Pokeable · Specimen 006

TouchGrass.

Go on.
Nobody's watching.
It grows back.

WebGPU · Live

Run your hand through the grass.

Blades
0
Flowers
0
Grass cut
0%
Wind
0km/h
How it grows
  1. Every blade is a little spring on the GPU: a compute shader stores how far and which way it bends, and how fast, then pulls it back upright with its own stiffness and damping, so it overshoots and wobbles.
  2. Your hand is a soft circle on the ground. Blades inside it are pushed away from it and along its motion (harder when you move faster) and keep a fading memory of the push, which is the wake you see.
  3. Wind is constant sway plus gust bands that travel across the field; wind and hand forces simply add up.
  4. Mowing and fire write into a grid over the field (grass height, ash, mow direction). Each cell grows back on its own; mow direction tilts the stubble, which is where the light and dark stripes come from.
  5. Fire spreads cell to cell by chance, faster through tall grass, slowly through cut grass, never through ash, and runs out of breath a couple of metres from where it started.
  6. Every sound is synthesised live with Web Audio: filtered noise for rustle, wind, blower and fire, oscillators for the mower, chirps, crickets and the chime.
✓Grass touched. You may return to the internet.