# UpdateShaderCallback

Type alias · category: Other

Source: https://github.com/playcanvas/engine/blob/970d89f6d3bc6667f4e1f88153abd6e7e82ed52c/src/scene/materials/standard-material.js#L157

Callback used by [StandardMaterial#onUpdateShader](https://api.playcanvas.com/engine/classes/StandardMaterial.md#onupdateshader).

```ts
type UpdateShaderCallback = (options: StandardMaterialOptions) => StandardMaterialOptions
```