SKETCH-BASED BUILDING MODELLING

Computer generated 3D models of buildings are an important component of many computer graphics applications. Rapid and easy-to-use modelling techniques are often more important than the ability to create precise and detailed geometry. We present a sketch-based modelling tool for the rapid creation of rough 3D building models. The algorithm analyses the sketch input, extracts shape and detail information, predicts the building type, creates 3D models using three different reconstruction techniques, and adds building details using a displacement texture. A user study confirms that the algorithm is easy to use, intuitive, efficient and fun.