Teddy: a sketching interface for 3D freeform design

摘要

We present a sketching interface fro quickly and easily designing freeform models such as stuffed animals and other rotund objects.The usr draws several 2D freeform strokes inteactively on hte screen and the system automatically constructs plausible 3D polygonal surfaces.Our system supports several modeling operations,including the operation to ocnstruct a 3D polygonal surface from a 2D sihouette drawn by the user: it influates the region surrounded by the sihouette makign wide areas fat,and narrow areas thin.Teddy,our prototype system,is implemented as a Java~TM propgram,and the mesh construction is done in real-time on a standard PC.Our informal user study showed that a first-time user typically asters the operations within 10 minutes,and can construct interesting 3D models within minutes.