# \#normal **URL:** https://forums.unrealengine.com/tag/normal/3244.md [Latest](https://forums.unrealengine.com/latest.md) · [Categories](https://forums.unrealengine.com/categories.md) · [Tags](https://forums.unrealengine.com/tags.md) --- ## [In UE5.5, under sunnset lighting, the grassland turned black ](https://forums.unrealengine.com/t/in-ue5-5-under-sunnset-lighting-the-grassland-turned-black/2706725)
**Author:** [@Snowikl](https://forums.unrealengine.com/u/Snowikl)\ **Replies:** 1\ **Last updated:** [March 28, 2026, 3:33am UTC](https://forums.unrealengine.com/t/in-ue5-5-under-sunnset-lighting-the-grassland-turned-black/2706725 "2026-03-28T03:33:01Z")
This picture is that I placed a rect light under the surface, it can improve the black problem. This picture is the situation when I turn off the rect light This is the asset I am using. I can’t solve this pr… --- ## [UE5.5中在落日打光下，植被发黑的问题，我不知道怎么解决，求助。 ](https://forums.unrealengine.com/t/ue5-5/2706726)
**Author:** [@Snowikl](https://forums.unrealengine.com/u/Snowikl)\ **Replies:** 2\ **Last updated:** [March 28, 2026, 3:29am UTC](https://forums.unrealengine.com/t/ue5-5/2706726 "2026-03-28T03:29:13Z")
上面这张图是我在地面下加了个rect light，能改善一点发黑问题。 上面这张图是关闭rect light的情况。 上面这张图是我使用的资产。 这个问题已经困扰我几天了，不知道怎么修复。是资产的问题？材质的问题？还是我打光的问题？ cast shadow我尝试关了也还是会有发黑问题。 --- ## [help me !! Eyelid normals flipping issue with Maya Live Link in Unreal Engine ](https://forums.unrealengine.com/t/help-me-eyelid-normals-flipping-issue-with-maya-live-link-in-unreal-engine/2652470)
**Author:** [@Pivotmasta](https://forums.unrealengine.com/u/Pivotmasta)\ **Replies:** 2\ **Last updated:** [September 6, 2025, 1:05am UTC](https://forums.unrealengine.com/t/help-me-eyelid-normals-flipping-issue-with-maya-live-link-in-unreal-engine/2652470 "2025-09-06T01:05:35Z")
Hello, I’m working with a character rigged in Maya and connected to Unreal Engine through Live Link. The issue I’m seeing is that when the character blinks (closing eyelids), some polygons on the eyelids appear dark, as… --- ## [how do I invert my normal map inside U4?](https://forums.unrealengine.com/t/how-do-i-invert-my-normal-map-inside-u4/289172)
**Author:** [@Michail](https://forums.unrealengine.com/u/Michail)\ **Replies:** 5\ **Last updated:** [July 9, 2025, 7:33am UTC](https://forums.unrealengine.com/t/how-do-i-invert-my-normal-map-inside-u4/289172 "2025-07-09T07:33:11Z")
stuck here, I knew there was an option in udk to change it but cant seem to find it in U4… Help? :slight\_smile: Thanks --- ## [Difference in points and normals from shaders and raycasts](https://forums.unrealengine.com/t/difference-in-points-and-normals-from-shaders-and-raycasts/2580005)
**Author:** [@dhashuml](https://forums.unrealengine.com/u/dhashuml)\ **Replies:** 0\ **Last updated:** [June 27, 2025, 3:07am UTC](https://forums.unrealengine.com/t/difference-in-points-and-normals-from-shaders-and-raycasts/2580005 "2025-06-27T03:07:09Z")
I’m capturing depth and normal image, then reconstructing them into the points and normals, but there is a offset in the point, and normals (offset in case of uneven landscape, fine with flat landscape). Im using custom… --- ## [Decal Blend Mode Normal Not Working When Spawned by BP](https://forums.unrealengine.com/t/decal-blend-mode-normal-not-working-when-spawned-by-bp/305701)
**Author:** [@SVR33](https://forums.unrealengine.com/u/SVR33)\ **Replies:** 6\ **Last updated:** [April 26, 2025, 9:48pm UTC](https://forums.unrealengine.com/t/decal-blend-mode-normal-not-working-when-spawned-by-bp/305701 "2025-04-26T21:48:56Z")
I’m trying to spawn a decal (with blend mode ‘normal’) below my character’s feet but the lighting is all wrong. Below you can see the content example M\_Decal\_Normal placed in the level by hand and a few instances of the… --- ## [Material Doesn't Work on Custom Static Mesh](https://forums.unrealengine.com/t/material-doesnt-work-on-custom-static-mesh/486001)
**Author:** [@carter.mania](https://forums.unrealengine.com/u/carter.mania)\ **Replies:** 10\ **Last updated:** [July 8, 2024, 2:09pm UTC](https://forums.unrealengine.com/t/material-doesnt-work-on-custom-static-mesh/486001 "2024-07-08T14:09:25Z")
Unreal version 4.26.2 QUESTION: How do I get existing Materials (with normal & roughness) to work on my custom static mesh (.FBX)? Something is configured incorrectly on the mesh that causes it to lose normal & roughn… --- ## [Normal map/ baking problem](https://forums.unrealengine.com/t/normal-map-baking-problem/381767)
**Author:** [@Yiluya](https://forums.unrealengine.com/u/Yiluya)\ **Replies:** 1\ **Last updated:** [February 8, 2024, 3:41am UTC](https://forums.unrealengine.com/t/normal-map-baking-problem/381767 "2024-02-08T03:41:19Z")
Hey there! I’m quite new to Unreal and have a problem with my normal map. I created a high-poly statue with Zbrush and baked it to a los-poly version using Maya 2016. The bake looks fine in Maya, but when I export it to… --- ## [Bugs in the character mesh caused by the normal map](https://forums.unrealengine.com/t/bugs-in-the-character-mesh-caused-by-the-normal-map/1673545)
**Author:** [@TetrisBR](https://forums.unrealengine.com/u/TetrisBR)\ **Replies:** 0\ **Last updated:** [February 8, 2024, 2:52am UTC](https://forums.unrealengine.com/t/bugs-in-the-character-mesh-caused-by-the-normal-map/1673545 "2024-02-08T02:52:42Z")
Hello! guys! Does anyone understand what is happening to my character? I’m new to UE5 and I’m learning, but it’s been very difficult because it’s giving me several problems that I can’t solve. I’m having problems with so… --- ## [How can I do the same as Composite Texture inside a Material Graph](https://forums.unrealengine.com/t/how-can-i-do-the-same-as-composite-texture-inside-a-material-graph/1663448)
**Author:** [@gvnnp](https://forums.unrealengine.com/u/gvnnp)\ **Replies:** 0\ **Last updated:** [February 3, 2024, 7:03pm UTC](https://forums.unrealengine.com/t/how-can-i-do-the-same-as-composite-texture-inside-a-material-graph/1663448 "2024-02-03T19:03:50Z")
So I basically would like to compose testures at runtime in a material like the image shows --- ## [Normal Plus Opacity](https://forums.unrealengine.com/t/normal-plus-opacity/407463)
**Author:** [@anonymous\_user\_6ee703af](https://forums.unrealengine.com/u/anonymous_user_6ee703af)\ **Replies:** 4\ **Last updated:** [September 1, 2023, 7:45am UTC](https://forums.unrealengine.com/t/normal-plus-opacity/407463 "2023-09-01T07:45:54Z")
I was told that my glass map should be plugged into opacity into the material slot with my texture, but enabling opacity turns off normal map and messing with the transparency options has inverted my map to the point whe… --- ## [Unreal engine 5.1 bug after update.](https://forums.unrealengine.com/t/unreal-engine-5-1-bug-after-update/695199)
**Author:** [@zpghost](https://forums.unrealengine.com/u/zpghost)\ **Replies:** 0\ **Last updated:** [November 20, 2022, 5:17pm UTC](https://forums.unrealengine.com/t/unreal-engine-5-1-bug-after-update/695199 "2022-11-20T17:17:34Z")
Urgently need help, after updating the normal maps they give a bug Ue 5.1: Ue 5.1: Delete normal map in material Ue 5.03 --- ## [Get an object to align to another object beyond 90degrees](https://forums.unrealengine.com/t/get-an-object-to-align-to-another-object-beyond-90degrees/484621)
**Author:** [@A\_Dunwoody](https://forums.unrealengine.com/u/A_Dunwoody)\ **Replies:** 0\ **Last updated:** [June 9, 2021, 1:19am UTC](https://forums.unrealengine.com/t/get-an-object-to-align-to-another-object-beyond-90degrees/484621 "2021-06-09T01:19:02Z")
Hi everyone! This is my first post, hopefully I explain everything well. So I’m just messing around with UE4 trying to sharpen my skills. My current thing I’m messing around with is a hoverboard thing, help me get better… --- ## [Custom rotator for Normals?](https://forums.unrealengine.com/t/custom-rotator-for-normals/484083)
**Author:** [@DDemon](https://forums.unrealengine.com/u/DDemon)\ **Replies:** 3\ **Last updated:** [May 29, 2021, 12:43pm UTC](https://forums.unrealengine.com/t/custom-rotator-for-normals/484083 "2021-05-29T12:43:56Z")
I am trying to rotate my normals with a Custom Rotator for my dynamical Instance static meshes (I have a function that gives the desired angle of rotation to them) but they come out wrong as if the engine adds another di… --- ## [How to get a vector that's horizontal to another vector and is pointing in a specific direction?](https://forums.unrealengine.com/t/how-to-get-a-vector-thats-horizontal-to-another-vector-and-is-pointing-in-a-specific-direction/482881)
**Author:** [@mindsurferdev](https://forums.unrealengine.com/u/mindsurferdev)\ **Replies:** 3\ **Last updated:** [May 4, 2021, 4:25pm UTC](https://forums.unrealengine.com/t/how-to-get-a-vector-thats-horizontal-to-another-vector-and-is-pointing-in-a-specific-direction/482881 "2021-05-04T16:25:06Z")
Ok, so I’m trying to get a vector horizontal to the ground that my character is standing on AND I want it to be pointing in the direction the character is looking. I’m currently getting the right vector of the hit norma… --- ## [Normal map is inverted when using mirrored geometry](https://forums.unrealengine.com/t/normal-map-is-inverted-when-using-mirrored-geometry/339443)
**Author:** [@Nebularium](https://forums.unrealengine.com/u/Nebularium)\ **Replies:** 6\ **Last updated:** [December 5, 2020, 9:44pm UTC](https://forums.unrealengine.com/t/normal-map-is-inverted-when-using-mirrored-geometry/339443 "2020-12-05T21:44:10Z")
Sculpted model, retopped low poly version, rendered out tangent space normal map in Xnormal (with -Y as it should be). After rendered it out, cloned leg and arm to another side and attached it to main body mesh. Impo… --- ## [Landscape line-trace hits underground?](https://forums.unrealengine.com/t/landscape-line-trace-hits-underground/475212)
**Author:** [@3S\_Interactive](https://forums.unrealengine.com/u/3S_Interactive)\ **Replies:** 0\ **Last updated:** [November 30, 2020, 10:58am UTC](https://forums.unrealengine.com/t/landscape-line-trace-hits-underground/475212 "2020-11-30T10:58:21Z")
I’m trying to ignore line-trace hits to the underside of a landscape so my agents don’t become trapped underground. Is there a way to somehow make the landscape one-sided (positive normals only) so line-traces from belo… --- ## [How do i apply a normal only decal?](https://forums.unrealengine.com/t/how-do-i-apply-a-normal-only-decal/380108)
**Author:** [@DomSewell](https://forums.unrealengine.com/u/DomSewell)\ **Replies:** 2\ **Last updated:** [November 27, 2020, 11:25am UTC](https://forums.unrealengine.com/t/how-do-i-apply-a-normal-only-decal/380108 "2020-11-27T11:25:29Z")
Hi guys, So I’m just getting in to using decals and they work pretty well but i have stumbled across an issue I’m attempting to use a decal to apply some surface cracks to a road therefore im using the dbuffer transluc… --- ## [Rotating instance around normal problem](https://forums.unrealengine.com/t/rotating-instance-around-normal-problem/474838)
**Author:** [@JAMBALAIJA2](https://forums.unrealengine.com/u/JAMBALAIJA2)\ **Replies:** 2\ **Last updated:** [November 22, 2020, 12:50pm UTC](https://forums.unrealengine.com/t/rotating-instance-around-normal-problem/474838 "2020-11-22T12:50:31Z")
link text Im trying to rotate instance around impact normal and it works when rotation of actor is 0. But problems come when i rotate actor. From link you can see what happens. How could i rotate instance around normal… --- ## [Keep "pressed" appearance focused when button is pressed](https://forums.unrealengine.com/t/keep-pressed-appearance-focused-when-button-is-pressed/384710)
**Author:** [@anonymous\_user\_ab9546bd1](https://forums.unrealengine.com/u/anonymous_user_ab9546bd1)\ **Replies:** 12\ **Last updated:** [September 2, 2020, 6:04am UTC](https://forums.unrealengine.com/t/keep-pressed-appearance-focused-when-button-is-pressed/384710 "2020-09-02T06:04:56Z")
I’ve added some buttons to my Widget Hierarchy and I have changed their appearance/design in their respective categories: Normal, Hovered, Pressed. My question is. I want the appearance of the button to keep its “Presse… --- ## [Material normal data exported to Lightmass cant have negative component](https://forums.unrealengine.com/t/material-normal-data-exported-to-lightmass-cant-have-negative-component/464564)
**Author:** [@yellowstar\_ep](https://forums.unrealengine.com/u/yellowstar_ep)\ **Replies:** 0\ **Last updated:** [May 2, 2020, 3:16pm UTC](https://forums.unrealengine.com/t/material-normal-data-exported-to-lightmass-cant-have-negative-component/464564 "2020-05-02T15:16:15Z")
When using normal map for static lighting, UE4 Editor will generate the normal data (normal map) for a material using rendertarget, and export it to Lightmass. It seems that the rendertarget will clamp negative component… --- ## [Blending normal maps with different UV channels without DDX and DDY](https://forums.unrealengine.com/t/blending-normal-maps-with-different-uv-channels-without-ddx-and-ddy/461197)
**Author:** [@i\_susanin](https://forums.unrealengine.com/u/i_susanin)\ **Replies:** 0\ **Last updated:** [February 1, 2020, 5:22pm UTC](https://forums.unrealengine.com/t/blending-normal-maps-with-different-uv-channels-without-ddx-and-ddy/461197 "2020-02-01T17:22:41Z")
Hello! I am looking for a way to blend two normal maps in different UV channels without DDX and DDY nodes. Standard solution is using the combination of DeriveTangentBasis and BlendAngleCorrectedNormals, but DeriveTangen… --- ## [STMesh SKMesh Smooth Group different](https://forums.unrealengine.com/t/stmesh-skmesh-smooth-group-different/460803)
**Author:** [@white\_Wings](https://forums.unrealengine.com/u/white_Wings)\ **Replies:** 1\ **Last updated:** [January 21, 2020, 10:21am UTC](https://forums.unrealengine.com/t/stmesh-skmesh-smooth-group-different/460803 "2020-01-21T10:21:51Z")
Hello, I have the following problems in importing my skeleton mesh object. After importing the skeleton mesh object, it seems that the smooth group is not displayed correctly, but the same static mesh object is completel… --- ## [Scene Texture - World Normal on Decals](https://forums.unrealengine.com/t/scene-texture-world-normal-on-decals/449859)
**Author:** [@Blockmind](https://forums.unrealengine.com/u/Blockmind)\ **Replies:** 3\ **Last updated:** [November 28, 2019, 7:17am UTC](https://forums.unrealengine.com/t/scene-texture-world-normal-on-decals/449859 "2019-11-28T07:17:16Z")
Hello, I used to mask single axis on deferred decal materials with “scene texture” node which is set as “world normal”. And then I isolate any axis by using a mask node with R, G or B selected ( every color for one axis… --- ## [World Aligned Material Normal only showing on 4 sides of mesh instead of all 6.](https://forums.unrealengine.com/t/world-aligned-material-normal-only-showing-on-4-sides-of-mesh-instead-of-all-6/339738)
**Author:** [@kabirpunde](https://forums.unrealengine.com/u/kabirpunde)\ **Replies:** 5\ **Last updated:** [August 31, 2019, 7:49pm UTC](https://forums.unrealengine.com/t/world-aligned-material-normal-only-showing-on-4-sides-of-mesh-instead-of-all-6/339738 "2019-08-31T19:49:54Z")
Hey guys, For some reason I having an issue with my world aligned material. I have a modular wall piece I am using all over my level. It is a six sided mesh with all the vertex normals facing in the correct direction. A… --- ## [How to Rotate A Plane Normal 90 degree downward?](https://forums.unrealengine.com/t/how-to-rotate-a-plane-normal-90-degree-downward/452748)
**Author:** [@Jamesant8](https://forums.unrealengine.com/u/Jamesant8)\ **Replies:** 0\ **Last updated:** [July 24, 2019, 4:03am UTC](https://forums.unrealengine.com/t/how-to-rotate-a-plane-normal-90-degree-downward/452748 "2019-07-24T04:03:53Z")
Help! I can’t find a solution to rotate a plane normal 90 degree downward. To put it this way, what I’m trying to achieve is to let a actor slide downward on a angled plane. I can’t use plane constraint normal cause I’m… --- ## [incorrect geometry display (normal map)](https://forums.unrealengine.com/t/incorrect-geometry-display-normal-map/449488)
**Author:** [@petresco](https://forums.unrealengine.com/u/petresco)\ **Replies:** 0\ **Last updated:** [May 23, 2019, 7:33pm UTC](https://forums.unrealengine.com/t/incorrect-geometry-display-normal-map/449488 "2019-05-23T19:33:37Z")
what wrong with 4.22 ? I working with ue4 since 2016 , and have not problem like this , first scr from substance painter,second from ue4 (incorrect vertical white lines like my lowploy geometry topo) --- ## [360 Degree Motion](https://forums.unrealengine.com/t/360-degree-motion/446911)
**Author:** [@Timothy\_LeBlanc](https://forums.unrealengine.com/u/Timothy_LeBlanc)\ **Replies:** 2\ **Last updated:** [April 9, 2019, 3:25pm UTC](https://forums.unrealengine.com/t/360-degree-motion/446911 "2019-04-09T15:25:11Z")
Hello Unreal community! I have a question/problem that I need some help on. I know there have been other threads that discuss this or similar issues but I could never understand their solutions. I have set up a force sy… --- ## [why Unreal normal direction different form MAYA when import Alembic](https://forums.unrealengine.com/t/why-unreal-normal-direction-different-form-maya-when-import-alembic/444031)
**Author:** [@Anonymous\_adc0b19f45120001861651a44b02c711](https://forums.unrealengine.com/u/Anonymous_adc0b19f45120001861651a44b02c711)\ **Replies:** 1\ **Last updated:** [February 24, 2019, 8:55am UTC](https://forums.unrealengine.com/t/why-unreal-normal-direction-different-form-maya-when-import-alembic/444031 "2019-02-24T08:55:53Z")
Just like this. So the material that have fresnel node is look so strange. --- ## [How to enable the Flip Green Channel-option?](https://forums.unrealengine.com/t/how-to-enable-the-flip-green-channel-option/439552)
**Author:** [@Ratamahattata123](https://forums.unrealengine.com/u/Ratamahattata123)\ **Replies:** 2\ **Last updated:** [December 16, 2018, 8:29am UTC](https://forums.unrealengine.com/t/how-to-enable-the-flip-green-channel-option/439552 "2018-12-16T08:29:03Z")
Hey guys, I’m using sbsar-files from Substance Designer in Unreal, but I can’t flip the green channel, the option is greyed out. I’m wondering if it has something to do with using sbsar-files… I would be relieved if… [Next page](https://forums.unrealengine.com/tag/normal/3244.md?match_all_tags=true&page=1&tags%5B%5D=normal)