以下笔者整理了Unity的3种截屏功能，分享给大家：
- 截全屏
- 屏幕指定范围截屏
- 指定相机截屏
🟥 截全屏
使用方法：
将下方脚本挂载到物体上，Skode_StartCapture为截图方法。action_End 委托方法为截图完后执行。
using UnityEngine; using System.Collections; using System.IO; using System; public class Skode_ScreenCapture_Full : MonoBehaviour { [Tooltip("是否启用截图后将图片保存到下面路径的功能")] public bool saveUseable = false; [Tooltip("存储路径")] public string savePath = "/sdcard/Skode"; public GameObject[] shouldHideObj; /// <summary> /// 截图后的sprite /// </summary> [HideInInspector] public Sprite sprite; public void Skode_StartCapture(Action action_End = null) { CaptureStart(); StartCoroutine(OnScreenShot(action_End)); } public IEnumerator OnScreenShot(Action action_End = null) { //命名图片 202002261416527077 string currentTime = string.Format("{0:yyyyMMddHHmmssffff}", DateTime.Now); //截屏 Texture2D texture = new Texture2D(Screen.width, Screen.height, TextureFormat.RGB24, false); yield return new WaitForEndOfFrame(); texture.ReadPixels(new Rect(0, 0, Screen.width, Screen.height), 0, 0); texture.Apply(); sprite = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), new Vector2(0.5f, 0.5f)); if (saveUseable) { byte[] bytes = texture.EncodeToPNG(); //若没路径 创建 if (!Directory.Exists((savePath))) { Directory.CreateDirectory(savePath); } //保存路径 string path_save = savePath + "/IMG_" + currentTime; //写入图片 File.WriteAllBytes(path_save, bytes); } CaptureOver(); action_End?.Invoke(); } void CaptureStart() { if (shouldHideObj.Length > 0) { for (int i = 0; i < shouldHideObj.Length; i++) { shouldHideObj[i].SetActive(false); } } } void CaptureOver() { if (shouldHideObj.Length > 0) { for (int i = 0; i < shouldHideObj.Length; i++) { shouldHideObj[i].SetActive(true); } } } }
🟧 屏幕指定范围截图
使用方法：
将下方脚本挂载到物体上，Skode_StartCapture为截图方法。action_End 委托方法为截图完后执行。
using System; using System.Collections; using System.IO; using UnityEngine; public class Skode_ScreenCapture_Rect : MonoBehaviour { [Tooltip("是否启用截图后将图片保存到下面路径的功能")] public bool saveUseable = false; [Tooltip("存储路径")] public string savePath = "/sdcard/Skode"; public GameObject[] shouldHideObj; /// <summary> /// 截图后的sprite /// </summary> [HideInInspector] public Sprite sprite; public void Skode_StartCapture(Rect mRect, Action action_End = null) { CaptureStart(); StartCoroutine(CaptureByRect(mRect, action_End)); } /// <summary> /// 根据一个Rect类型来截取指定范围的屏幕, 左下角为(0,0) /// 例：StartCoroutine(CaptureByRect(new Rect(100, 150, 1024, 768))); /// 从左下角的横坐标100,纵坐标150坐标开始截图，宽度1024，高度768 /// </summary> public IEnumerator CaptureByRect(Rect mRect, Action action_End = null) { //等待渲染线程结束 yield return new WaitForEndOfFrame(); string currentTime = string.Format("{0:yyyyMMddHHmmssffff}", DateTime.Now); //初始化Texture2D, 大小可以根据需求更改 Texture2D mTexture = new Texture2D((int)mRect.width, (int)mRect.height, TextureFormat.RGB24, false); //读取屏幕像素信息并存储为纹理数据 mTexture.ReadPixels(mRect, 0, 0); //应用 mTexture.Apply(); sprite = Sprite.Create(mTexture, new Rect(0, 0, mTexture.width, mTexture.height), new Vector2(0.5f, 0.5f)); if (saveUseable) { byte[] bytes = mTexture.EncodeToPNG(); //若没路径 创建 if (!Directory.Exists((savePath))) { Directory.CreateDirectory(savePath); } //保存路径 string path_save = savePath + "/IMG_" + currentTime; //写入图片 File.WriteAllBytes(path_save, bytes); } CaptureOver(); action_End?.Invoke(); } void CaptureStart() { if (shouldHideObj.Length > 0) { for (int i = 0; i < shouldHideObj.Length; i++) { shouldHideObj[i].SetActive(false); } } } void CaptureOver() { if (shouldHideObj.Length > 0) { for (int i = 0; i < shouldHideObj.Length; i++) { shouldHideObj[i].SetActive(true); } } } }
🟨 指定相机截图
使用方法：
将下方脚本挂载到物体上，Skode_StartCapture为截图方法。action_End 委托方法为截图完后执行。
using System; using System.Collections; using System.IO; using UnityEngine; public class Skode_ScreenCapture_Rect : MonoBehaviour { [Tooltip("是否启用截图后将图片保存到下面路径的功能")] public bool saveUseable = false; [Tooltip("存储路径")] public string savePath = "/sdcard/Skode"; public GameObject[] shouldHideObj; /// <summary> /// 截图后的sprite /// </summary> [HideInInspector] public Sprite sprite; public void Skode_StartCapture(Rect mRect, Action action_End = null) { CaptureStart(); StartCoroutine(CaptureByRect(mRect, action_End)); } /// <summary> /// 根据一个Rect类型来截取指定范围的屏幕, 左下角为(0,0) /// 例：StartCoroutine(CaptureByRect(new Rect(100, 150, 1024, 768))); /// 从左下角的横坐标100,纵坐标150坐标开始截图，宽度1024，高度768 /// </summary> public IEnumerator CaptureByRect(Rect mRect, Action action_End = null) { //等待渲染线程结束 yield return new WaitForEndOfFrame(); string currentTime = string.Format("{0:yyyyMMddHHmmssffff}", DateTime.Now); //初始化Texture2D, 大小可以根据需求更改 Texture2D mTexture = new Texture2D((int)mRect.width, (int)mRect.height, TextureFormat.RGB24, false); //读取屏幕像素信息并存储为纹理数据 mTexture.ReadPixels(mRect, 0, 0); //应用 mTexture.Apply(); sprite = Sprite.Create(mTexture, new Rect(0, 0, mTexture.width, mTexture.height), new Vector2(0.5f, 0.5f)); if (saveUseable) { byte[] bytes = mTexture.EncodeToPNG(); //若没路径 创建 if (!Directory.Exists((savePath))) { Directory.CreateDirectory(savePath); } //保存路径 string path_save = savePath + "/IMG_" + currentTime; //写入图片 File.WriteAllBytes(path_save, bytes); } CaptureOver(); action_End?.Invoke(); } void CaptureStart() { if (shouldHideObj.Length > 0) { for (int i = 0; i < shouldHideObj.Length; i++) { shouldHideObj[i].SetActive(false); } } } void CaptureOver() { if (shouldHideObj.Length > 0) { for (int i = 0; i < shouldHideObj.Length; i++) { shouldHideObj[i].SetActive(true); } } } }
