public void updateData()
{
int w = myTexture.width;
int h = myTexture.height;
int comp = 3;
PixelFormat pf = PixelFormat.Rgb;
switch (myTexture.pixelFormat)
{
case PixelInternalFormat.R32f: comp = 1; pf = PixelFormat.Red; break;
case PixelInternalFormat.Rgb: comp = 3; pf = PixelFormat.Rgb; break;
case PixelInternalFormat.Rgb32f: comp = 3; pf = PixelFormat.Rgb; break;
case PixelInternalFormat.Rgba: comp = 4; pf = PixelFormat.Rgba; break;
case PixelInternalFormat.Rgba32f: comp = 4; pf = PixelFormat.Rgba; break;
}
myData = new float[w * h * comp];
myTexture.bind();
GL.GetTexImage(myTexture.target, 0, pf, PixelType.Float, myData);
myTexture.unbind();
}