Method and apparatus for representing, manipulating and rendering solid shapes using volumetric primitives
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United States of America Patent
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Jul 29, 2003
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N/A
app pub date -
Jun 22, 1999
filing date -
Jul 22, 1998
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Abstract
A method and apparatus for modeling three-dimensional solid objects are provided. The method of the present invention uses the concept of volumetric objects. Each volumetric object is a decoupled combination of volumetric geometry and volumetric appearance. To be rendered, one or more volumetric objects are tessellated into a series of one or more volumetric primitives. The volumetric primitives are then polygonized. The result is a list of two-dimensional polygons. The list of polygons is then depth sorted, colored, shaded and texture-mapped with the voxel data that forms the basis for the volumetric object. The polygons are composited together in the frame buffer, or other device, to form the final displayable image.
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