PixelFlow: High-Speed Rendering Using Image Composition

PixelFlow: High-Speed Rendering Using Image Composition (1992)

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by Steven Molnar , John Eyles , John Poulton

Venue:	Computer Graphics (Proc. SIGGRAPH
Citations:	155 - 6 self

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Datum	Value	Source
TITLE	PixelFlow: High-Speed Rendering Using Image Composition	SVM HeaderParse 0.2
AUTHOR NAME	Steven Molnar	SVM HeaderParse 0.2
AUTHOR AFFIL	Department of Computer Science; University of North Carolina	SVM HeaderParse 0.2
AUTHOR ADDR	Chapel Hill, NC 27599-3175	SVM HeaderParse 0.2
AUTHOR NAME	John Eyles	SVM HeaderParse 0.2
AUTHOR AFFIL	Department of Computer Science; University of North Carolina	SVM HeaderParse 0.2
AUTHOR ADDR	Chapel Hill, NC 27599-3175	SVM HeaderParse 0.2
AUTHOR NAME	John Poulton	SVM HeaderParse 0.2
AUTHOR AFFIL	Department of Computer Science; University of North Carolina	SVM HeaderParse 0.2
AUTHOR ADDR	Chapel Hill, NC 27599-3175	SVM HeaderParse 0.2
ABSTRACT	We describe PixelFlow, an architecture for high-speed image generation that overcomes the transformation- and frame-buffer– access bottlenecks of conventional hardware rendering architectures. PixelFlow uses the technique of image composition: it distributes the rendering task over an array of identical renderers, each of which computes a fill-screen image of a fraction of the primitives. A high-performance image-composition network composites these images in real time to produce an image of the entire scene. Image-composition architectures offer performance that scales linearly with the number of renderers; there is no fundamental limit to the maximum performance achievable using this approach. A single PixelFlow renderer rasterizes up to 1.4 million triangles per second, and an n-renderer system can rasterize at up to n times this basic rate. PixelFlow performs antialiasing by supersampling. It supports defemed shading with separate hardware shaders that operate on composite images containing intermediate pixel data. PixelFlow shaders compute complex shading algorithms and procedural and image-based textures in real-time. The shading rate is independent of scene complexity. A Pixel Flow system can be coupled to a parallel supercomputer to serve as an immediatemode graphics server, or it can maintain a display list for retainedmode rendering. The PixelFlow design has been simulated extensively at high level. Custom chip design is underway. We anticipate a working system by late 1993.	SVM HeaderParse 0.2
YEAR	1992	INFERENCE
VENUE	Computer Graphics (Proc. SIGGRAPH	INFERENCE
VENUE TYPE	JOURNAL	INFERENCE
PAGES	231--240	INFERENCE
CITATIONS	19 found	ParsCit 1.0