Image compression to reduce pixel and texture memory requirements in a real-time image generator
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United States of America Patent
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Dec 7, 1999
Issued Date -
N/A
app pub date -
Jun 27, 1996
filing date -
Aug 4, 1995
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Abstract
A method for supporting image compression in a real-time graphics rendering pipeline includes sorting object geometry for a scene among image regions called chunks. The object geometry for each chunk is rendered separately, and in a serial fashion. After the object geometry is completely rendered for a given chunk, the pixel data for that chunk is compressed and stored. Each chunk of an image can be generated and stored in this manner. To assemble a display image, compressed image chunks are retrieved, decompressed, and temporarily cached. Decompressed image data in the cache is combined into a display image. The process of generating a display image with compression can be performed at real-time rates.
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