Patent · US Active

Systems and methods for soft shadowing in 3-D rendering using identification of nearest-hit primitive

US10529120B2 · kind B2 · utility

0Cited by

0References

19Claims

0Family size

Assignee

Imagination Technologies Limited · GB

Inventors

Justin DeCell · San Francisco, US
Luke T. Peterson · San Francisco, US

Key dates

Filing date	Jul 9, 2018
Grant date	Jan 7, 2020
Priority date	—
Expiry date	Jul 9, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG06T17/005
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Graphics processing systems and methods provide soft shadowing effects into rendered images. This is achieved in a simple manner which can be implemented in real-time without incurring high processing costs so it is suitable for implementation in low-cost devices. Rays are cast from positions on visible surfaces corresponding to pixel positions towards the center of a light, and occlusions of the rays are determined. The results of these determinations are used to apply soft shadows to the rendered pixel values.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.