# Checking normals of a GLTF model

**URL:** <https://community.cesium.com/t/checking-normals-of-a-gltf-model/4188>\
**Category:** CesiumJS\
**Created:** [June 3, 2016, 8:09am UTC](https://community.cesium.com/t/checking-normals-of-a-gltf-model/4188 "2016-06-03T08:09:27Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![kredik](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/kredik/32/14000_2.png) [@kredik](https://community.cesium.com/u/kredik)\
**Post date:** [June 3, 2016, 8:09am UTC](https://community.cesium.com/t/checking-normals-of-a-gltf-model/4188/1 "2016-06-03T08:09:27Z")

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Hi,

I would like to check if normals are good in a GLTF file loaded in Cesium.

I’m wondering if it is possible to use Cesium.createTangentSpaceDebugPrimitive on a gltf model loaded with something like :

```
var model = scene.primitives.add(Cesium.Model.fromGltf({

    url : '[http://xxxx](http://xxxx/)'

}));

```

Any help appreciated,

Fred.

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**Author:** ![hannah](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/hannah/32/4509_2.png) [@hannah](https://community.cesium.com/u/hannah)\
**Post date:** [June 3, 2016, 1:12pm UTC](https://community.cesium.com/t/checking-normals-of-a-gltf-model/4188/2 "2016-06-03T13:12:35Z")

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Hi Fred,

Sorry, I don’t think there is a way to visualize the model normals in Cesium at this time

Best,

Hannah