Unity3D的截屏函数

原文地址：http://docs.unity3d.com/Documentation/ScriptReference/Application.CaptureScreenshot.html

Application.CaptureScreenshot

静态函数

void CaptureScreenshot (String filename, int superSize = 0)

描述

抓取一张屏幕截图并以png格式保存为给定的文件名。

(译者：文件会被保存在/data/data/your.package.name/files/目录下)

如果文件已经存在，会覆盖。该函数不能用于web player中。

如果supersize这个参数大于1，会截出更高分辨率的图片，例如supersize设为4，那么截出的图会是普通情况下的4X4倍大，这个参数在需要打印截图的场合会很有用。

示例：

function OnMouseDown() 

{

 Application.CaptureScreenshot("Screenshot.png");

}

Unity中另外一种截屏的方法:

主要用到了Texture2D.ReadPixels()方法和Texture2D.EncodeToPng()方法

原文地址：http://docs.unity3d.com/Documentation/ScriptReference/WaitForEndOfFrame.html

JS代码：

import System.IO;function Start() {    UploadPNG();}function UploadPNG() {yield WaitForEndOfFrame(); var width = Screen.width; var height = Screen.height;var tex = new Texture2D( width, height, TextureFormat.RGB24, false ); tex.ReadPixels( Rect(0, 0, width, height), 0, 0 ); tex.Apply();var bytes = tex.EncodeToPNG();Destroy( tex );File.WriteAllBytes(Application.dataPath + "/../SavedScreen.png", bytes);var form = new WWWForm();form.AddField("frameCount", Time.frameCount.ToString());form.AddBinaryData("fileUpload",bytes);var w = WWW("http://localhost/cgi-bin/env.cgi?post", form);yield w; if (w.error != null)        print(w.error);    else        print("Finished Uploading Screenshot");    }

C#代码：

using System.IO;using UnityEngine;using System.Collections;public class example : MonoBehaviour {    void Start() {        UploadPNG();    }    IEnumerator UploadPNG() {        yield return new WaitForEndOfFrame();        int width = Screen.width;        int height = Screen.height;        Texture2D tex = new Texture2D(width, height, TextureFormat.RGB24, false);        tex.ReadPixels(new Rect(0, 0, width, height), 0, 0);        tex.Apply();        byte[] bytes = tex.EncodeToPNG();        Destroy(tex);        WWWForm form = new WWWForm();        form.AddField("frameCount", Time.frameCount.ToString());        form.AddBinaryData("fileUpload", bytes);        WWW w = new WWW("http://localhost/cgi-bin/env.cgi?post", form);        yield return w;        if (w.error != null)            print(w.error);        else            print("Finished Uploading Screenshot");    }}