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:
May. 05, 1998
Filed:
May. 08, 1996
Shenchang Eric Chen, Saratoga, CA (US);
Live Picture, Inc., Scotts Valley, CA (US);
Abstract
A method and apparatus for rendering perspective views of a 3D scene. The method of the present invention includes the steps of: providing an environment map containing pixel values representing the scene; generating a scanline-coherent look-up table containing environment map indices ordered in scanlines; mapping scanlines of a viewing plane to a portion of the look-up table scanlines based upon a pitch angle of the perspective view to be rendered; locating pixel values in a portion of the environment map based on a yaw angle and based on the environment map indices stored in the portion of the look-up table scanlines to which the viewing plane scanlines are mapped; writing the located pixel values into the viewing plane; and rendering the viewing plane onto a display.