发明名称 |
METHOD AND APPARATUS FOR TILE BASED DEPTH BUFFER COMPRESSION |
摘要 |
<p>A method and apparatus are provided for compressing depth buffer data in a three dimensional computer graphics system. The depth buffer data is divided into a plurality of rectangular tiles corresponding to rectangular areas in an associated image. The number of starting point locations in a tile are identified and a difference in depth value determined between each starting point and depth values of each of at least two further locations. Using this information depth values are predicted at a plurality of other locations in the tile and where these predicated values substantially match an actual depth value at location is assigned to a plane associated with respective starting point. Starting point location depth value difference data and plane assignment data for each tile and locations in the tile not assigned to a plane, then stored.</p> |
申请公布号 |
WO2012098365(A1) |
申请公布日期 |
2012.07.26 |
申请号 |
WO2012GB00059 |
申请日期 |
2012.01.20 |
申请人 |
IMAGINATION TECHNOLOGIES LIMITED;FISK, DONALD |
发明人 |
FISK, DONALD |
分类号 |
G06T9/00;G06T15/00 |
主分类号 |
G06T9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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