Unity实现截屏以及根据相机画面截图

在游戏开发和软件开发中，经常需要截图的功能，分带ui的截图和不带ui的截图功能。代码如下：

using system.collections;
using system.collections.generic;
using unityengine;
 
public static class screenshotforcamera{
 
 public static void capturescreen(string _path = null)
 {
 if (_path == null)
 _path = "screenshot.png";
 
 application.capturescreenshot(_path, 0);
 }
 
 public static texture2d capturescreen(rect rect, bool _iscreatephoto = false, string _path = null)
 {
 // 先创建一个的空纹理，大小可根据实现需要来设置 
 texture2d screenshot = new texture2d((int)rect.width, (int)rect.height, textureformat.rgb24, false);
 
 // 读取屏幕像素信息并存储为纹理数据， 
 screenshot.readpixels(rect, 0, 0);
 screenshot.apply();
 
 // 然后将这些纹理数据，成一个png图片文件 
 if (_iscreatephoto)
 {
 if(_path == null)
 _path = application.datapath + "/screenshot.png";
 
 byte[] bytes = screenshot.encodetopng();
 string filename = _path;
 system.io.file.writeallbytes(filename, bytes);
 debug.log(string.format("截屏了一张图片: {0}", filename));
 }
 
 // 最后，我返回这个texture2d对象，这样我们直接，所这个截图图示在游戏中，当然这个根据自己的需求的。 
 return screenshot;
 }
 
 //
 public static texture2d capturecamera(ref camera _camera, rect _rect, int _destx, int _desty, bool _iscreatephoto = false, string _path = null)
 {
 rendertexture rendertexture = new rendertexture((int)_rect.width, (int)_rect.height, 24, rendertextureformat.argb32);
 _camera.targettexture = rendertexture;
 _camera.render();
 
 // 激活这个rendertexture, 并从中中读取像素
 rendertexture.active = _camera.targettexture;
 texture2d screenshot = new texture2d((int)_rect.width, (int)_rect.height, textureformat.argb32, false);
 screenshot.readpixels(_rect, _destx, _desty); //从（_destx,_desty）坐标开始读取_rect大小的图片
 screenshot.apply();
 
 //重置参数
 //_camera.targettexture = null;
 rendertexture.active = null;
 //gameobject.destroy(rendertexture);
 
 //生成png图片
 if (_iscreatephoto)
 {
 if (_path == null)
 _path = application.datapath + "/screenshot.png";
 
 byte[] bytes = screenshot.encodetopng();
 string filename = _path;
 system.io.file.writeallbytes(filename, bytes);
 debug.log(string.format("截屏了一张照片: {0}", filename));
 }
 
 return screenshot;
 }
}

小编再为大家分享一段：unity实现截屏功能，希望可以帮到大家

public class screenshot : monobehaviour 
{

 void onscreenshotclick()
 {
 //得到当前系统时间
 system.datetime now = system.datetime.now;
 string times = now.tostring();
 //去掉前后空格
 times = times.trim();
 //将斜杠替换成横杠
 times = times.replace("/", "-");

 string filename = "arscreenshot" + times + ".png";
 //判断该平台是否为安卓平台
 if (application.platform == runtimeplatform.android)
 {
 //参数依次为 屏幕宽度 屏幕高度 纹理格式 是否使用映射
 texture2d texture = new texture2d(screen.width, screen.height, textureformat.rgb24, false);
 //读取贴图
 texture.readpixels(new rect(0, 0, screen.width, screen.height), 0, 0);
 //应用截屏
 texture.apply();
 //将对象序列化
 byte[] bytes = texture.encodetopng();
 //设定存储到的手机文件夹路径
 string destination = "/sdcard/dcim/screenshots";
 //如果不存在该文件夹
 if (!directory.exists(destination))
 {
 //创建该文件夹
 directory.createdirectory(destination);
 }
 string pathsave = destination + "/" + filename;
 file.writeallbytes(pathsave, bytes);
 }
 }
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。