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Item The AIDA Display Processor System Architecture(The Eurographics Association, 1990) Evans, S. R.; Grimsdale, R. 1.; Lister, P. F.; Nimmo, A. D.; Richard Grimsdale and Arie KaufmanThis paper describes the Advanced Image Display Architecture, AIDA. The primary aims were to design a graphics display subsystem capable of satisfying the needs of both high performance workstations and vehicle simulator visual systems. AIDA can accept planar triangle primitives which have been transformed, clipped and projected by preceding stages. The system implements many desirable features including modularity, anti-aliasing, translucency, pixel-rate hidden surface removal and Gouraud shading. AIDA has been designed to take advantage of ASIC technology in the implementation of its processing units.Item MARTI-A Multiprocessor Architecture for Ray Tracing Images(The Eurographics Association, 1990) Hebert, M-P.; McNeill, M. D. J.; Shah, B.; Grimsdale, R. 1.; Lister, P. F.; Richard Grimsdale and Arie KaufmanMultiprocessor systems are well suited to ray tracing, since each ray can be traced independently. However, the large databases required to model complex scenes create problems of data access. In this paper we propose a multiprocessor architecture for ray tracing which removes the need for duplication of the database at processor level. The database is held on a group processor basis, and resides in shared memory. Many of these groups, or clusters, can be replicated to form a highly parallel multiprocessing system. Results of a software simulation of the architecture are promising, indicating that a large number of processors per cluster is possible.