tree 7d3a2c21aec89ce559d6b85323eec7ef0b3468a6
parent f0a4eaa0e8e2deb3550237c50beb6e2d8c62a39d
author Raph Levien <raph@google.com> 1692824848 -0700
committer Raph Levien <raph@google.com> 1693443085 -0700

Improve numerical robustness of path filling

Handle various edge cases according to epsilon theory. Also add test SVG file which is useful for hitting those cases.

While this handles all known artifacts, there are some rough edges. For one, area antialiasing still exhibits some artifacts. Another issue is that the bounding box culling is now slightly more lenient on the Rust side than the WGSL one (edges aligned to the left edge of the tile are now included). The WGSL path hasn't been exercised as carefully as the Rust one.