interpolate_irradiance_smith
interpolate_irradiance_smith(distance, min, max) ⇒ number
Using Smith inverse-square bounded approximation
Kind: global function
See: "An Inexpensive BRDF Model for Physically-based Rendering" by Christophe Schlick
| Param | Type |
|---|---|
| distance | number |
| min | number |
| max | number |