KenM76andClaude Opus 5.5 6a76d28016 fix(render): a shading in a knockout group replaces only what is under its shape ...

Review of #4898 (CodeRabbit): a shading clearing in another blend-mode
pass cleared its whole drawing path, so a small mesh triangle erased the
earlier elements of its pass around it. The same happened in the
shading's own pass, and in any knockout group, because a knockout paint
is copied over the path and a mesh texture is transparent outside its
triangles.

A shading in a knockout group now goes through knockout_shading: the
shading at full opacity, composited with Compose::DestOut, clears its
own shape (mesh triangles, /BBox), then in its own pass it is painted
with SrcOver. A shading that paints nothing still clears nothing. The
clear uses the shading without the fill opacity it carries, so a
half-transparent shading still replaces all of what is under it.

Test: it::knockout_backdrop::a_small_mesh_replaces_only_what_is_under_its_triangle
(own pass, another pass, isolated group). Revert-proven per half; keeping
the opacity in the clear fails
raster::tests::knockout_groups_replace_what_their_elements_cover.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SqmHYx8FiWM5PcsoiErgp9

2026-10-27 13:22:02 -04:00

..

examples

chore: resolve SonarCloud maintainability issues (#4356)

2026-10-23 23:28:18 -04:00

src

Merge origin/main into fix/comment-threads-by-irt

2026-10-24 20:42:11 +02:00

tests/it

fix(render): a shading in a knockout group replaces only what is under its shape

2026-10-27 13:22:02 -04:00

Cargo.toml

Reading colours: replace document colours for reading comfort (#897) (#1270)

2026-10-12 02:49:31 -04:00