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Article

Sketchy drawings

Authors:

Jürgen DöllnerAuthors Info & Claims

AFRIGRAPH '04: Proceedings of the 3rd international conference on Computer graphics, virtual reality, visualisation and interaction in Africa

Pages 73 - 81

https://doi.org/10.1145/1029949.1029963

Published: 03 November 2004 Publication History

Abstract

In non-photorealistic rendering sketchiness is essential to communicate visual ideas and can be used to illustrate drafts and concepts in, for instance, architecture and product design.

In this paper, we present a hardware-accelerated real-time rendering algorithm for drawings that sketches visually important edges as well as inner color patches of arbitrary 3D objects even beyond the geometrical boundary. The algorithm preserves edges and color patches as intermediate rendering results using textures. To achieve sketchiness it applies uncertainty values in image-space to perturb texture coordinates when accessing intermediate rendering results. The algorithm adjusts depth information derived from 3D objects to ensure visibility when composing sketchy drawings with arbitrary 3D scene contents. Rendering correct depth values while sketching edges and colors beyond the boundary of 3D objects is achieved by depth sprite rendering. Moreover, we maintain frame-to-frame coherence because consecutive uncertainty values have been determined by a Perlin noise function, so that they are correlated in image-space.

Finally, we introduce a solution to control and predetermine sketchiness by preserving geometrical properties of 3D objects in order to calculate associated uncertainty values. This method significantly reduces the inherent shower-door effect.

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Cited By

Bléron AVergne RHurtut TThollot JWyvill BFu H(2018)Motion-coherent stylization with screen-space image filtersProceedings of the Joint Symposium on Computational Aesthetics and Sketch-Based Interfaces and Modeling and Non-Photorealistic Animation and Rendering10.1145/3229147.3229163(1-13)Online publication date: 17-Aug-2018
https://dl.acm.org/doi/10.1145/3229147.3229163
Wood JIsenberg PIsenberg TDykes JBoukhelifa NSlingsby A(2018)Sketchy Rendering for Information VisualizationIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2012.26218:12(2749-2758)Online publication date: 28-Dec-2018
https://dl.acm.org/doi/10.1109/TVCG.2012.262
Limberger DFiedler CHahn STrapp MDollner J(2016)Evaluation of Sketchiness as a Visual Variable for 2.5D Treemaps2016 20th International Conference Information Visualisation (IV)10.1109/IV.2016.61(183-189)Online publication date: Jul-2016
https://doi.org/10.1109/IV.2016.61
Show More Cited By

Index Terms

Sketchy drawings
1. Computing methodologies
  1. Computer graphics
    1. Image manipulation
    2. Rendering

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Published In

cover image ACM Conferences

AFRIGRAPH '04: Proceedings of the 3rd international conference on Computer graphics, virtual reality, visualisation and interaction in Africa

November 2004

176 pages

ISBN:1581138636

DOI:10.1145/1029949

Conference Chairs:
Lynette van Zijl
Stellenbosch University, South Africa
,
Patrick Marais
University of Cape Town, South Africa

Copyright © 2004 ACM.

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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SIGGRAPH: ACM Special Interest Group on Computer Graphics and Interactive Techniques

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Published: 03 November 2004

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AFRIGRAPH04: 3rd International Conference on Computer Graphics, Virtual Reality, Visualization and Interaction in Africa

November 3 - 5, 2004

Stellenbosch, South Africa

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Overall Acceptance Rate 47 of 90 submissions, 52%

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Cited By

Bléron AVergne RHurtut TThollot JWyvill BFu H(2018)Motion-coherent stylization with screen-space image filtersProceedings of the Joint Symposium on Computational Aesthetics and Sketch-Based Interfaces and Modeling and Non-Photorealistic Animation and Rendering10.1145/3229147.3229163(1-13)Online publication date: 17-Aug-2018
https://dl.acm.org/doi/10.1145/3229147.3229163
Wood JIsenberg PIsenberg TDykes JBoukhelifa NSlingsby A(2018)Sketchy Rendering for Information VisualizationIEEE Transactions on Visualization and Computer Graphics10.1109/TVCG.2012.26218:12(2749-2758)Online publication date: 28-Dec-2018
https://dl.acm.org/doi/10.1109/TVCG.2012.262
Limberger DFiedler CHahn STrapp MDollner J(2016)Evaluation of Sketchiness as a Visual Variable for 2.5D Treemaps2016 20th International Conference Information Visualisation (IV)10.1109/IV.2016.61(183-189)Online publication date: Jul-2016
https://doi.org/10.1109/IV.2016.61
Herring DMcGraw T(2016)Inter-color NPR Lines: A Comparison of Rendering TechniquesThe Computer Games Journal10.1007/s40869-016-0022-35:1-2(39-53)Online publication date: 22-Jul-2016
https://doi.org/10.1007/s40869-016-0022-3
Winnemöller H(2012)NPR in the WildImage and Video-Based Artistic Stylisation10.1007/978-1-4471-4519-6_17(353-374)Online publication date: 30-Oct-2012
https://doi.org/10.1007/978-1-4471-4519-6_17
Wang H(2008)A Non-Stroke Based Method to Generate Sketching Style from Original ImageProceedings of the 2008 Congress on Image and Signal Processing, Vol. 3 - Volume 0310.1109/CISP.2008.80(195-200)Online publication date: 27-May-2008
https://dl.acm.org/doi/10.1109/CISP.2008.80
House DSingh M(2007)Line Drawing as a Dynamic Process15th Pacific Conference on Computer Graphics and Applications (PG'07)10.1109/PG.2007.62(351-360)Online publication date: Oct-2007
https://doi.org/10.1109/PG.2007.62
Chiang CHsueh YLiu D(2007)Real-Time Image-Based Stylistic Rendering Using Graphics Hardware Acceleration2007 IEEE Symposium on Computational Intelligence in Image and Signal Processing10.1109/CIISP.2007.369209(438-443)Online publication date: Apr-2007
https://doi.org/10.1109/CIISP.2007.369209
(2006)Sketchy Illustrations for Presenting the Design of Interactive CSGProceedings of the conference on Information Visualization10.1109/IV.2006.97(772-777)Online publication date: 5-Jul-2006
https://dl.acm.org/doi/10.1109/IV.2006.97
Bhattacharjee SAdabala N(2006)Texture guided realtime painterly rendering of geometric modelsProceedings of the 5th Indian conference on Computer Vision, Graphics and Image Processing10.1007/11949619_28(311-320)Online publication date: 13-Dec-2006
https://dl.acm.org/doi/10.1007/11949619_28

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