Layered (lyrd)

key: lyrd

type: CCC(C)*

  1. mat'l: material on the surface
  2. mat'l: reflective material for stuff under polish
  3. color: coverage-- what fraction of the substrate material is covered (on average) by the surface material

Description

A substrate covered by another material

BRDF

Restrictions

Substrate cannot be an emittor

Examples 

 lyrd % a red material with a high glossy polish
    pDlctrc sclr 1.3 end sclr 1.0e7 end end
    lmbrtn  rgb 0.8 0.2 0.2 end end
    sclr 1.0 end
 end