Rendering method and apparatus, and method and apparatus for smo

Details Rendering method and apparatus, and method and apparatus for smo Rendering method and apparatus, and method and apparatus for smo

1997-07-23

1999-08-10

Nguyen, Phu K.

Computer graphics processing and selective visual display system

Computer graphics processing

Graph generating

G06T 520

Patent

active

059366338

ABSTRACT:
In order to render a three-dimensional space which has a spotlight source with a cone angle .theta. at high speed and with better quality, an object's surface in the three-dimensional space is first meshed into a plurality of elements. Then, a radiosity from the spotlight source is calculated for each element which is included inside of the cone angle .theta. when viewed from the spotlight source. Thereafter, an intensity-value at each vertex of each element is calculated from the radiosity calculated for each element. Next, Gouraud shading is performed by using the intensity-value at each vertex of each element, and the result is displayed on a display.

REFERENCES:
patent: 5394518 (1995-02-01), Friedman et al.
patent: 5444832 (1995-08-01), Suzuki
patent: 5598185 (1997-01-01), Holmgren
patent: 5649083 (1997-07-01), Barkans et al.
patent: 5781176 (1998-07-01), Rey et al.

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