public virtual void setUniformColor(bool enable, uint color, float alpha)
 {
     mColor[0]     = AsColor.getRed(color) / 255.0f;
     mColor[1]     = AsColor.getGreen(color) / 255.0f;
     mColor[2]     = AsColor.getBlue(color) / 255.0f;
     mColor[3]     = alpha;
     mUniformColor = enable;
 }
 public static void clear(uint rgb, float alpha)
 {
     AsStarling.getContext().clear(AsColor.getRed(rgb) / 255.0f, AsColor.getGreen(rgb) / 255.0f, AsColor.getBlue(rgb) / 255.0f, alpha);
 }