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Valentin KleinandClaude Opus 5.5
017d1aea1c
New Perspective Crop tool in the Crop flyout (C): drag a box or click four
corners, drag corners independently onto a skewed object, perspective grid
(Show Grid), Enter commits, Esc cancels. W/H/Resolution come from the Crop
tool's fields (Front Image, Clear), or the quad's mean side lengths.
Engine: image.perspectiveCrop {corners, width?, height?, resolution?,
interpolation?} maps the quad onto an upright canvas through the
quad-to-rectangle homography (Heckbert's square-to-quad map, inverted):
every raster layer, mask, alpha channel and the Quick Mask, one undo step.
The Background stays opaque over the background colour; type, shape, fill
and smart object layers are rasterized first; vector geometry follows the
nearest affine map. Non-convex, self-crossing, counter-clockwise or
degenerate quads are refused with an error.
algo: warp_surface_clipped bounds the per-tile warp by the new canvas even
when a layer reaches past the map's horizon; convex_quad, quad_size,
quad_to_rect.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
216 lines
14 KiB
Markdown
216 lines
14 KiB
Markdown
# Where PhotoCraft falls short of Photoshop
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> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-10 · **Change:** major (first version: every known shortfall ranked, from the 2026-10-10 re-measure) · **Target:** Adobe Photoshop 2026
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Every known shortfall against Photoshop 2026 (27.11.0), one entry each, ranked by user impact
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on the way to beta. This is the work list agents pick from: take the highest-ranked entry that
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nobody is working on, and when you close part of one, update its evidence and estimate here and
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the matching parity doc. Numbers come from [`target-app-parity.md`](target-app-parity.md);
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checklist ids (`TOOL-…`, `FILE-…`, `UI-…`) are rows in [`scorecard.md`](scorecard.md); `#n` are
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GitHub issues.
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No gap blocks alpha: the [alpha gate](roadmap.md#alpha-gate) passes. "Blocks beta" marks what
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stands between alpha and beta.
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Hours are Opus 5.5 agent-hours, one agent working sequentially, including tests. **Human** marks
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what an agent can't finish alone.
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## Summary
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| # | Gap | Kind | Impact | Estimate | Parity doc |
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|---|---|---|---|---:|---|
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| G1 | PSD fidelity and Photoshop acceptance | file format | blocks beta | 150–250 h | [file-format-parity](file-format-parity.md) |
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| G2 | Interactive performance | performance | blocks beta | 200–350 h | [scorecard](scorecard.md#performance) |
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| G3 | User-reported bug backlog | stability, UI | blocks beta | 250–400 h | [target-app-parity](target-app-parity.md) |
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| G4 | Brush feel | UI / painting | high | 100–180 h | [brush-parity](brush-parity.md) |
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| G5 | Transform, handles and modifiers | UI | high | 60–110 h | [ui-parity](ui-parity.md) |
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| G6 | Missing tools (12) | features | high | 60–100 h | [ui-parity](ui-parity.md#tools) |
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| G7 | Workspaces shown as parameter dialogs | features | high | 80–140 h | [target-app-parity](target-app-parity.md#feature-areas) |
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| G8 | Type depth | features | high | 120–200 h | [target-app-parity](target-app-parity.md#feature-areas) |
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| G9 | Panels, preferences and workspace | UI | medium-high | 150–250 h | [ui-parity](ui-parity.md#panels-and-workspace) |
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| G10 | Missing and partial file formats | file format | medium | 120–220 h | [file-format-parity](file-format-parity.md) |
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| G11 | Actions and scripting | ecosystem | medium | 120–200 h | [target-app-parity](target-app-parity.md) |
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| G12 | Pen tablets and display hardware | hardware | medium | 80–150 h | [hardware-parity](hardware-parity.md) |
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| G13 | Languages: Hindi, Arabic, Vietnamese, RTL, engine messages | localization | medium | 80–140 h + human | [localization-parity](localization-parity.md) |
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| G14 | Camera Raw depth | features, formats | medium | 120–200 h | [file-format-parity](file-format-parity.md#camera-raw) |
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| G15 | AI and generative features | AI | medium (high for some users) | 300–600 h + human | [target-app-parity](target-app-parity.md) |
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| G16 | Plug-in compatibility (.8BF, UXP) | ecosystem | medium | 250–450 h + human | [target-app-parity](target-app-parity.md) |
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| G17 | Platforms and distribution | platforms | low-medium | 30–60 h + human | [scorecard](scorecard.md#distribution) |
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## Feature gaps
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### G1. PSD fidelity and Photoshop acceptance
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- **Missing:** PSDs we write are not always accepted by Photoshop, and Photoshop-authored files
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don't always render as Photoshop renders them.
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- **Evidence:** corpus floors (`crates/io/tests/corpus.rs`, scorecard): Photoshop-authored
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oracles 133/256 (52%), io corpus 146/170 (86%), psd-tools 236/309 (76%); round trips ~100%
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within the corpus. Smart-filter re-render matches 5/30. User reports: a PSD with text layers
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re-saved unmodified would not reopen (#2374, closed 2026-10-10), Photoshop 26.6 cannot reopen our files (#1281), "PSD not
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opening in Photoshop" (#2469), a CS2-era smart object unavailable (#2465), PSB smart object
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blank (#1764), perspective placed layers flattened (#579), PSB > 4 GB fails on Windows (#375).
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No test opens our exports in a third-party editor (FILE-216-4).
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- **Impact:** PSD is the format professionals exchange. Beta requires it to be reliable.
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- **Estimate:** 150–250 h. **Human:** opening exports in Photoshop on the owner's Mac (or a
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scripted check there) is the only real oracle.
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### G6. Missing tools
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- **Missing (7 of 68):** Frame, Color Sampler (#1046), Color Replacement (engine command exists),
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Art History Brush, Add Anchor Point, Delete Anchor Point, Convert Point (only as Pen + ⌥).
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Freeform Pen and Curvature Pen landed (#1054); Horizontal and Vertical Type Mask landed (#1055,
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`type.createSelection`); Perspective Crop landed (#1043, `image.perspectiveCrop`).
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- **Evidence:** `Tool` enum (`crates/ui-egui/src/state.rs`) against the 67 `<tool>` entries of
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Photoshop's `Default Keyboard Shortcuts.kys` plus Remove, Triangle and Curvature Pen.
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- **Impact:** users look for them by name and shortcut; several are daily tools for designers.
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- **Estimate:** 60–100 h (2–9 h each, per the calibration).
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### G7. Workspaces shown as parameter dialogs
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- **Missing:** Select and Mask workspace with view modes, Refine Edge brush and outputs
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(TOOL-214-1, Refine Hair #2671); Content-Aware Fill workspace with a paintable sampling area
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(TOOL-214-15); Vanishing Point plane editor (TOOL-214-14); Content-Aware Scale through the
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transform box (TOOL-214-7); Puppet Warp mesh following the outline (TOOL-214-6); Content-Aware
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Move's Transform On Drop (TOOL-213-4).
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- **Evidence:** scorecard rows above, all partial or missing.
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- **Impact:** these are the tools retouchers and compositors use daily; a slider dialog is not a
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substitute.
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- **Estimate:** 80–140 h.
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### G8. Type depth
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- **Missing:** type on a path (TYPE-218-1), paragraph direction UI (TYPE-218-2), complex-script
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fallback fonts and golden tests (TYPE-218-3), variable-font axes (TYPE-218-4), OpenType panel
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UI (TYPE-218-5), manual and optical kerning with PSD round trip (TYPE-218-6, #206), live Warp
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Text preview (TYPE-218-7, #2689), triple/quadruple click (TYPE-218-8), "rasterize and continue"
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for distort/perspective on type (TYPE-218-9), text free transform (#2630).
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- **Evidence:** scorecard Type: 0 done, 3 partial, 6 missing. The Type tool froze the app for
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60 s on one macOS machine (#2518).
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- **Estimate:** 120–200 h.
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### G11. Actions and scripting
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- **Missing:** document-independent action recording (AUTO-219-1), a full Actions panel with
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step toggles and .atn import (AUTO-219-2), replay tests (AUTO-219-4), Batch recursion and
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naming (AUTO-219-5), ExtendScript/UXP compatibility.
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- **Ahead of Photoshop:** CLI, MCP and the JSON control channel drive every command.
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- **Estimate:** 120–200 h. **Human:** whether to support a JavaScript scripting dialect at all
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(AGENTS.md forbids JS in the app).
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### G14. Camera Raw depth
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- **Missing:** CR3 (detected, unsupported), compressed RAF, lossy DNG (FILE-215-11), .xmp
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sidecars, masking and calibration in the Camera Raw dialog, per-camera colour for non-DNG
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cameras, lens profiles.
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- **Evidence:** `crates/raw/src/lib.rs:219` (CR3), scorecard FILE-215-11/12, #50.
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- **Estimate:** 120–200 h.
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### G15. AI and generative features
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- **Missing:** Generative Fill and Expand, Generative Upscale, Neural Filters, Sky Replacement,
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Super Zoom, ML Select Subject/Sky. There is no ML runtime (AUTO-219-7). Classical substitutes
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exist (GrabCut/max-flow selection, Remove tool by non-local patch completion).
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- **Evidence:** Photoshop's `Required/UXP` ships the Neural Filters gallery and its `.kys` has
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a Neural Filters taskspace; users ask for local models (#2313, #1996, #2682).
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- **Estimate:** 300–600 h. **Human:** owner decision #41 (model licences, local vs remote).
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### G16. Plug-in compatibility
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- **Missing:** hosting Photoshop .8BF filters (#2647), UXP panels, CEP. PhotoCraft has its own
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sandboxed WebAssembly plug-in ABI v1 (`docs/plugins.md`), but ABI v2 (panels, progress, other
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layers) is missing (AUTO-219-6).
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- **Estimate:** 250–450 h. **Human:** .8BF needs native code under the isolated-`unsafe` rule.
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## UI / UX gaps
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### G3. User-reported bug backlog
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- **Missing:** fixes for 579 open issues (2026-10-10), filed mostly by 0.5/0.6 users. By title:
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~150 UI/panels/menus/shortcuts, 94 file/format, 87 layers, 54 painting, 54 selection,
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46 type, 41 performance, 34 transform/move, 25 Linux/Wayland, 24 Windows, 20 macOS.
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- **Impact:** each is a place where a Photoshop user hits something different from what they
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expect; together they are why ready-for-real-work is ~45% while breadth is ~76%.
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- **Estimate:** 250–400 h (many overlap with other gaps; count each fix once).
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### G4. Brush feel
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- **Missing:** lag with big brushes (#2619, #1994) and under the cursor (#2566, #1343); jumpy
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pressure on Windows (#2046) and tap sensitivity (#1933); stair-stepped line weights (#1776),
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interpolation and smoothing problems (#2138), edge falloff (#2149), pixelated cursor vs
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Photoshop (#1433), brush rotation not driven by pen rotation (#1301); live preview only for
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Brush and Eraser (TOOL-213-7); no image file as a brush tip (TOOL-213-12); per-control pressure
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curves (TOOL-213-11); 4 of Photoshop's symmetry modes.
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- **Detail:** [`brush-parity.md`](brush-parity.md).
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- **Estimate:** 100–180 h. **Human:** checking feel on real tablets.
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### G5. Transform, handles and modifiers
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- **Missing:** right-click menu during Free Transform (TOOL-214-5); commit/cancel buttons in the
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options bar (#2442); H/V skew fields and the full interpolation list; transform keeps layer
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order and blend mode in its preview (#2439); Hand tool interrupting a transform (#2302);
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blend mode/opacity edits during a transform (#1384); locked layers refused before the drag
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(#2585); ⌘-drag temporary Move without box or snapping (#2681), Auto-Select box follows the
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previous layer (#2666); ⌘-arrow layer nudge (#2474); path-point nudge; polygonal lasso Shift
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angles (#2352); autoscroll at the edge while selecting (#2231); hold-a-key spring-loaded tools
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(#2672); double-click Zoom tool to 100% (#2508); wheel and pinch behaviour (#2485, #2463,
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#1989); toolbar press-and-hold flyouts (#2301); tool-key memory in a group (#2608).
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- **Detail:** [`ui-parity.md`](ui-parity.md).
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- **Estimate:** 60–110 h.
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### G9. Panels, preferences and workspace
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- **Missing:** 46 of 149 preferences do nothing (scorecard prefs audit); panel groups can't
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float or tear off into OS windows (UI-217-5, #1828, #1213, #2305); Color panel lacks wheel and
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slider modes (UI-217-17, #2569); UI scale presets (UI-217-9, #2492); more themes (UI-217-11,
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#2661); Stamp Visible (UI-217-22); layer clipboard
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(UI-217-23, #2670); tool-specific context menus beyond brushes, selections and Pen
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([context-menu-parity.md](context-menu-parity.md)); Libraries, Comments, Contextual Task Bar
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panels.
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- **Estimate:** 150–250 h.
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### G2. Interactive performance
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- **Missing:** 22 of 25 budgeted scenarios are over budget (baseline 2026-10-05, a heavily
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loaded machine): layer move with styles 321 ms p50 against 25 ms, opacity change 276 ms
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against 20 ms, paste 12 MP 1.2 s against 100 ms, layer move on 15000×10000 16-bit 2.7 s,
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Content-Aware Scale 24 MP 954 s against 3 s, Select Subject 559 ms against 100 ms; the
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150-layer nudge crashes the GPU compositor (P12); a 50 MP PSB with feathered masks redraws in
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~10 s (#2377); menus slow with thousands of layers (#2460); old machines lag (#2687).
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- **Estimate:** 200–350 h. Serial in places (compositor architecture).
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## File-format gaps
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### G10. Missing and partial file formats
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- **Missing:** JPEG Options dialog (FILE-215-19), Photoshop PDF read and write and multi-page PDF
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(FILE-215-10, #2541), AVIF read (#463) and default-build AVIF write, JPEG XL, JPEG 2000 (#1047),
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DPX/Cineon (#1049), DICOM, EPS/DCS, PCX, Pixar, IFF, WBMP, MPO/JPS, PICT, Scitex CT, Photoshop
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Raw; layered TIFF extra alpha channels (FILE-215-7); spot plates (FILE-215-17); .atn, .asl,
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.shc, .csh presets (FILE-215-15); TGA/PNG alpha channels on open (#2225); C2PA (#1050).
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- **Detail:** [`file-format-parity.md`](file-format-parity.md).
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- **Estimate:** 120–220 h.
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## Hardware gaps
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### G12. Pen tablets and display hardware
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- **Missing:** tilt and rotation on Windows (pressure only, via WM_POINTER; no WinTab); native
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Wayland tablet-v2 (#79; the pen does not click on GNOME 50, #2622, KDE #2297); eraser end on
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flipped Wacom pens (#2285); HDR/EDR output (Photoshop has "Precise Color Management for HDR
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Display"); monitor profile detection off macOS and live profile changes; Touch Bar (macOS
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Intel only, low value); 3D mice.
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- **Detail:** [`hardware-parity.md`](hardware-parity.md).
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- **Estimate:** 80–150 h. **Human:** tablets and HDR displays to test on.
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## Localization gaps
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### G13. Hindi, Arabic, Vietnamese, RTL and engine messages
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- **Missing:** catalogs for Hindi, Arabic and Vietnamese (3 of the 12 key languages); right-to-
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left UI layout; Devanagari/Thai/Khmer fallback fonts; engine error and status messages in
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English in every language; browser-locale detection and CJK fonts on the web; Japanese IME on
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Windows (#590); installed Japanese fonts missing from the font list (#2330); Arabic layer names
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as tofu (#1408, #1693).
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- **Detail:** [`localization-parity.md`](localization-parity.md).
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- **Estimate:** 80–140 h. **Human:** native-speaker review of every catalog (none is recorded).
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## Platform gaps
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### G17. Platforms and distribution
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- **Missing:** Windows code signing (material not obtained), Windows ARM64 (DIST-220-2), in-app
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update check (DIST-220-1, #2650, #2375), in-app bug report (DIST-220-3), Flathub (#173),
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starting without a GPU adapter (#2519, #2412), Windows 7 (#2310, out of scope), Intel Macs with
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OpenCore (#1859).
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- **Estimate:** 30–60 h. **Human:** signing certificates.
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## Revision history
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| Date | Change | Summary |
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| 2026-10-10 | minor | Checked against the alpha gate (no alpha blockers); #2374 marked closed |
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| 2026-10-10 | major | First version, from the full re-measure against Photoshop 2026 27.11.0 and the open issues |
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