发明名称 IMPROVEMENTS IN VISIBILITY CALCULATIONS FOR 3D COMPUTER GRAPHICS
摘要 Disclosed is a method of reducing the complexity of hidden surface removal i n 3D graphic systems. A fuzzy projection (FF) of a surface (SU) as seen from a number of viewpoints (VP) in a boundin g 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.
申请公布号 CA2112464(C) 申请公布日期 2002.05.14
申请号 CA19922112464 申请日期 1992.06.19
申请人 发明人 LIP, LIM H.;LIP, LIM HONG
分类号 G06T15/40 主分类号 G06T15/40
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