3D objects can be added to the project to be displayed in the scene. These objects can be added, selected and deleted through the 3D view. The 3D objects includes:

• 3D geometry objects: Spheres, cones and other primitives, curves and various kinds of NURBS surfaces, heightfields. See the list of 3D object here
• Lights objects: The list can be found here.
• Materials: they can be assigned to objects to produce a variety of shading effects in visualization. Materials are defined using a _shading network_: This establishes a data flow through the nodes of the network which finally leads to the visible material properties like colour and opacity. Several kinds of nodes are available: Image maps, procedural maps, transformations. You can freely mix them in the shading network, which gives you great flexibility in defining materials.