Pencil strokes for vector based drawing elements
US8081187B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2006 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | Sep 24, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/125
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the invention provide techniques for generating displays of vector drawing elements that have the appearance of being hand drawn using traditional media materials, such as a pencil. Multiple pencil strokes to be rendered on top of each other and the structure of the simulated paper surface remains constant, generating a realistic appearance for multiple rendered pencil strokes. A variety of physical characteristics of pencils and paper surfaces may be specified, and a convincing appearance may be achieved by modeling these parameters in software, and speed may be realized by rendering the pencil effect using a shader program executed on graphics hardware.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.