Mixed-order compositing for images having three-dimensional painting effects
US9142056B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | May 18, 2012 |
| Grant date | Sep 22, 2015 |
| Priority date | — |
| Expiry date | Apr 13, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2219/2012
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Rendering 3D paintings can be done by compositing brush strokes embedded in space. Image elements are rendered into an image representable by a pixel array wherein at least some of the image elements correspond to simulated painting strokes. A method may include determining stroke positions in a 3D space, determining stroke orders, and for each pixel to be addressed, determining a pixel color value by determining strokes intersections with a view ray for that pixel, determining a depth order and a stroke order for intersecting fragments, each fragment having a color, alpha value, depth, and stroke order, assigning an intermediate color to each of the fragments, corresponding to a compositing of nearby fragments in stroke order, and assigning a color to the pixel that corresponds to a compositing of the fragments using the intermediate colors assigned to the fragments. The compositing may be done in depth order.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.