如何在 MakePhoto 中调用方法 FlipTextureVertically
?
我当前拍摄的照片是上下颠倒的,我遇到了这个纹理翻转代码,但我不知道如何应用它。
如果有人可以帮助我,我将非常感激!
public static Texture2D FlipTextureVertically(Texture2D original)
{
Texture2D flipped = new Texture2D(original.width, original.height, TextureFormat.ARGB32, false);
int xN = original.width;
int yN = original.height;
for (int i = 0; i < xN; i++)
{
for (int j = 0; j < yN; j++)
{
flipped.SetPixel(i, yN - j - 1, original.GetPixel(i, j));
}
}
flipped.Apply();
return flipped;
}
public string MakePhoto(bool openIt)
{
int resWidth = Screen.width;
int resHeight = Screen.height;
Texture2D screenShot = new Texture2D(resWidth, resHeight, TextureFormat.RGB24, false); //Create new texture
RenderTexture rt = new RenderTexture(resWidth, resHeight, 24);
// hide the info-text, if any
if (infoText)
{
infoText.text = string.Empty;
}
// render background and foreground cameras
if (backroundCamera && backroundCamera.enabled)
{
backroundCamera.targetTexture = rt;
backroundCamera.Render();
backroundCamera.targetTexture = null;
}
if (backroundCamera2 && backroundCamera2.enabled)
{
backroundCamera2.targetTexture = rt;
backroundCamera2.Render();
backroundCamera2.targetTexture = null;
}
if (foreroundCamera && foreroundCamera.enabled)
{
foreroundCamera.targetTexture = rt;
foreroundCamera.Render();
foreroundCamera.targetTexture = null;
}
// get the screenshot
RenderTexture prevActiveTex = RenderTexture.active;
RenderTexture.active = rt;
screenShot.ReadPixels(new Rect(0, 0, resWidth, resHeight), 0, 0);
// clean-up
RenderTexture.active = prevActiveTex;
Destroy(rt);
byte[] btScreenShot = screenShot.EncodeToJPG();
Destroy(screenShot);
// save the screenshot as jpeg file
string sDirName = Application.persistentDataPath + "/Screenshots";
if (!Directory.Exists(sDirName))
Directory.CreateDirectory (sDirName);
string sFileName = sDirName + "/" + string.Format ("{0:F0}", Time.realtimeSinceStartup * 10f) + ".jpg";
File.WriteAllBytes(sFileName, btScreenShot);
Debug.Log("Photo saved to: " + sFileName);
if (infoText)
{
infoText.text = "Saved to: " + sFileName;
}
// open file
if(openIt)
{
System.Diagnostics.Process.Start(sFileName);
}
return sFileName;
}
最佳答案
我真的不明白为什么屏幕截图应该颠倒,但我想你应该将其称为例如之后
screenShot.ReadPixels(new Rect(0, 0, resWidth, resHeight), 0, 0);
screenShot = FlipTextureVertically(screenShot);
但可能有更有效的方法来做到这一点。
例如不创建新的 Texture2D
而是仅更改您已有的像素
public static void FlipTextureVertically(Texture2D original)
{
var originalPixels = original.GetPixels();
var newPixels = new Color[originalPixels.Length];
var width = original.width;
var rows = original.height;
for (var x = 0; x < width; x++)
{
for (var y = 0; y < rows; y++)
{
newPixels[x + y * width] = originalPixels[x + (rows - y -1) * width];
}
}
original.SetPixels(newPixels);
original.Apply();
}
public static void FlipTextureHorizontally(Texture2D original)
{
var originalPixels = original.GetPixels();
var newPixels = new Color[originalPixels.Length];
var width = original.width;
var rows = original.height;
for (var x = 0; x < width; x++)
{
for (var y = 0; y < rows; y++)
{
newPixels[x + y * width] = originalPixels[(width - x - 1) + y * width];
}
}
original.SetPixels(newPixels);
original.Apply();
}
并像这样使用它
screenShot.ReadPixels(new Rect(0, 0, resWidth, resHeight), 0, 0);
FlipTextureVertically(screenShot);
关于c# - Unity使用c#翻转纹理,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/54623187/