Particle Flow scene, 200 particles are moved slowly around a little sphere – emitter object. To make nice thin lines, they are separated as much as possible in Position Object operator.
After exporting to Krakatoa’s PRT format, here is rendered 80 million particles:
3dsmax 2012 scene with PFlow setup, as well PRT Loader with already pre-cached one frame (220MB). All MagmaScripts with exact screenshots included. Magma files can be download separately under each thread or from Dropbox.