Image generating apparatus and method of generating an image by

Details Image generating apparatus and method of generating an image by Image generating apparatus and method of generating an image by

1994-01-24

1996-12-10

Herndon, Heather R.

395124, 395127, 395132, G06T 1550

Patent

active

055839754

ABSTRACT:
An image generating apparatus used in the field of image processing such as Computer Graphics. The image generating apparatus comprises an input unit for setting data related to a shape of each polygon, an attribute-data-setting unit for setting physical-property attribute data of the polygons, a view-point-data setting unit for setting data related to a view point, a boundary-box-dividing unit for dividing a boundary box enclosing all the polygons into a set of voxels of equal-size with parameters for the boundary box and a linear conditional expression, a segment buffer for registering intersection data per segment for each light source consisting of a thread of a processor assigned for each segment on one polygon and a ray-intercepting polygon at the time of intensity computation per pixel, and an intensity computing unit for checking an intersection with the registered ray-intercepting polygon first when computing an adjacent pixel in the same segment.

REFERENCES:
patent: 4928250 (1990-05-01), Greenberg et al.
patent: 4945500 (1990-07-01), Deering
patent: 5394516 (1995-02-01), Winser
Foley, "Computer Graphics: Principles and Practice, Second Edition," Addison-Wesley Publishing Co. Inc., pp. 887, 890, 899, 902.
Rosenberg, "Dictionary of Computers, Information Processing & Telecommunications, Second Edition," p. 102.
Foley et al, "Computer Graphics: Principles & Practice," 2nd Edition, 1990; pp. 701-715, 776-777.

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