3D-look shading from contours and hatching strokes

Published: 2015, Last Modified: 12 Nov 2025Comput. Graph. 2015EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Highlights•Our system generates 3D-look shading illustrations from simple sketches with outlines and hatching strokes.•Our system is the first study utilizing hatching strokes to construct surface normal from 2D hand-drawn input.•Normal of each hatching stroke is approximated by automatically matching it with an arc of a 3D circle.•We also propose a semi-automatic method to handle occluded regions that often appear in sketching.
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