Thin-film interference. Wavelength × film-thickness × view-angle. Physically-modelled iridescence on a transparent sphere — the math of Newton's rings.

Diffraction-grating BRDF. The angle between view, light, and surface micro-scratches splits white into a full spectrum — Pokémon card energy at planetary scale.

Fibonacci-distributed nodes on a sphere. Proximity edges with depth alpha. Firing cascades travel along synapses — the connectome rendered as planet.

Raymarched volumetric corona. Simplex-noise convection cells, granulation, magnetic prominence loops. The star renders itself.