Unity 之 Texture和Texture2D部分使用相关

Unity 之 Texture和Texture2D 分享几个实用的方法，，，

Texture转换成Texture2D，，，

 /// <summary> /// Texture转换成Texture2D... /// </summary> /// <param name="texture"></param> /// <returns></returns> Texture2D TextureToTexture2D(Texture texture) { Texture2D texture2D = new Texture2D(texture.width, texture.height, TextureFormat.RGBA32, false); RenderTexture currentRT = RenderTexture.active; RenderTexture renderTexture = RenderTexture.GetTemporary(texture.width, texture.height, 32); Graphics.Blit(texture, renderTexture); RenderTexture.active = renderTexture; texture2D.ReadPixels(new Rect(0, 0, renderTexture.width, renderTexture.height), 0, 0); texture2D.Apply(); RenderTexture.active = currentRT; RenderTexture.ReleaseTemporary(renderTexture); return texture2D; }


  

 

  
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使用Texture2D 的形式截图，，，

/// <summary>
/// 截图...
/// </summary>
/// <param name="rect">截图的区域</param>
/// <returns></returns>
Texture2D CaptureScreenshot(Rect rect) 
{
	// 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
	byte[] bytes = screenShot.EncodeToPNG();
	string filename = Application.dataPath + "/Screenshot.png";
	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;
}

  

 

  
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将Texture保存到本地，，，

 /// <summary> /// 将Texture转为本地PNG... /// </summary> /// <param name="filePath"></param> /// <param name="teture"></param> /// <returns></returns> public static bool saveMainTextureToPng(string filePath, Texture teture) { if (teture.GetType() != typeof(Texture2D)) { return false; } Texture2D savedTexture = (Texture2D)teture; try { Texture2D newTexture = new Texture2D(savedTexture.width, savedTexture.height, TextureFormat.RGBA32, false); newTexture.SetPixels(0, 0, savedTexture.width, savedTexture.height, savedTexture.GetPixels()); newTexture.Apply(); byte[] bytes = newTexture.EncodeToPNG(); if (bytes != null && bytes.Length > 0) { if (File.Exists(filePath)) { File.Delete(filePath); } System.IO.File.WriteAllBytes(filePath, bytes); } } catch (IOException ex) { return false; } return true; }

  

 

  
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将本地图片转换为Byte[]数组，，，

 /// <summary> /// 将图片转换为byte数组... /// </summary> /// <param name="filePath">图片路径</param> /// <returns></returns> public static byte[] ReadTexture(string filePath) { FileStream fileStream = new FileStream(filePath, FileMode.Open, System.IO.FileAccess.Read); fileStream.Seek(0, SeekOrigin.Begin);
		//创建byte数组 ...   byte[] buffer = new byte[fileStream.Length]; fileStream.Read(buffer, 0, (int)fileStream.Length); fileStream.Close(); fileStream.Dispose(); fileStream = null; return buffer; }

  

 

  
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文章来源: czhenya.blog.csdn.net，作者：陈言必行，版权归原作者所有，如需转载，请联系作者。

原文链接：czhenya.blog.csdn.net/article/details/88179178