# Babylon Sandbox not keeping lightmaps on export

**URL:** <https://forum.babylonjs.com/t/babylon-sandbox-not-keeping-lightmaps-on-export/19013>\
**Category:** Questions\
**Created:** [March 9, 2021, 8:38am UTC](https://forum.babylonjs.com/t/babylon-sandbox-not-keeping-lightmaps-on-export/19013 "2021-03-09T08:38:54Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Yehoshua\_Viles](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/yehoshua_viles/32/14719_2.png) [@Yehoshua\_Viles](https://forum.babylonjs.com/u/Yehoshua_Viles)\
**Post date:** [March 9, 2021, 8:38am UTC](https://forum.babylonjs.com/t/babylon-sandbox-not-keeping-lightmaps-on-export/19013/1 "2021-03-09T08:38:54Z")

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Hello,

When a lightmap is added to a model in Sandbox and the model is exported, the lightmap is not kept. Is this not available?

And is there any way to embed lightmaps in a GLB with any other exporter?

Thanks

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**Author:** ![Evgeni\_Popov](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/evgeni_popov/32/4432_2.png) [@Evgeni\_Popov](https://forum.babylonjs.com/u/Evgeni_Popov)\
**Post date:** [March 9, 2021, 10:55am UTC](https://forum.babylonjs.com/t/babylon-sandbox-not-keeping-lightmaps-on-export/19013/2 "2021-03-09T10:55:27Z")

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Welcome aboard!

To my knowledge, lightmaps are not supported in glb/gltf files yet. I think some discussions are taking place on Khronos side to add an extension about that but it’s not done yet.

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**Author:** ![labris](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/labris/32/12576_2.png) [@labris](https://forum.babylonjs.com/u/labris)\
**Post date:** [March 9, 2021, 11:22am UTC](https://forum.babylonjs.com/t/babylon-sandbox-not-keeping-lightmaps-on-export/19013/3 "2021-03-09T11:22:22Z")

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At the moment lightmaps are not supported in GLTF specs. Below there are several forum links which could be helpful.

- [From Blender to Babylon: lightmap workflow tutorial](https://forum.babylonjs.com/t/from-blender-to-babylon-lightmap-workflow-tutorial/106)
- [Blender to Sandbox workflow and Lightmaps Export in .glTF](https://forum.babylonjs.com/t/blender-to-sandbox-workflow-and-lightmaps-export-in-gltf/17625)
- [How many types of Lightmaps are there to use & how to link them in Maya so that those LightMaps should come Properly in .Babylon or .gltf?](https://forum.babylonjs.com/t/how-many-types-of-lightmaps-are-there-to-use-how-to-link-them-in-maya-so-that-those-lightmaps-should-come-properly-in-babylon-or-gltf/12323)

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**Author:** ![Vinc3r](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/vinc3r/32/25340_2.png) [@Vinc3r](https://forum.babylonjs.com/u/Vinc3r)\
**Post date:** [March 9, 2021, 2:24pm UTC](https://forum.babylonjs.com/t/babylon-sandbox-not-keeping-lightmaps-on-export/19013/4 "2021-03-09T14:24:58Z")

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Also, a playground example: [https://playground.babylonjs.com/#ADPQFC#9](https://playground.babylonjs.com/#ADPQFC#9) (available through this [doc page](https://doc.babylonjs.com/toolsAndResources/assetLibraries/availableMeshes)).