Drossel–Schwabl Forest Fire Model (High Resolution)

Controls

Tree growth probability p

Lightning probability f

Steps per frame

Resolution (cells & pixel size)

Width, height in cells; cell size in pixels.

Tree growth pattern

Lightning & growth coupling

Pause tree growth while fire is active Suppress lightning when growth is paused

Max lightning strikes / frame

Caps how many trees can ignite from lightning in one frame (across all steps).

Random seed Same seed + params ⇒ reproducible dynamics.

Model equations & current parameters

States: empty (black), tree (green), burning (orange/red).
Fires are grouped into events from first spark until all fire is gone; the chart tracks the size distribution of those events.

Good SOC-ish starting point (current defaults):
p = 1.5e-3, f = 1e-5, steps/frame = 5, growth pattern = Realistic.

Drossel–Schwabl Forest Fire Model

Controls

Forest

Fire Size Distribution (log-binned)