发明授权
- 专利标题： Graphics processor and system for determining colors of the vertices of a figure
- 专利标题（中）： 用于确定图形顶点颜色的图形处理器和系统
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申请号： US10223600申请日： 2002-08-20
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公开(公告)号： US06756981B2公开(公告)日： 2004-06-29
- 发明人: Katsunori Suzuki , Ryo Fujita , Kazuyoshi Koga , Yuichi Abe , Mitsuru Soga , Kazuhisa Takami , Koyo Katsura , Hideki Fujii , Kazunori Oniki
- 申请人： Katsunori Suzuki , Ryo Fujita , Kazuyoshi Koga , Yuichi Abe , Mitsuru Soga , Kazuhisa Takami , Koyo Katsura , Hideki Fujii , Kazunori Oniki
- 优先权： JP8-004517 19960116
- 主分类号： G06T1500
- IPC分类号： G06T1500
摘要：
A graphics processor comprises: a light source table holding light source data; a conversion unit for converting the light source data to be set in the light source table from a float type (single-precision floating point real number type) into an int type (integer type); an inner product calculation unit for calculating the inner products of normal directions, light source directions and sight line directions at the vertices based on the light source data; and a color calculation unit for performing light source computations based on the calculated inner products to determine the colors of the vertices.
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