The desktop app opened the demo project whenever it wasn't given a
project file, so File ▸ New Composition on the Home screen added "Comp
4" to the three demo comps. As in After Effects, a launch now starts
with an empty Untitled Project. --demo opens the demo (Help ▸ Open
Demo Project and the Home screen tile still do); --empty is kept.
The arguments are parsed by a function now, with a test
(no_arguments_start_an_empty_project).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_018gnTnH3Jmk5zr4tMq1Mc9f
add_effect ran effect.apply and then one prop.set per `values` entry as
separate commands: each became its own undo step, and a bad value (an
unknown parameter id) returned an error but left the effect, and any
values set before it, on the layer, so a corrected retry landed at
effects/#2.
It now runs them as one engine.batch, named like effect.apply's own undo
step ("Apply Gaussian Blur"): one undo removes the effect with its values,
and a failing step rolls the whole call back. The reply is unchanged.
Test: add_effect_is_one_undo_step_and_all_or_nothing.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
prop.setExpression keeps an expression with a syntax error but disables
it, and says why only in its own reply. MCP set_property answers with
prop.get instead, and prop.get reported `evaluated` / `expressionError`
only for enabled expressions, so set_property, get_property and prop.get
all showed the broken expression as if it were installed.
prop.get now reports a disabled expression too: `evaluated` is the
static value that renders, and `expressionError` is its syntax error.
Test: expression_syntax_errors_reach_the_reply (set_property and
get_property carry the SyntaxError; runtime errors and valid expressions
report as before).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Args::parse kept any unrecognised `--option` as a valueless flag nobody
read, so `exec comp.new --bogus` ran with defaults and exit 0, and a
misspelt valued option left its value behind as a positional:
`--saveas z.ecproj` opened z.ecproj as the project and failed with an
unrelated "cannot read" error.
Options are now checked against the declared lists (VALUED and the new
FLAGS) before anything runs; unknown ones are a usage error naming them
(exit 2), and `--flag=value` on a flag says it takes no value.
render-frame's `--transparent` (the MCP render_frame option) was one of
the silently ignored options; it now keeps the frame's alpha.
Tests: unknown_options_are_refused, every_option_read_is_declared (every
option the code reads is declared, so none is refused),
unknown_options_are_usage_errors (exit 2, nothing runs or renders, and
--transparent renders alpha).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- #174: the file names are fixed (effectcraft_web.js, effectcraft_web_bg.wasm, worker.js,
sw.js…), not content-hashed, so the guide's year-long immutable caching kept returning
visitors on the old release after an in-place upgrade. The guide, nginx example, _headers
and .htaccess now revalidate (no-cache) the .wasm, .js and index.html, and suggest a
versioned path for longer caching. The file table lists the real files.
- #180: the .wasm is about 58 MB (17 MB gzip, 10 MB Brotli) for v0.3.1, not 13 MB / 5 MB;
docs/web.md's 38 MB figure is updated too.
- #165: preferences live in the origin's browser storage (OPFS, IndexedDB or memory), not
localStorage.
- #164: relative URLs come from the page itself (and package.sh's check), not a Trunk.toml
that doesn't exist.
The iframe example's title no longer says image editor.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The Tools table gains history and script_ui, get_layer's depth,
add_keyframe's comp and the bridge screenshot's max_side and path.
agents_doc_tools_table_is_current (effectcraft-automation) fails when a
tool or an argument of its input schema is missing from the table, as
effects_doc_is_current guards docs/effects.md.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
How a release is cut (version bump, the gate, pushing main to release,
the draft, publishing), test runs, what gets built where, the Linux
glibc baseline behind the ubuntu-22.04 runners, and the optional signing
secrets. release.yml's two pointers now resolve.
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).
The ui_angles evidence (#141) moves next to G2's other regression
evidence; the Stability row notes the parent-chain hang, the label colour
panic and the contained GPU failures.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
gaps.md records the seven reports of 6 October (#85, #88, #89, #93, #103,
#106, #117), what they found in features marked done, their fixes of 7
October and the regression tests; parity.md's Interface, Animation and
Preview rows, the ROADMAP's reliability note and the README's panels
paragraph (drag and drop between panels) follow.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
The desktop app shares egui-wgpu's device, which had no uncaptured-error
handler, so wgpu's default one panicked on an out-of-memory error on
every frame thread; the panicking frame stayed "in progress" forever and
never rendered again. The GPU frame budget was a fixed 1 GiB.
- GpuContext::new logs uncaptured errors once its pipelines are built
(errors while building them still panic there, which the app catches
to fall back to CPU compositing).
- Gpu::within_memory runs GPU work in an out-of-memory error scope; on an
error the result is discarded and uploaded layers and pooled textures
are freed.
- Frame workers render each frame within it; out of memory, the frame
renders on the CPU and the RAM preview keeps half as many GPU frames
(down to 64 MiB), since wgpu can't tell how much video memory there is.
- A frame whose render panics renders again on the CPU, or is released,
so the viewer asks for it again.
Tests: a_frame_whose_render_panics_is_released (failed before),
running_out_of_video_memory_halves_the_gpu_frame_budget and
within_memory_returns_the_work_when_there_is_room.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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 <[email protected]>
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]>
gaps.md records the Windows report and its fix under real-user experience and G2; parity.md's
Text row, the ROADMAP's reliability note and the README's Text bullet say text can use any
installed font; architecture.md says when the system font scan runs.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
Claude-Session: https://claude.ai/code/session_019EjTYdt76hTG4Kh2CJFnCr
A Windows user reported that the Properties panel's font menu offered only the bundled Inter,
JetBrains Mono and Noto Serif. The system font folders were scanned only when a project asked for
a family the bundled fonts lack, so until then every font menu (Properties, Character, Essential
Graphics) and `file.findMissing {what: fonts}` saw the bundled families alone, on every
platform. Listing the families now scans the system fonts first, and the desktop app starts that
scan on a background thread at launch so the menus are complete when first opened.
The style menus in the Properties and Character panels list the chosen family's own styles
instead of a fixed Regular / Medium / SemiBold / Bold / Italic. Both menus build their lists only
while open.
New query for agents: `text.fonts {query?, rescan?}` (MCP tool `list_fonts`) lists every family
with its styles, origin (bundled / system / user) and own-language name; `rescan` picks up fonts
installed since launch.
Tests: a fresh-process test that the family list includes every family in the platform's font
folders without a prior scan (failed before), and `text.fonts` filtering, rescan and per-family
styles, and the `list_fonts` MCP tool.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
Claude-Session: https://claude.ai/code/session_019EjTYdt76hTG4Kh2CJFnCr
- effectcraft-segment: a FaceModel interface (find a face in a region, follow it; a Topology
maps the model's points to the tracker's landmarks and outline), a TensorFlow Lite reader and
interpreter (float ops, float16 weights folded; matches ai-edge-litert to ~1e-6), and
MediaPipe Face Landmarker (Google, Apache-2.0: BlazeFace + Face Mesh V2, 3.8 MB, pinned
SHA-256). The registry gains a task and authors per model; installed weights get a NOTICE.
- effectcraft-track: FaceTracker::new_with uses the model, falls back to the classical fitter
when it finds no face; chin and jaw come from the outline either way so measurements agree.
- Engine: roto_models becomes models (both tasks); face.models / face.model.* commands,
Settings ▸ Face Tracking, `wait` on select/install/download for scripts; track.mask reports
faceModel.
- Credits: ATTRIBUTION.md lists the optional models and the Apache-2.0 specs the code follows.
- Docs: README, ROADMAP (G7), gaps, parity (TRK-3 score unchanged pending G1), agents,
preferences, architecture, segment README.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- New L1 crate effectcraft-segment: the MaskModel interface (prompts → foreground probability),
a registry of open-licensed models (licence must be MIT/Apache/BSD/…; URL, size, SHA-256),
a PyTorch checkpoint reader (zip + pickle subset), dependency-free SHA-256, and MobileSAM
(TinyViT-5M + SAM prompt encoder / two-way transformer / mask decoder) on rayon and ndarray's
safe GEMM. Loads the official mobile_sam.pt as published; checked against candle
(embedding 0.3% RMS, 99.9% equal mask pixels); ~0.7 s/frame encoder at 32 threads, cached
per frame, ~0.1 s decoder.
- track::roto: segment_with / propagate_with prompt a model with the strokes or the flow-warped
matte (box, core points, mask); its probability is a strong, unblurred prior for the same
graph cut (strokes stay hard constraints); a failing model or one disagreeing with the flow
(IoU < 0.5) is ignored. Prior gets a weight.
- effects::roto: Version 2.0 / 3.0 use the model chosen in Settings (set_model / model_for);
the model id is part of the chain seed.
- engine: roto_models (roto.models, roto.model.select / install / download / remove), weights in
the models folder (host::config_dir()/models, shared by the app, CLI and MCP), background
loading, downloads through the system curl, verified; Settings ▸ Roto Brush page (prefs
roto.model). host::config_dir moved from the desktop app.
- Tests: segment (kernels vs direct sums, checkpoint reader, SHA-256 vectors, registry), track
(fake model: prior shapes the cut, failing / disagreeing models ignored; real weights with
EFFECTCRAFT_MOBILESAM: base IoU 0.989, propagated ≥ 0.980 vs classic 0.973), engine (registry,
verification, selection; real install + load), MCP.
- Docs: README, ROADMAP, parity (MSK-4 done: 90/2/0), preferences, agents, architecture,
crates/segment/README.md.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
parity.md's ≈99% measures breadth only. docs/gaps.md assesses real-world
readiness by dimension (fidelity, .aep interop, stability, platform
reliability, performance, media, AI tools, maturity) with evidence, and
sets prioritised workstreams with done criteria. ROADMAP, README, parity.md,
AGENTS.md and CLAUDE.md point agents at it.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- audio::AudioScrub: an open output that plays a faded snippet (one frame, 30–100 ms) of the
comp's mix at each new frame, replacing what is still queued; holding still repeats nothing.
The mixing is shared with the preview feeder (mix_block); AudioFeed::clear.
- The Timeline ruler: Ctrl/Cmd-drag scrubs audio (EffectcraftApp::scrub_audio opens the output
through the audio device hook on first use). The Audio panel meters follow the snippets; an
idle second closes the output.
- playback.scrubAudio {time?} for agents.
- Tests: ui_audio_scrub (snippet length, fades, same-frame no-op, replace not pile up, silent
comps, Cmd-drag in the ruler, idle close) with a fake device. Docs: parity.
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]>
- FrameKey's identity is the comp's content (frames::comp_content), not the project revision:
an edit keeps the cached frames of comps it doesn't touch and undo finds the frames of the
state it returns to. The identity hashes the addresses of the comps a comp draws (~0.1 ms on
the 1500-layer test project; the full content hash took ~117 ms), by value the footage, solids,
proxies and project settings; with expressions, every item. Frames::content_of keeps a
project snapshot per identity with frames (or in flight), so Arc::make_mut always copies an
edited comp and its address can't be reused meanwhile; past 64 identities the least recently
used go with their frames (long drags).
- drop_stale is gone (frames of other contents are evicted least-recently-shown first).
- disk_cache::comp_content_key covers items' proxies and Use Proxy (it served stale frames).
- Tests: frames (content keys, edits elsewhere and undo, bounded drags, in-place edit safety),
ui_ram_preview (end to end), the disk cache proxy key. Docs: roadmap (M4 done), parity.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- Home covers the whole workspace below the Tools bar (the panels wait behind it) instead of
the Composition panel.
- Left rail: New Project (primary) and Open Project, the Home / Templates / Learn pages with
icons, and the community links and ArtCraft apps at its foot.
- Home page: "Welcome to EffectCraft", quick-start tiles (New Composition, Open Demo Project,
Import Footage, New from Template) and Recent as a table — thumbnail, name and folder,
Opened (relative), Size, Kind — with a filter field, Clear list and an empty state.
- Theme tokens throughout (light themes follow); web_time for "now" (works on the web).
- Tests: formatters (opened / size / kind) and the new automation ids. Docs: parity.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- Collapsed precomps: the renderer records the precomp layers a nested comp is drawn through;
motion-blur sub-samples re-evaluate their transforms (when their motion blur is on) and map
times down through each one, so the precomp layer's own motion blurs its nested layers. The
containing (outermost) comp's shutter applies to collapsed layers. The GPU compositor gets
this through Renderer::placement.
- Shape and text layers whose content changes within the shutter (compared by its cache key)
draw their source at Samples Per Frame times and average them; the cache key covers every
sub-sample's content.
- Tests: tests_motion_blur_depth (collapsed vs flat, the containing shutter, shape content vs
the same move by Position); each fails without the change.
- Docs: roadmap, parity.
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]>
- effect.pickColor {effect, param|prop, x, y (layer px), average?}: the colour of the effect's
input at a point, set on the parameter (one undo step). Keying effects' Effect Controls
eyedroppers use it, since the shown frame is already keyed; Ctrl/Cmd+click averages 5x5.
- effects::aliases / name_matches: Effects & Presets and effect.list (MCP list_effects) find
Key Light by After Effects' name ("Keylight (1.2)").
- End-to-end test: a green-screen plate with an uneven screen, spill and soft edges keyed via
effect.apply "Keylight (1.2)", pick, Clip Black / White and a render; UI eyedropper test.
- Docs: parity, agents (green-screen recipe).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- J / K (Go to Previous / Next Keyframe) and Ctrl+Alt+A (Select All Keyframes) act on what the
Timeline shows, as in After Effects: the keys of its revealed properties, layer and comp
markers and the work area (they used every property of the selected or all layers, revealed
or not). The commands take `visible: [{layer, prop}]`, which the Timeline fills in; agents
calling them without it keep the previous behaviour.
- Graph Editor ▸ Auto-Select Graph Type (an "Auto" button, on by default as in After Effects):
the speed graph when every property shown is spatial (Position, Anchor Point…), else the
value graph; choosing Value or Speed turns it off.
- Docs: parity, agents.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- parity: the status note covers the M3.9–M4.12 passes (feature counts unchanged: they fixed
behaviour inside features already counted done) and the GPU effect count matches EFF-5 (280);
the Layers, Compositions, Interface, Project and Preview rows name what is left and what
landed; landed items in "Highest-value gaps" are struck through with where they landed, the
gaps the passes left are items 16–18, and the closing paragraph no longer says 69 menu entries
are disabled.
- ROADMAP: what is left includes the preview gaps.
- web: a restored session with unsaved changes stays modified and asks before closing.
- preferences: Adaptive Resolution Limit applies while dragging, not to playing previews.
- agents: nested comp settings and New Comp from Selection for several items.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Composition ▸ Preview ▸ Cache Frames When Idle was only a saved checkbox. After a second
without input or edits it now renders the work area's frames (from the current time on, then
from the start) into the RAM preview, a few at a time behind the viewer's own frame, until the
work area is cached or the RAM preview budget is full.
Docs: preferences.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- `FrameKey` carries a hash of the render options (`frames::opts_hash`): switching Fast
Previews (Draft / Fast Draft) or Realtime Shadows no longer shows frames rendered the other
way.
- Eviction drops the least recently shown frame (`Frames::get` touches it), not the oldest
inserted: a looping preview a little over budget no longer evicts the frame it shows next.
- Frames of earlier project revisions are dropped on every change (`Frames::drop_stale`); they
could never be shown again but held memory (and GPU textures) until evicted.
- The green cache bars (Timeline, Preview panel) count the frames of exactly what the viewer
shows — scale, 3D view / region of interest and options (`EffectcraftApp::shown_series`) —
instead of any frame at that scale.
- Playback loops compute the key's fixed part once (`EffectcraftApp::frame_series`).
- Docs: architecture.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- `Project::to_file_json` writes `savedBy` (the EffectCraft version) ahead of the project and
checks that the text reads back before anything is written: JSON has no NaN or infinity, so
such a value made a file that saved but could never be opened. Save now fails with a message
and the file on disk is left as it was.
- Opening a project saved by a newer EffectCraft warns that settings this version doesn't know
are lost on saving; `file.open` reports `savedBy`. A file that isn't a project names itself in
the error.
- Increment and Save keeps the extension (`.ecprojx` stays XML); Save a Copy writes XML for
`.ecprojx` / `.xml` paths, like Save As.
- Docs: architecture (document model), parity.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- Group Shapes (Ctrl+G) / Ungroup Shapes (Ctrl+Shift+G) sit in the Layer menu itself, as in
After Effects (they were under Mask and Shape Path).
- Window ▸ Learn opens the Home screen's Learn tab.
- Composition ▸ Composition Flowchart is Ctrl+Shift+F11 and Window ▸ Flowchart Ctrl+F11 (the
flowchart had the panel's shortcut and the panel none).
- Layer ▸ Transform ▸ Center In View shows Ctrl+Home.
- "Reveal in Finder" reads "Reveal in Explorer" on Windows and "Reveal in File Manager" on
Linux (`menus::platform_label`).
- Docs: parity (View ▸ New Viewer noted as not yet).
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- Pre-compose makes the new composition with the original's pixel aspect, background, motion
blur and frame blending settings and 3D renderer (`Comp::nested_like`); it kept only size,
rate and background.
- File ▸ New Comp from Selection records one undo step (two per item before) and takes each
item's pixel aspect. Several items selected open the New Composition from Selection dialog:
Single / Multiple Compositions, Use Dimensions From, Still Duration (default from Settings ▸
Import ▸ Still Footage), Add to Render Queue, Sequence Layers with Overlap, Duration and
Transition. `file.newCompFromSelection {single, dimensionsFrom, duration, addToRenderQueue,
sequence, overlap, overlapDuration, transition}`; `layer.addItem {duration}` for stills.
- Docs: parity.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
- Locked layers can't be selected (Timeline click, Select All, Ctrl+Up/Down; shy layers while
hidden too) and are left alone by Clear/Delete, Arrange, Layer ▸ Transform and Center Anchor
Point, which fail when every target is locked (`commands::unlocked`, `commands::selectable`).
- Deleting a parent unparents its children where they are, in the same undo step: the
pick-whip compensation moved out of `layer.setParent` into `layer::parent_fixes` /
`ParentFix::apply`, which now also handles separated X/Y Position.
- Bring Forward / Send Backward move each selected layer one step (a non-contiguous selection
was squeezed into one block).
- Center In View / Fit to Comp keep a 3D layer's Z (and Fit keeps Scale/Anchor Z); Reset /
Center / Fit / Center Anchor Point work with separated dimensions (`layer::update_position`).
- Duplicate and paste keep parents and track mattes, following the copies when both were
copied; paste dropped them always.
- Docs: agents, parity.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude