* EXR export: write the output space's chromaticities attribute (#3037)
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
* EXR chromaticities: tests for unmanaged and PQ ProEXR, every space once
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
* EXR export: note why the comp background is added before decoding (review point)
CodeRabbit asked to convert Comp.background to the output space before
compositing. Every output path (Image::to_rgba8_over) adds the background to
the output-encoded frame as it is, so the EXR now matches the other outputs;
converting would make the EXR colour differ from the PNG of the same comp.
Comment only.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
* Format the merged code with rustfmt
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Sonnet 5.5 <noreply@anthropic.com>
* Plug-ins: API 2 (PluginHost, padding, layer_span)
Split out of the OpenFX work so it can be reviewed on its own. Additive; the WebAssembly ABI
stays at 1.
- point3 / layer / text / hidden parameters, integer sliders, parameter groups.
- EffectPlugin::padding (transparent pixels around the buffer, at most 4096 per side).
- EffectPlugin::render_v2 with a PluginHost: the input at other times, other layers, parameters
at other times, frame rate, per-instance key, the layer's source range.
- EffectEnv::layer_span from the renderer; MAX_PLUGINS 1024.
- plugin_error: a plug-in effect's last render error, for the UI.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KxacwTpUwqyfpcLgKW8yjS
* Plug-ins: external effect helpers (crates/helper-host)
Native plug-in formats run in separate helper programs, never in EffectCraft's process
(docs/adr/0001-external-effect-helpers.md). New safe-Rust crate effectcraft-helper-host (L3,
native only, unsafe forbidden): it finds helper programs, starts each as a child process and
registers its effects through plug-in API 2, so the UI and command surface need nothing new.
- Protocol v1 (docs/external-helpers.md): JSON lines over stdin / stdout (helper replies are
prefixed so plug-in chatter is ignored); pixels go through a frame exchange file (/dev/shm on
Linux), never through the pipe. Render-time callbacks for the input at other times, other layers
and parameters at other times, with nested renders through the same helper.
- A helper that exits, hangs past its timeout or breaks the protocol is stopped. The render fails
with a message, the frame is left as it was, and the helper restarts for the next render. An
effect that stops its helper 3 times is turned off (helper_blocklist.txt).
- Opt-in: nothing starts helpers unless the user asks (Effect > Scan for Effect Helpers), or opts
in to starting them at launch with EFFECTCRAFT_HELPERS=1, an environment variable, so writing
to the settings folder alone can't run code. effect.helpers.scan / load are refused for
confined agent sessions (confine.rs), like file.executeFile.
- Discovery: helpers/ next to the app (Contents/Helpers on macOS), helpers/ in the settings
folder, EFFECTCRAFT_HELPER_PATH.
- Commands effect.helpers.list / scan / load; Effect menu entries (translated); the last render
error of an effect shows as a warning sign after its name in Effect Controls.
- serve(): the helper side for Rust helpers. tests/it/main.rs runs the whole protocol (render,
padding, callbacks, nesting, threads, crash, restart, block list, hang) against a fake helper,
with nothing to install.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KxacwTpUwqyfpcLgKW8yjS
* Effect helpers: address review (start failures, frame file mode, nextest listing)
- A helper that can't start (not installed any more, restarting too often, no frame exchange
file) is reported but no longer charged to the effect being rendered: it is Failure::Refused,
not Failure::Broken, so it never counts toward turning that effect off. New check in
tests/it: once the helper is out of restarts, renders of an effect fail without blocking it
(fails without the fix: the effect was turned off after 3 such renders).
- The frame exchange file is created owner-only (0o600) on Unix: it holds the user's frames and
/dev/shm is shared. Asserted in the frames unit test.
- tests/it (harness = false) speaks the libtest listing protocol cargo-nextest uses:
`--list --format terse` prints `helper_protocol: test` (nothing with `--ignored`), and
`helper_protocol --exact` runs the checks.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KxacwTpUwqyfpcLgKW8yjS
* Effect helpers: bound writes to a helper, drain stderr, keep callbacks in step
- Writes to a helper go through a writer thread with the request timeout: a
helper that stops reading its stdin (hung with a large callback answer or
render request pending) no longer blocks the render thread forever while
holding the helper.
- stderr is drained as bytes (lossy, in 64 KiB pieces) to the end: output that
isn't UTF-8 stopped the reader, closing the pipe under the helper (EPIPE /
SIGPIPE on its next write); lines were unbounded.
- Callback images that can't be written are answered with `null` instead of
failing the render while the helper waits (which left the protocol out of
step); a frame that can't be written before the request is sent is not
charged to the effect.
- Mid-render calls use the render's own process: no respawn or heartbeat ping
while the helper is waiting for an answer.
- Waiting for a busy helper is bounded (load timeout) instead of forever;
status() no longer blocks on a running render.
- Reap the child when start-up fails after spawning; cap the block list read.
- Scripts start helpers only with Allow Scripts to Write Files and Access
Network on (they run native code), as for File.execute().
- helper-host declares the workspace's no-panic crate lints; the desktop
main() keeps its doc comment.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Effect helpers: rustfmt the fake provider, build the test session in its initializer (clippy)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* Plug-in Library: offer WebAssembly API 1 releases only; a helper already stopped mid-render isn't charged again
- WasmPlugin loads only modules at the WebAssembly ABI version, which stays 1 while
PLUGIN_API_VERSION is 2: share it as effects::plugin::WASM_API_VERSION and have the
library's compatibility check use it, so it never installs an API 2 release that
can't load.
- with_running: a process that is already gone was stopped by what broke it (a nested
render, charged there), so this render fails without charging its own effect.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* frames: plug-in effects count as reading other frames (plug-in API 2)
With main's narrowed frame invalidation (#2795), an edit inside a precomp under an
effect that reads its layer at other times must reach the layer's whole span.
Plug-in API 2 gives every plug-in effect the input at other times, so any effect
outside ec. counts.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: FredApps <153173854+FredApps@users.noreply.github.com>
Add After Effects project import with bounded parsing, explicit loss reports, and regression coverage.
Fetch the cleaned external test corpus at commit 97262276f625afdeeb61787e4cbb74b3f17af510 and verify each fixture against the pinned SHA-256 manifest.
- Rename RenderOpts::scene_output to skip_hdr_step (Pipe::without_hdr_step):
the consumer decodes with Pipe::output_linear or applies the step itself.
- Alpha-only EXRs hold the alpha as it is in every output space (it is
coverage, not encoded colour; it used to be sRGB-decoded).
- Tests: a half-opacity layer over a coloured background (premultiplied and
RGB-over-background paths, golden hashes taken before the change), Rec.
2100 PQ and HLG EXR outputs, raw alpha, and a visible skip of the GPU test
without an adapter.
- docs/architecture.md: the Working Gamma curve for unmanaged projects, and
no HDR step for unmanaged projects or PQ / HLG outputs.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
OpenEXR renders (Render Queue sequences and Save Frame As ProEXR) received
the frame after Project Settings > HDR, so Compand and Tone Map (the default
of every OCIO project) compressed highlights and changed values below 1.0
before the writer decoded them, always with the sRGB curve.
- RenderOpts::scene_output: the top-level comp converts to the output space
without the HDR step (CPU and GPU walks, via Renderer::output_pipe).
- Pipe::output_linear: the writers decode with the output space's curve
(the Working Gamma's when unmanaged) instead of a fixed sRGB curve.
- Render Queue EXR jobs and ProEXR set the flag; PSD layers, 8-bit stills,
movies and the viewer keep the HDR step. The flag is part of the viewer
frame and disk cache keys (opts_hash).
Golden hashes, taken before the change, pin PNG/TIFF/Targa bytes for
8/16/32 bpc x Clip/Compand/ToneMap, Clip-mode EXR samples with an sRGB
output, and the layered PSD bytes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Carry property, Font and Media Replacement overrides into the collapsed nested EvalCtx so nested layers render beyond the precomp frame instead of falling back to a clipped, flattened image. Key the layer cache on instance overrides to keep distinct collapsed instances isolated.
dominant_direction weighted texels by their raw channel sum before the
light's colour tinted the radiance, so equally bright red and blue regions
on opposite sides cancelled to no sun and no key — while a red Environment
light's tint removed the blue contribution and left the scene lit
directionally red, with no shadow for its Cast Shadows to show. The tint
now weights the direction sum (a white light weights [1; 3], a coloured
one its normalised colour), so the sun and key are derived from the
radiance the light actually emits; add_environment computes the tint once,
before the direction pass, and reuses it for the texel tinting. An
achromatic image is unaffected (its weights scale uniformly), so the
default studio and white-lit scenes keep their shadows exactly.
Tests: opposed red and blue texels cancel to a white light but a red tint
points the sun straight at the red one (a blue tint, at the blue one); end
to end, a red Environment light over an image with equally bright red and
blue regions on exactly antipodal positions casts the shadow a white light
over the same image does not — and the shadow falls opposite the red
region, the side the tinted radiance comes from.
Two review points on the merge:
- env_pixels returned None both for an unconfigured light (no Source, no
Environment Layer) and for a failed source (a deleted layer, missing
footage, a failed decode), so a selected source that failed silently
swapped in the default studio environment — relighting and reshadowing
the scene behind the user's back. It now tells the three apart
(EnvPixels::Absent/Image/Failed): only the unconfigured light uses the
default; a failed source contributes nothing, exactly like a layer whose
source fails renders nothing. The repair the user can act on stays where
it already lives — missing footage is flagged on the item, with the
relink commands to fix it.
- The docs claimed only a uniform image casts no shadow. A non-uniform one
can be directionless too: opposing bright regions cancel, and anything
under 1% directional is rejected. agents.md, architecture.md and the
sun/dominant_direction doc comments now say an image without a
sufficiently strong dominant direction.
Tests: an unreadable Environment Layer (auto-picked), an unreadable
selected Source and a deleted one all light nothing — pixel-equal to the
unlit render, no studio default, no default-environment shadow — while an
unconfigured light still lights; two equal bright spots at opposite
azimuths cancel to no sun and no key, and tilting the balance re-emerges
pointing at the brighter spot.
The default studio environment's level-preserving mean of 1 acted like a
100% white Ambient light: with only the Environment light on, a white floor
rendered at full white (95% of the frame saturated) while its shadow core
went to pitch black — a fog over the scene, nothing like After Effects'
default. Three changes bring the look in line, CPU and GPU alike:
- The default environment is a dim studio now: a solid-angle-weighted mean
of 0.3 (and a stronger key gradient), so a white floor reads a mid gray
and the light's colour x intensity still scales the level.
- The shadow occludes only the image's directional (key) fraction of the
light — |sum of dir x radiance| / sum of radiance, computed beside the
dominant direction and carried in the scene — so the fill keeps shining
inside the shadow: an area-light shadow, partial like After Effects'
(a lone bright spot on black still shadows almost fully; a uniform image
not at all).
- The environment shadow map's penumbra has a floor — eight output pixels,
or four map texels where those are coarser — because the map covers the
whole scene bounding sphere rather than the view, and its texels would
otherwise stair-step the edge (all the more in a draft render's flat 512
budget). Shadow Diffusion widens it further, as before.
Tests: the key fraction tracks directionality; the default keeps its dim
level, its direction and its key; the default and a bright key both shadow
the floor (the default partial, the key deep) with Cast Shadows off lit
everywhere; and the full look — a mid-gray lit floor (no fog), a partial
core, and a soft edge ramp in quality and draft renders alike.
After Effects' default environment map casts shadows out of the box: an
Environment light with Cast Shadows on shadows the scene with no Source
set. The flat default cancelled its dominant direction to zero, so the
option did nothing until a Source image arrived. Give the default a soft
studio gradient (bright above and toward the initial camera, dark below
and behind), level-normalised so the light's colour x intensity still
sets the overall brightness; its dominant region drives the existing
shadow pipeline, CPU and GPU alike.
The Casts Shadows option Environment lights got is only half a fix if
nothing shades for it: an image lights the scene from every direction,
and what occludes that light is the image itself — its dominant bright
region, the sun in a sky map.
- dominant_direction finds it: the radiance-weighted mean texel
direction (solid-angle weighted, rotation applied). A uniform image
cancels to zero — a flat default environment shines from everywhere
at once and casts no shadow, which a uniform environment test pins.
- The shadow is one orthographic map over the scene from that
direction, after the lights' maps, like a parallel light's: PCF
widened by Shadow Diffusion, darkened by Shadow Darkness, cleared
when nothing casts, the image is directionless, or the texel budget
drops it.
- It darkens the environment's own diffuse and specular light on
Accepts Shadows surfaces and counts in Cast Shadows Only. CPU and
GPU (WGSL) do the same; Globals carries the environment's sun
direction and shadow settings (40 → 44 floats, preflight updated).
A bright-disc environment turned to shine from behind the camera now
shadows a sphere onto the floor behind it, Cast Shadows off lights it
evenly again, and the GPU scene's sky gradient takes a shadow-casting
Environment light. Also: the renderer-switch toasts read "...renderer,
which draws 3D models", the dialog's Casts Shadows checkbox gets an
auto id (dialog.light.casts) the tests click, and the docs' Environment
notes cover the shadow.
After Effects lists Targa among its still-image output formats; EffectCraft
imported Targa (#745) but could not render to it.
- OutputFormat::TargaSequence ("Targa Sequence", `.tga`, numbered like the
other sequences; `tga` / `targa` as a format name or output extension).
- Written by the `image` crate's Targa encoder (its `tga` feature, already
enabled in effectcraft-media; no new crates, Cargo.lock unchanged), with
run-length compression off: an 18-byte header, top-left origin, 24-bit BGR
for RGB, 32-bit BGRA with 8 alpha bits in the image descriptor for
RGB + Alpha (straight or premultiplied), 8-bit grey for Alpha.
- The render queue's size estimate counts the uncompressed bytes.
- CLI usage, the renderQueue command specs, README, architecture.md and
file-format-parity.md name the new format.
Tests: each Targa frame holds exactly the pixels of the PNG sequence of the
same job, with the expected header, numbering and size; the frames read back
through the Targa importer as the same picture (straight, and premultiplied
when interpreted so); the image-sequence round trip, the format parser and
the renderQueue commands cover it too.
An Environment light had no visible effect, and its Light Settings dialog had
no Casts Shadows option — both halves of #2436.
No effect had two causes:
- Classic 3D (the default for new comps) skips Environment lights entirely,
so creating one did nothing. Adding one (or changing a light's type to it)
now switches the comp to Advanced 3D in the same undo step, with a toast,
exactly as model and primitive layers already do; switching back to
Classic 3D with an Environment light in the comp explains itself too.
- In Advanced 3D, a light with no Source and no Environment Layer produced no
environment at all. It now falls back to a flat default environment of the
light's colour × intensity, as After Effects does, so the light always
lights the scene per its parameters.
Cast Shadows was missing because the dialog and the light's property groups
shared one gate (Falloff and Shadows together) that excluded Environment.
The two are now split: every light but Ambient gets Casts Shadows, Shadow
Darkness and Shadow Diffusion (stored, edited and carried over on type
changes), while Falloff stays on Parallel/Spot/Point only — an environment
light shines from every direction at once and has no use for a falloff.
Tests: the renderer lights a card from a sourceless Environment light (colour
and intensity drive it, zero intensity lights nothing), the engine switches
Classic comps to Advanced 3D on creation and type change (one undo step,
toast, and the Classic 3D switch-back toast), Environment lights take and
carry shadow options but no Falloff, and the dialog ticks Casts Shadows on
a new Environment light.
Load PDF document objects through the pinned craft-pdf parser and convert them into EffectCraft's existing drawing model with bounded traversal, recovery and retained data. Preserve generation numbers, stream limits, encrypted-document refusal and reported repairs.
Retain app-owned drawing, EPS, fonts and content/image decoding. Assert early excessive-nesting rejection without partial art, and cover tolerant arrays on native and WASM.
Validated with the22-stage local matrix and exact-head FreeBSD, Windows ARM64 and packaging checks.
Co-authored-by: Codex <noreply@openai.com>
After Effects 25.4's Quick Offset staggers selected layers, or each
layer's selected keyframes, in the order they were selected: the first
stays, the last moves by the drag and the ones between by equal steps,
landing on subframes.
layer.quickOffset {delta, layers?} moves each layer's start, in and out
point by total * i / (n - 1), worked out once in ticks with integer
arithmetic, so 1 frame over 4 layers gives 0, 1/3, 2/3 and 1 frame
exactly. keys.quickOffset {delta} does the same per layer for the
selected keys, the layers in the order their first key was selected;
every selected key of a layer, across its properties, moves by that
layer's comp-time offset through its start and stretch (reversed too),
keeping values, interpolation, easing and labels. Locked layers are
skipped and at least two layers are needed. With merge and fromStart,
delta is the whole drag and each step starts again from before it, so
the drag is one undo step and a key passed over survives. A delta or a
destination out of the range of times is an error, not a clamped move.
Docs: agents.md; architecture.md notes Quick Offset as the exception to
times snapping to frames.
Viewer: each composition keeps its Resolution in the project, as in After Effects (#417)
# Conflicts:
# crates/ui-egui/src/control.rs
# crates/ui-egui/src/menus.rs
# crates/ui-egui/src/panels/viewer_tools.rs
Dragging the in or out edge of a selected layer's bar now trims every
selected layer by the same delta from its own in/out point, as in After
Effects. layer.timing gains relative inDelta/outDelta params (seconds,
frame-snapped), clamped to the comp start/end and to one frame of layer;
the drag stays one undo step via the merge key.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Project files now record activeComp and openComps next to savedBy, and
file.open restores them, so a project reopens on the comp it was saved
on (desktop app, CLI and MCP all open through file.open). Older files
and ids that no longer name a comp fall back to the first comp; older
versions ignore the new keys.
Fixes#748
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Preserve legacy selection repair, modifier routing, viewer lifecycle and workspace persistence through the shared docking integration. Qualify the complete workspace gate by refreshing the 18 stale Audio Spectrum hashes for the existing linear renderer, with an independent synthetic-tone regression.
Progress docs per craftrules standards/progress-docs.md: target-app parity, gaps, roadmap with alpha gate, readiness by audience (full / mainstream / essentials) with Opus 5.5 hours, and feature, format, hardware, UI and localization parity docs.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cause: at Half, Third and Quarter resolution (the viewer's Auto resolution
in most windows) every movie frame was converted from Y'CbCr to f32 RGBA at
full size and then resampled down. In the browser (wasm, one thread) that
was about 8 ms converting a 1080p frame, 6 ms resampling it and 2 ms
zeroing a 33 MB buffer, per layer and frame, for a frame shown at a
quarter or a ninth of its pixels; the footage frame cache held the
full-size frames.
Fix: FootageSource::frame_at_size asks for a frame shown at a given size
(default: the full frame, as before). The renderer asks for it where it
resampled footage (below 3/4 scale; not for proxies, fields or Interpret
Footage's pixel options, which need the full frame). MediaPool makes opaque
4:2:0 movie frames of the footage's own size there: it box-filters them to
half size in Y'CbCr before converting (each 2x2 block of luma, and the
[1 6 1]/8 neighbourhood of its chroma sample, which is the mean of the
upsampled chroma its pixels get), resamples the rest of the way and caches
the result per size. Conversion is linear until colours clip, so this is
the RGB box filter resample starts with, except in blocks where some
colours clip. Other frames convert at full size and resample as before.
In the browser the conversion and resampling take about 4 ms instead of
16. Docs (architecture).
Tests:
- convert::scaled_conversion_matches_resampling_the_converted_frame: half,
third, quarter and odd sizes of an unclipped 4:2:0 frame are within 1e-5
of resampling the converted frame; larger sizes, odd frame sizes and
4:4:4 convert at full size.
- tests_footage_size::reduced_renders_take_footage_resampled_by_the_source:
a source that resamples frames itself renders the same frames as one
that doesn't, at 8 and 32 bpc and every resolution, and is asked only
below 3/4 scale, and not with Invert Alpha.
- footage::h264_frames_at_reduced_sizes (ffmpeg fixture): 1080p H.264
testsrc2 frames, whose saturated colours clip, at 960x540, 640x360,
480x270 and 323x182 are 58-62 dB from the resampled full frames, and
are cached per size.
- convert's ignored 1080p bench also times the conversion at a third.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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 <noreply@anthropic.com>
Cause: Auto dropped to Half below 75 % magnification, so text between
50 % and 75 % was rendered with fewer pixels than the screen shows and
looked soft. Below 100 % the frame texture was minified with a plain
bilinear sampler and no mip levels (Full at 46 % skipped most frame
pixels), so edges stair-stepped.
Fix:
- Auto renders the pixels the magnification needs, as in After Effects:
the coarsest whole factor that still gives every screen pixel a
rendered one (Full above 50 %, Half down to 33.3 %, Third down to
25 %, Quarter below).
- GPU frames: the display texture carries a full mip chain, each level
the 2 x 2 mean of the one above (display.wgsl `mip`, same bind group
layout as `display`), sampled trilinearly with Viewer Zoom Quality
More Accurate (Faster keeps the nearest pixel of the full-size frame).
- CPU frames (egui-wgpu textures have no mips): uploaded averaged down
by the whole factor that leaves about one texel per screen pixel, the
same box average as the texture-limit fit (#201), re-uploaded when the
magnification calls for another factor; drawn with texture coordinates
that keep each texel over its pixels when the size isn't a multiple.
Show Channel / exposure textures follow.
Tests: gpu tests::display_frames_are_mipmapped (level count and level 1
= 2 x 2 means of level 0), viewer_tools
auto_resolution_follows_the_magnification (60 % was Half) and
minified_frames_keep_their_texels_in_place.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Text is vector in After Effects and stays sharp at any Scale. Here a
text layer was drawn at its font size and the bitmap resampled by Scale
unless Continuously Rasterize was on, so text grown with Scale went soft.
This reworks #200 (reverted in 29c4d3a for kinetic_typography).
Why kinetic_typography failed: its time remap key at 1.9 s sits on
frame 23 (1.917 s), so main-comp 0.3 s shows the precomp at 1.6026 s,
but the test compared it with the precomp rendered at 1.6 s. The moving,
motion-blurred title already differed by 0.89 of the 1.0 mean-difference
budget on main (0.987 in all); with continuous rasterisation the "Sub"
line, whose expression scale is 84.00 % at 1.6 s and 84.105 % at
1.6026 s, falls on either side of the 2^-1/4 quarter-octave step and was
drawn at 0.84 at one time and at 1.0 at the other, pushing the total to
1.075.
Fix: raster_scale treats text layers as always continuously rasterised
(shape layers and vector footage still follow the switch), and rounds
the quarter-octave step up past rounding noise only: an unscaled layer
at a fractional position measured its scale as 1 + 1e-15 and was
rasterised at 2^1/4, softening unscaled text. The QA test now compares
the remapped precomp with the precomp at the time the remap really
shows (read back from the property): difference 0.63, all of it the
title's motion blur, the Sub line identical.
Tests: tests_collapse::text_scaled_up_stays_sharp_without_the_switch
(from #200: 10 px text at 800 % matches 80 px text),
tests_collapse::unscaled_text_rasterises_at_the_output_scale (fails
without the noise tolerance), automation qa kinetic_typography.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cause: the interior styles were blended over the layer body with the
content's coverage folded into their opacity. On an edge pixel at 50 %
coverage a Gradient or Color Overlay went over the half-transparent body
as a half-transparent layer, so the result kept a quarter of the layer's
own fill and its alpha rose to 0.75: a light rim (the white fill
showing through) on styled text.
Fix: blend_clipped composites the interior styles (Gradient Overlay,
Color Overlay, Satin, Inner Glow, Inner Shadow and the inside of
Stroke) onto the layer within its shape: the body is divided by the
content coverage, blended with the style at its own opacity, and
multiplied back, so the alpha is kept and an edge pixel mixes the style
with the layer's colour inside the shape only, as a clipped layer does.
Fill Opacity and Blend Interior Styles as Group behave as before.
Tests: tests_styles::overlays_leave_antialiased_edges_clean (a masked
square with half-covered edge columns; Color Overlay, Gradient Overlay
and an inside Stroke now match a plain layer of the overlay colour;
Color Overlay's edge was 0.41 red against 0.23 before).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>