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1. 发明申请

US20060209065A1 Method and apparatus for occlusion culling of graphic objects 审中-公开
标题翻译：图形对象遮挡剔除的方法和装置
公开(公告)号：US20060209065A1
公开(公告)日：2006-09-21
申请号：US11298167
申请日：2005-12-08
申请人： Eugene Lapidous , Jianbo Zhang , Guofang Jiao , Bozhan Chen , Ji Zhou
发明人： Eugene Lapidous , Jianbo Zhang , Guofang Jiao , Bozhan Chen , Ji Zhou
IPC分类号： G06T15/40
CPC分类号： G06T15/40
摘要： A method of occlusion culling of graphic objects, comprising the steps of storing a first mask and one or more depth values associated with areas inside and outside the mask for a pre-defined region, and evaluating the visibility of the primitive covering the same region, wherein visibility evaluation begins after the computation of the coverage mask of the primitive in the region, and the computation of one or more depth values representing the pixels of the primitive. The method of the present invention is a real-time method of generating per-region coverage mask and associated Z values after the second primitive is rendered in the same region, which can maximize the bandwidth savings for Z read for both overlapping and non-overlapping primitives, with different relations between their depth values.
摘要翻译：一种图形对象的遮挡剔除方法，包括以下步骤：存储第一掩码和与掩模内部和外部的区域相关联的一个或多个深度值用于预定义区域，以及评估覆盖相同区域的图元的可视性，其中在计算区域中的原语的覆盖掩码之后开始可视性评估，以及计算表示图元的像素的一个或多个深度值。本发明的方法是在将第二原语呈现在相同区域中之后生成每区域覆盖掩码和相关联的Z值的实时方法，这可以使重叠和非重叠的Z读取的带宽节省最大化原始图像，其深度值之间具有不同的关系。

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