Hardware accelerated anti-aliased primitives using alpha...

Details Hardware accelerated anti-aliased primitives using alpha... Hardware accelerated anti-aliased primitives using alpha...

2006-05-23

2006-05-23

Bella, Matthew C. (Department: 2676)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S426000, C345S592000

Reexamination Certificate

active

07050067

ABSTRACT:
Systems and methods are provided for providing anti-aliasing by introducing a falloff area around a graphics object to be rendered. The falloff area is shaded, using Gouraud shading or texture mapping to reduce the aliasing effects of the graphics object. The outside edge of the falloff area is set to be fully transparent, and the inside edge to an opacity matching the outer edge of the graphics object being rendered. To counteract bloating effects, the graphics object is shrunk by half the width of the falloff area. While the width of the falloff area may vary, generally, the width of the falloff area stays constant. In one embodiment, this width corresponds to the edge or diagonal of the square area mapped to each pixel.

REFERENCES:
patent: 5861891 (1999-01-01), Becker
patent: 6057850 (2000-05-01), Kichury
patent: 6071193 (2000-06-01), Suzuoki
patent: 6366290 (2002-04-01), Dye et al.
patent: 6480201 (2002-11-01), Fushiki et al.
patent: 6529207 (2003-03-01), Landau et al.
Bala, K. et al., “Combining Edges and Points for Interactive Anti-Aliased Rendering”,Program of Computer Graphics Technical Report: PCG-02-3, Jan. 2003, 1-11.
Jouppi, N.P. et al., “Z3: An Economical Hardware Technique for High-Quality Antialiasing and Transparency”,Eurographics/SIGGRAPH Workshop on Graphics Hardware, Aug. 1999, 85-93.
Pighin, F. et al., “Progressive Previewing of Ray-Traced Images Using Image-Plane Discontinuity Meshing”,Proceedings of the 8thEurographics Workshop on Rendering, Jun. 16-18, 1997, 115-124.

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