本文实例为大家分享了unity按住鼠标选取区域截图的具体代码，供大家参考，具体内容如下

private int capBeginX;private int capBeginY;private int capFinishX;private int capFinishY; public Image showImg; // Use this for initializationvoid Start () { } // Update is called once per frame void Update () { if (Input.GetMouseButtonDown (0)) { Vector3 mousePos = Input.mousePosition; Vector2 beginPos = new Vector2 (mousePos.x, mousePos.y); capBeginX = (int)mousePos.x; capBeginY = (int)mousePos.y; } if (Input.GetMouseButtonUp (0)) { Vector3 mousePos = Input.mousePosition; Vector2 finishPos = new Vector2 (mousePos.x, mousePos.y); capFinishX = (int)mousePos.x; capFinishY = (int)mousePos.y; //重新计算截取的位置 int capLeftX = (capBeginX < capFinishX) ? capBeginX : capFinishX; int capRightX = (capBeginX < capFinishX) ? capFinishX : capBeginX; int capLeftY = (capBeginY < capFinishY) ? capBeginY : capFinishY; int capRightY = (capBeginY < capFinishY) ? capFinishY : capBeginY; Rect rect=new Rect(capLeftX,capLeftY,capRightX,capRightY); StartCoroutine( Captrue (rect)); } } IEnumerator Captrue(Rect rect){ int t_width = Mathf.Abs (capFinishX - capBeginX); int t_length = Mathf.Abs (capFinishY - capBeginY); yield return new WaitForEndOfFrame (); Texture2D t = new Texture2D(t_width , t_length,TextureFormat.RGB24, true);//需要 正确设置好图片保存格式 t.ReadPixels(rect, 0, 0, false);//按照设定区域读取像素；注意是以左下角为原点读取 t.Apply(); byte[] byt = t.EncodeToPNG(); File.WriteAllBytes(Application.dataPath + Time.time + ".png", byt); Sprite target = Sprite.Create (t, new Rect(0, 0, t_width, t_length), Vector2.zer); showImg.sprite = target; }

小编为大家分享一段Unity实现截屏功能的代码，供大家参考：

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。