Camera.SetStereoViewMatrix

# [Camera](https://docs.unity3d.com/cn/2019.4/ScriptReference/Camera.html).SetStereoViewMatrix

public void **SetStereoViewMatrix** ([Camera.StereoscopicEye](https://docs.unity3d.com/cn/2019.4/ScriptReference/Camera.StereoscopicEye.html) **eye**, [Matrix4x4](https://docs.unity3d.com/cn/2019.4/ScriptReference/Matrix4x4.html) **matrix**);

## 参数

| eye    | 指定要设置的立体视图矩阵。 |
| -------- | ---------------------------- |
| matrix | 要设置的矩阵。             |

## 描述

为特定立体眼睛设置自定义视图矩阵。

在大多数情况下，您应该使用 VR SDK 提供的投影矩阵，以确保准确的立体渲染。但是，在某些情况下，重写视图矩阵以实现特定效果可能比较有用。例如，要在 VR 中实现双筒望远镜效果，就需要使用自定义视图矩阵。

如果已设置自定义视图矩阵，摄像机将分析该视图矩阵，以确定能否安全地使用单通道剔除处理，还是必须为每只眼睛进行单独的剔除操作。使用 [Camera.areVRStereoViewMatricesWithinSingleCullTolerance](https://docs.unity3d.com/cn/2019.4/ScriptReference/Camera-areVRStereoViewMatricesWithinSingleCullTolerance.html) 可以确定将使用的剔除方法。

调用 [Camera.ResetStereoViewMatrices](https://docs.unity3d.com/cn/2019.4/ScriptReference/Camera.ResetStereoViewMatrices.html) 会将摄像机还原为使用 VR SDK 提供的视图矩阵。注意，在您调用 [Camera.ResetStereoViewMatrices](https://docs.unity3d.com/cn/2019.4/ScriptReference/Camera.ResetStereoViewMatrices.html) 之前，不会应用 [Camera.stereoSeparation](https://docs.unity3d.com/cn/2019.4/ScriptReference/Camera-stereoSeparation.html)。

另请参阅：[Camera.ResetStereoViewMatrices](https://docs.unity3d.com/cn/2019.4/ScriptReference/Camera.ResetStereoViewMatrices.html)、[Camera.stereoSeparation](https://docs.unity3d.com/cn/2019.4/ScriptReference/Camera-stereoSeparation.html)、[Camera.areVRStereoViewMatricesWithinSingleCullTolerance](https://docs.unity3d.com/cn/2019.4/ScriptReference/Camera-areVRStereoViewMatricesWithinSingleCullTolerance.html)

```
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    // Use this for initialization
    void Start()
    {
    }

// Update is called once per frame
    void Update()
    {
        Camera cam = GetComponent<Camera>();

Matrix4x4 viewL = cam.worldToCameraMatrix;
        Matrix4x4 viewR = cam.worldToCameraMatrix;

viewL[12] += 0.011f;
        viewR[12] -= 0.011f;
        cam.SetStereoViewMatrix(Camera.StereoscopicEye.Left, viewL);
        cam.SetStereoViewMatrix(Camera.StereoscopicEye.Right, viewR);
    }
}
```