Every transition and Effect Option was built in PowerPoint (COM), exported as
video and compared frame by frame with DeckCraft at the same progress
(mean abs diff over 150 variants 35.7 -> 15.0, 0-255).
- anim: transition_frame(kind, option, t, aspect) with measured curves
(smoothstep fades, ease-in-out moves, Cover/Uncover/Pan curves), directions
and option meanings, soft edges as per-corner opacity, 3-D effects as
perspective-projected cards, Dynamic Content moving slide contents over
cross-fading backgrounds (Source::OldBack/NewBack/OldContent/NewContent);
layer_mesh subdivides perspective quads so textures stay straight.
- New options: Page Curl Single, Glitter Hexagons, Shred In/Out, Zoom and
Rotate; PowerPoint-style Effect Options labels.
- render: composite_transition (CPU twin of the show), render_slide_part,
render_transition; deckcraft-cli render-transition FILE --slide N --t T.
- show: per-vertex opacity meshes, slide parts rendered once per transition.
- pptx: PowerPoint's elements and defaults (p:strips diagonal wipes, p14:warp
and p:newsflash for Zoom, p:zoom for Shape In/Out, glitter pattern, shred
rectangle/dir, prstTrans invX per preset, pageCurlSingle, defaults for
randomBar/doors/window/pan/zoom); PowerPoint reopens DeckCraft's files with
the same effects.
- Tests: measured curves, probes of which slide shows where at t, option
coverage, per-frame triangle budget, PowerPoint XML and defaults round trip.
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Emoji: colour glyphs, and emoji take the colour emoji font
Emoji were drawn as black outlines from a symbol font, with ZWJ sequences
(families, flags) falling apart into their parts. Now:
- an emoji cluster (emoji presentation, U+FE0F, ZWJ between pictographs,
skin tones, regional indicators, keycaps) takes an installed colour font
(COLR, CBDT, sbix or SVG tables) before the document's fonts, so its
sequences ligate as in PowerPoint; U+FE0E keeps a plain face;
- COLR v0 and v1 glyphs are painted in their CPAL colours (solid fills,
linear, radial and sweep gradients, transforms, composite modes), with
palette index 0xFFFF in the text colour.
A tiny COLRv0 test font (two squares, CC0, regenerated by
make_colr_font.py) backs the render test.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
* Render: lock skrifa for colour glyphs
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
