Cook-Torrance BRDF Visualizer

Cook-Torrance BRDF Visualizer

Schlick Approximation | Roughness: 0.3 | F₀: 0.8

Controls

Roughness (α):

Smooth (0.01) 0.3 Rough (1.0)

Base Reflectivity (F₀):

0% 80% 100%

Light Angle:

0° 45° 90°

Metalness:

Dielectric 0% Metal

Fresnel Model: Schlick Approximation Exact Fresnel

Normal Distribution: GGX/Trowbridge-Reitz Beckmann Blinn-Phong

About Cook-Torrance Model

The Cook-Torrance BRDF is a physically-based shading model that accurately represents how light interacts with rough surfaces using microfacets.

Key components:

• Normal Distribution (D): How microfacets are oriented
• Geometry (G): Shadowing/masking effects
• Fresnel (F): Reflectance at different angles
• Roughness: Controls surface microfacets
• Metalness: Affects base reflectivity