Presets:
Celestial Sun Controls
Rayleigh Scattering Model
10°
Horizon at 0°. Golden hour occurs between 0° and 15°. Civil twilight from -6° to 0°.
245° (WSW)
0° North, 90° East (Sunrise), 180° South, 270° West (Sunset).
0.78 (Sunset Dust)
Sunrise typically <0.25 (overnight air settling). Sunset typically 0.70–0.90 (afternoon thermal dust).
Physical Solar Optics Telemetry
Real-time Equations
Color Temperature
3500
K
Warm incandescent glow. Blue wavelengths scattered out.
Shadow Multiplier
5.67
×
Length = 1 / tan(10°). Low raking angle creates strong relief.
Rayleigh Optical Depth
2.84
τ
Atmospheric path length at 10° is ~5.6× zenith thickness.
Mie Diffusion Factor
0.78
haze
Softens shadow penumbra while enriching warm twilight rim.
6-Point Photographic Lighting Analysis
Quora Pro Master Class
Light performs 6 foundational jobs in a photograph: defining Form, Shape, Volume, Texture, Contrast, and Color.
1. Form Definition
Clear 3D depth from low-angle modeling shadows
2. Shape & Silhouette
Distinct highlight separation on subject silhouettes
3. Volume & Falloff
Graduated falloff across curved geometries
4. Surface Texture
Pronounced surface relief accentuated by raking incident rays
5. Contrast & Dynamic Range
Soft shadow transitions with balanced dynamic range
6. Color Spectrum
Warm amber-gold glow matching incandescent spectrum
Photographer's Field Recipe
Golden Sunset
Target White Balance (Camera Kelvin):
5600K (Preserve Warmth)
Solar Azimuth / Angle:
Elevation 10° @ Azimuth 245°
Subject Orientation Tip:
Turn subject 45° to sun for classic Rembrandt lighting
Recommended Lens Modifiers:
Lens hood required (flare protection)