SnowOn

step: 0
mass: 1
reach: 0

Growth lab

Reiter's local cellular model, running live. Three constants, no rule that mentions arms or symmetry.

Morphology

α spread1.40How easily water in the air moves from one place to the next.β moisture0.450Water in the air before growth starts. Too little starves the edge into dendrites; plenty feeds it into plates.γ sticking0.0008How much water freezes onto the crystal at each step. This is growth speed.σ variation0.0040A tiny wobble in the starting conditions, applied evenly to all six directions. Makes every seed different without breaking the symmetry.

lattice radius72 cellsQuadratic cost: 3r(r+1)+1 cells stepped per frame.steps per frame3Growth speed on screen, not in the model.stop after1200 genGenerations before the crystal settles.

Seed

The seed only perturbs the starting field. The same seed and the same constants grow the same crystal on every device.