[ltxdpvgz] Flurry jets

Consider a point traveling through space emitting jets of particles in (say) 6 directions corresponding to the vertices of a regular octahedron.

The orientation of the point, consequently the direction of the jets, tumbles, and the point itself moves around space.  The jet particles continue moving according to the velocity they had when they were released, so the particle's motion paints a complicated picture of seemingly curving often spiraling jets.

Inspired by the Mac Flurry screensaver, though this is an extremely expensive way to model it, requiring simulating a large number of jet particles.

Add relativistic effects.