3D Volumetric Cloud Physics Engine

60 FPS 3D Ray-March + Dual-Lobe HG

Drag sky to look around · Real-time LCL thermodynamics, Kelvin–Helmholtz shear & 3D frustum hydrometeors

Cumulonimbus Incus

Supercell Thunderstorm

21°C

Dew Point: 18°C

LCL Base

375 m

0°C Level

3,230 m

CAPE

3,150 J/kg

Optical $\tau$

42.8

3D ray-marched convective slab with high vertical development ($z_{\text{top}} = 11.5\,\text{km}$). Secondary shadow rays march toward the sun vector using a dual-lobe Henyey–Greenstein phase function ($g_f = 0.82, g_b = -0.30$) and 3-octave multiple scattering.

Real-Time 3D Volumetric & Thermodynamic Parameters

Solar Hour 15:30

Surface Temp ($T_0$) 21°C

Humidity & Cover 88%

Convective Depth 92%

Extinction ($\sigma_e$) 0.86

Wind & Anvil Shear 68 km/h

High Ice Cirrus 45%

Boundary Fog/Mist 35%

Precipitation Flux 90%

Drop-In Weather App Integration (`window.CloudPhysics3D`)

This custom 3D volumetric ray-marching engine is encapsulated in the standalone VolumetricCloudPhysicsEngine class and exposed globally as window.CloudPhysics3D:

// 1. Switch to any of the 12 physical weather regimes:
// 'clear' | 'humilis' | 'congestus' | 'stratocumulus' | 'cirrus' | 'fog' |
// 'drizzle' | 'monsoon' | 'supercell' | 'snow' | 'blizzard' | 'hail'
CloudPhysics3D.setRegime('supercell');

// 2. Or drive directly from live Open-Meteo WMO telemetry:
CloudPhysics3D.syncOpenMeteo({
  wmoCode: 95,
  tempC: 21,
  humidity: 88,
  windKmh: 54,
  solarHour: 15.5
});

// 3. Trigger a 3D volumetric lightning discharge at any time:
CloudPhysics3D.triggerDischarge();