Camera.WorldToScreenPoint

参数

描述

将 position 从世界空间变换为屏幕空间。

Screenspace is defined in pixels. The lower left pixel of the screen is (0,0). The upper right pixel of the screen is (screen width in pixels - 1, screen height in pixels - 1).

The z coordinate is the distance from the camera in world units.

If position is outside the Camera's viewing volume, Unity returns a screen position that's off-screen.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    public Transform target;
    Camera cam;

    void Start()
    {
        cam = GetComponent<Camera>();
    }

    void Update()
    {
        Vector3 screenPos = cam.WorldToScreenPoint(target.position);
        Debug.Log("target is " + screenPos.x + " pixels from the left");
    }
}