Tom Forsyth on Nostr: The mesh is just to kick off pixels that are reasonably near the surface, and start ...

The mesh is just to kick off pixels that are reasonably near the surface, and start the raytracer. It just has to be "outside" all the geometry you want to raytrace. It's a coarse mesh - 16 quads around the tube, 8 along the tube, so the animation looks reasonable (2 quads per bone).