# Is Babylonjs' skybox using Equi Angular Cubemap?

**URL:** <https://forum.babylonjs.com/t/is-babylonjs-skybox-using-equi-angular-cubemap/39724>\
**Category:** Questions\
**Created:** [April 8, 2023, 2:31pm UTC](https://forum.babylonjs.com/t/is-babylonjs-skybox-using-equi-angular-cubemap/39724 "2023-04-08T14:31:58Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![dalidaliW](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/dalidaliw/32/28108_2.png) [@dalidaliW](https://forum.babylonjs.com/u/dalidaliW)\
**Post date:** [April 8, 2023, 2:31pm UTC](https://forum.babylonjs.com/t/is-babylonjs-skybox-using-equi-angular-cubemap/39724/1 "2023-04-08T14:31:58Z")

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[Panorama to Cubemap (jaxry.github.io)](https://jaxry.github.io/panorama-to-cubemap/)

Eight corners can be clearly seen in the panorama converted by [Panorama to Cubemap (jaxry.github.io)](https://jaxry.github.io/panorama-to-cubemap/) .  
The transition is not very smooth

```auto
    skyboxMaterial.reflectionTexture = new BABYLON.CubeTexture("textures/TropicalSunnyDay", scene);
    skyboxMaterial.reflectionTexture.coordinatesMode = BABYLON.Texture.SKYBOX_MODE;

```

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**Author:** ![carolhmj](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/carolhmj/32/25918_2.png) [@carolhmj](https://forum.babylonjs.com/u/carolhmj)\
**Post date:** [April 10, 2023, 1:56pm UTC](https://forum.babylonjs.com/t/is-babylonjs-skybox-using-equi-angular-cubemap/39724/2 "2023-04-10T13:56:23Z")

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cc @sebavan

From the code comments here, it seems to be inverse cubic: [Babylon.js/texture.ts at master · BabylonJS/Babylon.js (github.com)](https://github.com/BabylonJS/Babylon.js/blob/master/packages/dev/core/src/Materials/Textures/texture.ts#L158)

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**Author:** ![sebavan](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/sebavan/32/57_2.png) [@sebavan](https://forum.babylonjs.com/u/sebavan)\
**Post date:** [April 11, 2023, 9:15pm UTC](https://forum.babylonjs.com/t/is-babylonjs-skybox-using-equi-angular-cubemap/39724/3 "2023-04-11T21:15:34Z")

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you should be able to use coordinate mode FIXED\_EQUIRECTANGULAR\_MIRRORED\_MODE with a 360 picture.

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**Author:** ![Deltakosh](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/deltakosh/32/26635_2.png) [@Deltakosh](https://forum.babylonjs.com/u/Deltakosh)\
**Post date:** [April 11, 2023, 9:41pm UTC](https://forum.babylonjs.com/t/is-babylonjs-skybox-using-equi-angular-cubemap/39724/5 "2023-04-11T21:41:49Z")

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Can you share a repro in the PG. I have hard time figuring out what is the issue

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<div class="post-metadata">

**Author:** ![dalidaliW](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/dalidaliw/32/28108_2.png) [@dalidaliW](https://forum.babylonjs.com/u/dalidaliW)\
**Post date:** [April 12, 2023, 2:08am UTC](https://forum.babylonjs.com/t/is-babylonjs-skybox-using-equi-angular-cubemap/39724/6 "2023-04-12T02:08:08Z")

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![image](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/c/9/c9ed5a3b216d10b5b48440bfc6dabbfdc87a134f.jpeg)  
I have re implemented the conversion function locally through Electron, and now the display of the Sky Box is normal