FFGL is the plugin format used by Resolume and other VJ software, so these run inside a live visual set rather than as rendered clips. The set covers a rectangular plate, a two-frequency rectangular version that mixes one mode into another, a circular disk, a polygon with three to twelve sides, and a nested variant.
The interesting part for anyone who builds physical rigs is that n and m — the mode numbers that determine which pattern a real plate falls into — are exposed as sliders, alongside amplitude, rotation, scale and colour. Sweeping them by hand is a fast way to build intuition about which figures are neighbours in the mode space, something a physical plate makes you hunt for by ear.
It is a demo reel rather than a tutorial, and at nineteen minutes it is patient. These are mathematical models of plate modes, not recordings of plates.