3D Modeling with Silhouettes - Alec Rivers

3D Modeling with SilhouettesAlec RiversMIT CSAILFr edo DurandMIT CSAILT akeo IgarashiThe University of TokyoFigure 1: Intersecting 2D Silhouettes :The Silhouettes on the left were used to automatically generate the 3D model on the right. Note thatthe line drawings are not projections of the 3D model, but rather the input that generates the present a new sketch-based Modeling approach in which mod-els are interactively designed by drawing their 2D Silhouettes fromdifferent views. The core idea of our paper is to limit the inputto 2D Silhouettes , removing the need to explicitly create or position3D elements. Arbitrarily complex models can be constructed by as-sembling them out of parts defined by their Silhouettes , which canbe combined using CSG operations. We introduce a new simplifiedalgorithm to compute CSG solids that leverages special propertiesof silhouette cylinders to convert the 3D CSG problem into one thatcan be handled entirely with 2D operations, making implementa-tion simpler and more robust.

3D Modeling with Silhouettes Alec Rivers MIT CSAIL Fredo Durand´ MIT CSAIL Takeo Igarashi The University of Tokyo Figure 1: Intersecting 2D silhouettes: The silhouettes on the left were used to automatically generate the 3D model on the right.

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  With, Modeling, Silhouette, 3d modeling with silhouettes

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