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:
Jun. 11, 1996
Filed:
Dec. 15, 1993
David C Tannenbaum, Hurley, NY (US);
Andrew D Bowen, Saugerties, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system and method for determining and applying the effect of light polarization on the rendering of graphics objects. A polarization state buffer is provided to maintain polarization state on a pixel by pixel basis for each pixel in a frame buffer. As graphics objects are rendered the polarization state information is updated based on the underlying opaque surface, the polarization state of the light, and the characteristics of non-opaque objects being drawn. Pixel intensity is adjusted based on the degree of polarization, and the angle of the polarization axis. An approximation of the pixel intensity function is implemented using standard hardware logic.