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:
Apr. 14, 1998
Filed:
Feb. 08, 1996
ITRI-Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A process and apparatus are disclosed for obtaining a texture color value C.sub.r for an object surface point from two texture color values C.sub.ri and C.sub.rj (which themselves may be interpolated texture color values), of texture data points C.sub.i and C.sub.j, respectively. The object surface point is a distance W from the texture data point C.sub.i and a distance 1-W from the object surface point C.sub.j, where W is an n-bit value. The process includes the steps of multiplying each of the texture colors C.sub.ri and C.sub.rj by each integer from 0 to 2.sup.n-1 to produce 2.sup.n -1 products for each color. The product of C.sub.ri with 2.sup.n-1 -W' and the product of C.sub.rj with W' are selected from these produced products, where W' is the rounded product of W and 2.sup.n-1. The two selected products are added together to produce the sum (2.sup.n-1 -W').multidot.C.sub.ri +W'.multidot.C.sub.rj, and the sum thus produced is divided by 2.sup.n-1 to produce the interpolated color. The apparatus for producing the interpolated color uses integer arithmetic for producing the texture color and can operate in a pipelined fashion.