屏幕截图_007
发表于2018-08-19
在游戏中经常会将游戏画面的截屏分享给好友，利用各平台所提供的SDK可以完美的实现分享功能，不过要截屏游戏画面，还是需要自己敲两行代码才行~
我的做法是利用一个截屏专用的相机，先设置好相机的参数（Size，TargetTexture等 ···），将需要截屏的画面调整到相机前，调整好位置和大小，若截屏尺寸有多个，可以动态设置相机的参数，还有一点，记得要设置相机的Culling Mask~
然后，上代码 ~ 三五行搞定
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class ScreenshotManager : MonoBehaviour
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[SerializeField] Camera screenshotCamera;
[SerializeField] RawImage screenshotImage;
public void Awake()
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//Test
StartCoroutine(Screenshot());
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public IEnumerator Screenshot()
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screenshotCamera.gameObject.SetActive(true);
yield return new WaitForEndOfFrame();
//screenshotImage.texture = ScreenshotByScreenSize();
screenshotImage.texture = ScreenshotByRenderTexture(screenshotCamera.targetTexture);
yield return new WaitForEndOfFrame();
screenshotCamera.gameObject.SetActive(false);
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//截取屏幕，返回Texture2D
public Texture2D ScreenshotByScreenSize()
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//创建Texture2D（尺寸设置为屏幕大小）
Texture2D screenshotTex = new Texture2D(Screen.width, Screen.height, TextureFormat.RGB24, false);
//绘制一个矩形，设置顶点，长宽（尺寸设置为屏幕大小）
Rect screenshotRect = new Rect(0, 0, Screen.width, Screen.height);
//读取屏幕的局部像素信息保存在贴图中
screenshotTex.ReadPixels(screenshotRect, 0, 0);
screenshotTex.Apply();
//返回值
return screenshotTex;
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//根据相机RenderTexture尺寸，截取屏幕，返回Texture2D
public Texture2D ScreenshotByRenderTexture(RenderTexture renderTexture)
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//RenderTexture接收渲染相机结果
RenderTexture activerRender = renderTexture;
RenderTexture.active = activerRender;
//创建Texture2D，绘制矩形（尺寸为给定RenderTexture大小）
Texture2D screenshotTex = new Texture2D(activerRender.width, activerRender.height);
Rect screenshotRect = new Rect(0, 0, activerRender.width, activerRender.height);
//获取Texture2D数据
screenshotTex.ReadPixels(screenshotRect, 0, 0);
screenshotTex.Apply();
//
return screenshotTex;
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