Graphics system and method for rendering independent 2D and 3D objects using pointer based display list video refresh operations
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United States of America Patent
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Feb 11, 2003
Grant Date -
Oct 31, 2002
app pub date -
Oct 4, 2001
filing date -
Apr 27, 1998
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Abstract
A spanning based method for rendering and display of 3D graphical data on a display device. The method first parses the geometry data, generates independent vertex-sorted geometric primitives (e.g., triangles) and then performs setup on the geometric primitives. The method then computes horizontal segments that make up each triangle, performs a Y sort of the triangles for each span line, and performs an X sort of triangle segments and vertices for each span line. The method then performs a Z rules determination for each span line to discard or reject hidden segments. The method then constructs the 3-D VDRL list for each span line comprising pointers which reference viewed triangle spans. During execution, the 3-D VDRL is read and interpreted to generate pixel data. The pixel data includes the viewed triangle spans and may include texture data or other data referenced by the VDRL.
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- INTELLECTUAL VENTURES I LLC
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Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Alvarez, II Manuel J | Austin, TX | 15 | 1640 |
Dye, Thomas A | Austin, TX | 49 | 4828 |
Geiger, Peter D | Austin, TX | 8 | 787 |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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