Rendering using analytic signed distance fields
US12002132B1 · kind B1 · utility
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24Claims
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Key dates
| Filing date | Mar 4, 2022 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Apr 16, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/005
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Various implementations disclosed herein include devices, systems, and methods that use an analytic approach to determine signed distance field (SDF) representations that represent one or more curves (e.g., glyphs that represent text) and cache the SDF representations for reuse in rendering the curves in similar rendering conditions. For example, the SDF representation may be re-used, based on determining that text is going to occupy a similar-sized portion of the device's display in multiple views. An SDF representation is recalculated if different conditions (e.g., substantial zooming in on the text) occur in different views.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.