Instant Stippling on 3D Scenes

In this paper, we present a novel real‐time approach to generate high‐quality stippling on 3D scenes. The proposed method is built on a precomputed 2D sample sequence called incremental Voronoi set with blue‐noise properties. A rejection sampling scheme is then applied to achieve tone reproduction,...

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Bibliographic Details
Published in:Computer graphics forum 2018-10, Vol.37 (7), p.255-266
Main Authors: Ma, Lei, Guo, Jianwei, Yan, Dong‐Ming, Sun, Hanqiu, Chen, Yanyun
Format: Article
Language:English
Subjects:
3-D graphics
CCS Concepts
Coherence
Computer graphics
Computing methodologies → Computer graphics
Image processing systems
Image processing
Texturing
Appearance and texture representations
Non‐photorealistic rendering
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Summary:In this paper, we present a novel real‐time approach to generate high‐quality stippling on 3D scenes. The proposed method is built on a precomputed 2D sample sequence called incremental Voronoi set with blue‐noise properties. A rejection sampling scheme is then applied to achieve tone reproduction, by thresholding the sample indices proportional to the inverse target tonal value to produce a suitable stipple density. Our approach is suitable for stippling large‐scale or even dynamic scenes because the thresholding of individual stipples is trivially parallelizable. In addition, the static nature of the underlying sequence benefits the frame‐to‐frame coherence of the stippling. Finally, we propose an extension that supports stipples of varying sizes and tonal values, leading to smoother spatial and temporal transitions. Experimental results reveal that the temporal coherence and real‐time performance of our approach are superior to those of previous approaches.
ISSN:0167-7055
1467-8659
DOI:10.1111/cgf.13565