An LFO's waveform with a cursor riding the current phase. Drawn from the shape's closed form rather than measured off an analyser — which is the only sensible way to display a modulator running well below 20 Hz. Pass a phase to drive it from a real LFO, or let it run on its own clock.
pnpm dlx shadcn@latest add "https://pluginui.com/r/core-lfo-visualizer.json"