# QuantisedMatrixHash(ref Matrix4x4, ref Hash128)

> Compute a Hash128 of a Matrix4x4.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine](/engine/6000.5/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

## QuantisedMatrixHash(Matrix4x4, Hash128)

```csharp
public static void QuantisedMatrixHash(ref Matrix4x4 value, ref Hash128 hash)
```

### Parameters

**** (\[Matrix4x4]\(/engine/6000.5/script-reference/unityengine/matrix4x4)): The Matrix4x4 to hash.**** (\[Hash128]\(/engine/6000.5/script-reference/unityengine/hash128)): The computed hash.

### Remarks

The Matrix4x4 is quantized before the hashing with a step of 0.0005.