1,工程

2 脚本 Capture.cs
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System.IO;
public class Capture : MonoBehaviour
{
	public Camera mainCam; //待截图的目标摄像机
	RenderTexture rt;  //声明一个截图时候用的中间变量 
	Texture2D t2d;
	int num = 0;  //截图计数
	//public GameObject pl;  //一个调试用的板子
	void Start()
	{
		t2d = new Texture2D(800, 600, TextureFormat.RGB24, false);
		rt = new RenderTexture(800, 600, 24);
		mainCam.targetTexture = rt;
	}
	void Update()
	{
		//按下空格键来截图
		if (Input.GetKeyDown(KeyCode.Space))
		{
			//将目标摄像机的图像显示到一个板子上
			//pl.GetComponent<Renderer>().material.mainTexture = rt;
			//截图到t2d中
			RenderTexture.active = rt;
			t2d.ReadPixels(new Rect(0, 0, rt.width, rt.height), 0, 0);
			t2d.Apply();
			RenderTexture.active = null;
			//将图片保存起来
			byte[] byt = t2d.EncodeToJPG();
			File.WriteAllBytes(Application.dataPath +"/Images" + "//" + num.ToString() + ".jpg", byt);
			Debug.Log("当前截图序号为:" + num.ToString());
			num++;
		}
	}
}
3 运行后在工程的game窗口点击空格,怎会把虚拟相机拍摄的图片保存到Images文件夹中

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