public void Resize(int width, int height)
{
GL.Viewport(0, 0, width, height); // tell OpenGL to use the whole window for drawing
//TODO: Save the view port aspect ratio for use in rendering
_windowAspectRatio = height / (float)width;
var viewport = Transformation2d.Combine(Transformation2d.Translate(Vector2.One), Transformation2d.Scale(width / 2f, height / 2f));
InvViewportMatrix = viewport.Inverted();
GL.Ortho(0, width, height, 0, -1, 1);
UpdateMatrix();
}
