Region-of-interest frames render on the CPU path; the viewer keeps main's
frame drawing (Show Channel, exposure, ROI) and reads GPU-composited frames
back. Keeping frames as native egui-wgpu textures stays implemented behind
RenderSource::gpu_display (off).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The desktop viewer builds the GPU compositor on egui-wgpu's device and,
with Mercury GPU Acceleration, renders frames into RGBA8 textures that are
registered with egui-wgpu and drawn directly (no readback); the RAM preview
cache holds them under a video-memory budget. Pixels are read back only on
demand (Info panel, eyedroppers, histograms). Project Settings gets the
Video Rendering and Effects renderer choice. ui_gpu test: GPU viewer frame
matches the CPU one (skips without an adapter).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Type tool point/box text creation, double-click editing, caret and selection
in the viewer (viewer_text.rs), keyboard/IME/clipboard, box handles; engine
text.edit/endEdit/setSelection/moveCaret/insert/delete, layer.setText range,
caret insertion style, Paste Text and Match Formatting / Paste Text
Formatting Only (stubs removed); Character/Paragraph/Properties panels act
on the selection.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Graph Editor (ANM-4) and timeline keyframe tools:
- Transform box around two or more selected keys: corners scale time and
value about the opposite corner, edges one axis, the inside moves the
keys (keys.transform, one undo step per drag, times land on frames).
- Snap: dragged key times snap to the current time and other keys.
- Show Reference Graph: the other graph type, faint, behind the curves.
- Timeline Alt-drag of a key group's first or last key scales the group in
time about the other end.
- keys.transform takes dims (only the shown dimensions change).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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 <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>
Tracker panel (Window > Tracker): Track Camera / Warp Stabilizer (disabled),
Track Motion / Stabilize Motion, Motion Source, Current Track, Track Type,
Position/Rotation/Scale, Motion Target with Edit Target..., Options...
(Motion Tracker Options dialog), Analyze (1 frame back, back, forward,
1 frame forward; stop while running) with progress, Reset and Apply (Apply
Dimensions dialog). Track point widgets in the viewer: feature and search
regions with corner handles, attach point crosshair and track path, all
draggable through track.setPoint (one undo step per drag). Automation ids for
every widget; headless UI test.
Tracker: featureless regions no longer drift (ties keep the prediction, only
confident matches predict motion). docs/agents.md: tracking example.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Resolve conflicts with perf (layer cache / Arc<Buf>), export (RenderOpts.view: None
for output), timeline (separate dimensions + one-node POI visibility), mask/pen
viewer gestures (alongside camera tools and view-aware layer matrices), key
dialogs (alongside Camera/Light Settings), render queue + MCP command modules.
3D path tangent honours separated position; DOF blurs a per-frame copy so cached
layer buffers stay shared. New test: cached renders match uncached after camera,
focus, light and 3D view changes. Fix a clone-on-copy lint from main.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Viewer renders through the comp's 3D view (RenderOpts.view; FrameKey hashes
the view camera), shows the view name, and the bottom-bar 3D View dropdown
(automation id viewer.view3d) switches Active Camera/Front/…/Custom View 3.
- Orbit / Pan / Dolly tools drag the current view (camera layer in Active
Camera, merged into one undo step; view cameras otherwise).
- Handles, gizmo and picking go through the view camera; 3D layers move in
the view plane at their depth.
- Camera frustum + POI and light position/direction wireframes
(viewer.camera.<id>, viewer.light.<id>).
- Camera Settings / Light Settings dialogs open from New Camera/Light,
Camera/Light Settings and Layer Settings; OK runs the engine commands.
- Timeline: POI only for two-node cameras/auto-oriented lights; "Z Rotation"
label on 3D layers.
- Headless egui_kittest tests (UI wiring + opt-in wgpu snapshots); fix the
remaining workspace clippy lints.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
