# \#skylight **URL:** https://forums.unrealengine.com/tag/skylight/1956.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [CPU Lightmass UE 5.8](https://forums.unrealengine.com/t/cpu-lightmass-ue-5-8/2729372)
**Author:** [@apfelbaum](https://forums.unrealengine.com/u/apfelbaum)\ **Replies:** 3\ **Last updated:** [August 26, 2026, 3:00pm UTC](https://forums.unrealengine.com/t/cpu-lightmass-ue-5-8/2729372 "2026-08-26T15:00:48Z")
Summary CPU Lightmass is broken. Skylight bounce is not working on static meshes as well as clear coat enabled materials dont have skylight occlusion. this affects legacy as well as substrate materials. The name of the … --- ## [Harmonia — a scene staging toolkit for UE 5.7/5.8 ](https://forums.unrealengine.com/t/harmonia-a-scene-staging-toolkit-for-ue-5-7-5-8/2744469)
**Author:** [@Sepia211](https://forums.unrealengine.com/u/Sepia211)\ **Replies:** 0\ **Last updated:** [August 17, 2026, 5:57pm UTC](https://forums.unrealengine.com/t/harmonia-a-scene-staging-toolkit-for-ue-5-7-5-8/2744469 "2026-08-17T17:57:13Z")
Hi everyone! I’m an archviz artist at an architecture firm, and I’ve been building the toolkit I always wanted inside Unreal. It’s called Harmonia. One lighting rig and twelve viewport tools for UE 5.7 and 5.8, built… --- ## [Skylight light channels](https://forums.unrealengine.com/t/skylight-light-channels/1352161)
**Author:** [@Zipax64](https://forums.unrealengine.com/u/Zipax64)\ **Replies:** 1\ **Last updated:** [March 28, 2026, 8:48am UTC](https://forums.unrealengine.com/t/skylight-light-channels/1352161 "2026-03-28T08:48:36Z")
Hello unrealers. I find myself in a situation where I have to make some lights only light selected meshes. For this I use light channels, but now I need the light channels for a skylight source, and they does not have l… --- ## [(UE5) If a Skylight is placed inside a BP the scene leaves trails during motion, same skylight outside BP works as normal.](https://forums.unrealengine.com/t/ue5-if-a-skylight-is-placed-inside-a-bp-the-scene-leaves-trails-during-motion-same-skylight-outside-bp-works-as-normal/2701482)
**Author:** [@Poet\_11](https://forums.unrealengine.com/u/Poet_11)\ **Replies:** 0\ **Last updated:** [February 21, 2026, 11:40pm UTC](https://forums.unrealengine.com/t/ue5-if-a-skylight-is-placed-inside-a-bp-the-scene-leaves-trails-during-motion-same-skylight-outside-bp-works-as-normal/2701482 "2026-02-21T23:40:00Z")
This seems to be a strange one, whenever i place a Skylight in a simple Blueprint actor with the aim of controlling its settings later, and I place that BP in my scene (try any scene even a new basic one), any mesh with … --- ## [DFAO artefacts in shadows caused by movable SkyLight](https://forums.unrealengine.com/t/dfao-artefacts-in-shadows-caused-by-movable-skylight/2655932)
**Author:** [@Stefan\_9911](https://forums.unrealengine.com/u/Stefan_9911)\ **Replies:** 4\ **Last updated:** [September 19, 2025, 6:14am UTC](https://forums.unrealengine.com/t/dfao-artefacts-in-shadows-caused-by-movable-skylight/2655932 "2025-09-19T06:14:39Z")
Hi I have a video that shows the black artefacts (splotches) appear in shadows and that it’s caused by SkyLight’s cast shadows option. And that the SkyLight is probably using distance field AO to produce those shadows. I… --- ## [SkyLight not working on streaming level](https://forums.unrealengine.com/t/skylight-not-working-on-streaming-level/2650884)
**Author:** [@HelioHsx](https://forums.unrealengine.com/u/HelioHsx)\ **Replies:** 2\ **Last updated:** [August 26, 2025, 7:40am UTC](https://forums.unrealengine.com/t/skylight-not-working-on-streaming-level/2650884 "2025-08-26T07:40:58Z")
Hello, I have a main persistent level containing two streaming sub-levels. The game starts on the first level and the skylight works correctly there. I then have the character go through a portal which teleports him to … --- ## [Skylight not working](https://forums.unrealengine.com/t/skylight-not-working/470927)
**Author:** [@Nino\_Mancuso](https://forums.unrealengine.com/u/Nino_Mancuso)\ **Replies:** 18\ **Last updated:** [July 28, 2025, 10:23am UTC](https://forums.unrealengine.com/t/skylight-not-working/470927 "2025-07-28T10:23:48Z")
Not sure what the heck is going on, Skylight is set to Visible and Affects World, the skysphere is within the distance threshold, but the skylights intensity changes nothing . Tried Recapturing, but also does nothing. Tr… --- ## [Skylight radiosity taking too much time](https://forums.unrealengine.com/t/skylight-radiosity-taking-too-much-time/414879)
**Author:** [@Vasev](https://forums.unrealengine.com/u/Vasev)\ **Replies:** 4\ **Last updated:** [July 3, 2025, 3:48pm UTC](https://forums.unrealengine.com/t/skylight-radiosity-taking-too-much-time/414879 "2025-07-03T15:48:54Z")
Hi, So recently I noticed black lines in my swarm agent and once I hover my mouse over them, it says “skylight radiosity”. So I’m facing an issue with the scene I’m currently working on. It’s an arch viz interior walkth… --- ## [Certain meshes have flickering black splotches which upon closer inspection say "Your scene contains a skydome mesh with a sky material but it does not cover that part of the screen"](https://forums.unrealengine.com/t/certain-meshes-have-flickering-black-splotches-which-upon-closer-inspection-say-your-scene-contains-a-skydome-mesh-with-a-sky-material-but-it-does-not-cover-that-part-of-the-screen/483735)
**Author:** [@dbGuava](https://forums.unrealengine.com/u/dbGuava)\ **Replies:** 11\ **Last updated:** [April 11, 2025, 3:20pm UTC](https://forums.unrealengine.com/t/certain-meshes-have-flickering-black-splotches-which-upon-closer-inspection-say-your-scene-contains-a-skydome-mesh-with-a-sky-material-but-it-does-not-cover-that-part-of-the-screen/483735 "2025-04-11T15:20:55Z")
I am seeing this on a variety of vegetation meshes and even when all sky lights are disabled, local point lights still cause this issue with the same message. If the object has no rotation it behaves perfectly fine. Othe… --- ## [Horrid Skylight "shadow" artifacts on large objects](https://forums.unrealengine.com/t/horrid-skylight-shadow-artifacts-on-large-objects/2387294)
**Author:** [@Perfect\_Human\_Interface](https://forums.unrealengine.com/u/Perfect_Human_Interface)\ **Replies:** 1\ **Last updated:** [March 13, 2025, 3:18am UTC](https://forums.unrealengine.com/t/horrid-skylight-shadow-artifacts-on-large-objects/2387294 "2025-03-13T03:18:25Z")
Some objects in my world get these horrible looking artifacts all over them from SkyLight shadowing as you approach them. If I switch off “Cast Shadows” in the SkyLight they disappear. These are large game world ob… --- ## [Change Skylight Intensity at Runtime](https://forums.unrealengine.com/t/change-skylight-intensity-at-runtime/460244)
**Author:** [@S3B3ST](https://forums.unrealengine.com/u/S3B3ST)\ **Replies:** 5\ **Last updated:** [March 11, 2025, 8:44pm UTC](https://forums.unrealengine.com/t/change-skylight-intensity-at-runtime/460244 "2025-03-11T20:44:35Z")
Hey there! I would like to be able to make a BoxCollision which works as a PostProcessVolume because the PostProcessVolume has missing Features: If the Player walks into the Volume, I want to set the Skylight intensity… --- ## [HDRI Backdrop not emitting](https://forums.unrealengine.com/t/hdri-backdrop-not-emitting/658165)
**Author:** [@Axomit10](https://forums.unrealengine.com/u/Axomit10)\ **Replies:** 8\ **Last updated:** [November 24, 2024, 2:16am UTC](https://forums.unrealengine.com/t/hdri-backdrop-not-emitting/658165 "2024-11-24T02:16:24Z")
Hi, The default size of the HDRI Background is 150. When I increase it above 500. The Skydome stops emitting light. In both cases SkyLight, it’s deactivated. Does anyone know why? --- ## [Skylight is making issues](https://forums.unrealengine.com/t/skylight-is-making-issues/2076823)
**Author:** [@Pouyad](https://forums.unrealengine.com/u/Pouyad)\ **Replies:** 0\ **Last updated:** [October 20, 2024, 9:07am UTC](https://forums.unrealengine.com/t/skylight-is-making-issues/2076823 "2024-10-20T09:07:21Z")
Hey everyone. I’m doing a bake-lighting excerceise in a Polar Facility map, but I’m running into this issue. You can see the edges of the meshes are picking up the skylight blue color. I’m not sure if that’s materials… --- ## [Skylight is broken](https://forums.unrealengine.com/t/skylight-is-broken/422589)
**Author:** [@Canotico](https://forums.unrealengine.com/u/Canotico)\ **Replies:** 3\ **Last updated:** [September 30, 2024, 6:52pm UTC](https://forums.unrealengine.com/t/skylight-is-broken/422589 "2024-09-30T18:52:49Z")
A scene I’ve been working on for a while had its Skylight suddenly broken. It’s as if the Skylight had always 0 intensity and essentially not affecting the world at all. No matter whether I increase its Intensity, change… --- ## [Skylight "Real Time Capture" does not working](https://forums.unrealengine.com/t/skylight-real-time-capture-does-not-working/475824)
**Author:** [@Outsiders\_Edge](https://forums.unrealengine.com/u/Outsiders_Edge)\ **Replies:** 7\ **Last updated:** [September 25, 2024, 10:32pm UTC](https://forums.unrealengine.com/t/skylight-real-time-capture-does-not-working/475824 "2024-09-25T22:32:55Z")
Hey I’m trying to use the new “Real Time Capture” function of Skylight to make a simple day-night cycle. But it doesn’t seem to do anything. I still need to manually call the Recapture to update Is there anything other … --- ## [How to exclude something from receiving a specific shadows ?](https://forums.unrealengine.com/t/how-to-exclude-something-from-receiving-a-specific-shadows/2034129)
**Author:** [@Elites94](https://forums.unrealengine.com/u/Elites94)\ **Replies:** 0\ **Last updated:** [September 23, 2024, 1:54pm UTC](https://forums.unrealengine.com/t/how-to-exclude-something-from-receiving-a-specific-shadows/2034129 "2024-09-23T13:54:33Z")
Hello, Is there any way to prevent my hair skeletal mesh to receive the shadow from the sky light ? (But receive the one from the sun) reason is that the sky light is causing weird noise on my hair. I tried a lot of th… --- ## [The Real Time Capture option on the Sky Light causes significant stuttering.](https://forums.unrealengine.com/t/the-real-time-capture-option-on-the-sky-light-causes-significant-stuttering/1857737)
**Author:** [@bartex\_music](https://forums.unrealengine.com/u/bartex_music)\ **Replies:** 4\ **Last updated:** [June 9, 2024, 10:59am UTC](https://forums.unrealengine.com/t/the-real-time-capture-option-on-the-sky-light-causes-significant-stuttering/1857737 "2024-06-09T10:59:45Z")
Hello there, I have a small issue but one that might be hard to fix. The Sky Light’s Real Time Capture option is causing some significant lag on my engine. I don’t really know how all this 99%/1% FPS business works yet… --- ## [How to use a .exr file as skylight/background?](https://forums.unrealengine.com/t/how-to-use-a-exr-file-as-skylight-background/510006)
**Author:** [@rubm123](https://forums.unrealengine.com/u/rubm123)\ **Replies:** 9\ **Last updated:** [May 9, 2024, 1:19pm UTC](https://forums.unrealengine.com/t/how-to-use-a-exr-file-as-skylight-background/510006 "2024-05-09T13:19:41Z")
Nasa provides HDRI images in the .exr format of the actual night sky (of 2020), here. My question is, how to use that star map as background for my scene? I’ve seen someone putting a huge sphere around his scene and ap… --- ## [Manually set reflection cubemap](https://forums.unrealengine.com/t/manually-set-reflection-cubemap/305591)
**Author:** [@anonymous\_user\_d4012c78](https://forums.unrealengine.com/u/anonymous_user_d4012c78)\ **Replies:** 3\ **Last updated:** [March 14, 2024, 2:12pm UTC](https://forums.unrealengine.com/t/manually-set-reflection-cubemap/305591 "2024-03-14T14:12:28Z")
Hey, I have a totally dynamic scene and I want the objects in my level to have some reflection. The reflections don’t need to be accurate, I have a bunch of custom cubemaps that I want to use to define my environment. I … --- ## [How to make scene capture ignore sky lighting](https://forums.unrealengine.com/t/how-to-make-scene-capture-ignore-sky-lighting/1675563)
**Author:** [@Faey01](https://forums.unrealengine.com/u/Faey01)\ **Replies:** 1\ **Last updated:** [February 9, 2024, 3:01am UTC](https://forums.unrealengine.com/t/how-to-make-scene-capture-ignore-sky-lighting/1675563 "2024-02-09T03:01:31Z")
Hi, I have created a scene capture that gonna act as a minimap for my player. However, I wanted to make it become unaffected by the skylight as my game have day and night cycle. I wanted it to stay the same and not capt… --- ## [\[Plugin\] New Unreal Engine Lighting Plugin: HDR Light Studio](https://forums.unrealengine.com/t/plugin-new-unreal-engine-lighting-plugin-hdr-light-studio/1502775)
**Author:** [@LuizaLightmap](https://forums.unrealengine.com/u/LuizaLightmap)\ **Replies:** 2\ **Last updated:** [December 8, 2023, 9:24am UTC](https://forums.unrealengine.com/t/plugin-new-unreal-engine-lighting-plugin-hdr-light-studio/1502775 "2023-12-08T09:24:59Z")
HDR Light Studio plugin for Unreal Engine 5 is now available! Our plugin brings an efficient and powerful lighting workflow to Unreal Engine users. Check out the YouTube video below to see it in action: --- ## [HDRI Not working correctly](https://forums.unrealengine.com/t/hdri-not-working-correctly/1505836)
**Author:** [@BasDaBas](https://forums.unrealengine.com/u/BasDaBas)\ **Replies:** 0\ **Last updated:** [December 8, 2023, 12:12pm UTC](https://forums.unrealengine.com/t/hdri-not-working-correctly/1505836 "2023-12-08T12:12:50Z")
My HDRI is not working correctly, So when I’m using a HDRI and put the size at 2000 my interior isn’t lit up. when i change the size to 15000 my interior start lighting up again. However, when my hdri is at 15000 size th… --- ## [UE4 skylight doesnt work](https://forums.unrealengine.com/t/ue4-skylight-doesnt-work/488527)
**Author:** [@lwolgast](https://forums.unrealengine.com/u/lwolgast)\ **Replies:** 2\ **Last updated:** [December 4, 2023, 10:33pm UTC](https://forums.unrealengine.com/t/ue4-skylight-doesnt-work/488527 "2023-12-04T22:33:53Z")
Hello, I have a skylight and a directional light in my scene. Everything worked perfect but after closing and reopening my scene me skylight isnt working anymore. My shadows are really dark and everything looks bad and … --- ## [Orthographic camera not showing sky atmosphere](https://forums.unrealengine.com/t/orthographic-camera-not-showing-sky-atmosphere/1434306)
**Author:** [@sweeetjd](https://forums.unrealengine.com/u/sweeetjd)\ **Replies:** 0\ **Last updated:** [November 29, 2023, 11:24pm UTC](https://forums.unrealengine.com/t/orthographic-camera-not-showing-sky-atmosphere/1434306 "2023-11-29T23:24:19Z")
My project has an orthographic camera, and this appears to cause the sky atmosphere to stop working during playtesting. I know this was an issue with previous versions of Unreal, but does anyone know if there’s any way t… --- ## [Objects are seen even if there are no lights on the map](https://forums.unrealengine.com/t/objects-are-seen-even-if-there-are-no-lights-on-the-map/1318734)
**Author:** [@Evil\_Ghoul\_11](https://forums.unrealengine.com/u/Evil_Ghoul_11)\ **Replies:** 0\ **Last updated:** [October 1, 2023, 1:05pm UTC](https://forums.unrealengine.com/t/objects-are-seen-even-if-there-are-no-lights-on-the-map/1318734 "2023-10-01T13:05:00Z")
Hello, I have a problem with the lights, I got a project from ue4, I open it in ue5, but I want to leave it in the dark, the problem is that when I delete everything, and add a cube, it looks perfectly, which I don’t wan… --- ## [Upside Down Sky inspired by Stranger Things](https://forums.unrealengine.com/t/upside-down-sky-inspired-by-stranger-things/1225563)
**Author:** [@NativeRock](https://forums.unrealengine.com/u/NativeRock)\ **Replies:** 1\ **Last updated:** [July 11, 2023, 10:35pm UTC](https://forums.unrealengine.com/t/upside-down-sky-inspired-by-stranger-things/1225563 "2023-07-11T22:35:14Z")
I made it inspired by Stranger Things. I tried to emulate the Upside Down. could i do it? Waiting for your ideas. --- ## [Horrible light artifacts (from skylight) near edge of the moving camera](https://forums.unrealengine.com/t/horrible-light-artifacts-from-skylight-near-edge-of-the-moving-camera/1167745)
**Author:** [@Velu12](https://forums.unrealengine.com/u/Velu12)\ **Replies:** 3\ **Last updated:** [May 16, 2023, 4:50pm UTC](https://forums.unrealengine.com/t/horrible-light-artifacts-from-skylight-near-edge-of-the-moving-camera/1167745 "2023-05-16T16:50:32Z")
Hello there. While ago I migrated my project to 5.2 from 5.1 and quickly noticed those strange things near edge of my camera view. Im nearly sure it wasn’t a thing in 5.1 for me, anyone having this problem? … --- ## [UE5 breaks the preview window of the Material Editor if Ray Traced Skylight is enabled](https://forums.unrealengine.com/t/ue5-breaks-the-preview-window-of-the-material-editor-if-ray-traced-skylight-is-enabled/785917)
**Author:** [@MisterPixel](https://forums.unrealengine.com/u/MisterPixel)\ **Replies:** 1\ **Last updated:** [March 29, 2023, 4:17pm UTC](https://forums.unrealengine.com/t/ue5-breaks-the-preview-window-of-the-material-editor-if-ray-traced-skylight-is-enabled/785917 "2023-03-29T16:17:15Z")
Ok, so my Material Editor’s preview window became corrupted some days ago and basically the “ground level” was pitch black, no matter what I did. However, after much debugging, I finally found the culprit: it’s because I… --- ## [SkyLight leaks into translucent materials in fully enclosed room when using Lumen](https://forums.unrealengine.com/t/skylight-leaks-into-translucent-materials-in-fully-enclosed-room-when-using-lumen/556808)
**Author:** [@ArXen421](https://forums.unrealengine.com/u/ArXen421)\ **Replies:** 9\ **Last updated:** [March 23, 2023, 4:03pm UTC](https://forums.unrealengine.com/t/skylight-leaks-into-translucent-materials-in-fully-enclosed-room-when-using-lumen/556808 "2023-03-23T16:03:04Z")
The issue looks like this: \[Album\] SkyLight leaks into translucent materials in fully enclosed room when using... … --- ## [Cube is shaded completely dark/black at bootom face](https://forums.unrealengine.com/t/cube-is-shaded-completely-dark-black-at-bootom-face/770543)
**Author:** [@Maderschaden](https://forums.unrealengine.com/u/Maderschaden)\ **Replies:** 14\ **Last updated:** [February 15, 2023, 12:18pm UTC](https://forums.unrealengine.com/t/cube-is-shaded-completely-dark-black-at-bootom-face/770543 "2023-02-15T12:18:03Z")
Hello everyone, I have this problem where any cube in my world has a completely black bottom face. Only once I rotate it a little bit does the face with its color become visible. This is my current lighting setup in… [Next page](https://forums.unrealengine.com/tag/skylight/1956.md?match_all_tags=true&page=1&tags%5B%5D=skylight)