constructor( parser ) {

		this.parser = parser;
		this.name = EXTENSIONS.KHR_MATERIALS_TRANSMISSION;

	}
Transmission Materials Extension

Specification: https://github.com/KhronosGroup/glTF/tree/master/extensions/2.0/Khronos/KHR_materials_transmission
Draft: https://github.com/KhronosGroup/glTF/pull/1698

@private