public static void CopyIntoTexture(Texture2D sourceTex, Texture2D targetTex)
{
Rect source = new Rect(0f, 0f, (float)targetTex.width, (float)targetTex.height);
TextureScale.GPUCopy(sourceTex, targetTex.width, targetTex.height);
targetTex.ReadPixels(source, 0, 0, false);
targetTex.Apply(false);
}