brdf_burley

brdf_burley(NoV, NoL, LoH, roughness) ⇒ number

Kind: global function
See

• https://google.github.io/filament/Filament.md.html#listing_diffusebrdf
• Brent Burley. 2012. Physically Based Shading at Disney. Physically Based Shading in Film and Game Production, ACM SIGGRAPH 2012 Courses. N = surface normal L = light direction V = view direction H = normalize( V + L )

Param	Type	Description
NoV	number	= abs(dot(n, v)) + 1e-5
NoL	number	= lamp(dot(n, l), 0.0, 1.0)
LoH	number	= clamp(dot(l, h), 0.0, 1.0)
roughness	number	surface roughness coefficient