Google Inc.

Gilles Debunne

James J Shuma

Chet Haase

Philip S Milne

Mechanisms for more efficiently and accurately performing anti-aliasing techniques. A bounding box for a line can be generated that includes both a central region of the line and one or more boundary regions that have various levels of opacity. Vertices for the bounding box can be provided to any of a variety of appropriate entities to interpolate pixel locations within the bounding box and to determine various levels of opacity for pixels, such as vertex shaders and/or pixel shaders. Various techniques can be used to determine a pixel's membership value within one or more of the boundary regions of a bounding box, such as using a distance from an edge of a central region to a center of the pixel and/or an area of the pixel that is located inside the boundary region.

Anti-aliasing techniques

A computer-implemented method for displaying shadowing effects includes displaying, on a computing device, a visual object that has a first edge and a second edge that is different from the first edge; generating a shadow for the visual object using a first shadowing technique along the first edge; generating, along the second edge, shading for the visual object using a technique that differs from the first shadowing technique; and updating the shadow and the shading substantially simultaneously with movement of the visual object by a user of the computing device.

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Nages, France

Gilles Debunne