Name
Abstract | ||
|---|---|---|
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. |
Year | DOI | Venue |
|---|---|---|
2003 | 10.1145/602330.602353 | Afrigraph |
Keywords | Field | DocType |
non-photorealistic rendering,hatching,geometric optimisations,human-error component,edge-fading,present work,geometric perturbation,rendering,pencil,chalk,existing algorithm,possible rendering optimisations,computed visibility-function,3d texturing,coal,uncertainty-functions,temporal coherence,rendering stage,textured silhouette,3-d texture,cost effectiveness,non photorealistic rendering,human error | Computer vision,Overhead (computing),Cache,Silhouette,Computer science,Non-photorealistic rendering,Network topology,Coherence (physics),Human–computer interaction,Pencil (mathematics),Artificial intelligence,Rendering (computer graphics) | Conference |
ISBN | Citations | PageRank |
1-58113-643-9 | 2 | 0.37 |
References | Authors | |
11 | 2 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Holger Winnemöller | 1 | 330 | 19.35 |
| Shaun Bangay | 2 | 97 | 17.72 |