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vangel76andClaude Opus 5.5
8d41ef7218
After Effects feathers both edges of the wiped wedge (the start ray too) with a Gaussian whose width is constant in pixels: Completion 40, Start Angle 30, Counterclockwise, Feather 20 (AE 2026, case 904 E12) fits sigma = 0.4 x Feather = 8.0 px at every radius (mean alpha error 0.0002 over the frame). EffectCraft ramped only the moving edge, linearly over Feather degrees, so the edge was 14 px wide near the centre and 140 px wide at 400 px out, and the start edge was hard: 378 of 5184 grid points off (max 111/255, 6.6 % of pixels > 8), now 1 (max 3), 0.009 % of pixels > 8 (near the centre). CPU and GPU (the kernel now measures distances to the two rays). 0 % and 100 % are unchanged, so the three Transitions presets keep their end frames; their Feather (6 / 10) now means pixels. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
76 lines
6.9 KiB
Markdown
76 lines
6.9 KiB
Markdown
# Effects parity
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> **Last reviewed:** 2026-10-12 · **Last updated:** 2026-10-12 · **Change:** minor (effect colour labels; earlier change: parameter count and closed issue references re-audited against `upstream/main` 470ea7a3 and the generated effects.md) · **Target:** Adobe After Effects 2026
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Effects are the deepest single area of After Effects. This page separates the four questions
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that a single "306 of 306" hides: does each effect exist, does it run fast, does it look like
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After Effects', and does the preset library exist. The per-effect catalogue is the generated
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[effects.md](effects.md); the overall numbers are in [target-app-parity.md](target-app-parity.md).
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## Summary
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| Question | Value | Kind |
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|---|---|---|
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| Effects present | **306** registered, 3,017 parameters; all of After Effects' effects by name (298 at the M9.11 count) plus Obsolete and our own | Measured: registry, [effects.md](effects.md). After Effects 26.5's `Plug-ins/Effects` holds 306 `.plugin` bundles in 231 entries (one bundle can hold several effects, so this is a cross-check, not a match) |
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| Parameter names, order, popups, units, defaults | aligned in M9.12 | Agent-checked against After Effects' documentation, not against a live dump |
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| On the GPU | **280** (92%) | Measured: registry flags; GPU vs CPU agreement tested per effect |
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| 32-bit float, no clamping | 306 | Measured: registry flags |
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| **Rendered output matches After Effects** | **unmeasured** | No effect is compared with an After Effects render yet. `effectcraft_effects::fidelity::compare_frames` exists for the corpus ([fidelity/README.md](fidelity/README.md)); simulation effects are pinned by golden hashes of our own output (M13.27) |
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| Animation presets | **54** original presets (8 text-animator, 23 Transitions, 23 Backgrounds) against After Effects' **621** `.ffx` presets | Measured: `crates/engine/presets/text_animators.json`, `crates/engine/presets/transitions.json`, `crates/engine/presets/backgrounds.json`; the After Effects `Presets` folder |
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| 26.x additions | Curl Noise (26.3) present (#463 open); effect colour labels (26.5) present in Effect Controls only, not in the Timeline; the rebuilt Effect Controls (26.5) missing | Release notes |
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**Breadth ≈ 85%** (presets weigh in; the effects themselves are ≈ 100%). **Ready ≈ 40%**: until a
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corpus compares renders, each effect is assumed to differ somewhere, and users keep confirming it.
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## By category (from [effects.md](effects.md))
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| Category | Effects | On the GPU | Known differences or bugs |
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|---|---:|---:|---|
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| 3D Channel | 8 | 8 | Cryptomatte selection can't be set in the UI and the GPU path is slow (#473; quoted names with commas fixed); multi-layer EXR decode shared (#474 open: f16 storage and cache sizing remain) |
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| Audio | 13 | 0 | CPU by design (applied in the mixdown) |
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| Blur & Sharpen | 16 | 15 | Radial Blur keeps the layer edges as After Effects 2026 (713 now pixel-identical); Gaussian Blur interaction and output to be measured first ([fidelity/ae-2026-acceptance.md](fidelity/ae-2026-acceptance.md)) |
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| Channel | 13 | 13 | — |
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| Color Correction | 40 | 40 | Tint has Swap Colors (#963); ACES 2.0 / OCIO 2.5 (26.5); Apply Color LUT (#514) and 32-bpc blending (#494) are closed |
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| Distort | 39 | 35 | Liquify has no viewer brush; #303 (Mesh Warp drag) and #534 (CC Power Pin Unstretch) are closed |
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| Expression Controls | 9 | 9 | — |
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| Generate | 26 | 25 | Fractal on the CPU (needs f64); #526 (Reset) and #536 (Write-on marks) are closed |
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| Immersive Video | 12 | 12 | — |
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| Keying | 12 | 12 | Key Cleaner approximated; #533 (wire-removal Frame Offset) is closed |
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| Matte | 6 | 4 | Mocha shape reads our documented JSON, not Mocha's format |
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| Noise & Grain | 13 | 12 | Curl Noise (#463); Match Grain on the CPU |
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| Obsolete | 9 | 9 | — |
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| Paint | 1 | 0 | Tablet pressure not read ([hardware-parity.md](hardware-parity.md)) |
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| Perspective | 10 | 9 | Chromatic Aberrations pan/tilt crash (#580) |
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| Simulation | 18 | 18 | Particle Playground lacks Particle Exploder, text particles, ephemeral mapper; CC Particle World camera fixed (#397) |
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| Stylize | 25 | 25 | Glow's halo (coverage of a dim layer's edge) and blur width match After Effects 2026 renders; glows above the threshold match too (each channel 8 × (value − threshold + 0.061), measured at three thresholds and two radii); Composite Original's labels are swapped against After Effects (EffectCraft's On Top adds the glow over the original, which After Effects calls Behind); Motion Tile output size (#369) |
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| Text | 2 | 2 | — |
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| Time | 8 | 8 | #535 (Pixel Motion Blur, Vector Detail) is closed |
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| Transition | 17 | 17 | Venetian Blinds matches After Effects 2026 renders (band phase from the layer centre, Gaussian feather on both edges) except within ~6 px of the layer edge (up to 48/255); Radial Wipe's Feather matches After Effects 2026 (a Gaussian of σ = 0.4 × Feather pixels on both edges of the wedge) |
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| Utility | 9 | 7 | — |
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Third-party bundles in After Effects (Cineware, Mocha AE) are out of scope; Keylight is
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implemented under a generic name ("Key Light").
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## Estimate
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**≈ 70–130 h**: a fidelity corpus case per effect at default and one non-default setting, compared
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with After Effects renders, and the fixes they turn up (40–80 h, most of it parallel, but every
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reference render needs After Effects on the owner's Mac); an original preset library covering
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After Effects' preset categories (Behaviors, Shapes, Synthetics, Text, Image effects remain; Backgrounds and
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Transitions exist) 15–35 h; the open effect bugs 10–20 h. Moving Fractal and the analysis effects to
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the GPU is performance, not parity.
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## Revision history
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| Date | Change | Summary |
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| 2026-10-19 | minor | Glow (original colours): bright pass per channel, 8 × (value − threshold + 0.061), measured against After Effects 2026 (CPU and GPU) |
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| 2026-10-19 | minor | Glow (colour channels): the glow covers the layer's blurred alpha, blur σ = 0.384 × radius, measured against After Effects 2026 renders (CPU and GPU) |
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| 2026-10-19 | minor | Radial Blur repeats the edge instead of sampling transparency outside the layer, measured against After Effects 2026 renders (CPU and GPU) |
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| 2026-10-19 | minor | Venetian Blinds: stripes measured from the layer centre, both band edges Gaussian (σ = Feather / 2), measured against After Effects 2026 (CPU and GPU) |
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| 2026-10-19 | minor | Radial Wipe: Feather is in pixels on both edges of the wiped wedge (was degrees on the moving edge only), measured against After Effects 2026 (CPU and GPU) |
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| 2026-10-12 | minor | Parameters 3,014 to 3,017 (effects.md); #303, #514, #526, #533–#536 marked closed instead of pending |
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| 2026-10-12 | minor | Effect colour labels (26.5) added in Effect Controls |
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| 2026-10-12 | minor | Tint's Swap Colors button and agent-drivable command (#963); undo/redo, instance targeting, animated layer-time edits and invalid-input tests |
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| 2026-10-10 | major | First effects parity checklist |
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