Files dropped on the window or picked in the Import dialog were probed
one after the other on the UI thread: the app froze while a video was
read, nothing said what was being imported or how many files were
left, and only the last new item was selected. People ended up
importing the same file again and again.
file.import takes `background`: the files are probed in a background
job (Window > Progress, jobs.list / jobs.cancel) that names the file
being read and how many there are ("b.png (2 of 3)"); then they are
added in one undo step, all selected (the Project panel scrolls to
them, a file already in the project arrives again as in After
Effects) and a toast reports the count ("Imported 3 items", with the
first error). Drops and the Import dialog use it, and an Importing
card at the bottom left shows the job with its progress bar and
Cancel. Agents and scripts still import at once by default. The
toast registers an automation id.
Test: background_imports_report_progress_and_select_what_arrived
(engine), dropped_files_show_import_progress_then_the_items_they_made
(ui_drag_drop).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Selecting a mask in the Timeline (its row or Mask Path), or a shape's
Path, selects all its points, so dragging one in the viewer moves the
whole mask, as in After Effects. Delete still removes the mask, and
selecting another property deselects the points.
- Mask Feather has the chain link (Constrain Proportions, on by
default, Alt edits one value) and no longer takes negative values;
Scale's link shows as a toggle too.
- Dragging in the Project panel's empty area draws a selection box
(Shift / Cmd adds); a click there deselects.
Tests: selecting_a_mask_selects_its_points,
mask_feather_values_are_linked_and_not_negative,
dragging_in_the_empty_area_box_selects_items.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018gnTnH3Jmk5zr4tMq1Mc9f
- With a shape layer selected, the toolbar shows its Fill, Stroke and
Stroke Width (with any tool) and editing them changes the layer's
fills and strokes, as in After Effects (new shape.fillStroke, one
undo step per picker or drag). Shapes drawn without a stroke get one
when a stroke colour or width is set, so changing the stroke now works.
- Alt+Shift+P (A, S, R, T) reveals the property it keyed on each layer.
- A click in the time graph below the last layer deselects the layers
(it only deselected keyframes), so a shape tool draws a new shape
layer instead of a mask on the selected image.
Tests: toolbar_fill_and_stroke_paint_selected_shape_layers,
toolbar_stroke_edits_the_selected_shape_layer,
add_position_key_reveals_position,
clicking_below_the_layers_deselects_them.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018gnTnH3Jmk5zr4tMq1Mc9f
Their params docs wrote the renderer as `renderer? classic3D|advanced3D`.
Without a `:`, the doc parser reads `|` as "or another key", so
`advanced3D` became an accepted key in the schemas and the unknown-key
check: `comp.new {"advanced3D": true}` succeeded and made a Classic 3D
comp.
The docs now use the value-list form the other commands use,
`renderer?: classic3D|advanced3D`. The key is removed rather than
implemented: it would only duplicate `renderer` (and could contradict
it). A scan of every command's schema found no other key that came from
a value list.
Test: renderer_values_are_not_parameter_keys (not in the schema, rejected
as unknown, `renderer` still works on both commands).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The Composition viewer ignored drags from other panels. Now, as in After
Effects:
- A Project item dropped on the viewer becomes a layer centred where it
lands (above the selected layer, like any new layer); while dragging, the
viewer is outlined and the layer's frame follows the pointer.
- Media Browser files do the same; files dropped from the OS file manager
do too when the platform reports where the pointer is during the drag
(otherwise they import as before).
- An effect from Effects & Presets goes on the layer under the pointer,
which is outlined while dragging.
layer.addItem and layer.newModel take `position` ([x, y] comp px).
file.import takes `addToComp` with `time`, `index` and `position`;
mediaBrowser.import shares it (file::add_to_comp): layered files go in as
their comps, the comp they were dropped in stays open, and items that
can't be layers are reported in `errors`. viewer::layer_at is the hit
test pick() and the drop share.
Tests: ui_drag_drop.rs (project item and effect dropped on the viewer)
and imported_files_go_into_the_comp_where_they_were_dropped (engine).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A Project item (or Media Browser file) dropped in the Timeline always
went above the selected layer, starting where new layers start.
Now, as in After Effects, a line shows where it goes in the stack (above
the first layer row whose middle is below the pointer, else below the
last), and over the time graph a marker with a timecode tag shows its In
point, which follows the pointer (frame-snapped) or, with Shift, the
current time. The layer reorder drag shares the insertion logic.
layer.addItem and layer.newModel take `index` (1-based stack position);
mediaBrowser.import passes `time` and `index` on, one layer under the
other.
Tests: project_items_land_where_they_are_dropped_in_the_timeline
(ui_drag_drop.rs, real pointer drags: outline, time graph, Shift, below
the last layer) and add_item_at_a_stack_index_and_time (engine).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Toggling a layer's Audio, Lock or Shy switch (or Hide Shy Layers) threw
away every cached frame: the RAM preview identity hashes each comp's
address, which any edit replaces, and the layer and disk cache keys
hashed every switch. None of these change pixels.
- Switches::pixels, Layer::same_pixels and Comp::same_pixels (exhaustive
field lists, so a new field must be considered) and Comp::pixel_form.
- Layer cache keys hash Switches::pixels; the disk cache's comp content
key hashes Comp::pixel_form.
- Frames::identity: when a new revision's comps draw the same pixels as
those of the comp's last new identity, that identity (and the project
holding its comps' addresses) is kept, so the frames stay, also when the
switch is toggled back.
With audio on, playback skipped frames that weren't rendered yet. Now the
sound waits: until the frames ahead (to the end of the preview, or what
fits in the RAM preview) are cached, every frame shows as it renders,
silently, like a preview without audio; then the sound starts in sync.
Reaching an uncached frame stops the sound instead of skipping frames.
Tests: audio_lock_and_shy_switches_keep_the_frames (frames.rs, nested
comps and toggling back), audio_lock_and_shy_keep_cached_layers (engine),
the disk key in tests_disk_cache, and
preview_with_audio_shows_every_frame_and_sounds_once_cached.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
comp.new / comp.settings passed `frameRate` straight to
FrameRate::from_f64, so 0 (or anything below 0.0005) became a 0/1 rate
and the next frame-duration computation divided by zero, killing the
process (and an MCP session with its unsaved project); a negative rate
was accepted as-is. Scripts hit it via addComp(..., 0) or
comp.frameRate = 0. Return a parameter error like renderQueue.add's
frameRate check does.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Angle dial with revolutions (0x+45.0°), point crosshair + on-viewer effect
point controls via a small viewer hook, colour eyedropper sampling the
composited frame, Curves graph editor and Levels histogram/triangles bound
to their params, layer params with a Source/Masks/Effects & Masks companion,
mask (Path) popups, keyframe navigator, drag-to-reorder effect headers.
Engine: effect.copy / effect.paste / effect.reset; effect.remove takes the
selection; Edit > Copy/Paste/Duplicate/Clear act on selected effects; all
undoable.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Also: render uses web_time::Instant in layer styles; renderQueue.add documents
its render-settings/output-module keys so checked execution accepts them (+test).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
engine comp.settings/comp.new: anchor (shifts unparented layers and their
position keys on resize), startTime/startTimecode, renderer.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- render: LayerCache (content-keyed processed-layer cache: source -> masks ->
effects, keyed by a hash of the layer's non-transform props evaluated at the
frame time, solid item, switches, scale; time folded in for clock-driven
effects / wiggle paths). Static and transform-only layers render once;
edits only re-render the edited layer. Session + UI frame jobs share it.
- effects: TIME_DEPENDENT list + test that every clock-reading effect is listed.
- raster: affine composite fast path (per-row span clipping, unchecked interior
bilinear, integer-translation copies, inlined Normal blend), checked against
composite_warp_reference; box/Gaussian blur without transposes, two
ping-pong buffers; accumulate_warp so motion blur sums into one buffer
instead of one full-frame image per sub-sample.
- ui: viewer frame is urgent and jumps the prefetch queue; stale-revision jobs
are dropped; paused prefetch waits for the viewer frame; "Frame Render Time"
reports viewer frames only; parallel f32 -> Color32 conversion.
- cli: `frame --bench N` (per-layer/per-effect timings, wall + CPU time) and
`frame --bench-play N` (consecutive frames with/without the layer cache).
- tests: cache transparency (scrub, edits of values/keys/effects/masks/
solids/text/timing), hit/miss accounting, time-dependent effects, demo
cached == uncached, fast warp/blur/accumulate == reference.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Properties panel (panels/properties.rs): Layer Transform with keyframe navigator
or stopwatch, AE value formatting (integers, %, Nx+N° rotation), linked Scale,
Reset; Text (font/style/size/leading/tracking/stroke, fill/stroke toggles);
Paragraph (7 alignments); Text Animation > Add Animator; scrolling.
- Tabs name what they show: Composition <comp>, <comp> timeline, Effect
Controls <layer>, Properties: <layer>.
- Default workspace: full-height right column, Preview over Properties.
- engine: time.go nextKey/prevKey accept prop uid; layer.setText supports all
seven justify modes, applyFill/applyStroke and Auto leading (fixes the
Paragraph 'justify' button mapping to Justify All).
- examples/snapshot: render the real UI headless (egui_kittest + wgpu) with
scripted control-channel steps.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude
Nigel Ihza Firdausy
DWAA1660
bflatastic
storybored379
Brandon Thomas