Effects: Sketch › Bas Relief, Charcoal, Photocopy and Stamp (#2527)

Squashed from #2533 onto #2525 (Smudge Stick, Sponge, Watercolor): both sets in PIXEL_EFFECTS (45), the catalogs and the docs, whose counts now read 45/57.
2026-10-24 09:46:59 -06:00 · 2026-10-20 06:43:50 +07:00
parent d14b67e015
commit f664564e97
40 changed files with 801 additions and 33 deletions
@@ -246,7 +246,7 @@ The scores are self-assessed from our code against public documentation;
 - reliable exchange of .ai files (layer structure in real files; proprietary editing data isn't written);
 - an interaction-fidelity pass covering every tool's modifiers and small behaviours;
 - 3D and Materials beyond the initial live Revolve (Extrude & Bevel, Inflate, Rotate, materials);
- about half of the raster effects (21 of 57 still missing; Cutout, Film Grain, Neon Glow, Poster Edges, Smudge Stick, Sponge and Watercolor are available under Artistic, Halftone Pattern under Sketch) and the Effect Gallery;
+- most of the raster effects (12 of 57 still missing; Cutout, Film Grain, Neon Glow, Plastic Wrap, Poster Edges, Smudge Stick, Sponge and Watercolor are available under Artistic, Bas Relief, Chalk & Charcoal, Charcoal, Chrome, Graphic Pen, Halftone Pattern, Photocopy, Plaster, Reticulation and Stamp under Sketch) and the Effect Gallery;
 - CJK composition for vertical type (vertical type itself has initial support, with a Japanese interface);
 - scripting, and the rest of Variables (image and graph kinds, dataset import);
 - generative AI features.
@@ -29,7 +29,7 @@ blocking it ([Alpha gate](docs/roadmap.md#alpha-gate)).

 | | Value | Kind |
 |---|---|---|
-| **Feature breadth** (Illustrator's menu items, tools, effects, formats exist) | **~88%** | measured in part: menu items 348/375 wired (92.8%), tools 89/92, Illustrator effects 46/50, Photoshop effects 42/57, 3D 4/4 (initial types, no materials) |
+| **Feature breadth** (Illustrator's menu items, tools, effects, formats exist) | **~88%** | measured in part: menu items 348/375 wired (92.8%), tools 89/92, Illustrator effects 46/50, Photoshop effects 45/57, 3D 4/4 (initial types, no materials) |
 | **Feature depth** (weighted by use, scored by behaviour) | **~75%** | estimated |
 | **To beta** | **~170–270 h** one agent · ~50–80 h with 4–6 agents | estimated |
 | **To full parity** | **~360–590 h** one agent · ~95–165 h with 4–6 agents | estimated |
@@ -76,7 +76,7 @@ The dimension hours overlap (feature rows hold some UI, format and AI work), so
 | Strokes, brushes, width profiles | 88% | 8–15 |
 | Appearance, transparency, graphic styles, masks | 97% | 1–2 |
 | Live vector effects | 85% | 6–10 |
-| Raster effects (Effect Gallery) — [effects-parity.md](docs/effects-parity.md) | 49% | 14–24 |
+| Raster effects (Effect Gallery) — [effects-parity.md](docs/effects-parity.md) | 79% | 8–14 |
 | 3D and Materials | ~25% | 30–55 |
 | Type core — [type-parity.md](docs/type-parity.md) | 80% | 14–19 |
 | Type advanced (CJK, spelling, Touch Type) | 50% | 20–28 |
@@ -123,7 +123,7 @@ Ranked; detail in [docs/roadmap.md](docs/roadmap.md) and [docs/gaps.md](docs/gap
 2. **`.ai` files from real users** (G9): layer structure, guides, speed: 10–20 h.
 3. **Launch and stability on real machines** (G10): 20–35 h.
 4. **Core-tool correctness** (G11: Shape Builder regions, Asset Export borders): 8–15 h.
-5. **Raster effects** (G2) alongside: 15 filters (7 Artistic, 8 Sketch) and the Effect Gallery, 14–24 h.
+5. **Raster effects** (G2) alongside: the 12 remaining filters (7 Artistic, 4 Sketch, 1 more) and the Effect Gallery, 8–14 h.
 6. **Then:** type core and advanced type (G4), the Illustrator 2026 additions (G13), 3D (G3).

 ## Progress log
@@ -496,6 +496,13 @@ pub fn effect_catalog() -> Vec<EffectInfo> {
            "{amount: % 1..500 (50), radius: pt 0.1..250 (1; σ of the blur edges are found against), threshold: levels 0..255 (0; smaller differences are left alone)}",
            json!({"amount": 50.0, "radius": 1.0, "threshold": 0.0}),
        ),
+        r(
+            "sketch.basRelief",
+            "Bas Relief…",
+            SKETCH,
+            "{detail: 1..15 (13; the larger, the finer the features that stay), smoothness: 1..15 (3; rounds the carving), lightDirection: \"bottom\"|\"bottomLeft\"|\"left\"|\"topLeft\"|\"top\"|\"topRight\"|\"right\"|\"bottomRight\" (\"bottom\"; where the light comes from)} carves the object in low relief in black and white: surfaces facing the light turn white, those turned away black, flat areas grey. Coverage is kept. Original visual approximation; chosen VectorCraft defaults.",
+            json!({"detail": 13.0, "smoothness": 3.0, "lightDirection": "bottom"}),
+        ),
        r(
            "sketch.chalkCharcoal",
            "Chalk & Charcoal…",
@@ -503,6 +510,13 @@ pub fn effect_catalog() -> Vec<EffectInfo> {
            "{chalkArea: 0..20 (6; chalk in light areas), charcoalArea: 0..20 (6; charcoal in dark areas), strokePressure: 0..5 (2)} redraws the object with chalk highlights and charcoal strokes on white paper, keeping its coverage. Original visual approximation from public documentation; slider ranges and defaults are VectorCraft choices, not verified proprietary values.",
            json!({"chalkArea": 6.0, "charcoalArea": 6.0, "strokePressure": 2.0}),
        ),
+        r(
+            "sketch.charcoal",
+            "Charcoal…",
+            SKETCH,
+            "{thickness: 1..7 (1; width of the bold edges and of the strokes' spacing), detail: 0..5 (1; the larger, the finer the edges), lightDarkBalance: 0..100 (50; how far into the lights the charcoal reaches)} redraws the object in black charcoal on white paper: bold edges and diagonal strokes over the midtones. Coverage is kept. Original visual approximation; chosen VectorCraft defaults.",
+            json!({"thickness": 1.0, "detail": 1.0, "lightDarkBalance": 50.0}),
+        ),
        r(
            "sketch.chrome",
            "Chrome…",
@@ -524,6 +538,13 @@ pub fn effect_catalog() -> Vec<EffectInfo> {
            "{size: pt 1..12 (1; how far apart the screen's dots, rings or lines are), contrast: 0..50 (5; 50 draws pure black and white), patternType: \"circle\"|\"dot\"|\"line\" (\"dot\"; rings round the object's centre, dots on a square grid, horizontal lines)} redraws the object in black ink on white paper through a halftone screen whose ink covers as much as the colour is dark, keeping its coverage. Original visual approximation; chosen VectorCraft defaults.",
            json!({"size": 1.0, "contrast": 5.0, "patternType": "dot"}),
        ),
+        r(
+            "sketch.photocopy",
+            "Photocopy…",
+            SKETCH,
+            "{detail: 1..24 (7; the larger, the finer the features that copy), darkness: 1..50 (25; the larger, the more of the dark copies)} copies the object in black on white: large dark areas copy only around their edges and midtones go to black or white. Coverage is kept. Original visual approximation; chosen VectorCraft defaults.",
+            json!({"detail": 7.0, "darkness": 25.0}),
+        ),
        r(
            "sketch.plaster",
            "Plaster…",
@@ -538,6 +559,13 @@ pub fn effect_catalog() -> Vec<EffectInfo> {
            "{density: 0..50 (12; finer grain at higher values), foregroundLevel: 0..50 (6; pulls shadows toward black ink), backgroundLevel: 0..50 (6; pulls highlights toward white paper)} redraws the object in black ink on white paper through a high-contrast film-grain screen, keeping its coverage. Original visual approximation; chosen VectorCraft defaults.",
            json!({"density": 12.0, "foregroundLevel": 6.0, "backgroundLevel": 6.0}),
        ),
+        r(
+            "sketch.stamp",
+            "Stamp…",
+            SKETCH,
+            "{lightDarkBalance: 0..50 (25; the larger, the more of the object prints black), smoothness: 1..50 (5; rounds the shapes)} simplifies the object to solid black and white, as a rubber stamp would print it. Coverage is kept. Original visual approximation; chosen VectorCraft defaults.",
+            json!({"lightDarkBalance": 25.0, "smoothness": 5.0}),
+        ),
        r(
            "stylize.glowingEdges",
            "Glowing Edges…",
@@ -25,6 +25,7 @@ mod paint;
 mod pixelate;
 mod sharpen;
 mod sketch;
+mod sketch_ink;
 mod texture;
 mod video;

@@ -42,7 +43,7 @@ pub use sketch::{HALFTONE_TYPES, HalftonePattern};
 pub use texture::{GRAIN_TYPES, Grain, LIGHT_DIRECTIONS, Light, TEXTURES, Texture};

 /// The Photoshop-style effect ids (all raster effects, see [`crate::is_raster`]).
-pub const PIXEL_EFFECTS: [&str; 41] = [
+pub const PIXEL_EFFECTS: [&str; 45] = [
    "artistic.cutout",
    "artistic.filmGrain",
    "artistic.neonGlow",
@@ -69,12 +70,16 @@ pub const PIXEL_EFFECTS: [&str; 41] = [
    "pixelate.mezzotint",
    "pixelate.pointillize",
    "sharpen.unsharpMask",
+    "sketch.basRelief",
    "sketch.chalkCharcoal",
+    "sketch.charcoal",
    "sketch.chrome",
    "sketch.graphicPen",
    "sketch.halftonePattern",
+    "sketch.photocopy",
    "sketch.plaster",
    "sketch.reticulation",
+    "sketch.stamp",
    "stylize.glowingEdges",
    "texture.craquelure",
    "texture.grain",
@@ -175,6 +180,18 @@ pub enum PixelFx {
    /// Sketch › Halftone Pattern: black ink on white paper through a `kind` screen of cells `size`
    /// (1..12) apart, its edges as hard as `contrast` (0..50) says.
    HalftonePattern { size: f64, contrast: f64, kind: HalftonePattern },
+    /// Sketch › Bas Relief: low relief lit from `light`, keeping the finer features as `detail`
+    /// (1..15) says and rounded by `smoothness` (1..15).
+    BasRelief { detail: f64, smoothness: f64, light: Light },
+    /// Sketch › Charcoal: bold edges `thickness` (1..7) wide, as fine as `detail` (0..5) says, and
+    /// diagonal strokes over the midtones; `balance` (0..100) sets how far into the lights it reaches.
+    Charcoal { thickness: f64, detail: f64, balance: f64 },
+    /// Sketch › Photocopy: black only where a pixel is darker than its surroundings, as fine as
+    /// `detail` (1..24) says, and as readily as `darkness` (1..50) says.
+    Photocopy { detail: f64, darkness: f64 },
+    /// Sketch › Stamp: solid black and white, printing black as much as `balance` (0..50) says,
+    /// its shapes rounded by `smoothness` (1..50).
+    Stamp { balance: f64, smoothness: f64 },
    /// Sketch › Plaster: relief plaster lit from `light`; dark areas raised, light recessed;
    /// `imageBalance` (1..50) shifts more of the image lower at higher values; `smoothness` (1..15)
    /// softens the relief.
@@ -387,6 +404,22 @@ pub(crate) fn parse(id: &str, p: &Value) -> Option<PixelFx> {
            contrast: num(p, "contrast", 5.0).clamp(0.0, 50.0),
            kind: HalftonePattern::parse(text(p, "patternType", "dot")),
        },
+        "sketch.basRelief" => PixelFx::BasRelief {
+            detail: num(p, "detail", 13.0).clamp(1.0, 15.0),
+            smoothness: num(p, "smoothness", 3.0).clamp(1.0, 15.0),
+            light: Light::parse(text(p, "lightDirection", "bottom")),
+        },
+        "sketch.charcoal" => PixelFx::Charcoal {
+            thickness: num(p, "thickness", 1.0).clamp(1.0, 7.0),
+            detail: num(p, "detail", 1.0).clamp(0.0, 5.0),
+            balance: num(p, "lightDarkBalance", 50.0).clamp(0.0, 100.0),
+        },
+        "sketch.photocopy" => {
+            PixelFx::Photocopy { detail: num(p, "detail", 7.0).clamp(1.0, 24.0), darkness: num(p, "darkness", 25.0).clamp(1.0, 50.0) }
+        }
+        "sketch.stamp" => {
+            PixelFx::Stamp { balance: num(p, "lightDarkBalance", 25.0).clamp(0.0, 50.0), smoothness: num(p, "smoothness", 5.0).clamp(1.0, 50.0) }
+        }
        "sketch.plaster" => PixelFx::Plaster {
            image_balance: num(p, "imageBalance", 20.0).clamp(1.0, 50.0),
            smoothness: num(p, "smoothness", 8.0).clamp(1.0, 15.0),
@@ -481,6 +514,7 @@ impl PixelFx {
            | PixelFx::HalftonePattern { .. }
            | PixelFx::Plaster { .. }
            | PixelFx::Reticulation { .. } => 0.0,
+            PixelFx::BasRelief { .. } | PixelFx::Charcoal { .. } | PixelFx::Photocopy { .. } | PixelFx::Stamp { .. } => 0.0,
            PixelFx::GlowingEdges { width, smoothness, .. } => width.max(smoothness * 3.0),
            // These three keep the object's coverage.
            PixelFx::SmudgeStick { .. } | PixelFx::Sponge { .. } | PixelFx::Watercolor { .. } => 0.0,
@@ -531,6 +565,10 @@ impl PixelFx {
            PixelFx::Glass { distortion, .. } => Some(distort::glass_shift(distortion)),
            PixelFx::OceanRipple { size, magnitude } => Some(distort::ripple_shift(size, magnitude)),
            PixelFx::UnsharpMask { radius, .. } => Some(3.0 * radius),
+            PixelFx::BasRelief { detail, smoothness, .. } => Some(sketch_ink::relief_reach(detail, smoothness)),
+            PixelFx::Charcoal { thickness, detail, .. } => Some(sketch_ink::charcoal_reach(thickness, detail)),
+            PixelFx::Photocopy { detail, .. } => Some(sketch_ink::copy_reach(detail)),
+            PixelFx::Stamp { smoothness, .. } => Some(sketch_ink::stamp_reach(smoothness)),
            PixelFx::GlowingEdges { width, smoothness, .. } => Some(width.max(smoothness * 3.0)),
            // The cells around the pixel's, and the cells around theirs.
            PixelFx::ColorHalftone { max_radius, .. } => Some(3.0 * std::f64::consts::SQRT_2 * max_radius),
@@ -601,6 +639,10 @@ impl PixelFx {
            PixelFx::Chrome { detail, smoothness } => sketch::chrome(px, w, h, space, detail, smoothness),
            PixelFx::GraphicPen { length, balance, direction } => brushstrokes::graphic_pen(px, w, h, space, length, balance, direction),
            PixelFx::HalftonePattern { size, contrast, kind } => sketch::halftone_pattern(px, w, h, space, size, contrast, kind),
+            PixelFx::BasRelief { detail, smoothness, light } => sketch_ink::bas_relief(px, w, h, space, detail, smoothness, light),
+            PixelFx::Charcoal { thickness, detail, balance } => sketch_ink::charcoal(px, w, h, space, thickness, detail, balance),
+            PixelFx::Photocopy { detail, darkness } => sketch_ink::photocopy(px, w, h, space, detail, darkness),
+            PixelFx::Stamp { balance, smoothness } => sketch_ink::stamp(px, w, h, space, balance, smoothness),
            PixelFx::Plaster { image_balance, smoothness, light } => sketch::plaster(px, w, h, space, image_balance, smoothness, light),
            PixelFx::Reticulation { density, foreground, background } => sketch::reticulation(px, w, h, space, density, foreground, background),
            PixelFx::GlowingEdges { width, brightness, smoothness } => edges::glow(px, w, h, to_px(width), brightness, to_px(smoothness)),
@@ -853,3 +895,5 @@ pub fn gaussian_rgba(data: &mut [u8], w: usize, h: usize, sigma: f64) {
 mod tests;
 #[cfg(test)]
 mod tests_paint;
+#[cfg(test)]
+mod tests_sketch;
@@ -0,0 +1,209 @@
+//! Effect › Sketch › Bas Relief, Charcoal, Photocopy and Stamp. Original filters built from public
+//! behaviour documentation: <https://helpx.adobe.com/illustrator/using/summary-effects.html> and
+//! <https://helpx.adobe.com/photoshop-elements/using/sketch-filters.html> (the Sketch effects
+//! redraw the object in the foreground and background colours, black on white here; Bas Relief
+//! carves low relief lit from a direction, Charcoal draws bold edges and sketches the midtones in
+//! diagonal strokes, Photocopy copies only the edges of large dark areas and takes the midtones to
+//! black or white, Stamp simplifies the image to solid black and white as a rubber stamp would).
+//! Visual approximations, not reproductions of a proprietary algorithm; the ranges and defaults
+//! are chosen for VectorCraft.
+//!
+//! All four keep the object's coverage, so they paint nothing outside it. Their sizes are in
+//! document points, whatever the raster's resolution.
+
+use std::f64::consts::FRAC_1_SQRT_2;
+
+use super::pixelate::{Place, cell, value_noise};
+use super::texture::{Light, Tones, premultiply};
+use super::{PixelSpace, blur_plane};
+
+const SALT_STROKES: u64 = 440;
+
+/// A pixel's size (points) at 72 ppi: how far the neighbours of a gradient add to a filter's reach.
+const MARGIN: f64 = 1.0;
+
+/// Redraw `p` as ink `ink` (0..1) of black on white paper, keeping its coverage.
+fn paint(p: &mut [u8; 4], ink: f64) {
+    let v = if ink.is_finite() { (1.0 - ink).clamp(0.0, 1.0) as f32 } else { 1.0 };
+    *p = premultiply([v; 3], f32::from(p[3]) / 255.0);
+}
+
+/// A smooth step from 0 at `t` ≤ 0 to 1 at `t` ≥ 1 (0 when `t` is not a number).
+fn ramp(t: f64) -> f64 {
+    let t = if t.is_finite() { t.clamp(0.0, 1.0) } else { 0.0 };
+    t * t * (3.0 - 2.0 * t)
+}
+
+/// The tone at (`x`, `y`) and its gradient per pixel, from central differences.
+fn gradient(tones: &Tones, x: usize, y: usize) -> (f64, f64, f64) {
+    let gx = 0.5 * (tones.get(x + 1, y) - tones.get(x.saturating_sub(1), y));
+    let gy = 0.5 * (tones.get(x, y + 1) - tones.get(x, y.saturating_sub(1)));
+    (tones.get(x, y), gx, gy)
+}
+
+/// The σ (points) Bas Relief softens the object by, for Detail `detail` (1..15) and Smoothness
+/// `smoothness` (1..15).
+fn relief_softness(detail: f64, smoothness: f64) -> f64 {
+    0.2 + 0.15 * smoothness.clamp(1.0, 15.0) + 0.1 * (15.0 - detail.clamp(1.0, 15.0))
+}
+
+/// How far (document units) Bas Relief reaches: the softened tones and their neighbours.
+pub(super) fn relief_reach(detail: f64, smoothness: f64) -> f64 {
+    3.0 * relief_softness(detail, smoothness) + MARGIN
+}
+
+/// Bas Relief: the object carved in low relief and lit from `light`. Surfaces facing the light turn
+/// white, those turned away black, flat areas grey with a hint of the object's own tones; `detail`
+/// (1..15) keeps finer features and `smoothness` (1..15) rounds the carving.
+pub(super) fn bas_relief(px: &mut [[u8; 4]], w: usize, h: usize, space: &PixelSpace, detail: f64, smoothness: f64, light: Light) {
+    if !(detail.is_finite() && smoothness.is_finite()) {
+        return;
+    }
+    let Some(place) = Place::new(space, w, h) else { return };
+    let sigma = relief_softness(detail, smoothness);
+    let tones = Tones::new(px, w, h, sigma / place.px);
+    let toward = light.toward();
+    place.each(px, |x, y, p| {
+        if p[3] == 0 {
+            return;
+        }
+        let (tone, slope) = tones.slope(x, y, &place);
+        // A step from black to white, softened by σ, rises 0.4 per σ at its steepest.
+        let lit = -slope.dot(toward) * sigma;
+        paint(p, 1.0 - (0.5 + 0.2 * (tone - 0.5) + 2.5 * lit));
+    });
+}
+
+/// The σ (points) Charcoal softens the object by to find its edges, for Detail `detail` (0..5).
+fn charcoal_softness(detail: f64) -> f64 {
+    0.25 + 0.25 * (5.0 - detail.clamp(0.0, 5.0)) + 0.25
+}
+
+/// The σ (points) that thickens Charcoal's edges, for Thickness `thickness` (1..7).
+fn charcoal_thickening(thickness: f64) -> f64 {
+    0.35 * thickness.clamp(1.0, 7.0)
+}
+
+/// The distance (points) between the strokes sketching Charcoal's midtones.
+fn charcoal_spacing(thickness: f64) -> f64 {
+    1.5 + 0.5 * thickness.clamp(1.0, 7.0)
+}
+
+/// How far (document units) Charcoal reaches: the edges, their thickening and the strokes' tones.
+pub(super) fn charcoal_reach(thickness: f64, detail: f64) -> f64 {
+    (3.0 * (charcoal_softness(detail) + charcoal_thickening(thickness)) + 2.0 * MARGIN).max(2.0 * charcoal_spacing(thickness) + MARGIN)
+}
+
+/// Charcoal: bold, `thickness` (1..7) wide edges, as fine as `detail` (0..5) says, and the
+/// midtones sketched in diagonal strokes; `balance` (0..100) sets how far into the lights the
+/// charcoal reaches (50 is even).
+pub(super) fn charcoal(px: &mut [[u8; 4]], w: usize, h: usize, space: &PixelSpace, thickness: f64, detail: f64, balance: f64) {
+    if !(thickness.is_finite() && detail.is_finite() && balance.is_finite()) {
+        return;
+    }
+    let Some(place) = Place::new(space, w, h) else { return };
+    let sigma = charcoal_softness(detail);
+    let spacing = charcoal_spacing(thickness);
+    let bias = (balance.clamp(0.0, 100.0) - 50.0) / 100.0 * 0.8;
+    // The edges: how much the softened tones change across σ, 1 for a step from black to white.
+    let edge_tones = Tones::new(px, w, h, sigma / place.px);
+    let mut edge: Vec<f32> = (0..w * h)
+        .map(|k| {
+            let (_, gx, gy) = gradient(&edge_tones, k % w, k / w);
+            let contrast = gx.hypot(gy) / place.px * sigma / 0.4;
+            let weakest = 0.35 - 0.2 * bias / 0.4;
+            ramp((contrast - weakest) / 0.3) as f32
+        })
+        .collect();
+    blur_plane(&mut edge, w, h, charcoal_thickening(thickness) / place.px);
+    // The strokes' tones are softer than the edges', so the strokes don't follow every speck.
+    let tones = Tones::new(px, w, h, 0.5 * spacing / place.px);
+    place.each(px, |x, y, p| {
+        if p[3] == 0 {
+            return;
+        }
+        let bold = edge.get(y * w + x).map_or(0.0, |e| ((f64::from(*e) - 0.3) / 0.3).clamp(0.0, 1.0));
+        let dark = 1.0 - tones.get(x, y);
+        let share = ((dark + bias - 0.2) / 0.6).clamp(0.0, 1.0);
+        let q = place.at(x, y);
+        // Across the strokes, which run rising to the right, and along them.
+        let (across, along) = ((q.x + q.y) * FRAC_1_SQRT_2 / spacing, (q.x - q.y) * FRAC_1_SQRT_2 / spacing);
+        let stroke = match (share > 0.0, cell(across)) {
+            (true, Some(line)) => {
+                let f = across - line as f64;
+                // Each stroke breaks and swells along its length.
+                let swell = (0.6 + 0.8 * value_noise(SALT_STROKES, along / 6.0, line as f64)).clamp(0.0, 1.2);
+                let reach = (share * swell).min(1.0);
+                let soft = 2.0 * place.px / spacing;
+                (((reach - (2.0 * f - 1.0).abs()) / soft + 0.5).clamp(0.0, 1.0)) * f64::from(reach > 0.0)
+            }
+            _ => 0.0,
+        };
+        paint(p, bold.max(stroke));
+    });
+}
+
+/// The σ (points) of Photocopy's narrow softening for Detail `detail` (1..24): the less detail,
+/// the wider.
+fn copy_softness(detail: f64) -> f64 {
+    0.15 * (25.0 - detail.clamp(1.0, 24.0))
+}
+
+/// How much wider Photocopy's second softening is than its first.
+const COPY_WIDER: f64 = 3.0;
+
+/// How far (document units) Photocopy reaches: the wide softening.
+pub(super) fn copy_reach(detail: f64) -> f64 {
+    3.0 * COPY_WIDER * copy_softness(detail) + MARGIN
+}
+
+/// Photocopy: black where a pixel is darker than its surroundings, white elsewhere. Large dark
+/// areas copy only around their edges and midtones go to black or white. `detail` (1..24) keeps
+/// finer features and `darkness` (1..50) copies more of the dark.
+pub(super) fn photocopy(px: &mut [[u8; 4]], w: usize, h: usize, space: &PixelSpace, detail: f64, darkness: f64) {
+    if !(detail.is_finite() && darkness.is_finite()) {
+        return;
+    }
+    let Some(place) = Place::new(space, w, h) else { return };
+    let sigma = copy_softness(detail) / place.px;
+    let narrow = Tones::new(px, w, h, sigma);
+    let wide = Tones::new(px, w, h, COPY_WIDER * sigma);
+    // How much darker than its surroundings a pixel must be to print.
+    let threshold = 0.02 + 0.10 * (1.0 - (darkness.clamp(1.0, 50.0) - 1.0) / 49.0);
+    let soft = 0.02;
+    place.each(px, |x, y, p| {
+        if p[3] == 0 {
+            return;
+        }
+        paint(p, ((wide.get(x, y) - narrow.get(x, y) - threshold) / soft + 0.5).clamp(0.0, 1.0));
+    });
+}
+
+/// The σ (points) Stamp softens the object by for Smoothness `smoothness` (1..50).
+fn stamp_softness(smoothness: f64) -> f64 {
+    0.1 * smoothness.clamp(1.0, 50.0)
+}
+
+/// How far (document units) Stamp reaches: the softened tones and their neighbours.
+pub(super) fn stamp_reach(smoothness: f64) -> f64 {
+    3.0 * stamp_softness(smoothness) + MARGIN
+}
+
+/// Stamp: the object as solid black and white, like a rubber stamp. `balance` (0..50) sets how much
+/// of the object prints black and `smoothness` (1..50) rounds the shapes.
+pub(super) fn stamp(px: &mut [[u8; 4]], w: usize, h: usize, space: &PixelSpace, balance: f64, smoothness: f64) {
+    if !(balance.is_finite() && smoothness.is_finite()) {
+        return;
+    }
+    let Some(place) = Place::new(space, w, h) else { return };
+    let tones = Tones::new(px, w, h, stamp_softness(smoothness) / place.px);
+    let threshold = 0.2 + 0.6 * balance.clamp(0.0, 50.0) / 50.0;
+    place.each(px, |x, y, p| {
+        if p[3] == 0 {
+            return;
+        }
+        let (tone, gx, gy) = gradient(&tones, x, y);
+        // A one pixel wide edge, whatever the softening.
+        paint(p, ((threshold - tone) / gx.hypot(gy).max(0.01) + 0.5).clamp(0.0, 1.0));
+    });
+}
@@ -0,0 +1,181 @@
+//! Sketch › Bas Relief, Charcoal, Photocopy and Stamp.
+
+use serde_json::json;
+use vectorcraft_doc::Effect;
+use vectorcraft_geom::{Affine, Point, Rect};
+
+use super::*;
+use crate::{RasterFx, raster_effects};
+
+/// A `w` × `h` raster whose pixels are document points (origin top-left), of an object that fills it.
+fn space(w: usize, h: usize) -> PixelSpace {
+    let (w, h) = (w as f64, h as f64);
+    PixelSpace {
+        to_doc: Affine::IDENTITY,
+        px: 1.0,
+        center: Point::new(w / 2.0, h / 2.0),
+        channels: Channels::Rgb,
+        line: 1.0,
+        extent: 0.5 * w.hypot(h),
+    }
+}
+
+fn image(w: usize, h: usize, f: impl Fn(usize, usize) -> [u8; 4]) -> Vec<u8> {
+    (0..h).flat_map(|y| (0..w).map(move |x| (x, y))).flat_map(|(x, y)| f(x, y)).collect()
+}
+
+fn fx(id: &str, p: serde_json::Value) -> PixelFx {
+    let e = Effect { id: id.into(), params: p, visible: true };
+    match raster_effects(&[e]).first() {
+        Some(RasterFx::Pixel(p)) => p.clone(),
+        other => panic!("{id}: {other:?}"),
+    }
+}
+
+fn run(id: &str, p: serde_json::Value, src: &[u8], w: usize, h: usize) -> Vec<u8> {
+    let mut out = src.to_vec();
+    fx(id, p).apply(&mut out, w, h, &space(w, h));
+    out
+}
+
+fn grey(v: u8) -> [u8; 4] {
+    [v, v, v, 255]
+}
+
+/// Channel 0 of pixel (`x`, `y`).
+fn at(d: &[u8], w: usize, x: usize, y: usize) -> u8 {
+    d[(y * w + x) * 4]
+}
+
+/// How many pixels of channel 0 are darker than 128.
+fn black(d: &[u8]) -> usize {
+    d.as_chunks::<4>().0.iter().filter(|p| p[0] < 128).count()
+}
+
+/// No panic and the coverage kept on tiny, huge and non-finite spaces and parameters.
+fn survives(id: &str, params: &[serde_json::Value]) {
+    let (w, h) = (9, 7);
+    let src = image(w, h, |x, y| [(x * 25) as u8, (y * 30) as u8, 90, if x == 0 { 0 } else { 255 }]);
+    let tiny = PixelSpace { px: 1e-9, ..space(w, h) };
+    let huge = PixelSpace { px: 1e9, center: Point::new(f64::MAX, -1e300), ..space(w, h) };
+    let nan = PixelSpace { px: f64::NAN, ..space(w, h) };
+    for p in params {
+        for s in [tiny, huge, nan, space(w, h)] {
+            let mut out = src.clone();
+            fx(id, p.clone()).apply(&mut out, w, h, &s);
+            assert_eq!(out.len(), src.len());
+            let alphas = |d: &[u8]| d.as_chunks::<4>().0.iter().map(|p| p[3]).collect::<Vec<_>>();
+            if s.px == 1.0 {
+                assert_eq!(alphas(&out), alphas(&src), "{id}: coverage kept");
+            }
+        }
+    }
+    // A size that doesn't match, and an empty raster, do nothing.
+    let mut odd = vec![1u8; 10];
+    fx(id, json!({})).apply(&mut odd, 3, 3, &space(3, 3));
+    assert_eq!(odd, vec![1u8; 10]);
+    fx(id, json!({})).apply(&mut [], 0, 0, &space(1, 1));
+}
+
+#[test]
+fn photocopy_copies_the_edges_of_dark_areas() {
+    assert_eq!(fx("sketch.photocopy", json!({})), PixelFx::Photocopy { detail: 7.0, darkness: 25.0 });
+    assert_eq!(fx("sketch.photocopy", json!({"detail": 1e308, "darkness": -5})), PixelFx::Photocopy { detail: 24.0, darkness: 1.0 });
+    let (w, h) = (64, 16);
+    let src = image(w, h, |x, _| grey(if x < 32 { 30 } else { 230 }));
+    let out = run("sketch.photocopy", json!({"detail": 20}), &src, w, h);
+    // Black just on the dark side of the edge; white in the dark area's middle and in the light.
+    assert!(at(&out, w, 30, 8) < 64, "edge {}", at(&out, w, 30, 8));
+    assert!(at(&out, w, 6, 8) > 192, "dark area {}", at(&out, w, 6, 8));
+    assert!(at(&out, w, 50, 8) > 192, "light area {}", at(&out, w, 50, 8));
+    assert_eq!(out, run("sketch.photocopy", json!({"detail": 20}), &src, w, h), "deterministic");
+    // A higher Darkness copies more.
+    let more = run("sketch.photocopy", json!({"detail": 20, "darkness": 50}), &src, w, h);
+    let less = run("sketch.photocopy", json!({"detail": 20, "darkness": 1}), &src, w, h);
+    assert!(black(&more) >= black(&less));
+    survives("sketch.photocopy", &[json!({}), json!({"detail": 1e308, "darkness": "NaN"}), json!({"detail": -1e308, "darkness": [1]})]);
+}
+
+#[test]
+fn stamp_prints_solid_black_and_white() {
+    assert_eq!(fx("sketch.stamp", json!({})), PixelFx::Stamp { balance: 25.0, smoothness: 5.0 });
+    assert_eq!(fx("sketch.stamp", json!({"lightDarkBalance": 1e308, "smoothness": -1})), PixelFx::Stamp { balance: 50.0, smoothness: 1.0 });
+    let (w, h) = (64, 8);
+    let src = image(w, h, |x, _| grey((x * 4) as u8));
+    let few = run("sketch.stamp", json!({"lightDarkBalance": 0}), &src, w, h);
+    let many = run("sketch.stamp", json!({"lightDarkBalance": 50}), &src, w, h);
+    assert!(black(&many) > black(&few), "{} vs {}", black(&many), black(&few));
+    // Pure black and white, but for the one pixel wide edges.
+    let mixed = many.as_chunks::<4>().0.iter().filter(|p| p[0] != 0 && p[0] != 255).count();
+    assert!(mixed * 10 < many.len() / 4, "{mixed} grey pixels");
+    assert_eq!(at(&many, w, 0, 4), 0);
+    assert_eq!(at(&many, w, 63, 4), 255);
+    survives(
+        "sketch.stamp",
+        &[json!({}), json!({"lightDarkBalance": "NaN", "smoothness": 1e308}), json!({"lightDarkBalance": -1e308, "smoothness": null})],
+    );
+}
+
+#[test]
+fn charcoal_draws_bold_edges_and_sketches_the_midtones() {
+    assert_eq!(fx("sketch.charcoal", json!({})), PixelFx::Charcoal { thickness: 1.0, detail: 1.0, balance: 50.0 });
+    assert_eq!(
+        fx("sketch.charcoal", json!({"thickness": 1e308, "detail": -5, "lightDarkBalance": "x"})),
+        PixelFx::Charcoal { thickness: 7.0, detail: 0.0, balance: 50.0 }
+    );
+    let (w, h) = (64, 48);
+    // Black on the left, white on the right: a bold line at the edge, nothing in the white.
+    let step = image(w, h, |x, _| grey(if x < 32 { 0 } else { 255 }));
+    let out = run("sketch.charcoal", json!({}), &step, w, h);
+    assert!((28..36).any(|x| at(&out, w, x, 24) < 64), "edge");
+    assert!((48..64).all(|x| at(&out, w, x, 24) == 255), "white stays white");
+    // A midtone is sketched in strokes, more of it the more the balance reaches into the lights.
+    let mid = image(w, h, |_, _| grey(128));
+    let sketched = run("sketch.charcoal", json!({}), &mid, w, h);
+    let (n, total) = (black(&sketched), w * h);
+    assert!(n > total / 50 && n < total * 9 / 10, "{n} of {total}");
+    let darker = run("sketch.charcoal", json!({"lightDarkBalance": 100}), &mid, w, h);
+    let lighter = run("sketch.charcoal", json!({"lightDarkBalance": 0}), &mid, w, h);
+    assert!(black(&darker) > black(&lighter));
+    assert_eq!(sketched, run("sketch.charcoal", json!({}), &mid, w, h), "deterministic");
+    let white = image(w, h, |_, _| grey(255));
+    assert_eq!(black(&run("sketch.charcoal", json!({"lightDarkBalance": 0}), &white, w, h)), 0);
+    survives(
+        "sketch.charcoal",
+        &[json!({}), json!({"thickness": 1e308, "detail": "NaN", "lightDarkBalance": [1]}), json!({"thickness": -1e308, "detail": 1e308})],
+    );
+}
+
+#[test]
+fn bas_relief_lights_the_surfaces_facing_the_light() {
+    assert_eq!(fx("sketch.basRelief", json!({})), PixelFx::BasRelief { detail: 13.0, smoothness: 3.0, light: Light::Bottom });
+    assert_eq!(
+        fx("sketch.basRelief", json!({"detail": 0, "smoothness": 1e308, "lightDirection": "Top"})),
+        PixelFx::BasRelief { detail: 1.0, smoothness: 15.0, light: Light::Top }
+    );
+    // Dark above, light below: the edge is lit from one side and shaded from the other.
+    let (w, h) = (16, 48);
+    let src = image(w, h, |_, y| grey(if y < 24 { 20 } else { 235 }));
+    let below = run("sketch.basRelief", json!({"lightDirection": "bottom"}), &src, w, h);
+    let above = run("sketch.basRelief", json!({"lightDirection": "top"}), &src, w, h);
+    let edge = (0..h).map(|y| (y, i32::from(at(&below, w, 8, y)) - i32::from(at(&above, w, 8, y)))).max_by_key(|(_, d)| d.abs());
+    assert!(edge.is_some_and(|(_, d)| d.abs() > 100), "{edge:?}");
+    // Flat areas are grey.
+    for y in [2, 45] {
+        let v = at(&below, w, 8, y);
+        assert!((90..190).contains(&v), "flat {v}");
+    }
+    survives(
+        "sketch.basRelief",
+        &[json!({}), json!({"detail": "NaN", "smoothness": 1e308, "lightDirection": 3}), json!({"detail": -1e308, "smoothness": null})],
+    );
+}
+
+#[test]
+fn sketch_filters_reach_beyond_nothing_they_do_not_paint() {
+    for id in ["sketch.basRelief", "sketch.charcoal", "sketch.photocopy", "sketch.stamp"] {
+        let f = fx(id, json!({}));
+        assert_eq!(f.outset(Rect::new(0.0, 0.0, 50.0, 50.0)), 0.0, "{id} keeps the object's coverage");
+        assert!(f.reach().is_some_and(|r| r.is_finite() && r > 0.0), "{id} reach");
+    }
+}
@@ -269,7 +269,7 @@ impl Tones {
    }

    /// The tone at pixel (`x`, `y`) and its slope per document unit along the document's axes.
-    fn slope(&self, x: usize, y: usize, place: &Place) -> (f64, Vec2) {
+    pub(super) fn slope(&self, x: usize, y: usize, place: &Place) -> (f64, Vec2) {
        let gx = 0.5 * (self.get(x + 1, y) - self.get(x.saturating_sub(1), y));
        let gy = 0.5 * (self.get(x, y + 1) - self.get(x, y.saturating_sub(1)));
        // Per pixel → per document unit: through the transpose of the document → pixel map.
@@ -52,13 +52,17 @@ const PIXELATE: [(&str, &str); 4] =
    [("pixelate.colorHalftone", "{}"), ("pixelate.crystallize", "{}"), ("pixelate.mezzotint", "{}"), ("pixelate.pointillize", "{}")];

 /// Effect › Sketch, at their defaults.
-const SKETCH: [(&str, &str); 6] = [
+const SKETCH: [(&str, &str); 10] = [
+    ("sketch.basRelief", "{}"),
    ("sketch.chalkCharcoal", "{}"),
+    ("sketch.charcoal", "{}"),
    ("sketch.chrome", "{}"),
    ("sketch.graphicPen", "{}"),
    ("sketch.halftonePattern", "{}"),
+    ("sketch.photocopy", "{}"),
    ("sketch.plaster", "{}"),
    ("sketch.reticulation", "{}"),
+    ("sketch.stamp", "{}"),
 ];

 /// Effect › Texture, at their defaults.
@@ -340,6 +340,10 @@ fn structured_junk() {
        ("effect.apply", json!({"effect": "sketch.chrome", "params": {"detail": -1e308, "smoothness": "NaN"}})),
        ("effect.apply", json!({"effect": "sketch.graphicPen", "params": {"strokeLength": -1e308, "lightDarkBalance": "NaN", "strokeDirection": 3}})),
        ("effect.apply", json!({"effect": "sketch.halftonePattern", "params": {"size": -1e308, "contrast": "NaN", "patternType": 3}})),
+        ("effect.apply", json!({"effect": "sketch.basRelief", "params": {"detail": "NaN", "smoothness": 1e308, "lightDirection": 3}})),
+        ("effect.apply", json!({"effect": "sketch.charcoal", "params": {"thickness": 1e308, "detail": -1e308, "lightDarkBalance": [1]}})),
+        ("effect.apply", json!({"effect": "sketch.photocopy", "params": {"detail": "1e999", "darkness": null}})),
+        ("effect.apply", json!({"effect": "sketch.stamp", "params": {"lightDarkBalance": -1e308, "smoothness": "NaN"}})),
        ("effect.apply", json!({"effect": "sketch.reticulation", "params": {"density": "NaN", "foregroundLevel": -1e308, "backgroundLevel": 1e308}})),
        ("effect.apply", json!({"effect": "texture.craquelure", "params": {"crackSpacing": -1e308, "crackDepth": "NaN", "crackBrightness": 1e308}})),
        ("effect.apply", json!({"effect": "texture.grain", "params": {"intensity": 1e308, "contrast": [1], "grainType": 7}})),
@@ -288,7 +288,7 @@ fn choices(effect: &str, key: &str) -> Option<form::Choices> {
        ("sketch.plaster", "lightDirection") => Some(&vectorcraft_effects::pixel::LIGHT_DIRECTIONS),
        ("texture.grain", "grainType") => Some(&vectorcraft_effects::pixel::GRAIN_TYPES),
        ("texture.texturizer", "texture") => Some(&vectorcraft_effects::pixel::TEXTURES),
-        ("texture.texturizer", "lightDirection") => Some(&vectorcraft_effects::pixel::LIGHT_DIRECTIONS),
+        ("sketch.basRelief" | "texture.texturizer", "lightDirection") => Some(&vectorcraft_effects::pixel::LIGHT_DIRECTIONS),
        ("video.deinterlace", "eliminate") => Some(&[("Odd Fields", "odd"), ("Even Fields", "even")]),
        ("video.deinterlace", "create") => Some(&[("Duplication", "duplication"), ("Interpolation", "interpolation")]),
        ("stylize.innerGlow", "source") => Some(&[("Center", "center"), ("Edge", "edge")]),
@@ -453,6 +453,7 @@ pub(crate) fn humanize(k: &str) -> String {
        "Channel2" => "Channel 2:".into(),
        "Channel3" => "Channel 3:".into(),
        "Channel4" => "Channel 4:".into(),
+        "Light Dark Balance" => "Light/Dark Balance:".into(),
        "Include Cmy Blacks" => "Include Blacks with CMY:".into(),
        "Align To Path" => "Align to Path:".into(),
        "Overlap Variation" | "Curviness Variation" | "Spacing Variation" => "Variation:".into(),
@@ -213,7 +213,11 @@ fn raster_filter_dialogs_preview_and_apply() {
        ("pixelate.crystallize", "cellSize", "20"),
        ("pixelate.mezzotint", "type", "longLines"),
        ("pixelate.pointillize", "cellSize", "12"),
+        ("sketch.basRelief", "lightDirection", "left"),
+        ("sketch.charcoal", "thickness", "5"),
        ("sketch.halftonePattern", "patternType", "line"),
+        ("sketch.photocopy", "darkness", "40"),
+        ("sketch.stamp", "lightDarkBalance", "10"),
        ("sketch.plaster", "lightDirection", "bottomLeft"),
        ("texture.craquelure", "crackDepth", "9"),
        ("texture.grain", "grainType", "stippled"),
@@ -5175,6 +5175,17 @@ theme	Appearance	Външен вид
 	Definition	Дефиниция
 	Brush Detail	Детайл на четката
 	Shadow Intensity	Интензивност на сенките
+	Bas Relief…	Барелеф…
+	Bas Relief	Барелеф
+	Charcoal…	Въглен…
+	Charcoal	Въглен
+	Photocopy…	Фотокопие…
+	Photocopy	Фотокопие
+	Stamp…	Печат…
+	Stamp	Печат
+	Thickness	Дебелина
+	Detail	Детайл
+	Light/Dark Balance	Баланс светло/тъмно
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	„Редактиране на оригинал“ отваря само файлове с изображения и документи; „{name}“ не е такъв файл
@msg	only http, https and mailto URLs open in the browser, not “{url}”	в браузъра се отварят само URL адреси с http, https и mailto, не „{url}“
@@ -5202,6 +5202,17 @@ mark-style	Japanese	Japonské
 	Definition	Definice
 	Brush Detail	Detail štětce
 	Shadow Intensity	Intenzita stínů
+	Bas Relief…	Basreliéf…
+	Bas Relief	Basreliéf
+	Charcoal…	Uhel…
+	Charcoal	Uhel
+	Photocopy…	Fotokopie…
+	Photocopy	Fotokopie
+	Stamp…	Razítko…
+	Stamp	Razítko
+	Thickness	Tloušťka
+	Detail	Detail
+	Light/Dark Balance	Vyvážení světlé/tmavé
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	Upravit originál otevírá pouze soubory obrázků a dokumentů; „{name}“ mezi ně nepatří
@msg	only http, https and mailto URLs open in the browser, not “{url}”	v prohlížeči se otevírají pouze adresy URL http, https a mailto, ne „{url}“
@@ -5221,6 +5221,17 @@ swatch	Bright Violet	Kraftig violet
 	Definition	Definition
 	Brush Detail	Penseldetalje
 	Shadow Intensity	Skyggeintensitet
+	Bas Relief…	Basrelief…
+	Bas Relief	Basrelief
+	Charcoal…	Kul…
+	Charcoal	Kul
+	Photocopy…	Fotokopi…
+	Photocopy	Fotokopi
+	Stamp…	Stempel…
+	Stamp	Stempel
+	Thickness	Tykkelse
+	Detail	Detalje
+	Light/Dark Balance	Lys/mørk-balance
 	Move Anchor Point	Flyt ankerpunkt
 	Chalk & Charcoal…	Kridt og kul…
 	Chalk & Charcoal	Kridt og kul
@@ -4781,6 +4781,18 @@ effect	Soft	Weich
 	Definition	Definition
 	Brush Detail	Pinseldetail
 	Shadow Intensity	Schattenintensität
+	Bas Relief…	Basrelief…
+	Bas Relief	Basrelief
+	Charcoal…	Holzkohle…
+	Charcoal	Holzkohle
+	Photocopy…	Fotokopie…
+	Photocopy	Fotokopie
+	Stamp…	Stempel…
+	Stamp	Stempel
+	Thickness	Stärke
+	Detail	Detail
+	Light/Dark Balance	Hell-Dunkel-Balance
+	Light Direction	Lichtrichtung
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	Original bearbeiten öffnet nur Bild- und Dokumentdateien; „{name}“ gehört nicht dazu
@msg	only http, https and mailto URLs open in the browser, not “{url}”	nur http-, https- und mailto-URLs werden im Browser geöffnet, nicht „{url}“
@@ -5154,6 +5154,17 @@ effect	Points	Σημεία
 	Definition	Ευκρίνεια
 	Brush Detail	Λεπτομέρεια πινέλου
 	Shadow Intensity	Ένταση σκιών
+	Bas Relief…	Ανάγλυφο…
+	Bas Relief	Ανάγλυφο
+	Charcoal…	Κάρβουνο…
+	Charcoal	Κάρβουνο
+	Photocopy…	Φωτοαντίγραφο…
+	Photocopy	Φωτοαντίγραφο
+	Stamp…	Σφραγίδα…
+	Stamp	Σφραγίδα
+	Thickness	Πάχος
+	Detail	Λεπτομέρεια
+	Light/Dark Balance	Ισορροπία φωτεινού/σκούρου
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	η Επεξεργασία πρωτοτύπου ανοίγει μόνο αρχεία εικόνων και εγγράφων· το «{name}» δεν είναι τέτοιο αρχείο
@msg	only http, https and mailto URLs open in the browser, not “{url}”	στο πρόγραμμα περιήγησης ανοίγουν μόνο URL http, https και mailto, όχι το «{url}»
@@ -5144,6 +5144,17 @@ mark-style	Japanese	Japonesas
 	Definition	Definición
 	Brush Detail	Detalle del pincel
 	Shadow Intensity	Intensidad de sombras
+	Bas Relief…	Bajorrelieve…
+	Bas Relief	Bajorrelieve
+	Charcoal…	Carboncillo…
+	Charcoal	Carboncillo
+	Photocopy…	Fotocopia…
+	Photocopy	Fotocopia
+	Stamp…	Sello…
+	Stamp	Sello
+	Thickness	Grosor
+	Detail	Detalle
+	Light/Dark Balance	Equilibrio claro/oscuro
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	Editar original solo abre archivos de imagen y de documento; “{name}” no lo es
@msg	only http, https and mailto URLs open in the browser, not “{url}”	solo se abren en el navegador las URL http, https y mailto, no “{url}”
@@ -5166,6 +5166,17 @@ mark-style	Japanese	Japanilainen
 	Definition	Terävyys
 	Brush Detail	Siveltimen yksityiskohta
 	Shadow Intensity	Varjojen voimakkuus
+	Bas Relief…	Matala korkokuva…
+	Bas Relief	Matala korkokuva
+	Charcoal…	Hiili…
+	Charcoal	Hiili
+	Photocopy…	Valokopio…
+	Photocopy	Valokopio
+	Stamp…	Leima…
+	Stamp	Leima
+	Thickness	Paksuus
+	Detail	Yksityiskohta
+	Light/Dark Balance	Vaalean ja tumman tasapaino
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	Muokkaa alkuperäistä avaa vain kuva- ja asiakirjatiedostoja; “{name}” ei ole sellainen
@msg	only http, https and mailto URLs open in the browser, not “{url}”	selaimessa avataan vain http-, https- ja mailto-URL-osoitteet, ei “{url}”
@@ -5201,6 +5201,17 @@ theme	Appearance	Apparence
 	Definition	Définition
 	Brush Detail	Détail du pinceau
 	Shadow Intensity	Intensité des ombres
+	Bas Relief…	Bas-relief…
+	Bas Relief	Bas-relief
+	Charcoal…	Fusain…
+	Charcoal	Fusain
+	Photocopy…	Photocopie…
+	Photocopy	Photocopie
+	Stamp…	Tampon…
+	Stamp	Tampon
+	Thickness	Épaisseur
+	Detail	Détail
+	Light/Dark Balance	Équilibre clair/foncé
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	Modifier l’original n’ouvre que les fichiers d’image et de document ; « {name} » n’en est pas un
@msg	only http, https and mailto URLs open in the browser, not “{url}”	seules les URL http, https et mailto s’ouvrent dans le navigateur, pas « {url} »
@@ -5188,6 +5188,17 @@ imageTrace	Outline	Körvonal
 	Definition	Kidolgozottság
 	Brush Detail	Ecsetrészletesség
 	Shadow Intensity	Árnyék intenzitása
+	Bas Relief…	Dombormű…
+	Bas Relief	Dombormű
+	Charcoal…	Szén…
+	Charcoal	Szén
+	Photocopy…	Fénymásolat…
+	Photocopy	Fénymásolat
+	Stamp…	Bélyegző…
+	Stamp	Bélyegző
+	Thickness	Vastagság
+	Detail	Részletesség
+	Light/Dark Balance	Világos/sötét egyensúly
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	az Eredeti szerkesztése csak kép- és dokumentumfájlokat nyit meg; ez nem ilyen: „{name}”
@msg	only http, https and mailto URLs open in the browser, not “{url}”	a böngészőben csak a http-, https- és mailto-URL-ek nyílnak meg; ez nem ilyen: „{url}”
@@ -5221,6 +5221,17 @@ swatch	Bright Violet	Violet cerah
 	Definition	Definisi
 	Brush Detail	Detail kuas
 	Shadow Intensity	Intensitas bayangan
+	Bas Relief…	Relief dangkal…
+	Bas Relief	Relief dangkal
+	Charcoal…	Arang…
+	Charcoal	Arang
+	Photocopy…	Fotokopi…
+	Photocopy	Fotokopi
+	Stamp…	Stempel…
+	Stamp	Stempel
+	Thickness	Ketebalan
+	Detail	Detail
+	Light/Dark Balance	Keseimbangan terang/gelap
 	Move Anchor Point	Pindahkan titik jangkar
 	Chalk & Charcoal…	Kapur dan arang…
 	Chalk & Charcoal	Kapur dan arang
@@ -4815,6 +4815,17 @@ lighting	Light	Luce
 	Definition	Definizione
 	Brush Detail	Dettaglio pennello
 	Shadow Intensity	Intensità ombre
+	Bas Relief…	Bassorilievo…
+	Bas Relief	Bassorilievo
+	Charcoal…	Carboncino…
+	Charcoal	Carboncino
+	Photocopy…	Fotocopia…
+	Photocopy	Fotocopia
+	Stamp…	Timbro…
+	Stamp	Timbro
+	Thickness	Spessore
+	Detail	Dettaglio
+	Light/Dark Balance	Equilibrio chiaro/scuro
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	Modifica originale apre solo file di immagini e documenti; “{name}” non lo è
@msg	only http, https and mailto URLs open in the browser, not “{url}”	nel browser si aprono solo URL http, https e mailto, non “{url}”
@@ -4855,6 +4855,17 @@ lighting	Light	ライト
 	Definition	精細度
 	Brush Detail	ブラシの細かさ
 	Shadow Intensity	シャドウの強さ
+	Bas Relief…	レリーフ…
+	Bas Relief	レリーフ
+	Charcoal…	木炭…
+	Charcoal	木炭
+	Photocopy…	コピー…
+	Photocopy	コピー
+	Stamp…	スタンプ…
+	Stamp	スタンプ
+	Thickness	太さ
+	Detail	ディテール
+	Light/Dark Balance	明暗のバランス
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	「オリジナルを編集」で開けるのは画像ファイルとドキュメントファイルだけです: 「{name}」はどちらでもありません
@msg	only http, https and mailto URLs open in the browser, not “{url}”	ブラウザーで開けるのは http、https、mailto の URL だけです: 「{url}」は開けません
@@ -5147,6 +5147,17 @@ imageTrace	Outline	კონტური
 	Definition	განსაზღვრულობა
 	Brush Detail	ფუნჯის დეტალი
 	Shadow Intensity	ჩრდილის ინტენსივობა
+	Bas Relief…	დაბალი რელიეფი…
+	Bas Relief	დაბალი რელიეფი
+	Charcoal…	ნახშირი…
+	Charcoal	ნახშირი
+	Photocopy…	ფოტოასლი…
+	Photocopy	ფოტოასლი
+	Stamp…	ბეჭედი…
+	Stamp	ბეჭედი
+	Thickness	სისქე
+	Detail	დეტალი
+	Light/Dark Balance	ნათელი/მუქი ბალანსი
 	Move Anchor Point	საყრდენი წერტილის გადაადგილება
 	Alt key toggles to Smooth Tool	Alt კლავიში ჩართავს გაგლუვების ხელსაწყოს
@msg	{label} keeps 1 of the document's {n} artboards: the file reopens with one. Turn on Preserve Editing Capabilities to keep them all.	{label} ინახავს დოკუმენტის {n} სამუშაო დაფიდან 1-ს: ფაილი ხელახლა ერთით გაიხსნება. ყველას შესანარჩუნებლად ჩართეთ „რედაქტირების შესაძლებლობების შენარჩუნება“.
@@ -4778,6 +4778,17 @@ lighting	Light	광원
 	Definition	선명도
 	Brush Detail	브러시 세부 묘사
 	Shadow Intensity	그림자 강도
+	Bas Relief…	부조…
+	Bas Relief	부조
+	Charcoal…	목탄…
+	Charcoal	목탄
+	Photocopy…	복사…
+	Photocopy	복사
+	Stamp…	스탬프…
+	Stamp	스탬프
+	Thickness	두께
+	Detail	세부
+	Light/Dark Balance	밝음/어두움 균형
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	원본 편집은 이미지 및 문서 파일만 엽니다. “{name}”은(는) 해당하지 않습니다
@msg	only http, https and mailto URLs open in the browser, not “{url}”	브라우저에서는 http, https, mailto URL만 열립니다. “{url}”은(는) 열 수 없습니다
@@ -5263,6 +5263,17 @@ swatch	Bright Violet	Felviolet
 	Definition	Definitie
 	Brush Detail	Penseeldetail
 	Shadow Intensity	Schaduwintensiteit
+	Bas Relief…	Basreliëf…
+	Bas Relief	Basreliëf
+	Charcoal…	Houtskool…
+	Charcoal	Houtskool
+	Photocopy…	Fotokopie…
+	Photocopy	Fotokopie
+	Stamp…	Stempel…
+	Stamp	Stempel
+	Thickness	Dikte
+	Detail	Detail
+	Light/Dark Balance	Licht/donker-balans
 	Move Anchor Point	Ankerpunt verplaatsen
 	Chalk & Charcoal…	Krijt en houtskool…
 	Chalk & Charcoal	Krijt en houtskool
@@ -5054,6 +5054,17 @@ mark-style	Japanese	Japońskie
 	Definition	Wyrazistość
 	Brush Detail	Szczegółowość pędzla
 	Shadow Intensity	Intensywność cieni
+	Bas Relief…	Płaskorzeźba…
+	Bas Relief	Płaskorzeźba
+	Charcoal…	Węgiel…
+	Charcoal	Węgiel
+	Photocopy…	Fotokopia…
+	Photocopy	Fotokopia
+	Stamp…	Stempel…
+	Stamp	Stempel
+	Thickness	Grubość
+	Detail	Szczegóły
+	Light/Dark Balance	Równowaga jasne/ciemne
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	Edytuj oryginał otwiera tylko pliki obrazów i dokumentów; „{name}” do nich nie należy
@msg	only http, https and mailto URLs open in the browser, not “{url}”	w przeglądarce otwierają się tylko adresy URL http, https i mailto, a nie „{url}”
@@ -5119,6 +5119,17 @@ mark-style	Japanese	Japonesas
 	Definition	Definição
 	Brush Detail	Detalhe do pincel
 	Shadow Intensity	Intensidade da sombra
+	Bas Relief…	Baixo-relevo…
+	Bas Relief	Baixo-relevo
+	Charcoal…	Carvão…
+	Charcoal	Carvão
+	Photocopy…	Fotocópia…
+	Photocopy	Fotocópia
+	Stamp…	Carimbo…
+	Stamp	Carimbo
+	Thickness	Espessura
+	Detail	Detalhe
+	Light/Dark Balance	Equilíbrio claro/escuro
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	Editar Original abre apenas arquivos de imagem e de documento; “{name}” não é um deles
@msg	only http, https and mailto URLs open in the browser, not “{url}”	apenas URLs http, https e mailto abrem no navegador, não “{url}”
@@ -4811,6 +4811,17 @@ lighting	Light	Свет
 	Definition	Чёткость
 	Brush Detail	Детализация кисти
 	Shadow Intensity	Интенсивность теней
+	Bas Relief…	Барельеф…
+	Bas Relief	Барельеф
+	Charcoal…	Уголь…
+	Charcoal	Уголь
+	Photocopy…	Фотокопия…
+	Photocopy	Фотокопия
+	Stamp…	Штамп…
+	Stamp	Штамп
+	Thickness	Толщина
+	Detail	Детали
+	Light/Dark Balance	Баланс светлого и тёмного
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	«Редактировать оригинал» открывает только файлы изображений и документов; «{name}» к ним не относится
@msg	only http, https and mailto URLs open in the browser, not “{url}”	в браузере открываются только URL с http, https и mailto, а не «{url}»
@@ -5158,6 +5158,17 @@ theme	Appearance	Utseende
 	Definition	Skärpa
 	Brush Detail	Penseldetalj
 	Shadow Intensity	Skuggintensitet
+	Bas Relief…	Basrelief…
+	Bas Relief	Basrelief
+	Charcoal…	Kol…
+	Charcoal	Kol
+	Photocopy…	Fotokopia…
+	Photocopy	Fotokopia
+	Stamp…	Stämpel…
+	Stamp	Stämpel
+	Thickness	Tjocklek
+	Detail	Detalj
+	Light/Dark Balance	Balans ljust/mörkt
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	Redigera original öppnar bara bild- och dokumentfiler; ”{name}” är ingen sådan
@msg	only http, https and mailto URLs open in the browser, not “{url}”	bara http-, https- och mailto-URL:er öppnas i webbläsaren, inte ”{url}”
@@ -4795,6 +4795,17 @@ lighting	Light	Світло
 	Definition	Чіткість
 	Brush Detail	Деталізація пензля
 	Shadow Intensity	Інтенсивність тіней
+	Bas Relief…	Барельєф…
+	Bas Relief	Барельєф
+	Charcoal…	Вугілля…
+	Charcoal	Вугілля
+	Photocopy…	Фотокопія…
+	Photocopy	Фотокопія
+	Stamp…	Штамп…
+	Stamp	Штамп
+	Thickness	Товщина
+	Detail	Деталі
+	Light/Dark Balance	Баланс світлого й темного
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	«Редагувати оригінал» відкриває лише файли зображень і документів; «{name}» до них не належить
@msg	only http, https and mailto URLs open in the browser, not “{url}”	у браузері відкриваються лише URL з http, https і mailto, а не «{url}»
@@ -4795,6 +4795,17 @@ theme	Appearance	Giao diện
 	Definition	Độ nét
 	Brush Detail	Chi tiết cọ
 	Shadow Intensity	Cường độ bóng
+	Bas Relief…	Chạm nổi…
+	Bas Relief	Chạm nổi
+	Charcoal…	Than củi…
+	Charcoal	Than củi
+	Photocopy…	Bản photocopy…
+	Photocopy	Bản photocopy
+	Stamp…	Con dấu…
+	Stamp	Con dấu
+	Thickness	Độ dày
+	Detail	Chi tiết
+	Light/Dark Balance	Cân bằng sáng/tối
 # Links and Attributes: files and URLs handed to other apps.
@msg	Edit Original opens image and document files only; “{name}” is not one	Chỉnh sửa bản gốc chỉ mở tệp hình ảnh và tài liệu; “{name}” không thuộc loại đó
@msg	only http, https and mailto URLs open in the browser, not “{url}”	chỉ URL http, https và mailto mới được mở trong trình duyệt, không mở “{url}”
@@ -5035,6 +5035,17 @@ lighting	Light	光源
 	Definition	清晰度
 	Brush Detail	画笔细节
 	Shadow Intensity	阴影强度
+	Bas Relief…	浅浮雕…
+	Bas Relief	浅浮雕
+	Charcoal…	炭笔…
+	Charcoal	炭笔
+	Photocopy…	影印…
+	Photocopy	影印
+	Stamp…	图章…
+	Stamp	图章
+	Thickness	粗细
+	Detail	细节
+	Light/Dark Balance	明暗平衡
 	Enable Guides for 9-Slice Scaling	启用 9-slice 缩放参考线
@msg	cancelled; nothing was changed	已取消；未做任何更改
@msg	Save writes {_1}, not {_2}: use file.saveAsTemplate to write it	保存会写入 {_1}，而不是 {_2}：要写入该格式请使用 file.saveAsTemplate
@@ -4845,6 +4845,17 @@ lighting	Light	光源
 	Definition	清晰度
 	Brush Detail	筆刷細節
 	Shadow Intensity	陰影強度
+	Bas Relief…	淺浮雕…
+	Bas Relief	淺浮雕
+	Charcoal…	炭筆…
+	Charcoal	炭筆
+	Photocopy…	影印…
+	Photocopy	影印
+	Stamp…	圖章…
+	Stamp	圖章
+	Thickness	粗細
+	Detail	細節
+	Light/Dark Balance	明暗平衡
 	Enable Guides for 9-Slice Scaling	啟用 9-slice 縮放參考線
 	Persistent	持久
 	Library Panel Options	資料庫面板選項
@@ -178,14 +178,32 @@ fn effect_menu_lists_the_sketch_filters_between_sharpen_and_stylize() {
    let entries = menus::menu_entries(&app);
    let sketch: Vec<_> = entries.iter().filter(|e| e.path == ["Effect", "Sketch"]).collect();
    let labels: Vec<&str> = sketch.iter().map(|e| e.label.as_str()).collect();
-    assert_eq!(labels, ["Chalk & Charcoal…", "Chrome…", "Graphic Pen…", "Halftone Pattern…", "Plaster…", "Reticulation…"]);
+    assert_eq!(
+        labels,
+        [
+            "Bas Relief…",
+            "Chalk & Charcoal…",
+            "Charcoal…",
+            "Chrome…",
+            "Graphic Pen…",
+            "Halftone Pattern…",
+            "Photocopy…",
+            "Plaster…",
+            "Reticulation…",
+            "Stamp…"
+        ]
+    );
    assert!(sketch.iter().all(|e| e.command.as_deref() == Some("effect.dialog")));
-    assert_eq!(sketch[0].params, json!({"effect": "sketch.chalkCharcoal"}));
-    assert_eq!(sketch[1].params, json!({"effect": "sketch.chrome"}));
-    assert_eq!(sketch[2].params, json!({"effect": "sketch.graphicPen"}));
-    assert_eq!(sketch[3].params, json!({"effect": "sketch.halftonePattern"}));
-    assert_eq!(sketch[4].params, json!({"effect": "sketch.plaster"}));
-    assert_eq!(sketch[5].params, json!({"effect": "sketch.reticulation"}));
+    assert_eq!(sketch[0].params, json!({"effect": "sketch.basRelief"}));
+    assert_eq!(sketch[1].params, json!({"effect": "sketch.chalkCharcoal"}));
+    assert_eq!(sketch[2].params, json!({"effect": "sketch.charcoal"}));
+    assert_eq!(sketch[3].params, json!({"effect": "sketch.chrome"}));
+    assert_eq!(sketch[4].params, json!({"effect": "sketch.graphicPen"}));
+    assert_eq!(sketch[5].params, json!({"effect": "sketch.halftonePattern"}));
+    assert_eq!(sketch[6].params, json!({"effect": "sketch.photocopy"}));
+    assert_eq!(sketch[7].params, json!({"effect": "sketch.plaster"}));
+    assert_eq!(sketch[8].params, json!({"effect": "sketch.reticulation"}));
+    assert_eq!(sketch[9].params, json!({"effect": "sketch.stamp"}));
    let at = |label: &str| entries.iter().position(|e| e.path[0] == "Effect" && e.label == label).unwrap();
    assert!(at("Unsharp Mask…") < at("Chalk & Charcoal…") && at("Chalk & Charcoal…") < at("Chrome…"));
    assert!(at("Chrome…") < at("Graphic Pen…") && at("Graphic Pen…") < at("Halftone Pattern…"));
@@ -1,6 +1,6 @@
 # Effects parity

-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-20 · **Change:** minor (G2: Effect › Artistic › Smudge Stick, Sponge and Watercolor; Photoshop filters 42/57, 15 remaining (14–24 h); G2: Sketch › Chrome; Sketch › Chalk & Charcoal, Graphic Pen and Reticulation and Artistic › Plastic Wrap, #2972, #2967, #2976, #3034: 37/57 Photoshop effects; 3D lighting: one to ten colored lights, smooth colored Inflate, legacy white-light appearance preserved; surface batching and restored seam minimum; scores and estimates unchanged; Zig Zag's Smooth points make a continuous wave, #2343; G2: Effect › Sketch › Halftone Pattern; Photoshop filters 42/57, 15 remaining (14–24 h); Round Corners also rounds corners where a curve meets a line or another curve, with Live Corners' cut; straight corners unchanged; score unchanged; Revolve: automatic smooth shading and default-on Cap with continuous rims; wide shadows and glows at high zoom, #1706; stacked Transform effects, #1705; 3D on nonzero compound paths, #1724; pattern tiles redraw, #1723; scores unchanged; Roughen's Smooth turn-backs, #1643; Scribble per region, #1648; score unchanged; Warp Arc bends in the object's proportions, #1578; Zig Zag ridges evenly spaced, #1558; effect parameters checked, #1592; score unchanged; raster effects after a pattern, radial or freeform gradient fill export at their place and size, #1536; score unchanged; 3D and Materials on outlined type and other shapes of many small curves, #1481; Twist 0° to 360°, #1524; twisted walls keep their faces, #1525; score unchanged; 3D and Materials: Inflate takes Twist, Taper and Cap; score unchanged; 3D and Materials: Perspective as the documented 0°–160° angle; 3D and Materials: the documented light settings) · **Target:** Adobe Illustrator 2026 (30.x)
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-20 · **Change:** minor (G2: Effect › Artistic › Smudge Stick, Sponge and Watercolor; Sketch › Bas Relief, Charcoal, Photocopy and Stamp, #2533; Photoshop filters 45/57, 12 remaining (8–14 h); G2: Sketch › Chrome; Sketch › Chalk & Charcoal, Graphic Pen and Reticulation and Artistic › Plastic Wrap, #2972, #2967, #2976, #3034: 37/57 Photoshop effects; 3D lighting: one to ten colored lights, smooth colored Inflate, legacy white-light appearance preserved; surface batching and restored seam minimum; scores and estimates unchanged; Zig Zag's Smooth points make a continuous wave, #2343; G2: Effect › Sketch › Halftone Pattern; Photoshop filters 45/57, 12 remaining (8–14 h); Round Corners also rounds corners where a curve meets a line or another curve, with Live Corners' cut; straight corners unchanged; score unchanged; Revolve: automatic smooth shading and default-on Cap with continuous rims; wide shadows and glows at high zoom, #1706; stacked Transform effects, #1705; 3D on nonzero compound paths, #1724; pattern tiles redraw, #1723; scores unchanged; Roughen's Smooth turn-backs, #1643; Scribble per region, #1648; score unchanged; Warp Arc bends in the object's proportions, #1578; Zig Zag ridges evenly spaced, #1558; effect parameters checked, #1592; score unchanged; raster effects after a pattern, radial or freeform gradient fill export at their place and size, #1536; score unchanged; 3D and Materials on outlined type and other shapes of many small curves, #1481; Twist 0° to 360°, #1524; twisted walls keep their faces, #1525; score unchanged; 3D and Materials: Inflate takes Twist, Taper and Cap; score unchanged; 3D and Materials: Perspective as the documented 0°–160° angle; 3D and Materials: the documented light settings) · **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
@@ -12,7 +12,7 @@ Part of [target-app-parity.md](target-app-parity.md); open work is in [gaps.md](
 | Group | Illustrator | VectorCraft | % | Remaining (h) |
 |---|---:|---:|---:|---:|
 | Illustrator effects (vector and stylize) | 50 | 46 | 92% | 6–10 |
-| Photoshop effects (raster, Effect Gallery) | 57 | 42 | 74% | 14–24 |
+| Photoshop effects (raster, Effect Gallery) | 57 | 45 | 79% | 8–14 |
 | 3D and Materials | 4 (+3 Classic) | 4 (initial: Extrude & Bevel, Revolve, Inflate, Rotate) | ~25% | 25–45 |
 | Beyond Illustrator: Effect › Color Adjustments (6), effect plug-ins (WebAssembly) | — | 6 + plug-ins | — | — |

@@ -44,7 +44,7 @@ its resolution, PDF export warns once per object with the requested and the lowe
 | Distort | Diffuse Glow, Glass, Ocean Ripple | 3/3 | — |
 | 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 | 6/14 (approximate Chalk & Charcoal, Chrome, Graphic Pen, Halftone Pattern, Plaster, Reticulation; Chalk & Charcoal and Graphic Pen defaults unverified) | Bas Relief, Charcoal, Conté Crayon, Note Paper, Photocopy, Stamp, Torn Edges, Water Paper |
+| Sketch | Bas Relief, Chalk & Charcoal, Charcoal, Chrome, Conté Crayon, Graphic Pen, Halftone Pattern, Note Paper, Photocopy, Plaster, Reticulation, Stamp, Torn Edges, Water Paper | 10/14 (approximate Bas Relief, Chalk & Charcoal, Charcoal, Chrome, Graphic Pen, Halftone Pattern, Photocopy, Plaster, Reticulation, Stamp; Chalk & Charcoal and Graphic Pen defaults unverified) | Conté Crayon, Note Paper, Torn Edges, Water Paper |
 | 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 | — |
@@ -52,7 +52,7 @@ its resolution, PDF export warns once per object with the requested and the lowe

 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 15 missing filters are ~10–18 h and the Effect
+(see [calibration](target-app-parity.md#calibration)), so the 12 missing filters are ~8–14 h and the Effect
 Gallery dialog another 4–6 h. These parallelize well across agents.

 Film Grain (`artistic.filmGrain`, Effect › Artistic) adds stable monochrome noise to shadows and
@@ -133,6 +133,22 @@ image in SVG and PDF. Ranges and defaults are chosen for VectorCraft, not assert
 Tests: `pixel::tests_paint::*`, `tests_rasterfilters`, `dialogs::tests::raster_filter_dialogs_*`,
 `tests_labels::effect_menu_lists_the_artistic_filters_*` and the `command_sweep` structured junk.

+Bas Relief, Charcoal, Photocopy and Stamp (`sketch.basRelief`, `sketch.charcoal`, `sketch.photocopy`,
+`sketch.stamp`, Effect › Sketch; `pixel/sketch_ink.rs`) redraw the object in black ink on white paper
+and keep its coverage. Bas Relief carves low relief lit from one of eight directions (Detail, Smoothness,
+Light Direction); Charcoal draws bold edges and sketches the midtones in diagonal strokes (Thickness,
+Detail, Light/Dark Balance); Photocopy prints only where a pixel is darker than its surroundings, so large
+dark areas copy around their edges (Detail, Darkness); Stamp reduces the object to solid black and
+white (Light/Dark Balance, Smoothness). Sizes are in document points at any Document Raster Effects
+resolution, strokes and noise lie in document space around the object's centre, and all four preview
+live. Behaviour is an original visual approximation based on
+[Illustrator's public effects reference](https://helpx.adobe.com/illustrator/using/summary-effects.html)
+and the [public Sketch filters guide](https://helpx.adobe.com/photoshop-elements/using/sketch-filters.html),
+not a pixel-identical proprietary implementation; the parameter ranges and defaults are chosen for
+VectorCraft, not asserted as measured proprietary defaults. Tests: `pixel::tests_sketch::*`,
+`tests_rasterfilters`, `command_sweep`, `dialogs::tests::raster_filter_dialogs_preview_and_apply` and
+`tests_labels::effect_menu_lists_the_sketch_filters_*`.
+
 ## 3D and Materials

 | Item | Ours |
@@ -155,6 +171,7 @@ angular cut caps, exact visibility, 3D Classic, Turntable, 3D export) is 25–45
 | 2026-10-19 | minor | Sketch › Chalk & Charcoal, Graphic Pen and Reticulation and Artistic › Plastic Wrap landed (#2972, #2967, #2976, #3034): 36/57 Photoshop effects (estimated; defaults unverified) |
 | 2026-10-16 | minor | Zig Zag with Smooth points draws a continuous wave: every peak and valley is a smooth point with handles along the path, a third of the way to the next ridge, so each span follows a half cosine through the path instead of a straight diagonal with rounded tips, also at the ends of open paths and for ridges much taller than they are apart (#2343); score unchanged (estimated) |
 | 2026-10-16 | minor | G2: Effect › Artistic › Smudge Stick, Sponge and Watercolor (live, with their documented options; original approximations); measured Photoshop filters 36/57 with Cutout, Neon Glow and Poster Edges, 21 remaining (19–31 h). |
+| 2026-10-16 | minor | G2: Effect › Sketch › Bas Relief, Charcoal, Photocopy and Stamp (black ink on white paper, sizes in points at any Document Raster Effects resolution, live preview); measured Photoshop filters 37/57 with Cutout, Neon Glow and Poster Edges, 20 remaining (18–30 h). |
 | 2026-10-16 | minor | G2: Effect › Sketch › Halftone Pattern (Size, Contrast, Pattern Type Circle, Dot or Line; black ink on white paper, Size in points at any Document Raster Effects resolution); measured Photoshop filters 30/57, 27 remaining (22–38 h). |
 | 2026-10-17 | minor | Colored Inflate: shared membrane normals and smooth RGB vector ramps replace flat polygon bands; channel groups are batched per solid-fill surface. White-light Inflate retains its original polygons, paint composition and seam joins; the 0.05 seam minimum is restored. Scores and hour estimates unchanged. |
 | 2026-10-16 | minor | 3D lighting: one to ten directional lights, a selectable light list, Add Light and Delete Light, independent settings and artboard gestures; ambient applied once and smooth RGB vector export; scores and hour estimates unchanged |