US 6,982,724 B2 | ||
Method for antialiasing an object represented as a two-dimensional distance field in object-order | ||
Sarah F. Frisken, Cambridge, Mass. (US); and Ronald N. Perry, Cambridge, Mass. (US) | ||
Assigned to Mitsubishi Electric Research Labs, Inc., Cambridge, Mass. (US) | ||
Filed on Mar. 25, 2003, as Appl. No. 10/396,861. | ||
Prior Publication US 2004/0189662 A1, Sep. 30, 2004 | ||
Int. Cl. G09G 5/00 (2006.01) |
U.S. Cl. 345—611 | 134 Claims |
1. A method for antialiasing a region of a two-dimensional distance field representing an object, wherein the two-dimensional
distance field is partitioned into cells, each cell including a method for reconstructing the two-dimensional distance field
within the cell, comprising:
identifying a set of cells of a two-dimensional distance field representing an object, the set of cells associated with a
region of the two-dimensional distance field to be rendered;
locating a set of pixels associated with the region;
specifying a set of components for each pixel in the set of pixels; and
determining an antialiased intensity for each component of each pixel in the set of pixels, the determining further comprising:
determining a distance for the component of the pixel from the set of cells; and
mapping the distance to the antialiased intensity of the component of the pixel.
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