What: the Composition panel's Resolution (Auto, Full, Half, Third, Quarter, Custom) is now a
property of the composition (`Comp::resolution`, moved with its `Resolution` type from the UI
into the project crate) instead of one global viewer setting. Switching to another comp shows
that comp's resolution, switching back shows the first one's again, and saving and reopening the
project keeps them. `view.res.full|half|third|quarter|custom` and the new engine command
`view.res.auto` set it (headless too, with an optional `comp`); `ui.set {viewer: {res}}` sets
the active comp's and `ui.inspect` still reports `ui.viewer.res`; `comp.info` reports
`resolution` and `resolutionFactor`; View ▸ Resolution's check marks come from the engine.
Why: After Effects saves each composition's Resolution with the project (CompItem.resolutionFactor
is a per-comp attribute). As there, changing it marks the project modified but adds no undo step:
undo, redo and History jumps carry the current values over to the restored state. It is not part
of the comp's pixels (`Comp::same_pixels` ignores it and `Comp::pixel_form` normalises it), so
changing it keeps the comp's RAM and disk cache keys. Auto is not written (serde default and
skip_serializing_if), so projects saved before open with Auto and older versions read new files.
The magnification is not saved per comp: Adobe's documentation doesn't say it is.
Tests: project `comp_resolution_is_saved_and_old_projects_load_with_auto`,
`resolution_factors_and_scales`; engine
`each_comp_keeps_its_resolution_outside_the_undo_history_and_in_the_file` (switching comps,
no undo step, undo/redo keep it, save/open round trip, menu check marks, Custom dialog);
ui-egui `each_comp_keeps_its_viewer_resolution` (the viewer popup on comp A, comp B through
`ui.set`, back to A, unchanged frame cache identity, save/open). They don't build before the
change (no `Comp::resolution`, no `view.res.auto` engine command).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The Tools bar's Snapping options menu (#265) offered per-feature
toggles (Edges, Corners, Centers, Anchor Points, Mask and Shape Path
Points) that After Effects' Snapping menu doesn't have. It now has the
two After Effects has:
- Snap Edges Extended (as before).
- Snap to Features in Collapsed Compositions and Text Layers: the
visible layers inside a precomp layer with Collapse Transformations
on are snap targets too, mapped into the outer comp (points always,
edge lines while the precomp layer is unrotated); a snap highlights
the precomp layer. Nested collapsed precomps are followed eight deep.
Every layer feature snaps again (corners, edge midpoints, centre,
anchor point, mask and shape path points); the snapping engine itself
is unchanged. `view.snappingOptions` takes `edgesExtended` and
`collapsedFeatures` (and `toggle` of either); the old keys are refused.
Test: collapsed_precomp_features_snap (fails before: no such option),
snapping_options_command_sets_and_toggles (the per-feature keys are
refused), snapping_options_pick_the_targets (AE behaviour kept: edges
extended or not, hidden layers, guides only), and the Snapping menu UI
test (only the two options are listed).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Dragging a layer already snapped its feature nearest the pointer to
other layers' edges, corners, centres, anchor points and path points
and to the comp's edges and centre, and Cmd/Ctrl held during the drag
already turned snapping on or off against the checkbox. What was
missing were After Effects' Snapping options beside the Tools bar's
checkbox. The new menu turns Snap Edges Extended off (a layer's edges
then snap only along the layer, not across the comp) and each feature
family (edges, corners, centres, anchor points, mask and shape path
points) on or off, for the dragged layer's snap features and for the
targets alike. Agents set them with view.snappingOptions.
Layers whose eye is off (or that a solo hides) are no longer snap
targets, mask and shape path points of the dragged layer snap too, and
while snapping is on the feature that snaps is boxed during the drag.
Test: layer_drag_snaps_to_other_layers_edges_ctrl_toggles_and_options_apply
(UI), snapping_options_pick_the_targets and
snapping_options_command_sets_and_toggles (engine).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The Tools bar had Fill and Stroke swatches and a Stroke Width, kept in
the interface only, so agents couldn't set them and new shapes could
only be a solid fill with a solid stroke. As in After Effects:
- With a shape layer selected and a shape tool or the Pen active, Tool
Creates Shape / Tool Creates Mask choose whether drawing adds shapes
to the layer or masks on it (Fill and Stroke hide while drawing
masks).
- Clicking the word "Fill" or "Stroke" opens Fill Options / Stroke
Options: None, Solid Color, Linear Gradient or Radial Gradient, the
blend mode and the opacity. The swatches show the kind; Alt-click
steps through the kinds.
- New shapes and Pen paths are painted with them: a Gradient Fill or
Gradient Stroke across the shape for the gradient kinds.
The options are engine state (EditorState.shape_tool) set with the new
shape.toolOptions command; shape.newShape and shape.newPath use them
unless given paint parameters (which now include fillType, fillBlend,
fillOpacity and their stroke twins; layer.newShape takes them too). A
Pen path without paint parameters now takes the Tools bar's stroke
(none by default) instead of a fixed 2 px white one. layer.addMask also
draws rounded rectangle, polygon and star masks, so every shape tool
makes a mask on a selected footage or solid layer (rounded rectangles,
polygons and stars made a new shape layer).
Test: shape_tool_options_paint_new_shapes,
masks_of_every_shape_tool_kind,
tool_creates_mask_draws_a_mask_on_the_selected_shape_layer,
fill_options_paint_the_next_shape.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
With a shape layer selected, the Rectangle, Rounded Rectangle, Ellipse,
Polygon and Star tools made a new shape layer for every shape. After
Effects draws into the selected shape layer instead: the shape becomes a
new group on top of its Contents ("Rectangle 2", ...), placed by the
group's Transform. The new shape.newShape command does that (in the
layer's space, so a moved or scaled layer still gets the shape where it
was drawn), and makes a new shape layer only when no unlocked shape
layer is selected. The viewer's shape tools use it; masks on other
selected layers are unchanged. layer.newShape and the Pen's
shape.newPath share its layer and Contents helpers.
Test: shape_tools_draw_into_the_selected_shape_layer,
shape_tool_draws_into_the_selected_shape_layer.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
A line that is not a JSON object with a string `method` (an HTTP request
line, other non-JSON text, a JSON array, invalid UTF-8, a line over 4 MiB)
now gets one error reply and the connection is closed, so a browser's
cross-origin fetch can't smuggle a command in its body. Connections are
capped at 16. Same transport as LightCraft (storytold/lightcraft#129) and
FilmCraft (storytold/filmcraft#123).
An angle's revolutions were painted text: only the degrees could be
dragged or typed, so full turns needed the dial or typing past 360.
fx_widgets::angle_field draws `0x+45.0°` as two hot numbers: the
revolutions (widgets::hot_int_at, ten pixels a turn, fractions adding up
between frames so slow drags still step; a typed value is truncated) and
the degrees, each keeping the other. Effect Controls, the Timeline and
the Properties panel use it, so they read and edit angles alike (the
Timeline showed `-1x-40.0°` and Properties had its own split).
Automation ids: timeline.prop.<uid>.revolutions,
effectControls.prop.<uid>.revolutions, properties.prop.<uid>.revolutions.
Regression test: angle_revolutions_scrub_and_take_typing drags and types
the revolutions in all three panels.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- commands::markers::nested_markers: a precomp layer's comp markers at their times in the
containing comp (start and stretch in closed form; with time remapping or a stretch over
protected regions, the first frame whose source time reaches them), within In–Out.
- markers.nested {layer}: the same list for agents.
- Timeline: drawn on the precomp bar as outlined read-only markers (positions cached per
revision), hover names them, double-click opens the nested comp at the marker; automation id
timeline.layer.<id>.nestedMarker.<i>.
- Tests: engine (start, stretch, trim, time remap, non-precomp error), UI (draw, label, open).
Docs: parity, control protocol.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- PanelKind::Viewer(n): more Composition viewers (panels::viewers). One is active (the full
interactive viewer, showing the active comp); the others show their own comp's frame at that
comp's current time (CPU or GPU frames, their own textures) and become active on a click or
their tab, their comp becoming the active comp.
- view.newViewer (View menu, the Composition panel menu, Alt+Shift+N): a new viewer of the
active comp next to the one in use, which is locked. Opening a comp while the active viewer
is locked shows it in an unlocked viewer, or a new one when every viewer is locked. Closing
the active viewer hands over to another with its comp. Tabs are named after their comp, with
their own lock and swatch; Preview full screen maximizes the active viewer.
- UI state: viewers (comp per viewer) and active_viewer (serde).
- Tests: ui_viewers (lock on New Viewer, routing, click to activate, all locked → new viewer,
close hand-over, tab titles; an ignored snapshot). The bounded-drag frames test asserts what
holds when freed addresses are reused. Docs: parity, control protocol.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- The Timeline shows one tab per open comp (dock DocTab). Clicking a tab shows that comp; ×
or middle-click closes that comp's Timeline (comp.close), not the panel. Opening a comp brings
its viewer and Timeline tab to the front.
- Project panel: a double-click on an item's name opens it (a comp gets its own tab) instead of
renaming; Enter and the context menu rename.
- Tab drags: over a tab strip an insertion mark shows where the tab lands, and it lands there
(Layout::insert_tab), which also reorders a group's own tabs; side zones are unchanged.
- Tests: ui_tabs (double-click, tab switch / close, drag reorder and cross-group insert; an
ignored mid-drag snapshot); the Timeline close test follows the new behaviour.
- Docs: parity, control protocol.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- Quit and the window's close button, File ▸ New Project, Open Project, Open Recent, Close
Project, the demo project and a Home template show Save / Don't Save / Cancel when the
project has unsaved changes (Save asks for a path when untitled; cancelling that keeps the
project open). File ▸ Revert asks to discard. Before, all of them dropped unsaved work
without asking.
- The window title shows the project's path and `*` while it is modified.
- The modified mark follows undo: the session keeps the snapshot it last opened or saved
(`Session::saved_project`), so undoing, jumping in the History panel or rolling back a batch
to the saved state clears it.
- An edit that changes nothing (a value set to what it already is) records no undo step and
doesn't mark the project modified (`Project::same_content`, comparing untouched comps by
pointer).
- Agents' `engine.execute` / MCP calls are never asked; `ui.menu.invoke` shows the prompt like a
click (automation ids `dialog.unsaved.save` / `dontSave` / `revert` / `cancel`), and the
control channel's `app.quit {force: true}` skips it.
- Docs: architecture, agents, control protocol, parity.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- footage.check: background footage check after File > Open (Progress panel), not an undo step
- timeline: track-matte / parent menus built only while open (was O(n^2) per frame);
expression-row lookup per layer; panels hold Arc<Comp> snapshots instead of deep clones
- Project panel: virtualised vertical scrolling, selection reveal, thumbnails rendered off
the UI thread
- effectcraft-cli bench --ops (engine::perf + ui-egui::bench)
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Composition viewer interaction parity with After Effects:
- Snapping (View > Snapping, the Tools bar checkbox, Cmd/Ctrl inverts while
dragging): layer edges, centres and anchor points, mask and shape-path
vertices, comp edges/centre, guides (Snap to Guides) and grid (Snap to
Grid), with highlighted target box / line / cross feedback. Pure maths in
engine::viewer (nearest target within tolerance, priority ties).
- Rulers (Cmd+R) with live pointer markers and a draggable zero point;
guides dragged out of the rulers, moved in the viewer, dragged off to
remove (view.moveGuide / view.removeGuide), lock respected; proportional
grid.
- Show Channel (RGB/Red/Green/Blue/Alpha/RGB Straight, Colorize), exposure
(+/- stops in linear light, reset), Take Snapshot (Shift+F5) with a stored
render and Show Snapshot (F5 held / button held), Fast Previews (Off,
Adaptive Resolution, Draft, Fast Draft, Wireframe), Resolution > Custom.
- Region of interest: drawn in the viewer; RenderOpts.roi renders only that
rectangle (crop of the full render, tested), Crop Comp to ROI uses it.
- Bottom bar in AE 2026 order ("136.1 %", "(Full)").
- Shape Pen (SHP-1): Pen on a shape layer / nothing selected draws Shape n
groups (Path 1, Stroke 1, Fill 1) via shape.newPath; the G slot cycles
Add / Delete / Convert Vertex and Mask Feather; mask.* vertex commands
work on shape paths; mask.insertVertex / mask.convertVertex; marquee
vertex selection, Alt-drag/click converts, double-click free transform
box (path.freeTransform on masks and shape paths).
- Motion paths (ANM-3): keyframe dots and spatial tangent handles, dragging
keys (keys.set) and tangents (keys.setSpatialTangents), parented layers.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- Audio effects (Backwards, Bass & Treble, Delay, Flange & Chorus,
High-Low Pass, Modulator, Parametric EQ, Reverb, Stereo Mixer, Tone)
applied per layer in the comp mixdown, so export and preview share them.
RBJ-cookbook biquads, Schroeder/Moorer reverb, modulated delay lines;
stateless per block via pre-roll. Tone makes any layer audible.
- Real-time audio preview: ui-egui AudioFeed/AudioPlayback (feeder thread
mixing ahead) behind an AudioDevice hook; the desktop app implements it
with cpal (L6). Audio clock drives playback (consumed frames minus device
latency, looped through the work area). Preview panel Include Audio /
playback.muteAudio.
- Audio panel VU meters with peak hold and clip indicators; selected
layer's Audio Levels.
- Timeline Audio > Waveform for footage with audio (L reveals Audio
Levels, LL the Waveform), drawn from a cached per-item peak summary.
- ui.playback reports audio state and meter levels.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
