The ImageGear.Formats.U3D Namespace provides the API to create U3D vector format, and belongs to the ImageGear21.Formats.Vector.dll assembly. This namespace provides read and write support for the following features of Universal 3D format: CLOD Progressive Mesh, Normals, Colors (diffuse and specular), Views, Lights, Textures, Transparency, Linesets, and Pointsets.