Dynamic soft shadow
US10650578B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2018 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Aug 7, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/80
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Dynamic soft shadows may be generated without resorting to computationally-expensive multiple render passes and sampling, or lightmap generation. With disclosed systems and methods, a dynamic soft shadow may be rendered in a single pass, which is sufficiently efficient to run on an untethered virtual reality (VR) device, such as a head mounted device (HMD). Despite the efficiency, the shadow quality may be markedly superior to those generated with other methods. In some embodiments, a script may be used with a shader to render a shadow having a realistic size, shape, position, fading factor and sharpness, based on a position and size of a shadow casting element and a light vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.