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vectorcraft/docs/effects-parity.md
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bflatasticandClaude Opus 5.5 59c890df9e Part of gap 2: Effect › Brush Strokes (Accented Edges, Angled Strokes, Crosshatch, Dark Strokes, Ink Outlines, Spatter, Sprayed Strokes, Sumi-e)
Eight raster effects on the pixel-filter pipeline
(vectorcraft_effects::pixel::brushstrokes), under a new Effect › Brush
Strokes submenu between Blur and Distort in the Raster Effects section:

- Accented Edges (edgeWidth pt 1..14, default 2; edgeBrightness 0..50,
  38; smoothness 1..15, 5): the edges of the softened object painted
  towards white chalk at high brightness or black ink at low brightness;
  Smoothness also leaves the faint edges out. The shape stays as it was.
- Angled Strokes (directionBalance 0..100, 50; strokeLength pt 3..50, 15;
  sharpness 0..10, 3): light areas in right diagonal strokes, dark areas
  in left diagonal ones; 0 makes every stroke a left diagonal, 100 every
  stroke a right diagonal. Sharpness brings detail and bristles back.
- Crosshatch (strokeLength pt 3..50, 9; sharpness 0..20, 6; strength
  1..3, 1): the detail kept under pencil hatching along both diagonals,
  Strength passes of it, the edges roughened.
- Dark Strokes (balance 0..10, 5; blackIntensity 0..10, 6;
  whiteIntensity 0..10, 2): short strokes towards black in the dark
  areas, long strokes towards white in the light areas.
- Ink Outlines (strokeLength pt 1..50, 4; darkIntensity 0..50, 20;
  lightIntensity 0..50, 10): black outlines over the edges, ink hatching
  in the shadows, shadows darkened and highlights lightened.
- Spatter (sprayRadius pt 0..25, 10; smoothness 1..15, 5): each pixel
  shifted by noise up to 0.4 x the radius; Smoothness makes the grains
  larger and smoother.
- Sprayed Strokes (strokeLength pt 0..20, 12; sprayRadius pt 0..25, 7;
  strokeDirection Right Diagonal, Horizontal, Left Diagonal or Vertical):
  strokes along the direction, scattered by up to 0.3 x the radius.
- Sumi-e (strokeWidth pt 3..15, 10; strokePressure 0..15, 2; contrast
  0..40, 16): wet strokes, ink bleeding from the darks along paper
  fibres, more ink with pressure and an S-curve contrast for rich blacks.
  It works in value only: hues and saturation stay, and so does the
  object's shape (no fringe in the transparency).

A stroke averages the colour along a segment through the pixel (16
samples at most, the art softened first when they lie more than a pixel
apart); strokes lie in rows around the object's centre, each row
starting at random and each stroke shifted along itself, with streaked
noise for the bristles. Everything is in document space, so the effects
look the same at any zoom or resolution, move with the object and draw
the same every time; outsets and reaches are exact. On a 2000 x 2000
raster in release the slowest settings take 0.3-2.0 s (Crosshatch at
50 pt with 3 passes the most).

Shared helpers instead of copies: edges::sobel (Glowing Edges now uses
it, unchanged), distort::displace and texture::Tones are pub(super).

Catalogue rows with parameter docs, menu entries, Sprayed Strokes'
direction dropdown, translations (de, es, fr, it, ja, ru, uk, zh-hans,
zh-hant; menu labels in cs and pt-br), tests (parameters and clamping,
outsets and reaches, each filter and option showing, chalk and ink on
the edges only, shadows and rich blacks, Sumi-e keeping the shape and
hues, hatching keeping the tone, strokes smearing along their direction,
Spatter's radius, resolution and move invariance, canvas, multithreaded,
PDF and SVG, the command sweep with junk parameters, the menu) and
ROADMAP.

Behaviour from public documentation only:
https://helpx.adobe.com/photoshop-elements/using/brush-stroke-filters.html
https://www.computerhope.com/jargon/p/photoshop-sprayed-strokes.htm

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-11 01:19:26 +07:00

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# Effects parity
> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-10 · **Change:** major (first checklist, counted from the effects catalogue) · **Target:** Adobe Illustrator 2026 (30.x)
Every entry of Illustrator's Effect menu, by its public feature name, against VectorCraft's effects catalogue
(`effect_catalog()` in `crates/effects/src/lib.rs`) and the Effect menu built from it
(`crates/ui-egui/src/menus.rs`). Counts are **measured** from the catalogue; "depth" notes are estimated.
Part of [target-app-parity.md](target-app-parity.md); open work is in [gaps.md](gaps.md).
## Summary
| Group | Illustrator | VectorCraft | % | Remaining (h) |
|---|---:|---:|---:|---:|
| Illustrator effects (vector and stylize) | 50 | 44 | 88% | 6–10 |
| Photoshop effects (raster, Effect Gallery) | 57 | 28 | 49% | 24–40 |
| 3D and Materials | 4 (+3 Classic) | 1 (initial Revolve) | ~8% | 45–75 |
| Beyond Illustrator: Effect › Color Adjustments (6), effect plug-ins (WebAssembly) | — | 6 + plug-ins | — | — |
## Illustrator effects
| Submenu | Items | Ours | Missing |
|---|---|---:|---|
| Convert to Shape | Rectangle, Rounded Rectangle, Ellipse | 3/3 | — |
| Crop Marks | Crop Marks | 1/1 | — |
| Distort & Transform | Free Distort, Pucker & Bloat, Roughen, Transform, Tweak, Twist, Zig Zag | 7/7 | Transform's Transform Objects/Patterns and Scale Strokes & Effects options, invisible Reflect checkboxes (#885) |
| Path | Offset Path, Outline Object, Outline Stroke | 2/3 | Outline Object |
| Pathfinder | Add, Intersect, Exclude, Subtract, Minus Back, Divide, Trim, Merge, Crop, Outline, Hard Mix, Soft Mix, Trap | 10/13 | Hard Mix, Soft Mix, Trap |
| Rasterize | Rasterize… (as a live effect) | 0/1 | the live effect (Object › Rasterize exists) |
| Stylize | Drop Shadow, Feather, Inner Glow, Outer Glow, Round Corners, Scribble | 6/6 | — |
| SVG Filters | Apply SVG Filter… and the filter list | 0/1 | the whole submenu (SVG filters on import round-trip already) |
| Warp | Arc, Arc Lower, Arc Upper, Arch, Bulge, Shell Lower, Shell Upper, Flag, Wave, Fish, Rise, Fisheye, Inflate, Squeeze, Twist | 15/15 | warp point editing in envelopes |
Document Raster Effects Settings exists.
## Photoshop effects
| Submenu | Items | Ours | Missing |
|---|---|---:|---|
| Artistic | Colored Pencil, Cutout, Dry Brush, Film Grain, Fresco, Neon Glow, Paint Daubs, Palette Knife, Plastic Wrap, Poster Edges, Rough Pastels, Smudge Stick, Sponge, Underpainting, Watercolor | 0/15 | all |
| Blur | Gaussian Blur, Radial Blur, Smart Blur | 3/3 | Smart Blur's Edge Only and Overlay Edge modes |
| Brush Strokes | Accented Edges, Angled Strokes, Crosshatch, Dark Strokes, Ink Outlines, Spatter, Sprayed Strokes, Sumi-e | 8/8 | — |
| Distort | Diffuse Glow, Glass, Ocean Ripple | 3/3 | Glass's Load Texture |
| Pixelate | Color Halftone, Crystallize, Mezzotint, Pointillize | 4/4 | — |
| Sharpen | Unsharp Mask | 1/1 | — |
| Sketch | Bas Relief, Chalk & Charcoal, Charcoal, Chrome, Conté Crayon, Graphic Pen, Halftone Pattern, Note Paper, Photocopy, Plaster, Reticulation, Stamp, Torn Edges, Water Paper | 0/14 | all |
| Stylize | Glowing Edges | 1/1 | — |
| Texture | Craquelure, Grain, Mosaic Tiles, Patchwork, Stained Glass, Texturizer | 6/6 | Texturizer's Load Texture |
| Video | De-Interlace, NTSC Colors | 2/2 | — |
| Effect Gallery | the combined browser and stack dialog | 0/1 | all |
The pixel-filter pipeline (`vectorcraft_effects::pixel`) is in place: each new filter is one function, a
catalogue row, a menu entry and translations. Measured throughput: 0.7–1.2 agent hours per filter
(see [calibration](target-app-parity.md#calibration)), so the 29 missing filters are ~20–35 h and the Effect
Gallery dialog another 4–6 h. These parallelize well across agents.
## 3D and Materials
| Item | Ours |
|---|---|
| Revolve | initial: live, editable profile, rotation and light gizmos, flat shading, SVG/PDF output, Expand Appearance ([revolve.md](revolve.md), #846) |
| Extrude & Bevel, Inflate, Rotate | none (menu stubs) |
| Materials panel, lighting, ray-traced render | none |
| 3D (Classic): Extrude & Bevel, Revolve, Rotate | none |
| Turntable (30.0 beta) | none |
| Export 3D objects (OBJ, USDA, glTF) | none |
The `three-d` crate (depends only on `geom`) builds, rotates, projects, shades and depth-sorts the surfaces;
the effects crate turns them into art. What's left (Extrude & Bevel, Inflate, Rotate, caps, materials, ray-traced
rendering, Turntable, 3D export) is 45–75 h, still the largest single gap.
## Revision history
| Date | Change | Summary |
|---|---|---|
| 2026-10-11 | minor | Brush Strokes landed (8 filters): 28/57 Photoshop effects |
| 2026-10-10 | minor | Initial Revolve landed (#846) |
| 2026-10-10 | major | First checklist, counted from the effects catalogue (20/57 Photoshop effects, 44/50 Illustrator effects) |