如題，需要將某個相機所看到的畫面儲存成圖片。

步驟大概是將相機看到的傳給rendertexture，然後傳給texture2d，然後儲存成圖片。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CameraShoot : MonoBehaviour {
    Camera secondCam;
	// Use this for initialization
	void Start () {
        secondCam = GameObject.Find("Camera").GetComponent<Camera>();
	}
	
	// Update is called once per frame
	void Update () {
        if (Input.GetKeyDown(KeyCode.Space)) {
            Fun(Camera.main,"MainCamera.png");
            Fun(secondCam, "SecondCamera.png");
        }
	}

    void Fun(Camera m_Camera,string filename) {
        RenderTexture rt = new RenderTexture(Screen.width, Screen.height, 16);
        m_Camera.targetTexture = rt;
        m_Camera.Render();

        RenderTexture.active = rt;
        Texture2D t = new Texture2D(Screen.width, Screen.height);
        t.ReadPixels(new Rect(0, 0, t.width, t.height),0,0);
        t.Apply();

        string path = Application.streamingAssetsPath + "/"+filename;
        System.IO.File.WriteAllBytes(path, t.EncodeToPNG());
    }
}
 

反正填0,16,24/32

我試了試0的時候結果是沒有顯示3d物體的

其他數值可以。