Brandon ThomasandClaude Opus 5.5 772abb2154 Render: pattern fills blend neighbouring cells between whole-pixel sizes ...

Pattern tiles were sampled nearest-cell, exact when a pattern cell
(0.75 pt) is a whole number of output pixels (a 960-wide export of a
720 pt slide) but harsh otherwise: at 960 px for a 960 pt slide (0.75 px
per cell) PowerPoint shows greys where a pixel straddles two cells, and
DeckCraft showed only the two colours, in different places. The tile is
now sampled bilinearly. Fitted against PowerPoint's export of all 54
presets at 0.75 px per cell: mean error 0.067 (bilinear) against 0.082
(nearest) and 0.095 (area average); still not exact (narVert reads
255/128/0 in PowerPoint, 213/128/42 here). Unchanged at whole-pixel sizes.

Wild synthetic set: patterned backgrounds 21.15 -> 11.31 and
18.00 -> 9.75, pattern galleries 22.50 -> 19.44 and 13.96 -> 11.64.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

2026-10-13 08:16:41 -04:00

..

src

Render: pattern fills blend neighbouring cells between whole-pixel sizes

2026-10-13 08:16:41 -04:00

tests/fixtures

Emoji: drawn in colour, with families, skin tones and flags joined (#278)

2026-10-12 17:48:51 -04:00

Cargo.toml

Transitions like PowerPoint: measured frame by frame and retuned (#366)

2026-10-13 05:31:13 -04:00