/// <summary>
/// OnPostRender is called after a camera finished rendering the Scene.
/// Accordingly, taking the picture is performed at the end of a frame.
/// </summary>
private void OnPostRender()
{
if (takePictureOnNextFrame) // Proceed if the flag is set.
{
// Reset the flag.
takePictureOnNextFrame = false;
// Get the render texture.
RenderTexture renderTexture = screenshotCamera.targetTexture;
// Store the data of a rendered picture. Make it transparent by using ARGB32 format and do not use a bitmap.
Texture2D renderPicture = new Texture2D(renderTexture.width, renderTexture.height, TextureFormat.ARGB32, false);
// Create a rectangel to save the picture
Rect rect = new Rect(0, 0, renderTexture.width, renderTexture.height);
renderPicture.ReadPixels(rect, 0, 0);
// Read bytes and encode to a PNG.
byte[] byteArray = renderPicture.EncodeToPNG();
string fileName = GetPictureName(renderTexture.width, renderTexture.height);
// Save the file.
System.IO.File.WriteAllBytes(fileName, byteArray);
Debug.Log("The picture has been taken!");
// Release a temporary render texture allocated to the camera.
RenderTexture.ReleaseTemporary(renderTexture);
screenshotCamera.targetTexture = null;
ProgramManager.DisplayTakingPhotoPanel(1f);
// Refresh the folder to see the updated conent.
UnityEditor.AssetDatabase.Refresh();
}
}
