(19)
(11)EP 0 715 276 A3

(12)EUROPEAN PATENT APPLICATION

(88)Date of publication A3:
24.07.1996 Bulletin 1996/30

(43)Date of publication A2:
05.06.1996 Bulletin 1996/23

(21)Application number: 95118163.5

(22)Date of filing:  17.11.1995
(51)Int. Cl.6G06T 15/10
(84)Designated Contracting States:
DE ES FR GB SE

(30)Priority: 02.12.1994 JP 300026/94

(71)Applicant: SONY CORPORATION
Tokyo (JP)

(72)Inventors:
  • Oka, Masaaki, c/o Sony Corporation
    Tokyo (JP)
  • Suzuoki, Masakazu, c/o Sony Corporation
    Tokyo (JP)

(74)Representative: TER MEER - MÜLLER - STEINMEISTER & PARTNER 
Mauerkircherstrasse 45
81679 München
81679 München (DE)

 
Remarks:
A request for correction of description and drawings has been filed pursuant to Rule 88 EPC. A decision on the request will be taken during the proceedings before the Examining Division (Guidelines for Examination in the EPO, A-V, 3.).
 


(54)Method and apparatus for mapping texture


(57) In a real-time texture mapping system, a more solid and naturally-mapped image is obtained with a minimum of computation volume. The texture-mapping system adds a texture image to an area of a polygon which forms a fundamental unit of three-dimensional image information of an object to be displayed on a screen. A geometry transfer engine (GTE) 61 extracts representing points from the polygonal area. Then, coordinates of the thus extracted representing points are subjected to the perspective transformation. Thereafter, the representing points, after the perspective transformation, are subjected to the linear interpolation in a graphic processing unit (GPU) 62 so that the image is formed.