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. 26, 2016
Filed:
Apr. 30, 2013
Microsoft Corporation, Redmond, WA (US);
Anthony John Rolls Hodsdon, Seattle, WA (US);
Blake Douglas Pelton, Redmond, WA (US);
MICROSOFT TECHNOLOGY LICENSING, LLC, Redmond, WA (US);
Abstract
Methods, systems, and computer-storage media for efficiently tessellating two dimensional (2-D) curves using a graphics pipeline running on a graphics processing unit (GPU) are provided. A central processing unit (CPU) converts a geometry having one or more 2-D curves into an intermediate tessellation having at least one Bezier fan with a fan origin and four control points. The intermediate tessellation is sent on to the graphics pipeline. A hull shader in the graphics pipeline is configured to approximate the Bezier fan curve by subdividing the curve into a defined number of triangles based on a maximum value of a width or a height of a bounding box containing the four control points of the Bezier fan. A domain shader in the graphics pipeline is configured to determine a vertex position for each of the defined triangles along the curve of the Bezier fan.