Turns out that some debug code from when I was first getting the span draw-er up and running, which was only accepting spans that didn't exceed the presumed clipping range of the framebuffer viewport, was biting me in the ass. This looks a lot more like Polygonet Commanders.

Still some DSP bugs lurking - those bent triangles on the front of the first-person tank are pretty suspicious - but if I can get Thursday off in addition to Friday this week, I'd say we have a damn good chance of getting this sucker finalized for 0.245.