发明名称 Hardware accelerated anti-aliased primitives using alpha gradients
摘要 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.
申请公布号 US2004135795(A1) 申请公布日期 2004.07.15
申请号 US20030341168 申请日期 2003.01.13
申请人 MICROSOFT CORPORATION. 发明人 RAUBACHER CHRISTOPHER;SWEDBERG GREGORY D.;MICHAIL ASHRAF A.;KALLAY MICHAEL
分类号 G06T11/40;G09G5/00;(IPC1-7):G09G5/00 主分类号 G06T11/40
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