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:
Jul. 05, 2011
Filed:
Jul. 02, 2010
Daniel K. Baker, Bellevue, WA (US);
Michael V. Oneppo, Kirkland, WA (US);
Samuel Glassenberg, Kirkland, WA (US);
Peter-pike J. Sloan, Bellevue, WA (US);
John Rapp, Seattle, WA (US);
Daniel K. Baker, Bellevue, WA (US);
Michael V. Oneppo, Kirkland, WA (US);
Samuel Glassenberg, Kirkland, WA (US);
Peter-Pike J. Sloan, Bellevue, WA (US);
John Rapp, Seattle, WA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
In a technique for rendering non-linear BRDFs that are stable in both the temporal and spatial domains, without serious interruption to the content creation pipeline used in most games, non-linear content is linearized by rendering in texture space at a fixed resolution. A MIP-map chain is calculated from this texture. The complete MIP-map chain is used for rendering on a display device. Low resolution reflectance parameters are used to approximate the highest resolution reflectance parameters as the object becomes smaller on the display device. The low resolution reflectance parameters are calculated using non linear fitting techniques.