Computer graphics processing and selective visual display system – Computer graphics processing – Graph generating
Patent
1997-10-09
2000-08-22
Zimmerman, Mark K.
Computer graphics processing and selective visual display system
Computer graphics processing
Graph generating
345431, G06T 1140
Patent
active
061080071
ABSTRACT:
A method, system, and computer program product are provided for increasing interpolation bit precision using multi-channel texture mapping. According to the present invention, pixels are separated into respective groups of data segments in multiple texture channels. The groups of data segments in each texture channel are interpolated in parallel to obtain an interpolated pixel value for each texture channel. The interpolated pixel value for each texture channel for a sample is stored in a frame buffer. An accumulation operation, such as, blending, is used to accumulate interpolated pixel values for each texture channel for a number of samples in the frame buffer. In one example, interpolation according to the present invention is used in computer tomography and volume rendering using texture mapping. In another example of the present invention, interpolation is used in computer graphics processing using texture mapping. High-precision pixels having a number of bits greater than a precision bit threshold of the limited-precision graphics hardware can be interpolated (resampled and accumulated) using multi-channel texture mapping provided in limited-precision graphics hardware.
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Nguyen Kimbinh T.
Silicon Graphics Inc.
Zimmerman Mark K.
LandOfFree
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