OptionalambientAmbient light intensity (default: 1)
OptionaldefaultDefault opacity level for transparency (default: 0.5)
OptionaldirectDirect light intensity (default: 1.1)
OptionaledgeDefault edge color (default: 0x707070)
OptionalmetalnessMetalness (default: 0.3)
OptionalnormalShow triangle normals when normalLen > 0 (default: 0)
OptionalroughnessRoughness (default: 0.65)
Render options