* Viewer exposure on the full float range of 32 bpc frames (#2797)
32 bpc viewer frames on the desktop are rendered without the HDR step (skip_hdr_step,
#2916) and kept as half floats in the RAM preview. A display pass on egui-wgpu's device
turns each frame into one RGBA8 texture with mips per viewer, in this order: decode,
exposure in linear light, Compand / Tone Map, encode, display colour, Show Channel,
rounding. Before, exposure was an 8-bit lookup applied after tone mapping, clamping and
the display conversion, so -2 EV could not bring values above 1.0 back.
- engine: viewer::DisplayPass describes the pass as data; its pixel() is the CPU
fallback (no device) and the shader's reference. It replaces exposure_lut /
display_transform. FrameEncoding records a frame's curve and the HDR step it still
needs. 32 bpc snapshots are taken without the HDR step; snapshot_rgba8 applies it.
- ui-egui: FrameImage::CpuF16 (half crate, F16C at run time), byte accounting at 8 bytes
a pixel in the cache and the prefetch estimates; display_gpu.rs + display_gpu.wgsl;
main viewer, snapshot and passive viewers draw through the pass; the 8-bit image other
panels read is made on demand with the HDR step; the Info panel shows float values.
- Half-float frames are not written to the disk cache yet.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Viewer display pass: f16 disk cache entries, window-device gating, review fixes
- Disk cache: half-float frame entries (format byte in the entry header, byte planes +
LZ4); 8-bit entries keep format 0 and stay valid. 32 bpc viewer frames are written and
read again, and the timeline's disk bar sees them. A damaged half-float entry is
deleted.
- The display pass runs on the window's egui-wgpu device, with or without the GPU
compositor (still building, failed, GL fallback). Its pipelines are made inside error
scopes; a backend that rejects them gets the CPU pass instead of a blank viewer.
- A new LUT of the same size (another ICC profile, Preserve RGB, another display) runs
the pass again.
- f32 to f16: one pass per L1-sized block, the NaN / infinity fix-up on the bits, no
fill of the buffer (4K: 4.7 ms, as the 8-bit conversion).
- Mips of odd-sized levels include the last column / row; the snapshot's half floats
and texture go with the snapshot; no placeholder texture ids; u64 size checks.
- Tests: LUT profiles and negative values against the shader, Bake reruns, the passive
viewer's colour, f16 disk round trips; exact comparisons allow 1 LSB on software
rasterizers. Docs: the display pass and the f16 disk entries in architecture.md.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Viewer f16 disk-cache test: temp dir removed on failure too, wait for the queued disk write
Review points: the test's directory was only removed by its last statement
(now tempfile::TempDir), and the frame is released before its disk write is
queued, so flush() could return early (now waits for the entry).
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
* Viewer: oversized half-float frames use the CPU display pass, so exposure/HDR come before the averaging down
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
* Viewer: fmt and a debug assert for the half-float upload path
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
* Disk cache: persist_missing also writes half-float frames
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
* Passive viewer: oversized half-float frames take the CPU display pass instead of leaving a stale texture
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Poison recovery, OsStr::to_str and char predicates only; S4325 casts are
f64 to f32 and stay.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
In After Effects solo is not time-dependent: while any AV layer is soloed,
non-soloed layers are excluded at every time. The renderer, nested/collapsed
3D paths, engine viewer helpers and viewer hit tests only counted solo layers
active at the current time, so outside the soloed layer's in-out range the
whole comp reappeared. Drop the time condition (audio already ignored it).
Update the #66 viewer regression test to the AE behaviour and add a render
test for it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Guides can store a percent of the comp so they follow comp-size changes
(View > Add Percentage Guide, Convert Guides to Percentage / Pixels); an
effect instance has an optional colour label (effect.setLabel, Effect Controls
header bar and Label menu). Both are serde-defaulted, so old projects load.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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 <noreply@anthropic.com>
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 <noreply@anthropic.com>
The Pan Behind drag passed its layer to the snapper's exclude list, which
dropped all of that layer's targets: its corners, edge midpoints and centre
as well as the anchor being dragged. The layer's box doesn't move in comp
space while the anchor pans (Position compensates), so those points are
valid targets.
The engine's per-layer snap targets are now one function, layer_targets,
which can leave out the anchor point. The gesture records its layer's
targets without the anchor as the drag begins and passes them to the
snapper (snap_with) as extra targets.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- GPU in browser job workers: each job worker opens its own WebGPU device
(deferred readbacks); the Render Queue export and the analyses' frame loops
are futures (render::passes, offload::run_request_async) whose frames
render in passes, awaiting the device between them. GPU particles and
Advanced 3D read back under keys too. workers.jobs reports passes and
readbacks; the smoke test measures them.
- Layer buffers in the browser's OPFS disk cache: frame workers back their
layer caches with a PrefetchStore; the page plans what to fetch before a
request from recent misses (LayerPrefetch over the shared DiskIndex).
- Templates embed footage (default on, size-capped with a warning) and
creating from a template extracts it next to the new project / into
browser storage.
- ICC LUT profiles (lut8/lut16/lutAtoB/lutBtoA, from the public ICC spec) in
Simulate Output > My Custom RGB, baked into a 3D LUT for the viewer.
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>
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