Define the KHR_materials_dispersion
extension materials options.
Define the KHR_materials_emissive_strength
extension materials options.
Define the KHR_materials_ior
extension materials options.
Define the KHR_materials_transmission
extension materials options.
Define the KHR_materials_specular
extension materials options.
Define the KHR_materials_unlit
extension materials options.
Define the KHR_materials_volume
extension materials options.
Base mapping for all potential GLTF materials extensions types.