Improvements in visibility calculations for 3d computer...

Details Improvements in visibility calculations for 3d computer... Improvements in visibility calculations for 3d computer...

G - Physics

06

F

G06F 15/72 (1990.01) G06T 15/40 (2006.01)

Patent

CA 2112464

Disclosed is a method of reducing the complexity of hidden surface removal in 3D graphic systems. A fuzzy projection (FF) of a surface (SU) as seen from a number of viewpoints (VP) in a bounding box (BB) is stored in a buffer (FA) having ele- ments (FE). A combination of all the patches (PT) of the surface (SU) viewed form a fuzzy region (FR) where surfaces can be either visible, hidden, or unable to be determined with certainty as to whether or not visible/hidden. A non-fuzzy region (NF) de- scribes those patches (PT) that are always visible.

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