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    • 9. 发明授权
    • Interface and method of interfacing between a parametric modelling unit and a polygon based rendering system
    • 在参数化建模单元和基于多边形的渲染系统之间进行接口的接口和方法
    • US07362328B2
    • 2008-04-22
    • US11638545
    • 2006-12-13
    • Simon FenneyJonathan Mark RedshawJohn RussellClifford Gibson
    • Simon FenneyJonathan Mark RedshawJohn RussellClifford Gibson
    • G06T17/00
    • G06T17/30G06T17/20
    • An interface for use in a 3-d graphics system comprising a parametric modelling unit for modelling objects as high order surfaces, and a polygon based rendering system for rendering polygon modelled objects for display. The interface comprises an input for receiving data and a subdivision unit coupled to the input for processing the data. The interface includes a converter coupled to the subdivision unit for determining from leaf patch data a first plurality of values representing vertices of tessellating polygons describing the leaf patch, and for determining from sub-leaf patch data a second plurality of values representing the vertices of tessellating polygons describing the sub-leaf patch. The interface also has a combiner, coupled to the converter, for combining the values to form leaf polygon data defining the polygon vertices at a first subdivision level, and an output coupled to the combiner for outputting the leaf polygon data.
    • 一种用于3-d图形系统的接口,包括用于将对象建模为高阶表面的参数建模单元,以及用于渲染用于显示的多边形建模对象的基于多边形的渲染系统。 接口包括用于接收数据的输入和耦合到输入的用于处理数据的细分单元。 接口包括耦合到细分单元的转换器,用于从叶片数据确定表示描绘叶片的镶嵌多边形的顶点的第一多个值,并且从子叶片块数据确定表示镶嵌顶点的第二多个值 描述子叶片的多边形。 接口还具有耦合到转换器的组合器,用于组合这些值以形成在第一细分级别定义多边形顶点的叶多边形数据,以及耦合到组合器的用于输出叶多边形数据的输出。