Hardware accelerated anti-aliased primitives using alpha gradients
AssigneeMicrosoft Corporation
InventorsChristopher Raubacher, Gregory Swedberg, Ashraf Michail, Michael Kallay
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AssigneeMicrosoft Corporation
InventorsChristopher Raubacher, Gregory Swedberg, Ashraf Michail, Michael Kallay
Estimating the term…
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.
A method for reducing aliasing effects for a given graphics object to be rendered, comprising:
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A computer-readable medium for reducing aliasing effects for a given graphics object to be rendered, having stored thereon at least one computer-executable module comprising computer executable instructions for performing a method, the method comprising:
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A computer device for reducing aliasing effects for a given graphics object to be rendered, comprising:
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Dependencies are inferred from the claim text.