I wanted to explore the aesthetics of continuous lines and wireframe geometry, creating something that resembles a digital spirograph or a 3D oscilloscope. My goal was to visualize the distinct layers of a musical track through intertwining, luminous curves.
The workflow begins with two separate sphere geometries in TouchDesigner. Instead of rendering them as solid forms, I used a Line material to strip them down to their bare skeletal structures. I then applied noise and transform operators to warp these basic shapes into radiating, floral, and spiraling patterns.
The core of the audio-reactivity relies on a dedicated audio analysis component. I separated the sound input into distinct frequency bands—isolating the rhythm, the lows, and the highs. By routing these specific audio channels into the rotation, scale, and noise parameters of the geometries, the lines dynamically twist, expand, and bloom in perfect sync with the different layers of the track.
To finalize the visual, I utilized a feedback loop in the post-processing stage. This created smooth, lingering light trails that emphasize the sweeping motion of the lines, giving them a sense of persistence and flow. Finally, I passed the output through a ramp and lookup setup to fine-tune the color mapping, resulting in a hypnotic, glowing dance of harmonic spirals.
