Title:
RENDERING METHOD, DEVICE THEREFOR, LUMINANCE VALUE SMOOTHING METHOD AND DEVICE THEREFOR
Document Type and Number:
Japanese Patent JPH1079045
Kind Code:
A
Abstract:
To render a spot light with texture at a high speed.
At the time of rendering a three-dimensional space with the spot light source of a conical angle θ, the surface of an object within the three- dimensional space is meshed to be plural elements 310 at first. Then a radiosity from the spot light source is calculated with respect to each element included within the conical angle at the time of looking from the spot light source 320. After then, the luminance value of each vertex of each element is calculated from the radiosity calculated for each element 330. Then through the use of the luminance value of each vertex of each element, Gouraud shading is executed 380 to display the result on a display or the like.
Inventors:
AONO MASAKI
OBUCHI RYUTARO
MUROHASHI SHIGEO
OBUCHI RYUTARO
MUROHASHI SHIGEO
Application Number:
JP19375296A
Publication Date:
March 24, 1998
Filing Date:
July 23, 1996
Export Citation:
Assignee:
IBM
International Classes:
G06T15/80; (IPC1-7): G06T15/50
Attorney, Agent or Firm:
Kiyoshi Goda (2 outside)
Previous Patent: HIDING SELECTION DEVICE AND ITS METHOD
Next Patent: METHOD AND DEVICE FOR DETECTING BREAKAGE BETWEEN PATCHES
Next Patent: METHOD AND DEVICE FOR DETECTING BREAKAGE BETWEEN PATCHES