OptionalcolorBase asphalt colour at zero pebble brightness. Default [0.10, 0.10, 0.097].
OptionalfleckMineral-fleck colour. Default [0.55, 0.55, 0.534].
OptionalfleckPer-pixel-hash threshold above which a fleck is placed. Default 0.97.
OptionalnormalheightToNormal strength. Default 3.0.
OptionalpebblePebble cell size in pixels. Default 4.
OptionalroughnessUniform roughness in [0..1]. Default 0.95.
Options accepted by paintAsphalt.