The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 2019
Filed:
Nov. 06, 2017
Geomerics Ltd, Cambridge, GB;
Graham Paul Hazel, Cambridge, GB;
Arm Limited, Cambridge, GB;
Abstract
To simulate the effect of shadows on specular lighting in an image being rendered, a specular volume is determined for a region of the image being rendered and used to determine the region of a light source that could provide a specular lighting contribution in the frame region. A set of geometry that could cast a shadow in the frame region is then determined and used, together with the determined region of the light source that could provide a specular lighting contribution, to determine a specular light source visibility parameter for sampling positions in the frame region. The determined specular light source visibility parameters are then used to modulate the specular lighting from the light source when shading the geometry in the frame region to produce the rendered output image for the frame region.