public static void drawScissor(NvgContext vg, float x, float y, float t)
{
vg.Save();
// Draw first rect and set scissor to it's area.
vg.Translate(x, y);
vg.Rotate(NvgUtility.DegToRad(5));
vg.BeginPath();
vg.Rect(-20, -20, 60, 40);
vg.FillColor(new Color(255, 0, 0, 255));
vg.Fill();
vg.Scissor(-20, -20, 60, 40);
// Draw second rectangle with offset and rotation.
vg.Translate(40, 0);
vg.Rotate(t);
// Draw the intended second rectangle without any scissoring.
vg.Save();
vg.ResetScissor();
vg.BeginPath();
vg.Rect(-20, -10, 60, 30);
vg.FillColor(new Color(255, 128, 0, 64));
vg.Fill();
vg.Restore();
// Draw second rectangle with combined scissoring.
vg.IntersectScissor(-20, -10, 60, 30);
vg.BeginPath();
vg.Rect(-20, -10, 60, 30);
vg.FillColor(new Color(255, 128, 0, 255));
vg.Fill();
vg.Restore();
}