This course introduces the fundamentals of interactive computer graphics programming within the context of a typical architectural CAD system. Specifically, students will be introduced to the process of developing GDL scripts within ArchiCAD for the purpose of creating what in the industry have become known as 'smart objects'. This is a process and technology that is being used increasingly in architectural practices where ArchiCAD is used to produce complex 3D component building models. Topics to be covered: concepts of building modelling with ArchiCAD; types of smart objects; parametric library objects; object intelligence; GDL scripting; program planning, design and debugging. Assessment will be project-based involving the development of GDL library parts with a range of complexity.