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:
Aug. 06, 2002
Filed:
Mar. 11, 1998
Applicant:
Inventor:
Ines Ernst, Berlin, DE;
Assignee:
GMD-Forschungszentrum Informationstechnik GmbH, Berlin, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/00 ;
U.S. Cl.
CPC ...
G09G 5/00 ;
Abstract
In an apparatus and method for representing computer-modeled objects comprising a plurality of adjacent polygon surfaces, the image impression in the corner points of the polygon surfaces is calculated according to a local illumination model, whereas the image impression of the remaining pixels is interpolated according to the Gouraud shading method, and a color or brightness value is additionally calculated for simulating a surface structure for each pixel, the value taking into consideration the influence of the surface structure on the image impression without necessitating a complicated calculation of the local illumination model in each pixel.