We validate the proposed method through a large repository of interactively sketched examples. We design new algorithms that distinguish themselves from other existing sketch-based design systems with three unique features: (1) A novel sketch metaphor to create freeform surface based on Poisson's equation, which is simple, intuitive, and free of ambiguity (2) Convenient and flexible user interface that affords the user to add rich details to the surface with simple sketch input and (3) Rapid model creation with sparse strokes, which enables novice users to enjoy the utilities of our system to create expected 3D models. Our novel method is a natural extension of Poisson vector graphics (PVG). In this paper, we articulate a new approach to interactive generation of 3D models with rich details by way of sketching sparse 2D strokes.
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