Computing illumination of an elongated shape having a noncircular cross section
US11227431B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 2021 |
| Grant date | Jan 18, 2022 |
| Priority date | — |
| Expiry date | Jul 15, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2210/16
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The system obtains an indication of a shape of a cross-section of an elongated shape, and an orientation of the shape. Based on the shape of the cross-section of the elongated shape and the orientation of the shape, the system creates a nonuniform distribution of random numbers mapping uniformly distributed input values to multiple points on the surface of the elongated shape. The system provides an input value randomly selected from a uniform distribution of random numbers to the nonuniform distribution of random numbers to obtain a point among the multiple sample points on the surface of the elongated shape. The system applies a function to the input value to obtain an indication of a normal associated with the sample point among the multiple sample points. Finally, the system computes an illumination of the elongated shape using the normal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.