41 lines
1.4 KiB
Markdown
41 lines
1.4 KiB
Markdown
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#unity/日常积累
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# [Camera](https://docs.unity.cn/cn/current/ScriptReference/Camera.html).WorldToScreenPoint
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public [Vector3](https://docs.unity.cn/cn/current/ScriptReference/Vector3.html) WorldToScreenPoint ([Vector3](https://docs.unity.cn/cn/current/ScriptReference/Vector3.html) position);
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public [Vector3](https://docs.unity.cn/cn/current/ScriptReference/Vector3.html) WorldToScreenPoint ([Vector3](https://docs.unity.cn/cn/current/ScriptReference/Vector3.html) position, [Camera.MonoOrStereoscopicEye](https://docs.unity.cn/cn/current/ScriptReference/Camera.MonoOrStereoscopicEye.html) eye);
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## 参数
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eye
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可选参数，可用于指定要使用的眼睛变换。默认值为 Mono。
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## 描述
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将 `position` 从世界空间变换为屏幕空间。
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屏幕空间以像素定义。屏幕的左下角为 (0,0)，右上角 为 ([pixelWidth](https://docs.unity.cn/cn/current/ScriptReference/Camera-pixelWidth.html),[pixelHeight](https://docs.unity.cn/cn/current/ScriptReference/Camera-pixelHeight.html))。z 位置为与摄像机的距离，采用世界单位。
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``` cs
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using UnityEngine;
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using System.Collections;
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public class ExampleClass : MonoBehaviour
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{
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public Transform target;
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Camera cam;
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void Start()
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{
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cam = GetComponent<Camera>();
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}
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void Update()
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{
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Vector3 screenPos = cam.WorldToScreenPoint(target.position);
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Debug.Log("target is " + screenPos.x + " pixels from the left");
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}
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}
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```
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