Visual display systems of the computer generated image type
First Claim
1. In a visual display system of the computer generated image type, for a ground-based flight simulator, providing a rectangular raster scanned, perspective-transformed, pilot'"'"'s visual display of a simulated textured surface, the improvement comprising the provision of a surface detail generator comprising a perspective transformation computer and a surface texture detail store, the perspective transformation computer being a pipelined calculator for computing in real time the perspective transformation from the display system display plane to the simulated surface plane continuously during simulated flight, and correspondingly scanning the surface texture detail store to provide texture for each element of the said rectangular raster scanned pilot'"'"'s visual display.
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Abstract
A visual display system of the computer generated image type, for a ground based flight-simulator having a rectangular raster-scanned display and having a surface detail information store for providing a visual display of textured surfaces in perspective during simulated flight. The system includes a surface detail generator comprising a perspective transformation computer and a surface detail store. The perspective transformation computer is organized as a pipeline processor to computete in real time the perspective transformation from the textured surface (ground) plane to the display plane. Scanning of the surface detail store is controlled in a manner comparable with a trapezium scan of a photographic image, for the purpose of the perspective transformation.
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Citations
6 Claims
- 1. In a visual display system of the computer generated image type, for a ground-based flight simulator, providing a rectangular raster scanned, perspective-transformed, pilot'"'"'s visual display of a simulated textured surface, the improvement comprising the provision of a surface detail generator comprising a perspective transformation computer and a surface texture detail store, the perspective transformation computer being a pipelined calculator for computing in real time the perspective transformation from the display system display plane to the simulated surface plane continuously during simulated flight, and correspondingly scanning the surface texture detail store to provide texture for each element of the said rectangular raster scanned pilot'"'"'s visual display.
Specification