Alt+] (Trim Layer Out Point to Current Time) used to set the Out edge exactly at the playhead; the layer interval is half-open, so the playhead's frame was already gone - nothing showed in the current frame. The edge now lands one frame after the playhead, as in After Effects, so its frame is the layer's last visible one. A layer still keeps at least one frame; Alt+[ (In point) is unchanged.
Review of the first commit found three places that still asserted the old cleanup: the UI integration
test (which would have failed CI), docs/agents.md, and the comments on TextEdit::created, layer.newText
and the engine test itself.
Co-Authored-By: DeepSeek V4.1 Flash <noreply@deepseek.com>
Carry property, Font and Media Replacement overrides into the collapsed nested EvalCtx so nested layers render beyond the precomp frame instead of falling back to a clipped, flattened image. Key the layer cache on instance overrides to keep distinct collapsed instances isolated.
A shape's painted bounds can be tiny enough (a 1e-305 px rectangle) that
the fit scale overflows to infinity. Non-finite bounds are skipped and a
non-finite scale returns an error before anything is written, instead of
storing infinity in the document.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
layer.transform's fit / fitWidth / fitHeight ops took the layer's size
from render::source_size, which returns (0, 0) for layers without a
source item — shapes and text — so the ops matched nothing and silently
did nothing, for the shortcut, the menu item and the command alike.
When the source size is empty and a fit op runs, the size falls back to
the layer's painted content bounds at the current time, and the anchor
goes to the bounds' centre: content bounds live in layer space, where a
shape is centred on the origin and text sits above its baseline, so
(w/2, h/2) would fill the frame but land off-centre. Reset and the
other ops keep the source size, so their defaults are unchanged.
The regression test asserts what the viewer shows — the painted bounds
mapped to comp space span [0, 0, 640, 360] after fit, and fitWidth
spans the width centred vertically — for a rect shape and a text layer.
Co-Authored-By: GLM-5.3-Flash <noreply@z.ai>
Every undoable edit keeps the previous project for undo, so the comp it touches
is shared and Arc::make_mut deep-copies it: every layer and every keyframe. An
edit therefore costs time in proportion to the comp's size, and a script that
sets many keyframes in a big comp goes quadratic (a 1,600-layer build with
~100k sampled keys took ~45 minutes).
Comp::layers is now a Layers collection backed by Vec<Arc<Layer>>: copying the
stack copies pointers, and only the layer an edit changes is copied. The API
mirrors Vec<Layer>; serialized form is unchanged (a list of layers).
Comp::layer_mut and the iter_mut().filter/find call sites use find_mut /
iter_mut_where so they copy only the layers they actually change.
- prop.addKey in a 400-layer comp: 1.36 ms -> 0.16 ms per key (flat in comp size)
- the 1,600-layer script build: ~45 min -> 47 s, frames pixel-identical
- regression tests: an edit leaves the other layers shared with undo; layers
round-trip as a plain list
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VkpGcKfWyCudfSsQNiWAaG
bflatastic
elZanco
tylerjenningsw
zitann2020andDeepSeek V4.1 Flash
Camille Moine
Claude
SusieeTheFemboyandClaude Opus 5.5
Eduardo EspinosaandClaude Opus 5.5
Dylan M. Taylor
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