# View matrix not passed to shader when using ShaderMaterial **URL:** \ **Category:** Questions\ **Tags:** shader, shader-material\ **Created:** [July 3, 2023, 8:44pm UTC](https://forum.babylonjs.com/t/view-matrix-not-passed-to-shader-when-using-shadermaterial/42126 "2023-07-03T20:44:18Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![johannesugb](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/johannesugb/32/33361_2.png) [@johannesugb](https://forum.babylonjs.com/u/johannesugb)\ **Post date:** [July 3, 2023, 8:44pm UTC](https://forum.babylonjs.com/t/view-matrix-not-passed-to-shader-when-using-shadermaterial/42126/1 "2023-07-03T20:44:18Z")
I’m writing custom shaders and trying to get the matrices into shaders. It works just fine for `worldViewProjection` but not for `view`. As far as I can tell, all the values of `view` are just `0.0`. But according to the [Building Shaders With Babylon.js](https://www.smashingmagazine.com/2016/11/building-shaders-with-babylon-js/) article, I read it that all the uniform matrices would be set by Babylon.js: > `BABYLON.ShaderMaterial` can also handle the following matrices for you: > > - `world`, > - `view`, > - `projection`, > - `worldView`, > - `worldViewProjection`. > > No need for math anymore. For instance, each time you execute `sphere.rotation.y += 0.05`, the `world` matrix of the sphere will be generated for you and transmitted to the GPU. In the following, I post a minimal example of the problematic source code. It only produces the correct result if line #59 is commented-in, i.e., this one: ```js planeMaterial.setMatrix("view", camera.getViewMatrix()); ``` but if it is commented-out, the plane is just black, which is not what I would expect. ```js Custom Shaders... view not working ``` ---
**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:** [July 4, 2023, 9:12am UTC](https://forum.babylonjs.com/t/view-matrix-not-passed-to-shader-when-using-shadermaterial/42126/2 "2023-07-04T09:12:29Z")
> [@johannesugb](#): > > ```auto > ground.material = planeMaterial; > > ``` You should assign `shaderMaterial ` instead. `planeMaterial` is not constructed correctly, the array of uniforms is not passed to the constructor, so a default array is used (`["worldViewProjection"]`), and this array does not contain the `view` matrix.