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A real-time three-dimensional graphics display
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Available under University of Tasmania Standard License.
The visible surface problem for three dimensional objects is examined from a global point of view in which planar surfaces derived from convex three-dimensional objects are regarded as the natural display elements. By retaining global information on surface and object relationships it is possible to considerably simplify the resolution of visible surfaces for a large class of realistic objects. Implementation of this approach suggests a display in which surfaces written to the display device can overlay and obscure previous picture information in the manner of an oil painting. A display system is proposed in which this is implemented by a large buffer memory which holds a complete point-by-point description of the picture in low-cost MOS shift-registers. By combining new data to be entered in the memory in a variety of ways with the data already present, it is possible to considerably enhance the displayÃ�Â�Ã�Â�Ã�Â�Ã�Â¢Ã�Â�Ã�Â�Ã�Â�Ã�Â�Ã�Â�Ã�Â�Ã�Â�Ã�Â�s capabilities. The buffer memory also allows an easy match of the display system to conventional (TV) video equipment.
|Keywords:||real-time display, real-time graphics, three-dimensional graphics, visible surface problem, picture processing, picture buffer memory, display buffer, MOS memory, TV display, TV video|
|Journal or Publication Title:||Australian Computer Journal|
|Publisher:||Australian Computer Society Inc|
|Page Range:||pp. 15-20|
|Date Deposited:||03 Jan 2005|
|Last Modified:||18 Nov 2014 03:10|
|Item Statistics:||View statistics for this item|
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