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Prism Dispersion Beam
A thin white beam strikes a glass prism and fans out into a spectrum, with glints where it crosses each face. Faster streams brighten the beam and send more pulses into the fan.
Also known as: prism dispersion shader, light spectrum prism, rainbow refraction beam.
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Everything you see above is live. Basic and Pro include every premium piece, with the standalone HTML and GLSL ready to copy, plus Motions in Claude Code on Pro.
Customizing this shader
- Speed:
uTpsis the token rate anduTokensthe running count. The standalone runner adds a natural wobble to a fixed rate, the way real streams speed up and slow down. - Color: set
data-coloron the canvas, or changeuColorin the Shadertoy version. Currently previewing#8f7dff. - Size: style the canvas with CSS. It renders at up to twice your screen's pixel density and stops drawing while it is off screen.
- Reduced motion: the runner draws a single still frame for people who asked their OS for less motion.