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vangel76andClaude Sonnet 5.5
19e4fc7c60
Open-issue count, crash list, closed-issue references, localization
catalog counts, export formats and #include status checked against
upstream/main 470ea7a3. Rows 7, 14 and 21 of gaps.md untouched (pending
in PRs #1102, #792, #1098).
Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
44 lines
4.4 KiB
Markdown
44 lines
4.4 KiB
Markdown
# Hardware parity
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> **Last reviewed:** 2026-10-12 · **Last updated:** 2026-10-12 · **Change:** minor (closed issue references re-audited against `upstream/main` 470ea7a3) · **Target:** Adobe After Effects 2026
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Each piece of hardware After Effects uses, per platform, against EffectCraft. Ours comes from the
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code at `origin/main` 1446e27 (`crates/gpu`, `crates/render`, `crates/ui-egui`) and the issue
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tracker; After Effects' from its documentation (Mercury GPU Acceleration, Multi-Frame Rendering,
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hardware-accelerated decode and encode, Mercury Transmit) and its bundle.
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**Overall ≈ 40%** (estimated). The GPU compositor and 280 GPU effects are a real strength and run
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in the browser too; hardware video decode and encode, video-out devices, tablets and multiple
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monitors are missing, and two GPU start-up failures are open.
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| Feature | After Effects 2026 | EffectCraft macOS | Windows | Linux | Web | Notes / evidence |
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|---|---|---|---|---|---|---|
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| GPU compositing and effects | Mercury GPU (Metal; CUDA / OpenCL / DirectX on Windows) | yes, Metal via wgpu | Vulkan yes; **Direct3D 12 fails** (FXC can't compile the `pointwise` kernel, #613) | Vulkan | WebGPU, in frame workers | 280 of 306 effects on the GPU, checked against the CPU renderer; Fractal and the analysis/tool effects stay on the CPU ([effects-parity.md](effects-parity.md)) |
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| CPU fallback and device-loss recovery | yes | yes | yes; Windows ARM64 Adreno panic after device loss (#591, closed) | yes | yes (#225 fixed) | Out of video memory falls back to the CPU (#106) |
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| GPU detection and choice | GPU info, renderer choice | Backend Auto per comp | "GPU isn't being detected" (#596, closed); Intel HD 5500 fix unverified (#198) | yes | yes | No settings page listing adapters yet |
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| Multi-core rendering | Multi-Frame Rendering | rayon pools; preview scheduler sized to the render pool | same | same | Web Workers, one engine per worker | No benchmark against Multi-Frame Rendering |
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| Hardware video decode | H.264 / HEVC / ProRes (Apple silicon) | none (software, FilmCraft) | none | none | none | FilmCraft has VideoToolbox, Media Foundation/DXVA and VA-API paths to borrow (gap 15) |
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| Hardware video encode | H.264 / HEVC via VideoToolbox, NVENC, Quick Sync (render queue and Media Encoder) | none | none | none | none | #498 asks for NVENC (answered: Nvidia's SDK needs FFI, which the no-`unsafe` rule forbids; open PR #819 adds hardware decoding); our software encoders are slower and lack B-frames |
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| Video output devices | Mercury Transmit to AJA, Blackmagic, second display | second preview window only (Video Preview) | same | same | — | No SDI/HDMI device output |
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| HDR display | HDR monitoring on EDR / HDR displays | tone-mapped SDR view; no EDR output | no HDR output | no | no | Colour engine handles HDR maths (Rec. 2100 PQ/HLG output files) |
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| Pen tablets (pressure, tilt) | yes, for Paint and Roto | Brushes panel has pressure options, but no tablet pressure is read | same | same | same | Paint strokes store pressure per vertex; input never fills it |
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| Multiple monitors | panels and windows across screens | panels move into their own native windows on any screen (Move Panel to New Window; desktop builds) | same | same (#486) | — | gap 20 |
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| Touch / trackpad gestures | pinch zoom in viewers | egui pointer and scroll; no pinch-to-zoom audited | — | — | — | — |
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| Audio hardware | Core Audio / ASIO / WASAPI, device choice, latency | cpal output; preview sound late after a start offset (#504 open; #554 closed) | cpal | cpal (ALSA) | Web Audio | No input or device latency settings |
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| Machine learning acceleration | Apple Neural Engine / GPU for Object Matte, Roto Brush 3 | CPU inference (pure Rust, rayon) | CPU | CPU | CPU | No GPU inference for MobileSAM or MediaPipe |
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| Memory management | RAM reserve, disk cache | RAM Reserved, Reduce Cache When Low on Memory, disk cache | same | same | OPFS disk cache | good |
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## Estimate
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**≈ 60–120 h**: Direct3D 12 and adapter start-up fixes 6–12 h; hardware decode on three platforms
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20–35 h and encode 15–30 h (borrowing FilmCraft's work); multiple monitors 10–20 h; tablet pressure
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4–8 h; HDR output 8–15 h. Needs Windows and Linux GPUs we don't have locally, and a human for
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the Adreno and Intel cases.
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## Revision history
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| Date | Change | Summary |
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| 2026-10-12 | minor | #591, #596 and #554 marked closed; #498 answer and open PR #819 |
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| 2026-10-10 | major | First hardware parity document |
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