Download DLL containing C# class library to work with 3D files (3DS, 3MF, DAE, DFX, USD, Blender, OpenUSD, MA, gITF, U3D), meshes, geometries, scenes, animations via .NET on-premise API....Download DLL containing C# class library to work with 3D files (3DS, 3MF, DAE, DFX, USD, Blender, OpenUSD, MA, gITF, U3D), meshes, geometries, scenes, animations via .NET on-premise API.