This doesn't seem to be what nodebox was designed for, but I thought I would give it a try anyway. It turns out that nodebox works pretty well if you are willing to do a little math. This is the trefoil solid rendered from the parametric equations as a bunch (400,000) little rectangles in nodebox. Shading and color were applied as part of the algorithm--and it takes less than 45 lines of code--you gotta love python.
WoW! I love it. Fortunately we don't know what NodeBox was designed for!