Patent Document ID: 6023279
Application ID: 08781104
Patent Status: 1

Claim One:
1. A method for generating on a display a graphical image of a complex structure represented by a plurality of objects, the method comprising: (a) projecting a plurality of rays from a given vision coordinate, and for each projected ray, (i) determining which objects in the plurality of objects are intersected by the ray; (ii) determining which object, among the objects intersected by the ray, is closest to the given vision coordinate; and (iii) adding the closest object to a set of visible objects; and (b) as objects are added to the set of visible objects, for each object in the set of visible objects, (i) reading the object from the set of visible objects as objects are added to the set of visible objects; (ii) if the object is visible from the current vision coordinate, drawing the object on the display; and (iii) if the object is not visible from the current vision coordinate, discarding the object from the set of visible objects.