stripFlattenTolerance top-level constant

double const stripFlattenTolerance

Curve-flattening tolerance (device px) for strip-routed paths. The raster core's 0.25 default (the GPU experiment's) leaves curve edges up to 0.25 px off the true curve - against Skia's much finer flattening that showed up as 50/255 coverage diffs on glyph-sized cubics. 0.02 px keeps curve-edge parity within a few counts for ~3.5x the segment count on curves (Wang's n grows with 1/sqrt(tolerance)); lines are unaffected.

Implementation

const double stripFlattenTolerance = 0.02;