# Wrong normals of "Path3D"?

**URL:** <https://forum.babylonjs.com/t/wrong-normals-of-path3d/22521>\
**Category:** Questions\
**Created:** [July 21, 2021, 11:59am UTC](https://forum.babylonjs.com/t/wrong-normals-of-path3d/22521 "2021-07-21T11:59:31Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![TimT77](https://avatars.discourse-cdn.com/v4/letter/t/b2d939/32.png) [@TimT77](https://forum.babylonjs.com/u/TimT77)\
**Post date:** [July 21, 2021, 11:59am UTC](https://forum.babylonjs.com/t/wrong-normals-of-path3d/22521/1 "2021-07-21T11:59:31Z")

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Hi Guys!  
I played a little bit with “Path3D” and wonder whether the normals of my example are computed correctly: [https://playground.babylonjs.com/#2DLXYB#215](https://playground.babylonjs.com/#2DLXYB#215)

Should not be the normals of Path3D[1] and Path3D[3] like the green ones on the image?

 ![Path3D_normals](https://us1.discourse-cdn.com/flex024/uploads/babylonjs/original/3X/0/6/060466be822e3e2828d44b77054cbae09e7cefa3.png)

Best regards  
Tim

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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:** [July 21, 2021, 2:27pm UTC](https://forum.babylonjs.com/t/wrong-normals-of-path3d/22521/2 "2021-07-21T14:27:38Z")

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Maybe @JohnK would have a clue ? He is amazing with this 🙂

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**Author:** ![JohnK](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/johnk/32/26764_2.png) [@JohnK](https://forum.babylonjs.com/u/JohnK)\
**Post date:** [July 21, 2021, 4:06pm UTC](https://forum.babylonjs.com/t/wrong-normals-of-path3d/22521/3 "2021-07-21T16:06:14Z")

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What do you get when you use this method to display normals etc

> **[Display Tangent, Normal, and Binormal of a Path3D | Babylon.js Documentation](https://doc.babylonjs.com/toolsAndResources/utilities/Path3D)**
>
> Helpful code snippet for displaying helpful information about a Path3D object in Babylon.js.

You might also want to consider this [Path3D | Babylon.js Documentation](https://doc.babylonjs.com/divingDeeper/mesh/path3D#set-the-normal) and  
[Path3D | Babylon.js Documentation](https://doc.babylonjs.com/divingDeeper/mesh/path3D#normalization-and-tangent-alignment)