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bflatasticandClaude Opus 5.5
178f99d60e
Asset Export, File › Export, Save for Web and Object › Rasterize drew each shape with its own smoothed edge, so where two shapes met edge to edge (Divide, Shape Builder, abutting art) both half-covered the pixels on the line and the background showed through as a thin ghost border. With Art Optimized (the default) these now supersample, as the option's name in Illustrator says: the art is drawn with hard edges at four times the size (three or two times for large images, within a 40-megapixel budget and the renderer's 65,535-pixel side) and each block averaged into one pixel. Pixels shared by two shapes are fully owned by one or the other at the finer size, so no seam is left, and the outer edges are still smooth. The canvas keeps shape-by-shape smoothing for speed; None and Type Optimized are unchanged. RenderOptions::supersample turns it on (exports and Rasterize set it). A render test checks two triangles sharing a diagonal: a seam with shape-by-shape smoothing, none supersampled, and the factor's limits. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>