Technical Report CIS9801

Title: Interactive Line Art Rendering of Freeform Surfaces
Authors: Gershon Elber
Abstract: In recent years, synthetically created sketched based drawings and line art renderings has reached quality levels that are both esthetically pleasing and informatively enhancing. While a growing interest in this type of rendering methods has yielded successful and appealing results, the developed techniques were, for the most part, too slow to be embedded in real time interactive display. This paper presents a line art rendering method for freeform polynomial and rational surfaces that is capable of achieving real time and interactive display. A careful preprocessing stage that combines an a-priori construction of line art strokes with proper classification of the strokes, allows one to significantly alleviate the computational cost of sketching based rendering, and enable interactive real time line art display.
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