# \#light **URL:** https://forum.babylonjs.com/tag/light/159.md [Latest](https://forum.babylonjs.com/latest.md) · [Categories](https://forum.babylonjs.com/categories.md) · [Tags](https://forum.babylonjs.com/tags.md) --- ## [Babylon.js Irradiance Volume / Probe Volume Research Demo](https://forum.babylonjs.com/t/babylon-js-irradiance-volume-probe-volume-research-demo/63650)
**Author:** [@Celeste-twinkle](https://forum.babylonjs.com/u/Celeste-twinkle)\ **Replies:** 1\ **Last updated:** [June 17, 2026, 8:41pm UTC](https://forum.babylonjs.com/t/babylon-js-irradiance-volume-probe-volume-research-demo/63650 "2026-06-17T20:41:11Z")
Hi everyone, I have been working on a rough demo project exploring irradiance volumes / probe-volume-style baked indirect lighting for Babylon.js. GitHub repository: Live pages: Home Babylon.js LPV Research B… --- ## [Remove a mesh from light.excludedMeshes](https://forum.babylonjs.com/t/remove-a-mesh-from-light-excludedmeshes/62436)
**Author:** [@devAxeon](https://forum.babylonjs.com/u/devAxeon)\ **Replies:** 2\ **Last updated:** [February 16, 2026, 8:31am UTC](https://forum.babylonjs.com/t/remove-a-mesh-from-light-excludedmeshes/62436 "2026-02-16T08:31:40Z")
Hello ! When removing a mesh from the excludedMeshes array of a light, it doesn’t work, the mesh keeps unlighted Can be currently fixed by toggling the light with setEnable false/true Here a PG: --- ## [ClusteredLightContainer does not have a compatible scene that uses a right-handed coordinate system](https://forum.babylonjs.com/t/clusteredlightcontainer-does-not-have-a-compatible-scene-that-uses-a-right-handed-coordinate-system/61754)
**Author:** [@1114257133](https://forum.babylonjs.com/u/1114257133)\ **Replies:** 4\ **Last updated:** [December 18, 2025, 1:42pm UTC](https://forum.babylonjs.com/t/clusteredlightcontainer-does-not-have-a-compatible-scene-that-uses-a-right-handed-coordinate-system/61754 "2025-12-18T13:42:36Z")
https://playground.babylonjs.com/?inspectorv2=true#CSCJO2#36 In my scene, I use a right-handed coordinate system (I need to maintain consistency with models from Blender and Three.js). When using ClusteredLightContai… --- ## [Exporting a scene containing a light node leads to a corrupt GLB file](https://forum.babylonjs.com/t/exporting-a-scene-containing-a-light-node-leads-to-a-corrupt-glb-file/58837)
**Author:** [@mysticfall](https://forum.babylonjs.com/u/mysticfall)\ **Replies:** 4\ **Last updated:** [June 6, 2025, 2:03am UTC](https://forum.babylonjs.com/t/exporting-a-scene-containing-a-light-node-leads-to-a-corrupt-glb-file/58837 "2025-06-06T02:03:47Z")
It appears that exporting a scene with a light object as GLB results in an invalid file. I skimmed through the relevant part of the codebase, and I suspect it may insert null values into the transform attributes when att… --- ## [IES light disappears after clicking texture in inspector](https://forum.babylonjs.com/t/ies-light-disappears-after-clicking-texture-in-inspector/57461)
**Author:** [@kzhsw](https://forum.babylonjs.com/u/kzhsw)\ **Replies:** 5\ **Last updated:** [March 29, 2025, 12:55am UTC](https://forum.babylonjs.com/t/ies-light-disappears-after-clicking-texture-in-inspector/57461 "2025-03-29T00:55:53Z")
Version: 8.0.1 Playground: https://playground.babylonjs.com/#UIAXAU#29 Steps to reproduce: Open playground Open inspector Click the 2nd texture Expected: Rendering does not change Actual: Light does not light --- ## [Dynamic camera position](https://forum.babylonjs.com/t/dynamic-camera-position/56285)
**Author:** [@viktor](https://forum.babylonjs.com/u/viktor)\ **Replies:** 1\ **Last updated:** [January 29, 2025, 11:05am UTC](https://forum.babylonjs.com/t/dynamic-camera-position/56285 "2025-01-29T11:05:59Z")
Hello, I have a question, how do I make the light come from the camera? Everywhere in the documentation there are examples with dynamic changes in the intensity, color, and position of light, but nowhere is it specified … --- ## [shadowGenerators serialized without light](https://forum.babylonjs.com/t/shadowgenerators-serialized-without-light/56134)
**Author:** [@kzhsw](https://forum.babylonjs.com/u/kzhsw)\ **Replies:** 3\ **Last updated:** [January 24, 2025, 3:28am UTC](https://forum.babylonjs.com/t/shadowgenerators-serialized-without-light/56134 "2025-01-24T03:28:11Z")
Background Version: 7.44.1 Engine: any Browser: any Desc There is currently no doNotSerialize option for a ShadowGenerator, and a ShadowGenerator would be serialized even if the light of it marked with doNotSerialize. … --- ## [scene.removeLight(light) vs light.dispose()](https://forum.babylonjs.com/t/scene-removelight-light-vs-light-dispose/55002)
**Author:** [@onekit](https://forum.babylonjs.com/u/onekit)\ **Replies:** 2\ **Last updated:** [November 26, 2024, 2:13pm UTC](https://forum.babylonjs.com/t/scene-removelight-light-vs-light-dispose/55002 "2024-11-26T14:13:52Z")
There are two ways to remove a light source from a scene. One is to call the dispose() method on the light object: this.light = new BABYLON.Light() this.light.dispose() The other way is to pass the light source as a pa… --- ## [New infinite plane light type](https://forum.babylonjs.com/t/new-infinite-plane-light-type/53869)
**Author:** [@Charge](https://forum.babylonjs.com/u/Charge)\ **Replies:** 3\ **Last updated:** [October 2, 2024, 8:24pm UTC](https://forum.babylonjs.com/t/new-infinite-plane-light-type/53869 "2024-10-02T20:24:16Z")
Hi, I was wondering how feasible a new light type would be. Specifically, a light consisting of an infinite plane with a direction and falloff. It would be defined with a position and direction and would have a falloff… --- ## [Export light from blender](https://forum.babylonjs.com/t/export-light-from-blender/52557)
**Author:** [@Kostya\_Kharitoniuk](https://forum.babylonjs.com/u/Kostya_Kharitoniuk)\ **Replies:** 3\ **Last updated:** [August 6, 2024, 1:08am UTC](https://forum.babylonjs.com/t/export-light-from-blender/52557 "2024-08-06T01:08:58Z")
Hi all, can someone point me whats im doing wrong, trying to export test scene from blender with 1 light and in sandbox i didnt see it this is how it looks in blender export settings how it looks in sandb… --- ## [Conditions affecting the direction and length of a shadow](https://forum.babylonjs.com/t/conditions-affecting-the-direction-and-length-of-a-shadow/52341)
**Author:** [@zhy](https://forum.babylonjs.com/u/zhy)\ **Replies:** 3\ **Last updated:** [July 29, 2024, 2:45am UTC](https://forum.babylonjs.com/t/conditions-affecting-the-direction-and-length-of-a-shadow/52341 "2024-07-29T02:45:26Z")
https://doc.babylonjs.com/features/introductionToFeatures/chap7/shadows Setting its position will affect the direction and length of any created shadows. I realized that the position doesn’t affect the direction and … --- ## [New Animation change light direction.x](https://forum.babylonjs.com/t/new-animation-change-light-direction-x/51697)
**Author:** [@lxq100](https://forum.babylonjs.com/u/lxq100)\ **Replies:** 5\ **Last updated:** [July 1, 2024, 4:22pm UTC](https://forum.babylonjs.com/t/new-animation-change-light-direction-x/51697 "2024-07-01T16:22:16Z")
I create new Animation to change direction.x of directionalLight， but direction.x of directionalLight is not change. How do I get over this? --- ## [Is there any way adding hemispherical light or Environment light without affecting the blackness of the shadow](https://forum.babylonjs.com/t/is-there-any-way-adding-hemispherical-light-or-environment-light-without-affecting-the-blackness-of-the-shadow/49422)
**Author:** [@heyefeng229](https://forum.babylonjs.com/u/heyefeng229)\ **Replies:** 27\ **Last updated:** [June 24, 2024, 6:17am UTC](https://forum.babylonjs.com/t/is-there-any-way-adding-hemispherical-light-or-environment-light-without-affecting-the-blackness-of-the-shadow/49422 "2024-06-24T06:17:01Z")
Hello.In the process of making a large 3D scene, it is often necessary to have a directional light, and add a hemisphere light or Environment light to light the place where the directional light does not shine, such as t… --- ## [Volumetric spotlight](https://forum.babylonjs.com/t/volumetric-spotlight/50006)
**Author:** [@waverider404](https://forum.babylonjs.com/u/waverider404)\ **Replies:** 5\ **Last updated:** [April 29, 2024, 9:42pm UTC](https://forum.babylonjs.com/t/volumetric-spotlight/50006 "2024-04-29T21:42:49Z")
https://playground.babylonjs.com/#2L8UDE#1 --- ## [Lights intensity on PBR Material](https://forum.babylonjs.com/t/lights-intensity-on-pbr-material/46647)
**Author:** [@cmeterreau](https://forum.babylonjs.com/u/cmeterreau)\ **Replies:** 3\ **Last updated:** [January 3, 2024, 9:47am UTC](https://forum.babylonjs.com/t/lights-intensity-on-pbr-material/46647 "2024-01-03T09:47:06Z")
Hi everyone, I’m reaching out to you with a question about lighting that has me a bit puzzled. Here are two scenarios: Case 1: I have a basic scene with a ground that has no texture. When I add a light with an intensit… --- ## [Imported gltf Model from Blender (+Material) behaves weird with lighting](https://forum.babylonjs.com/t/imported-gltf-model-from-blender-material-behaves-weird-with-lighting/44634)
**Author:** [@Shirhix](https://forum.babylonjs.com/u/Shirhix)\ **Replies:** 7\ **Last updated:** [October 5, 2023, 4:23pm UTC](https://forum.babylonjs.com/t/imported-gltf-model-from-blender-material-behaves-weird-with-lighting/44634 "2023-10-05T16:23:03Z")
Hi, I’m currently working on making the scene look good, so dynamic lighting is what I wanted to implement. I’ve noticed that meshes imported from blender and their materials are lit up on their own. Only when I use a … --- ## [PointLight does not work inside of a cube](https://forum.babylonjs.com/t/pointlight-does-not-work-inside-of-a-cube/44016)
**Author:** [@Michal\_Mihalik](https://forum.babylonjs.com/u/Michal_Mihalik)\ **Replies:** 2\ **Last updated:** [September 11, 2023, 1:04pm UTC](https://forum.babylonjs.com/t/pointlight-does-not-work-inside-of-a-cube/44016 "2023-09-11T13:04:39Z")
If you place a PointLight inside of the cube, the cube won’t be lighted from inside. Workarround 1: use different light e.g. HemisphericLight Workarround 2: use several PointLights outside of the cube: if you point t… --- ## [How can I match the icon's direction of spotLight's lightGizmo in rightHandedSystem?](https://forum.babylonjs.com/t/how-can-i-match-the-icons-direction-of-spotlights-lightgizmo-in-righthandedsystem/42929)
**Author:** [@UNIT](https://forum.babylonjs.com/u/UNIT)\ **Replies:** 8\ **Last updated:** [August 3, 2023, 2:27pm UTC](https://forum.babylonjs.com/t/how-can-i-match-the-icons-direction-of-spotlights-lightgizmo-in-righthandedsystem/42929 "2023-08-03T14:27:50Z")
Hi :slight\_smile: I’m using rightHandedSystem in my project. (can’t change this setting because of a few reasons) When I activate the lightGizmo of spotLIght and rotate the light with rotationGizmo, the icon of light… --- ## [Exponential shadows are not occluded (visible through the objects)](https://forum.babylonjs.com/t/exponential-shadows-are-not-occluded-visible-through-the-objects/42342)
**Author:** [@vlayd16](https://forum.babylonjs.com/u/vlayd16)\ **Replies:** 1\ **Last updated:** [July 12, 2023, 7:52am UTC](https://forum.babylonjs.com/t/exponential-shadows-are-not-occluded-visible-through-the-objects/42342 "2023-07-12T07:52:24Z")
Hello, I’m having an issue happening only with Exponential Shadow Map without a parent with changing position and rotation. Basically, my shadows are visible through the mesh. Once I set the parent to mesh that changin… --- ## [Light Frustum Size is Dynamic?](https://forum.babylonjs.com/t/light-frustum-size-is-dynamic/41587)
**Author:** [@arcman7](https://forum.babylonjs.com/u/arcman7)\ **Replies:** 2\ **Last updated:** [June 15, 2023, 9:08pm UTC](https://forum.babylonjs.com/t/light-frustum-size-is-dynamic/41587 "2023-06-15T21:08:38Z")
For a scene generating shadows from a single light source, the light frustum seems to change it’s size dynamically based on the largest area that contains all used shadow casters for the given light. Is that correct? So… --- ## [Light adjusting "Gizmo"](https://forum.babylonjs.com/t/light-adjusting-gizmo/41046)
**Author:** [@bigrig](https://forum.babylonjs.com/u/bigrig)\ **Replies:** 2\ **Last updated:** [May 23, 2023, 7:05pm UTC](https://forum.babylonjs.com/t/light-adjusting-gizmo/41046 "2023-05-23T19:05:53Z")
It was driving me crazy not to be able to adjust light pos/dir easily - so created this PG, in case useful to anyone else: Lots of improvements possible, but does the basic job. --- ## [Exclude a class of materials from light. How to or best way?](https://forum.babylonjs.com/t/exclude-a-class-of-materials-from-light-how-to-or-best-way/40858)
**Author:** [@mawa](https://forum.babylonjs.com/u/mawa)\ **Replies:** 2\ **Last updated:** [May 16, 2023, 2:18pm UTC](https://forum.babylonjs.com/t/exclude-a-class-of-materials-from-light-how-to-or-best-way/40858 "2023-05-16T14:18:03Z")
Dears, I have a stupid question. Well, I guess it’s stupid but thought I might ask anyway :wink: Case is simple: I have an hemi light on which the user can set the intensity to adjust ambient light. I want to exclude … --- ## [Any ideas why glowLayer is turning White?](https://forum.babylonjs.com/t/any-ideas-why-glowlayer-is-turning-white/40644)
**Author:** [@Benjythebee](https://forum.babylonjs.com/u/Benjythebee)\ **Replies:** 7\ **Last updated:** [May 12, 2023, 6:38am UTC](https://forum.babylonjs.com/t/any-ideas-why-glowlayer-is-turning-white/40644 "2023-05-12T06:38:28Z")
Hi team, I have this playground where I have a giant robot and a cube covered with textures. My issue is with glowlayer turning white on the Robot whereas it is pink-ish (as it should be) on the cube. Both models have… --- ## [I am trying babylonjs in an angular app. I want to add multiple camera .But it is taking default camera always. Below I have shared my code screenshot](https://forum.babylonjs.com/t/i-am-trying-babylonjs-in-an-angular-app-i-want-to-add-multiple-camera-but-it-is-taking-default-camera-always-below-i-have-shared-my-code-screenshot/40250)
**Author:** [@Sanjeeb\_Kumar](https://forum.babylonjs.com/u/Sanjeeb_Kumar)\ **Replies:** 2\ **Last updated:** [April 26, 2023, 2:53pm UTC](https://forum.babylonjs.com/t/i-am-trying-babylonjs-in-an-angular-app-i-want-to-add-multiple-camera-but-it-is-taking-default-camera-always-below-i-have-shared-my-code-screenshot/40250 "2023-04-26T14:53:54Z")
Hi , I am trying to add camera in the angular app with babylonjs . but it is always taking the default camera . I’m not able to set the camera. initial Camera setup Trying to change the camera conditionally but its … --- ## [Moving SpotLight with it's projectionTexture?](https://forum.babylonjs.com/t/moving-spotlight-with-its-projectiontexture/39703)
**Author:** [@ChirodSummerset](https://forum.babylonjs.com/u/ChirodSummerset)\ **Replies:** 8\ **Last updated:** [April 10, 2023, 9:35am UTC](https://forum.babylonjs.com/t/moving-spotlight-with-its-projectiontexture/39703 "2023-04-10T09:35:03Z")
Hi. I’m trying to make some scanning light effect, which a group of light line moves across the Y axis and lights up the center object. My code is like this: const scanLight1 = new SpotLight('scanner1', new Vec… --- ## [light.includedOnlyMeshes for instances](https://forum.babylonjs.com/t/light-includedonlymeshes-for-instances/38704)
**Author:** [@Thunderstorm](https://forum.babylonjs.com/u/Thunderstorm)\ **Replies:** 3\ **Last updated:** [March 3, 2023, 4:54pm UTC](https://forum.babylonjs.com/t/light-includedonlymeshes-for-instances/38704 "2023-03-03T16:54:24Z")
Would it be possible to allow instances of meshes to work with include/exclude meshes for lights? I’m working on an old browser game (atmoburn.com), currently converting our pseudo-3D map to WebGL using Babylon. A unive… --- ## [Lazer system like in concert](https://forum.babylonjs.com/t/lazer-system-like-in-concert/38502)
**Author:** [@Darius](https://forum.babylonjs.com/u/Darius)\ **Replies:** 4\ **Last updated:** [February 24, 2023, 6:54pm UTC](https://forum.babylonjs.com/t/lazer-system-like-in-concert/38502 "2023-02-24T18:54:07Z")
Hello everyone, I’m wondering if someone has an idea of how can I make lazer system like those we see in concerts (cf. the image). But with not using any light. :upside\_down\_face: --- ## [Light intesity for node material](https://forum.babylonjs.com/t/light-intesity-for-node-material/38143)
**Author:** [@VasilyPolonsky](https://forum.babylonjs.com/u/VasilyPolonsky)\ **Replies:** 2\ **Last updated:** [February 13, 2023, 2:19pm UTC](https://forum.babylonjs.com/t/light-intesity-for-node-material/38143 "2023-02-13T14:19:56Z")
Hello guys, I need help your with node materials, I want to create a node material for grass and then apply a wind effect to it. I have some standard materials with albedo texture and bump, directional light, and some m… --- ## [Lightmap baker runtime](https://forum.babylonjs.com/t/lightmap-baker-runtime/37548)
**Author:** [@waverider404](https://forum.babylonjs.com/u/waverider404)\ **Replies:** 2\ **Last updated:** [January 20, 2023, 10:15pm UTC](https://forum.babylonjs.com/t/lightmap-baker-runtime/37548 "2023-01-20T22:15:37Z")
Curious🤔 does babylonjs have a runtime lightmap baker? --- ## [LightGizmo rootMesh can not trigger pointerpick](https://forum.babylonjs.com/t/lightgizmo-rootmesh-can-not-trigger-pointerpick/36800)
**Author:** [@Aze](https://forum.babylonjs.com/u/Aze)\ **Replies:** 4\ **Last updated:** [January 5, 2023, 2:33am UTC](https://forum.babylonjs.com/t/lightgizmo-rootmesh-can-not-trigger-pointerpick/36800 "2023-01-05T02:33:41Z")
PG: https://playground.babylonjs.com/#AKM6YC#1 [Next page](https://forum.babylonjs.com/tag/light/159.md?match_all_tags=true&page=1&tags%5B%5D=light)