Hybrid hidden-line processor and method
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United States of America Patent
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Sep 20, 2016
Grant Date -
Apr 4, 2013
app pub date -
Sep 29, 2011
filing date -
Sep 29, 2011
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Abstract
A method for providing hybrid hidden-line processing for a plurality of polygons representing tessellated image data, wherein each polygon comprises a plurality of edges, is provided. The method includes generating a back-facing plate comprising polygons on a back-facing side of a silhouette of the tessellated image data and a front-facing plate comprising polygons on a front-facing side of the silhouette of the tessellated image data. The method includes tracing the edges and identifying at least one visibility change pixel in each of a subset of the traced edges. The method includes, for each visibility change pixel, determining whether the traced edge is from the same plate as a polygon corresponding to the visibility change pixel. The method includes, for each traced edge that is determined to be from the same plate as the polygon corresponding to the visibility change pixel, displaying the traced edge.
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