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The Metabuffer: A Scalable Multiresolution Multidisplay 3-D Graphics System Using Commodity Rendering Engines
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BibTeX
@MISC{Blanke_themetabuffer:,
author = {William Blanke and Chandrajit Bajaj and Donald Fussell and Xiaoyu Zhang},
title = {The Metabuffer: A Scalable Multiresolution Multidisplay 3-D Graphics System Using Commodity Rendering Engines},
year = {}
}
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Abstract
Many computer graphics applications require multiple visual displays that are rendered in real time. However, dividing and balancing the rendering workload among a number of CPUs and then sending it to the individual displays efficiently is a difficult task. This report details the design and software prototype for a novel new type of graphics framebuffer that takes in RGB color, Z order, and alpha information from multiple COTS rendering engines, collages them, and then outputs composited images to multiple displays in a tiled configuration. The individual COTS rendering engines define their image data as viewports that can be located anywhere in the display space and be of any size/resolution. For example, one graphics board could generate a low-resolution background image spanning multiple displays while other rendering engines could concentrate on more detailed images in the foreground. This flexibility lends itself to multiple display virtual reality arrangements and foveated vision systems. This report details the architecture of the Metabuffer and the results from a multithreaded software prototype written in C++. It shows that the Metabuffer provides a simple framework to its host PCs for effective utilization of multiple visual displays using COTS rendering engines and produces constant time image collaging with a minimum of latency regardless of geometry or number of image viewports.
Keyphrases
report detail software prototype multiple visual display novel new type simple framework image data display space detailed image multiple cot rendering engine size resolution rgb color individual cot effective utilization host pc many computer graphic application foveated vision system low-resolution background image real time display virtual reality arrangement latency regardless difficult task multiple display image viewports constant time image alpha information individual display tiled configuration graphic board
