Radial Sphere — the cosmic sea star
The Radial Sphere is an organic three-dimensional structure: a bright white central core from which 22 arms extend in all directions of space, each made of 12 spheres of increasing size. The whole thing looks like a high-dimensional sea star, a cosmic urchin, or a giant atom pulsing to the rhythm of your music.
What you see
The core is a luminous icosahedron whose brightness varies with bass intensity. From it extend 22 arms arranged according to a Fibonacci distribution on the sphere (for perfectly uniform spacing). Each arm extends or retracts according to its assigned frequency — arms corresponding to bass extend in slow, powerful explosions, while those for treble vibrate rapidly in quick tremors.
Each arm has its own HSL color, creating a three-dimensional rainbow that slowly rotates. Pyramids (4-face ConeGeometry) orbit the structure at varying distances, moving outward during energy peaks.
Geometry and motion
The entire scene performs a complex rotation on three axes at slightly different speeds depending on the mids, giving an impression of chaotic yet harmonious rotation — like a planet whose orbit is disturbed by sound.
Technology
IcosahedronGeometry core (detail 3). The 22 arm directions are calculated via Fibonacci distribution on the sphere (golden phi). Each arm contains BALLS_PER_ARM=12 spheres whose radial position = frac × freq_amplitude × ARM_MAX_R. ConeGeometry pyramids (4 faces) with additive blending for the luminous effect.