发明名称 |
AN INTERFACE AND METHOD OF INTERFACING BETWEEN A PARAMETRIC MODELLING UNIT AND A POLYGON BASED RENDERING SYSTEM |
摘要 |
An interface for use in a 3-D graphics system containing 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. |
申请公布号 |
EP1537539(A2) |
申请公布日期 |
2005.06.08 |
申请号 |
EP20030725375 |
申请日期 |
2003.05.08 |
申请人 |
IMAGINATION TECHNOLOGIES LIMITED |
发明人 |
FENNEY, SIMON;GIBSON, CLIFFORD;RUSSELL, JOHN;REDSHAW, JONATHAN, ALAN |
分类号 |
G06T17/30;G06T17/20 |
主分类号 |
G06T17/30 |
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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