlienRenders](https://forums.unrealengine.com/u/AlienRenders)\ **Replies:** 2\ **Last updated:** [October 6, 2025, 3:58pm UTC](https://forums.unrealengine.com/t/ue5-6-gradient-lighting-artifacts-how-to-fix/2662508 "2025-10-06T15:58:12Z")
Making a tower defense game. In the current level I’m making, I use blocks that I place side by side to create a path. But the lighting on each block creates a gradient pattern. This only happens on these blocks, not on … --- ## [How do i exclude niagara particles from a postprocess volume? ](https://forums.unrealengine.com/t/how-do-i-exclude-niagara-particles-from-a-postprocess-volume/2662717)
**Author:** [@Maelstrom909](https://forums.unrealengine.com/u/Maelstrom909)\ **Replies:** 0\ **Last updated:** [October 6, 2025, 3:08pm UTC](https://forums.unrealengine.com/t/how-do-i-exclude-niagara-particles-from-a-postprocess-volume/2662717 "2025-10-06T15:08:57Z")
Hi i am trying to make this fire retain its colour while everything else remains in greyscale in a postprocess volume. The fire is from a niagara system pack called Perfect Fire VFX, specifically the NS\_Fire\_Big niaga… --- ## [Cast shadow follows camera. How can I fix it.](https://forums.unrealengine.com/t/cast-shadow-follows-camera-how-can-i-fix-it/479377)
**Author:** [@KentaDoi](https://forums.unrealengine.com/u/KentaDoi)\ **Replies:** 10\ **Last updated:** [October 6, 2025, 12:57pm UTC](https://forums.unrealengine.com/t/cast-shadow-follows-camera-how-can-i-fix-it/479377 "2025-10-06T12:57:53Z")
Hi I got this shadow around my camera that follows me around as if the camera itself is casting it. How can I get rid of it?? --- ## [More info on Hardware Benchmark discrepancies ](https://forums.unrealengine.com/t/more-info-on-hardware-benchmark-discrepancies/2671913)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 2\ **Last updated:** [October 6, 2025, 11:10am UTC](https://forums.unrealengine.com/t/more-info-on-hardware-benchmark-discrepancies/2671913 "2025-10-06T11:10:42Z")
This question was created in reference to: \[GPU Benchmark (SynthBenchmark) gives different GPUPerfIndex values in \[Content removed\] We are also encountering the issue described in the thread above. I noticed that the is… --- ## [Crash in ConvertToExternalUniformBuffer ](https://forums.unrealengine.com/t/crash-in-converttoexternaluniformbuffer/2671910)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 2\ **Last updated:** [October 6, 2025, 8:22am UTC](https://forums.unrealengine.com/t/crash-in-converttoexternaluniformbuffer/2671910 "2025-10-06T08:22:57Z")
Hi Epic, we have one rather frequent outstanding crash in the shipped game (5.4.4 + RHI Parallel Translate). We can’t t get a repro locally from our QA, we only see a lot of dumps from out in the wild. I pasted the ca… --- ## [EditzStock: Free Video & VFX Assets for Creators](https://forums.unrealengine.com/t/editzstock-free-video-vfx-assets-for-creators/2662559)
**Author:** [@phamarati](https://forums.unrealengine.com/u/phamarati)\ **Replies:** 0\ **Last updated:** [October 6, 2025, 6:18am UTC](https://forums.unrealengine.com/t/editzstock-free-video-vfx-assets-for-creators/2662559 "2025-10-06T06:18:30Z")
Hello everyone, See more - EditzStock I’d like to introduce EditzStock, a high-quality resource hub for creators and editors looking for premium backgrounds, PNG assets, and transparent overlays. Whether you’re a graph… --- ## [Skysphere gets washed out by Sky Atmosphere. What's the intended workflow?](https://forums.unrealengine.com/t/skysphere-gets-washed-out-by-sky-atmosphere-whats-the-intended-workflow/2409104)
**Author:** [@Perfect\_Human\_Interface](https://forums.unrealengine.com/u/Perfect_Human_Interface)\ **Replies:** 1\ **Last updated:** [October 5, 2025, 5:43pm UTC](https://forums.unrealengine.com/t/skysphere-gets-washed-out-by-sky-atmosphere-whats-the-intended-workflow/2409104 "2025-10-05T17:43:35Z")
I’ve starting to experiment with using the Skysphere. For now I’ve just put some HDRI’s into my test scene. But I notice they get quite washed out by the Sky Atmosphere. I can mess with contrast etc. of the HDRI a… --- ## [CGEES.COM - Free, High Quality HDRI Skies for your CG renders!](https://forums.unrealengine.com/t/cgees-com-free-high-quality-hdri-skies-for-your-cg-renders/147352)
**Author:** [@Gazu](https://forums.unrealengine.com/u/Gazu)\ **Replies:** 2\ **Last updated:** [October 5, 2025, 10:44am UTC](https://forums.unrealengine.com/t/cgees-com-free-high-quality-hdri-skies-for-your-cg-renders/147352 "2025-10-05T10:44:09Z")
www.cgees.com / FREE HDRI SKIES Hi guys, recently i finished my new spherical HDR panorama website where you can find more then 50 HDRI Skies with a resolution of up to 24K Px´s in 32 Bit .HDR format, free of charge,… --- ## [Morph target application during actor construction with Leader Pose components ](https://forums.unrealengine.com/t/morph-target-application-during-actor-construction-with-leader-pose-components/2670921)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 4\ **Last updated:** [October 4, 2025, 1:48am UTC](https://forums.unrealengine.com/t/morph-target-application-during-actor-construction-with-leader-pose-components/2670921 "2025-10-04T01:48:50Z")
We are building a modular character system in UE5.6.0 using the Leader Pose Component setup, as described in Epic’s documentation: Leader Pose Component Documentation Our setup requires morph targets on the follower me… --- ## [Terrain tool Shift+left click doesn't remove the texture painted](https://forums.unrealengine.com/t/terrain-tool-shift-left-click-doesnt-remove-the-texture-painted/396855)
**Author:** [@BeatMeatPopsicle](https://forums.unrealengine.com/u/BeatMeatPopsicle)\ **Replies:** 3\ **Last updated:** [October 4, 2025, 12:54am UTC](https://forums.unrealengine.com/t/terrain-tool-shift-left-click-doesnt-remove-the-texture-painted/396855 "2025-10-04T00:54:57Z")
Hi! I am following this tutorial Getting Started with Landscapes | Live Training | Unreal Engine - YouTube , and using no-weight-blend when I SHIFT + LEFT CLICK to remove what I have painted over my grass texture it doe… --- ## [Lumen reflections glitching in stereo rendering right eye ](https://forums.unrealengine.com/t/lumen-reflections-glitching-in-stereo-rendering-right-eye/2670911)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 2\ **Last updated:** [October 3, 2025, 7:25pm UTC](https://forums.unrealengine.com/t/lumen-reflections-glitching-in-stereo-rendering-right-eye/2670911 "2025-10-03T19:25:50Z")
This question was created in reference to: \[Bright “Flares” on geometry of right eye with Lumen and Instanced Stereo in \[Content removed\] Regarding referenced topic, issue is still observed in stereo rendering in 5.5.4 … --- ## [在ue中放置平面反射，在G键运行模式下反射效果消失](https://forums.unrealengine.com/t/ue-g/613142)
**Author:** [@caoben](https://forums.unrealengine.com/u/caoben)\ **Replies:** 2\ **Last updated:** [October 3, 2025, 4:22pm UTC](https://forums.unrealengine.com/t/ue-g/613142 "2025-10-03T16:22:49Z")
在ue4.27和ue5中创建一个平面反射，在G键运行模式下反射效果失效，渲染出图也没有反射效果，这个是什么原因。项目设置中的全局剪切平面已经激活了。 --- ## [How do I fix this weird reflection on the wall? ](https://forums.unrealengine.com/t/how-do-i-fix-this-weird-reflection-on-the-wall/2662084)
**Author:** [@paoloburato](https://forums.unrealengine.com/u/paoloburato)\ **Replies:** 0\ **Last updated:** [October 3, 2025, 4:22pm UTC](https://forums.unrealengine.com/t/how-do-i-fix-this-weird-reflection-on-the-wall/2662084 "2025-10-03T16:22:20Z")
I’m doing a still render of the interior of this house and when i render i see this weird horizontal beam of light on the wall. FYI I’m using ultra dynamic sky for the sky light. Do you know if it’s a material problem or… --- ## [Nanite Tesselation + Mesh Distance Fields works 5 seconds then breaks. ](https://forums.unrealengine.com/t/nanite-tesselation-mesh-distance-fields-works-5-seconds-then-breaks/2662069)
**Author:** [@Lyawx](https://forums.unrealengine.com/u/Lyawx)\ **Replies:** 0\ **Last updated:** [October 3, 2025, 3:25pm UTC](https://forums.unrealengine.com/t/nanite-tesselation-mesh-distance-fields-works-5-seconds-then-breaks/2662069 "2025-10-03T15:25:23Z")
Need help on a weird bug I am currently using Unreal 5.6.1. For beginners : SDF means Signed Distance Function : a function used to check the distance from a point to the closest point on a specific surface. Hello ther… --- ## [Material Displacement with Pathtracer (Not modelling displacement!)](https://forums.unrealengine.com/t/material-displacement-with-pathtracer-not-modelling-displacement/1692596)
**Author:** [@StrataHomes](https://forums.unrealengine.com/u/StrataHomes)\ **Replies:** 3\ **Last updated:** [October 3, 2025, 7:54am UTC](https://forums.unrealengine.com/t/material-displacement-with-pathtracer-not-modelling-displacement/1692596 "2025-10-03T07:54:05Z")
Hi, I am trying to achieve a material which can displace geometry for static renders (I’m not bothered by performance) I’ve been looking on many forums / YouTube for this answer, and I think the answer is a ‘no’ but I wa… --- ## [Can auto exposure be turned off entirely? (off. not reduced. just off)](https://forums.unrealengine.com/t/can-auto-exposure-be-turned-off-entirely-off-not-reduced-just-off/834258)
**Author:** [@TinyTracker1](https://forums.unrealengine.com/u/TinyTracker1)\ **Replies:** 13\ **Last updated:** [October 3, 2025, 4:01am UTC](https://forums.unrealengine.com/t/can-auto-exposure-be-turned-off-entirely-off-not-reduced-just-off/834258 "2025-10-03T04:01:25Z")
Can auto exposure be turned off entirely? From what I can tell auto exposure can be reduced drastically to appear to be “off”. However light sources that go over a certain threshold in intensity. (50000 or greater, it va… --- ## [Meshes for Nanite](https://forums.unrealengine.com/t/meshes-for-nanite/2661768)
**Author:** [@northstar](https://forums.unrealengine.com/u/northstar)\ **Replies:** 1\ **Last updated:** [October 3, 2025, 3:27am UTC](https://forums.unrealengine.com/t/meshes-for-nanite/2661768 "2025-10-03T03:27:49Z")
do meshes need to be made in quads rather than tris now… and no more 2 sided planes… and no alpha in use (holes) on textures… which in theory would require massive remakes i saw some of the meshes of trees in videos an… --- ## [Weird flickering shadows](https://forums.unrealengine.com/t/weird-flickering-shadows/2661883)
**Author:** [@Hajonk](https://forums.unrealengine.com/u/Hajonk)\ **Replies:** 1\ **Last updated:** [October 3, 2025, 3:15am UTC](https://forums.unrealengine.com/t/weird-flickering-shadows/2661883 "2025-10-03T03:15:04Z")
I’ve been trying to make this as a personal project, but whenever i try and implement lighting of any kind, it just gives these weird flickering shadows. How do i fix them, while retaining a decent lighting level here… --- ## [Issues with multiple mesh sections referencing the same MaterialIndex and Nanite ](https://forums.unrealengine.com/t/issues-with-multiple-mesh-sections-referencing-the-same-materialindex-and-nanite/2672624)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 6\ **Last updated:** [October 8, 2025, 10:21pm UTC](https://forums.unrealengine.com/t/issues-with-multiple-mesh-sections-referencing-the-same-materialindex-and-nanite/2672624 "2025-10-08T22:21:33Z")
Hi, We’ve noticed that if you create a mesh with multiple sections which point to the same MaterialIndex but reference different areas of the mesh (for example to set bVisibleInRayTracing or bCastShadow seperately, but … --- ## [Possible to save PostProcess Template/Preset?](https://forums.unrealengine.com/t/possible-to-save-postprocess-template-preset/126696)
**Author:** [@BernhardRieder](https://forums.unrealengine.com/u/BernhardRieder)\ **Replies:** 5\ **Last updated:** [October 3, 2025, 1:02am UTC](https://forums.unrealengine.com/t/possible-to-save-postprocess-template-preset/126696 "2025-10-03T01:02:39Z")
Is it possible to save a PostProcess Volume as a Template or Preset? So once saved, I can load it over and over again with the same settings? Thanks for any little help, appreciate it! :smiley: --- ## [Hair Shading Model + SSAO ](https://forums.unrealengine.com/t/hair-shading-model-ssao/2670684)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 3\ **Last updated:** [October 2, 2025, 10:26pm UTC](https://forums.unrealengine.com/t/hair-shading-model-ssao/2670684 "2025-10-02T22:26:43Z")
Our artists are reporting that when you use the Hair shading model in UE, it doesn’t get included in the Screen space AO pass. Is this expected? Is there any other approach to get some AO on hair? Thanks Chris --- ## [VSM ](https://forums.unrealengine.com/t/vsm/2670676)
**Author:** [@anonymous-edc](https://forums.unrealengine.com/u/anonymous-edc)\ **Replies:** 3\ **Last updated:** [October 2, 2025, 10:11pm UTC](https://forums.unrealengine.com/t/vsm/2670676 "2025-10-02T22:11:10Z")
We are suffering from lots of artefacts with the VSM from our directional lights, as showcased in the videos. It appears in multiple cases, like shadowcasting particles, or WPO materials casting shadows. We had this issu… [Previous page](https://forums.unrealengine.com/c/development-discussion/rendering/36.md?page=83) [Next page](https://forums.unrealengine.com/c/development-discussion/rendering/36.md?page=85)