# \#sun **URL:** https://forums.unrealengine.com/tag/sun/448.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [Unreal SunSky BP flickers due to math error](https://forums.unrealengine.com/t/unreal-sunsky-bp-flickers-due-to-math-error/468849)
**Author:** [@RonanMahonArt](https://forums.unrealengine.com/u/RonanMahonArt)\ **Replies:** 4\ **Last updated:** [September 12, 2026, 2:58pm UTC](https://forums.unrealengine.com/t/unreal-sunsky-bp-flickers-due-to-math-error/468849 "2026-09-12T14:58:59Z")
I was seeing pops/flickers when using the SunSky BP and driving the Solar Time through keyframes in Sequencer. I noticed there seemed to be some math error which affected the rotation of the directional light when the fl… --- ## [Sun flickering (directional light)](https://forums.unrealengine.com/t/sun-flickering-directional-light/481008)
**Author:** [@GODTonatiuh](https://forums.unrealengine.com/u/GODTonatiuh)\ **Replies:** 10\ **Last updated:** [December 22, 2025, 12:35pm UTC](https://forums.unrealengine.com/t/sun-flickering-directional-light/481008 "2025-12-22T12:35:03Z")
Hi, everyone. Help please to fix next issue. The sun (in the Diractional Light) is flickering when I turn camera to it (in the dev and play modes). PC, Nvidia GeForce 840M, High Perfomance Processor (in the Nvidia Contr… --- ## [Sun Reflection Too Wide](https://forums.unrealengine.com/t/sun-reflection-too-wide/2657095)
**Author:** [@MadMaximusJB](https://forums.unrealengine.com/u/MadMaximusJB)\ **Replies:** 0\ **Last updated:** [September 16, 2025, 10:01am UTC](https://forums.unrealengine.com/t/sun-reflection-too-wide/2657095 "2025-09-16T10:01:18Z")
Hello all, I’m having an issue. My sun is setting in a shot, yet for some reason, the tiny sliver of sun is casting a very wide reflection on my water body. Not too sure why this is happening. Change the source angle le… --- ## [Light Leakage Problem](https://forums.unrealengine.com/t/light-leakage-problem/2250825)
**Author:** [@TrojanWEQ](https://forums.unrealengine.com/u/TrojanWEQ)\ **Replies:** 4\ **Last updated:** [April 3, 2025, 2:56pm UTC](https://forums.unrealengine.com/t/light-leakage-problem/2250825 "2025-04-03T14:56:03Z")
Why does the light leak like this? There is Only Sunlight on the map. but light is leaking from this corner? moreover there is no error in Modeling. i checked everything everything is normal. i tried with different … --- ## [How do I change position of light source in a sub-editor?](https://forums.unrealengine.com/t/how-do-i-change-position-of-light-source-in-a-sub-editor/281180)
**Author:** [@yaure](https://forums.unrealengine.com/u/yaure)\ **Replies:** 4\ **Last updated:** [March 8, 2025, 6:59pm UTC](https://forums.unrealengine.com/t/how-do-i-change-position-of-light-source-in-a-sub-editor/281180 "2025-03-08T18:59:31Z")
Is there a way to change sun position in persona editor preview viewport ? By default there is huge sun reflection when we move camera to back of character. I don’t want to use unlit though. Can I change the “level map” … --- ## [probblem withDay night sequencer](https://forums.unrealengine.com/t/probblem-withday-night-sequencer/2252221)
**Author:** [@123456789tom](https://forums.unrealengine.com/u/123456789tom)\ **Replies:** 0\ **Last updated:** [December 31, 2024, 2:28pm UTC](https://forums.unrealengine.com/t/probblem-withday-night-sequencer/2252221 "2024-12-31T14:28:05Z")
i have a problem , with the sky sphere as seen in the picutres, also moon is not rising anymore, maybe i have messed up some textures or settings. --- ## [Why does my sun shine through my terrain and meshes?](https://forums.unrealengine.com/t/why-does-my-sun-shine-through-my-terrain-and-meshes/289256)
**Author:** [@virusescu\_1](https://forums.unrealengine.com/u/virusescu_1)\ **Replies:** 9\ **Last updated:** [December 17, 2023, 3:51pm UTC](https://forums.unrealengine.com/t/why-does-my-sun-shine-through-my-terrain-and-meshes/289256 "2023-12-17T15:51:10Z")
I will borrow another user’s screenshots because they show our common problem best: Now, I have dug the entire internet for day / night cycle and found many tutorials that seem to copy oneanother. I used a timeline, set… --- ## [Constantly Moving Directional Light Makes Shadows Flicker](https://forums.unrealengine.com/t/constantly-moving-directional-light-makes-shadows-flicker/439543)
**Author:** [@MarsMiner](https://forums.unrealengine.com/u/MarsMiner)\ **Replies:** 16\ **Last updated:** [August 1, 2023, 7:07pm UTC](https://forums.unrealengine.com/t/constantly-moving-directional-light-makes-shadows-flicker/439543 "2023-08-01T19:07:16Z")
Hi all, I’ve just added the ‘Geographically Accurate Sun Position’ plugin to my project (it was added in 4.21) and I am trying to make the sun constantly move across the sky in a day night cycle. I setup code to update … --- ## [Change Sun Disk Texture in Atmospheric Fog](https://forums.unrealengine.com/t/change-sun-disk-texture-in-atmospheric-fog/330612)
**Author:** [@Lycan17](https://forums.unrealengine.com/u/Lycan17)\ **Replies:** 3\ **Last updated:** [June 2, 2023, 11:09pm UTC](https://forums.unrealengine.com/t/change-sun-disk-texture-in-atmospheric-fog/330612 "2023-06-02T23:09:23Z")
Hey, I was just wondering if there’s a way to change the default white sun disk in Atmospheric Fog with a Star shape flared sun texture? That Sun disk just isn’t realistic and I’ve been circumventing this problem by bo… --- ## [Time based Sun Rotation](https://forums.unrealengine.com/t/time-based-sun-rotation/387620)
**Author:** [@NiklasZeroZero](https://forums.unrealengine.com/u/NiklasZeroZero)\ **Replies:** 2\ **Last updated:** [March 13, 2017, 5:34pm UTC](https://forums.unrealengine.com/t/time-based-sun-rotation/387620 "2017-03-13T17:34:44Z")
Hello, I am trying to get a time-based sun rotation. Which means I have a time variable which increases every second (in game second not real second). Now I want to rotate my light sources according to this variable. … --- ## [Changing Sun Height With Sequencer](https://forums.unrealengine.com/t/changing-sun-height-with-sequencer/470487)
**Author:** [@SomeRandomDoggo](https://forums.unrealengine.com/u/SomeRandomDoggo)\ **Replies:** 2\ **Last updated:** [March 3, 2023, 4:10pm UTC](https://forums.unrealengine.com/t/changing-sun-height-with-sequencer/470487 "2023-03-03T16:10:12Z")
Is it possible to change a sun height in a sky sphere using sequencer? --- ## [How do I create a custom sun disk for my skydome or integrate the atmospheric fog sun disk with my skydome?](https://forums.unrealengine.com/t/how-do-i-create-a-custom-sun-disk-for-my-skydome-or-integrate-the-atmospheric-fog-sun-disk-with-my-skydome/287843)
**Author:** [@dgonik\_1](https://forums.unrealengine.com/u/dgonik_1)\ **Replies:** 4\ **Last updated:** [February 14, 2023, 4:44am UTC](https://forums.unrealengine.com/t/how-do-i-create-a-custom-sun-disk-for-my-skydome-or-integrate-the-atmospheric-fog-sun-disk-with-my-skydome/287843 "2023-02-14T04:44:15Z")
Hey there, Branch: Binary Build Version: 4.2.1-2101290 Repro Steps: I’ve created a skydome in 3ds max and imported it as an fbx. I’ve also created a few textures with masks in photoshop (one texture with three cloud m… --- ## [How do I control the sun disc size when using Sky Atmosphere?](https://forums.unrealengine.com/t/how-do-i-control-the-sun-disc-size-when-using-sky-atmosphere/466723)
**Author:** [@anonymous\_user\_fd73624c1](https://forums.unrealengine.com/u/anonymous_user_fd73624c1)\ **Replies:** 4\ **Last updated:** [January 24, 2023, 7:55pm UTC](https://forums.unrealengine.com/t/how-do-i-control-the-sun-disc-size-when-using-sky-atmosphere/466723 "2023-01-24T19:55:15Z")
Hello! I just downloaded UE 4.25 and started playing around with Sky Atmosphere. When comparing the TimeOfDay\_Default level with the Unreal documentation and my own machine I noticed that my sun disk is tiny compared to… --- ## [How do I get rid of double reflection with SkyAtmosphere](https://forums.unrealengine.com/t/how-do-i-get-rid-of-double-reflection-with-skyatmosphere/474764)
**Author:** [@D\_Icarus](https://forums.unrealengine.com/u/D_Icarus)\ **Replies:** 3\ **Last updated:** [July 8, 2022, 3:34pm UTC](https://forums.unrealengine.com/t/how-do-i-get-rid-of-double-reflection-with-skyatmosphere/474764 "2022-07-08T15:34:41Z")
Hello everyone, I am trying out the 4.26 previews; specifically the SkyAtmosphere and WaterBodyOcean. I noticed something when trying to make the sun bigger by changing the Source Angle. The reflection that SkyAtmosph… --- ## [Big sized Sun disk correct Specular Reflection on Water Material](https://forums.unrealengine.com/t/big-sized-sun-disk-correct-specular-reflection-on-water-material/479118)
**Author:** [@Andron\_Collider](https://forums.unrealengine.com/u/Andron_Collider)\ **Replies:** 3\ **Last updated:** [July 8, 2022, 3:33pm UTC](https://forums.unrealengine.com/t/big-sized-sun-disk-correct-specular-reflection-on-water-material/479118 "2022-07-08T15:33:12Z")
Is there any way to get correct photorealistic specular reflection from big sized Sun disk (Directional light with Source angle = 10.0) on the water made with new Ocean Water Actor and its built-in water material? --- ## [SkyTimeOfDay / SkyDomeMesh look blocky on mobile](https://forums.unrealengine.com/t/skytimeofday-skydomemesh-look-blocky-on-mobile/471766)
**Author:** [@xcyde](https://forums.unrealengine.com/u/xcyde)\ **Replies:** 1\ **Last updated:** [November 8, 2021, 8:01am UTC](https://forums.unrealengine.com/t/skytimeofday-skydomemesh-look-blocky-on-mobile/471766 "2021-11-08T08:01:57Z")
We’re trying to use the new SunSky-Actor and the material M\_SkyTimeOfDay (Engine Content) for the SkyDome. We’re deploying to Windows and Android (ES31) at the moment. In the Android the materials looks very strange. I… --- ## [Point Light does not light when I place a sun and sky light..](https://forums.unrealengine.com/t/point-light-does-not-light-when-i-place-a-sun-and-sky-light/490261)
**Author:** [@Ezzeddine.ali](https://forums.unrealengine.com/u/Ezzeddine.ali)\ **Replies:** 0\ **Last updated:** [October 25, 2021, 11:01pm UTC](https://forums.unrealengine.com/t/point-light-does-not-light-when-i-place-a-sun-and-sky-light/490261 "2021-10-25T23:01:55Z")
Once I create a project from the AEC template and place any kind of light such as point or spot, these lights do not light at all. If I remove the sunsky light, then they do light. Any fix to have these light with the su… --- ## [How can I reduce the sun reflection size?](https://forums.unrealengine.com/t/how-can-i-reduce-the-sun-reflection-size/436953)
**Author:** [@Compguy321](https://forums.unrealengine.com/u/Compguy321)\ **Replies:** 1\ **Last updated:** [October 23, 2021, 2:03pm UTC](https://forums.unrealengine.com/t/how-can-i-reduce-the-sun-reflection-size/436953 "2021-10-23T14:03:30Z")
I am making a level on Pluto for Planetary Settlers, but I cannot figure out how to reduce the sun reflection from the sky box. You can barely make out the sun here, but the reflection off the solar panel roof is “bl… --- ## [Impossible to change sun direction](https://forums.unrealengine.com/t/impossible-to-change-sun-direction/488383)
**Author:** [@SHorntail](https://forums.unrealengine.com/u/SHorntail)\ **Replies:** 2\ **Last updated:** [September 4, 2021, 2:45pm UTC](https://forums.unrealengine.com/t/impossible-to-change-sun-direction/488383 "2021-09-04T14:45:15Z")
From the documentation: “It’s possible to manually change rotational values of the Directional Light in the SunSky Actor. However, when you change other settings that affect other parts of the SunSky Actor, your manually… --- ## [Update time on sun and sky actor](https://forums.unrealengine.com/t/update-time-on-sun-and-sky-actor/486181)
**Author:** [@Mikeymore](https://forums.unrealengine.com/u/Mikeymore)\ **Replies:** 3\ **Last updated:** [July 15, 2021, 1:40pm UTC](https://forums.unrealengine.com/t/update-time-on-sun-and-sky-actor/486181 "2021-07-15T13:40:53Z")
Hi all, I have placed a Skysun actor in my scene. I have 2 arrow actors in my level and on hover I will update the suntime. I have setup a level BP, but it isn’t working right now… I want to set dynamically the suntim… --- ## [Sun Disk color](https://forums.unrealengine.com/t/sun-disk-color/481687)
**Author:** [@VirtualSurrealism](https://forums.unrealengine.com/u/VirtualSurrealism)\ **Replies:** 0\ **Last updated:** [April 10, 2021, 6:34am UTC](https://forums.unrealengine.com/t/sun-disk-color/481687 "2021-04-10T06:34:43Z")
Hi, Is there a way to make Sun Disk color more saturated, i want a deep orange sundisk at the dusk but it looks glowing yellow instead. Thanks --- ## [Unable to Remove Sun Billboard From Atmospheric Sun Directional Light with Blueprints](https://forums.unrealengine.com/t/unable-to-remove-sun-billboard-from-atmospheric-sun-directional-light-with-blueprints/479535)
**Author:** [@mz490464](https://forums.unrealengine.com/u/mz490464)\ **Replies:** 0\ **Last updated:** [February 28, 2021, 4:48am UTC](https://forums.unrealengine.com/t/unable-to-remove-sun-billboard-from-atmospheric-sun-directional-light-with-blueprints/479535 "2021-02-28T04:48:55Z")
I’ve tried a number of tactics to remove the sun (directional light with atmospheric sun light enabled) image at runtime from a scene with blueprints, but have had no success in Unreal 4.26. Another post I read disclose… --- ## [Change Sky Atmosphere Latitude/Longitu](https://forums.unrealengine.com/t/change-sky-atmosphere-latitude-longitu/477312)
**Author:** [@wnguyen98](https://forums.unrealengine.com/u/wnguyen98)\ **Replies:** 0\ **Last updated:** [January 15, 2021, 3:17pm UTC](https://forums.unrealengine.com/t/change-sky-atmosphere-latitude-longitu/477312 "2021-01-15T15:17:28Z")
Hi, I’m looking to be able to change the position of the sun through the Sky Atmosphere Actor at run time. I don’t want to use the BP Sun Position Calculator because I want the physically based sky actor aka the Sky Atm… --- ## [Can you remove horizon shading from SkyAtmosphere when viewed from space?](https://forums.unrealengine.com/t/can-you-remove-horizon-shading-from-skyatmosphere-when-viewed-from-space/474861)
**Author:** [@ricosuave413](https://forums.unrealengine.com/u/ricosuave413)\ **Replies:** 0\ **Last updated:** [November 22, 2020, 9:43pm UTC](https://forums.unrealengine.com/t/can-you-remove-horizon-shading-from-skyatmosphere-when-viewed-from-space/474861 "2020-11-22T21:43:37Z")
I experiencing a lighting issue using the SkyAtmosphere system. I’m view my planet mesh from “space”. When I angle my directional light to hit the southern hemisphere, the lighting acts as if the sun were under the horiz… --- ## [Blocking sunlight from atmosphere / changing sun disk image](https://forums.unrealengine.com/t/blocking-sunlight-from-atmosphere-changing-sun-disk-image/470780)
**Author:** [@gaugefsh](https://forums.unrealengine.com/u/gaugefsh)\ **Replies:** 0\ **Last updated:** [September 4, 2020, 12:27am UTC](https://forums.unrealengine.com/t/blocking-sunlight-from-atmosphere-changing-sun-disk-image/470780 "2020-09-04T00:27:43Z")
Hello! I am new to unreal to please be specific if you can. I am trying to simulate a large space station closing around the sun itself as seen from earth. To do this, I will either need a physical sun object that I can… --- ## [how to change the scale of the sun, without effecting other levels?](https://forums.unrealengine.com/t/how-to-change-the-scale-of-the-sun-without-effecting-other-levels/470058)
**Author:** [@anonymous\_user\_8c607a35](https://forums.unrealengine.com/u/anonymous_user_8c607a35)\ **Replies:** 0\ **Last updated:** [August 20, 2020, 10:14am UTC](https://forums.unrealengine.com/t/how-to-change-the-scale-of-the-sun-without-effecting-other-levels/470058 "2020-08-20T10:14:16Z")
Im trying to recreate Nacht der Untoten, fro COD World At War, i want to change the sun to represent the moon, but the moon in nacht is giant for some reason, so i want to change the scale to represent it. when i change … --- ## [Sun not reflected on material](https://forums.unrealengine.com/t/sun-not-reflected-on-material/469357)
**Author:** [@Bachkippe](https://forums.unrealengine.com/u/Bachkippe)\ **Replies:** 3\ **Last updated:** [August 7, 2020, 5:46pm UTC](https://forums.unrealengine.com/t/sun-not-reflected-on-material/469357 "2020-08-07T17:46:49Z")
Hi folks, for some reason I can’t get any specular reflections on my translucent material. You might think there is something wrong with the material parameters, nodes etc. but the material preview shows the material ex… --- ## [Using an initial Sun and Sky setup. Any added spot, point or directional lights are having no effect. Is this a known Sun and Sky thing?](https://forums.unrealengine.com/t/using-an-initial-sun-and-sky-setup-any-added-spot-point-or-directional-lights-are-having-no-effect-is-this-a-known-sun-and-sky-thing/469335)
**Author:** [@SJP](https://forums.unrealengine.com/u/SJP)\ **Replies:** 1\ **Last updated:** [August 7, 2020, 1:07pm UTC](https://forums.unrealengine.com/t/using-an-initial-sun-and-sky-setup-any-added-spot-point-or-directional-lights-are-having-no-effect-is-this-a-known-sun-and-sky-thing/469335 "2020-08-07T13:07:17Z")
Obviously, I’d like to have Sun and Sky, but still be able to add some art directed lights in spots, assuming that’s viable… --- ## [Sun and Sky Position Resets with light bake](https://forums.unrealengine.com/t/sun-and-sky-position-resets-with-light-bake/468873)
**Author:** [@bfes](https://forums.unrealengine.com/u/bfes)\ **Replies:** 0\ **Last updated:** [July 29, 2020, 9:15pm UTC](https://forums.unrealengine.com/t/sun-and-sky-position-resets-with-light-bake/468873 "2020-07-29T21:15:44Z")
I am dipping my toe into the Unreal waters for Archviz. I am creating a scene and I have run into two issues with lighting. My first question is, when I place a sun and sky system in my scene, and position the sun to g… --- ## [How do I get rid of blocky dynamic shadows?](https://forums.unrealengine.com/t/how-do-i-get-rid-of-blocky-dynamic-shadows/467437)
**Author:** [@NtinosFerret](https://forums.unrealengine.com/u/NtinosFerret)\ **Replies:** 1\ **Last updated:** [June 30, 2020, 6:26am UTC](https://forums.unrealengine.com/t/how-do-i-get-rid-of-blocky-dynamic-shadows/467437 "2020-06-30T06:26:43Z")
This is an example of how the same object can look good and bad in the same project and settings. These windows have fine looking shadows when they are on the building. However, if the sun’s angle changes, they turn to t… [Next page](https://forums.unrealengine.com/tag/sun/448.md?match_all_tags=true&page=1&tags%5B%5D=sun)