Interaction
Lab.

Thousands of grains orbit a star and its moons. The pointer is a gravity well; holding gathers grains into a new body that launches when released.

A reaction–diffusion pattern that can only grow inside a letterform or shape.

Liquid-metal droplets that merge on contact and split when thrown against the walls.

An SVG icon drawn one path command at a time as a reading slit moves through its d attribute, with the Bézier construction shown live.

A wordy draft edits itself into a tighter final: deletions strike through and collapse, insertions type themselves in.

A Gray–Scott reaction–diffusion field you can seed and dissolve, and watch heal.

Code for a spring animation. Numbers inside the reading slit can be scrubbed, and a live preview plots the spring’s response.

A page of text in the dark. A lamp casts a cone of light that reveals the words it touches.

Contour lines over a drifting terrain. Erase a crater and the field relaxes back.

Thousands of particles carried by a curl-noise current that the pointer can stir.

Liquid inside the letters of a word stays level and sloshes as the word tilts.

Tiny text under a fisheye loupe that follows the pointer.

A wave tank driven by the 2D wave equation, with optional slits that diffract the waves.

Iron filings align with the field of bar magnets that can be moved and flipped.

A planet printed as a two-colour halftone; dot size follows the light.

A Verlet cloth hanging from pins that can be pulled, torn and rehung.

Falling sand that piles at its angle of repose, poured in coloured strata.

A flock of boids that flees the pointer and swarms around bait.

Damped pendulums trace a harmonograph; frequency ratio and phase follow the pointer.

Voronoi cells relaxing toward even spacing, parted by the pointer.

A word made of particles that spring back home after being scattered.

Vibrating strings simulated with the wave equation, showing their harmonics, with optional sound.