- Title
- Rendering optimisations for stylised sketching
- Creator
- Winnemöller, Holger
- Creator
- Bangay, Shaun D
- Subject
- To be catalogued
- Date Issued
- 2003
- Date
- 2003
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/432922
- Identifier
- vital:72913
- Identifier
- https://doi.org/10.1145/602330.602353
- Description
- We present work that specifically pertains to the rendering stage of stylised, non-photorealistic sketching. While a substantial body of work has been published on geometric optimisations, surface topologies, space-algorithms and natural media simulation, rendering-specific issues are rarely discussed in-depth even though they are often acknowledged. We investigate the most common stylised sketching approaches and identify possible rendering optimisations. In particular, we define uncertainty-functions, which are used to describe a human-error component, discuss how these pertain to geometric perturbation and textured silhouette sketching and explain how they can be cached to improve performance. Temporal coherence, which poses a problem for textured silhouette sketching, is addressed by means of an easily computed visibility-function. Lastly, we produce an effective yet surprisingly simple solution to seamless hatching, which commonly presents a large computational overhead, by using 3-D textures in a novel fashion. All our optimisations are cost-effective, easy to implement and work in conjunction with most existing algorithms.
- Format
- 7 pages
- Format
- Language
- English
- Relation
- Proceedings of the 2nd international conference on Computer graphics, virtual reality, visualisation and interaction in Africa
- Relation
- Winnemöller, H. and Bangay, S., 2003, February. Rendering optimisations for stylised sketching. In Proceedings of the 2nd international conference on Computer graphics, virtual Reality, visualisation and interaction in Africa (pp. 117-122)
- Relation
- Proceedings of the 2nd international conference on Computer graphics, virtual reality, visualisation and interaction in Africa volume 2003 number 1 117 122 2003 978-1-58113-643-2
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the ACM Digital Library Statement (https://libraries.acm.org/digital-library/policies#anchor3)
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Collections
Bangay, Shaun Douglas (Dr)
RU Department of Computer Science
SDG 09. Industry, Innovation and Infrastructure
| Thumbnail | File | Description | Size | Format | |||
|---|---|---|---|---|---|---|---|
| View Details Download | SOURCE1 | Rendering optimisations for stylised sketching.pdf | 674 KB | Adobe Acrobat PDF | View Details Download |