Fractal World Generator v1.0.2

Mass balance model: Perennial snow (white) exists where annual accumulation ≥ ablation (melt + sublimation). Blue gradient shows snow accumulation; warmer colors show areas with net melt.

Whittaker Biome Model

Whittaker diagram classification based on temperature and rainfall (from planet.c).

Holdridge Life Zones

Classification based on biotemperature (mean annual temp with <0°C and >30°C treated as dormant) and annual precipitation, using the PET (Potential Evapotranspiration) ratio.

Tropical (>24°C): Rain Forest Wet Forest Moist Forest Dry Forest Thorn Woodland Desert

Subtropical (18-24°C): Rain Forest Wet Forest Moist Forest Dry Forest Thorn Woodland Desert

Warm Temperate (12-18°C): Rain Forest Wet Forest Moist Forest Dry Forest Steppe Desert

Cool Temperate (6-12°C): Rain Forest Wet Forest Moist Forest Dry Forest Steppe Desert

Boreal (3-6°C): Rain Forest Wet Forest Moist Forest Dry Forest Steppe Desert

Subpolar (1.5-3°C): Wet Tundra Moist Tundra Tundra Dry Tundra Steppe Desert

Polar (<1.5°C): Polar Desert

Ocean: Ocean

Ecosystem Maps

Ecosystem characteristics derived from Holdridge Life Zones. Maps show initial conditions based on climate; use the simulation controls to model ecosystem dynamics over time (soil development, vegetation succession, fauna populations, fire cycles).

Soil Map

Soil color indicates type and composition based on organic matter, leaching, salinity, and drainage.

Typical (Inceptisol) Red (Oxisol/Ultisol) Black (Mollisol) Pale (Aridisol) Gray (Gelisol) Ocean

Vegetation Map

Vegetation cover shows canopy density and ground cover type based on the Holdridge life zone targets.

Dense Forest Open Forest Woodland Grassland Moss/Tundra Litter Floor Desert Crust Sparse/Bare Ocean

Fauna Map

Fauna guild abundance encoded as RGB color channels. Brightness indicates total biodiversity.

R: Large Mammals G: Invertebrates + Amphibians B: Reptiles + Birds

Savanna (mammals + invertebrates) Wetland (invertebrates + birds) Desert (mammals + reptiles) High Diversity (all guilds) Low Diversity Ocean

Fire Risk Map

Composite fire danger based on annual fire probability, fuel load, and dryness.

Very Low Low Moderate High Very High Extreme Ocean

River Map

Coastline Map

Water Cover Map

Ice Cap Classification

Mass-balance driven classification: ■ Ice Caps (large, low-relief, thick), ■ Glaciers (smaller/steeper), ■ Perennial Snowfields.

Terrain Map (with Erosion)

Final Simulated Map

Islands-Style WebGL Terrain

GPU-accelerated terrain rendering with elevation-based coloring, hillshade, and water effects.

WebGL Temperature Map

GPU-accelerated temperature visualization with hillshade. Blue (cold) to Red (hot).

WebGL Rainfall Map

GPU-accelerated rainfall visualization. Tan (dry) to Blue (wet), measured in mm/year.

WebGL Evaporation Map

GPU-accelerated evaporation visualization. Low (blue) to High (red), measured in mm/year equivalent.

WebGL Snowfall Map

GPU-accelerated snow accumulation. Brown (no snow) to White (permanent snow), in mm/year.

WebGL Whittaker Biome Map

WebGL Holdridge Life Zone Map

GPU-accelerated Holdridge Life Zone classification based on biotemperature and PET ratio.

WebGL Ice Cap Map

GPU-accelerated ice classification: Perennial Snow (light), Glaciers (blue), Ice Caps (white).

WebGL Elevation Map

GPU-accelerated terrain elevation with full ocean depth visualization and hillshade.

Random Seed:
Projection:		Palette:
% Water:		% Ice:
Height:		Iterations:		Rotate:
Terrain Variation:	75%
Algorithm:		Apply Erosion:
Simulate Ocean Currents:		Enable Theta Hack:
Time Simulation:		Time (Million Years):	1.5 MY
Show Rivers:		Show Coastlines:
Horizontal Factor:	0.50
Vertical Factor:	0.20

Fractal World Generator

World Map

Temperature Map

Rainfall Map

Evaporation Map

Snowfall & Perennial Snow Map