Camera.ViewportToWorldPoint 视窗转世界位置

# [Camera](Camera.html).ViewportToWorldPoint 视窗转世界位置

function *ViewportToWorldPoint* (*position* : [Vector3](../Vector3/Vector3.html)) : [Vector3](../Vector3/Vector3.html)

*Description* 描述

Transforms position from viewport space into world space.

从视窗空间到世界空间的变换位置。

Viewport space is normalized and relative to the camera. The bottom-left of
the camera is (0,0); the top-right is (1,1). The z position is in world units
from the camera.

视口空间是归一化的并相对于相机的，相机的左下为（0,0）；右上是（1,1）；Z 的位置是以世界单位衡量的到相机的距离。

Note that it transforms a x-y screen position, into a x-y-z position in 3D
space.

请注意它是变换一个 x-y 屏幕位置到一个 3D 空间的 x-y-z 位置。

You provide the function with a vector where the x-y components of the vector
are the screen coordinates and the z component is the distance of the resulting
plane from the camera.

这个函数带有在屏幕坐标的 x-y 组件向量，并且 z 组件是在从相机产生的平面的距离。

* [C#](#)
* [JavaScript](#)

```
using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
	void OnDrawGizmosSelected() {
		Vector3 p = camera.ViewportToWorldPoint(new Vector3(1, 1, camera.nearClipPlane));
		Gizmos.color = Color.yellow;
		Gizmos.DrawSphere(p, 0.1F);
	}
}
```

```
// Draw a yellow sphere at top-right corner of the near plane
// for the selected camera in the scene view.
//在近裁剪面的右上角绘制一个黄色的球，针对在场景视图中选中的相机
function OnDrawGizmosSelected () {
	var p : Vector3 = camera.ViewportToWorldPoint (Vector3 (1,1, camera.nearClipPlane));
	Gizmos.color = Color.yellow;
	Gizmos.DrawSphere (p, 0.1);
}
```