# CalculateObliqueMatrix(Vector4)

> Calculates and returns oblique near-plane projection matrix.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine](/engine/6000.6/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public Matrix4x4 CalculateObliqueMatrix(Vector4 clipPlane)
```

### Parameters

**** (\[Vector4]\(/engine/6000.6/script-reference/unityengine/vector4)): Vector4 that describes a clip plane.

### Returns

| Type                                                                  | Description                           |
| --------------------------------------------------------------------- | ------------------------------------- |
| [Matrix4x4](/engine/6000.6/script-reference/unityengine/matrix4x4.md) | Oblique near-plane projection matrix. |

### Remarks

Given a clip plane vector, this function returns camera's projection matrix which has this clip plane set as its near plane.