Procedural Primitives in a High Performance, Hardware Accelerated, Z-Buffer Renderer

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Abstract

In the past, very few types of primitives have been directly supported by graphics accelerators, in spite of the fact that a great variety of complex primitives are routinely used for high-quality rendering. We explore the issues associated with the support of arbitrary procedural primitives, and describe a machine-independent language as well as an extension to OpenGL designed to support userdefined procedural primitives. We have created a prototype implementation on PixelFlow, a highperformance graphics accelerator.