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While many factors contribute to shape perception, psychological research indicates that the direction of lines on the surface may have an important influence. This is especially ...
Ahna Girshick, Victoria Interrante, Steven Haker, ...
Principal curvatures and principal directions are fundamental local geometric properties. They are well defined on smooth surfaces. However, due to the nature as higher order di�...
Line-art illustrations are effective tools for conveying shapes and shading of complex objects. We present a set of new algorithms to render line-art illustrations of dynamic and s...