Phong Metal (pMtl)

key: pMtl

type: CC(C)*

  1. color: normal incidence reflectance.
  2. color: phong exponent.

Description

A metal with spread reflection controlled by Phong exponent.

BRDF

Examples 

 pMtl rgb 0.8 0.7 0.4 end   sclr 100.0 end   end    % a rough metal
 pMtl rgb 0.8 0.7 0.4 end   sclr 1.0e7 end   end    % a smooth metal