Furniture materials: wood, stone, iron, cloth, straw, fur, book spines and spellbook pages in both styles

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

art/generated/textures/materials/PROMPTS.md

@@ -0,0 +1,79 @@
+# Furniture materials (2026-11-07)
+
+Textures for the furniture boxes of `src/props.rs` (`Mat`, `mc`): every box of a material gets the
+texture on all sides, tinted by the box's own colour, so the furniture keeps its colours and gains
+detail (book spines with titles, a spellbook page with script, straw dummies, wood grain, ...).
+
+`fal-ai/flux-2-pro`, `image_size: square_hd`, `seed: 4400`; the material's sentence followed by:
+
+```text
+Square texture seen straight on, flat even lighting, no shadows, no vignette, no border, no text unless asked. Hand-painted pixel art style for a dark-fantasy dungeon strategy game: chunky clear shapes, crisp edges, readable at small size. Fills the whole image.
+```
+
+## wood
+
+```text
+Light weathered wooden planks running vertically with clear wood grain, knots and a few nail heads, in light neutral beige tones.
+```
+
+## stone
+
+```text
+A rough block of light grey stone with chisel marks, small pits and a few fine cracks, in light neutral grey tones.
+```
+
+## iron
+
+```text
+Light grey forged iron with hammer dents, scratches and a few rivets near the edges, in light neutral grey tones.
+```
+
+## cloth
+
+```text
+Woven fabric with a visible coarse weave, soft folds and a simple embroidered border near the edges, in light neutral off-white tones.
+```
+
+## straw
+
+```text
+Bundled straw and sackcloth: coarse burlap with straw sticking out, stitched seams, in light neutral beige tones.
+```
+
+## fur
+
+```text
+Thick shaggy animal fur with tufts and strands, in light neutral beige-grey tones.
+```
+
+## book
+
+```text
+The spine of one old leather-bound book standing upright, filling the whole image: two raised bands near the top and the bottom, a gilded frame and a short line of golden title letters in the middle, worn leather, in light neutral tones.
+```
+
+## paper
+
+```text
+An open page of an old spellbook filling the whole image: yellowed parchment with many lines of dark handwritten script, a small drawn magic circle and a red initial letter, in light neutral tones.
+```
+
+## Processing
+
+`tools/make_material.py` crops (stone and the book lay on white), turns the picture into grey
+detail with a mean brightness of 0.8 (the page keeps its colours) and scales to 64x64 (high-res)
+and 16x16 (pixel art):
+
+```bash
+T=tools/make_material.py
+python3 $T wood-raw.png wood
+python3 $T stone-raw.png stone --crop 0.15,0.15,0.75,0.6
+python3 $T iron-raw.png iron --crop 0.1,0.1,0.9,0.9
+python3 $T cloth-raw.png cloth --crop 0.12,0.12,0.88,0.88 --mean 0.85
+python3 $T straw-raw.png straw --crop 0.05,0.05,0.95,0.95
+python3 $T fur-raw.png fur
+python3 $T book-raw.png book --trim --mean 0.75
+python3 $T paper-raw.png paper --color --crop 0.04,0.04,0.96,0.96 --mean 0.8
+```
+
+Copied to `assets/textures/mat/`.

art/generated/textures/materials/batch.py

@@ -0,0 +1,16 @@
+# Material textures for the furniture (props.rs), 2026-11-07: (name, prompt). The game uses them
+# as grey detail that the furniture's own colours tint.
+STYLE = ("Square texture seen straight on, flat even lighting, no shadows, no vignette, no border, no text unless asked. Hand-painted pixel art "
+         "style for a dark-fantasy dungeon strategy game: chunky clear shapes, crisp edges, readable at small size. Fills the whole image.")
+MATS = {
+ "wood": "Light weathered wooden planks running vertically with clear wood grain, knots and a few nail heads, in light neutral beige tones.",
+ "stone": "A rough block of light grey stone with chisel marks, small pits and a few fine cracks, in light neutral grey tones.",
+ "iron": "Light grey forged iron with hammer dents, scratches and a few rivets near the edges, in light neutral grey tones.",
+ "cloth": "Woven fabric with a visible coarse weave, soft folds and a simple embroidered border near the edges, in light neutral off-white tones.",
+ "straw": "Bundled straw and sackcloth: coarse burlap with straw sticking out, stitched seams, in light neutral beige tones.",
+ "fur": "Thick shaggy animal fur with tufts and strands, in light neutral beige-grey tones.",
+ "book": "The spine of one old leather-bound book standing upright, filling the whole image: two raised bands near the top and the bottom, "
+         "a gilded frame and a short line of golden title letters in the middle, worn leather, in light neutral tones.",
+ "paper": "An open page of an old spellbook filling the whole image: yellowed parchment with many lines of dark handwritten script, "
+          "a small drawn magic circle and a red initial letter, in light neutral tones.",
+}

src/gfx.rs

@@ -101,6 +101,8 @@ pub struct Gfx {
     pub hd_sprites: Texture2D, // detailed sprites (see HD_SPRITES, hd_cell_view)
     pub atlas_hd: Texture2D,   // the tile atlas of the high-res style, 64x64 tiles (see HD_TILES)
     pub atlas_hd2: Texture2D,  // the same with 128x128 tiles (close up)
+    pub materials: [Texture2D; 8],    // furniture materials, high-res (see crate::props::Mat)
+    pub materials_px: [Texture2D; 8], // the same for the pixel-art style (16x16)
     pub cursors: Texture2D, // mouse pointer frames, 16x16 each (see CURSOR_*)
     pub badges: Texture2D, // achievement badges, 32x32 each (see badges.rs)
     pub font: Texture2D, // Dinowyde (glyphs of 6x8 px ordered by Unicode, see font_slot) and DINOBYTE
@@ -327,6 +329,24 @@ fn earth_px(x: i32, y: i32, v: u32) -> Color {
     shade(base, (big + fine) as i32)
 }
 
+// ---- furniture materials (crate::props::Mat order): grey detail the furniture's colours tint
+// (the page keeps its colours), 64x64 and 16x16; see art/generated/textures/materials/
+macro_rules! material {
+    ($name:literal) => {
+        (include_bytes!(concat!("../assets/textures/mat/", $name, "-64.png")) as &[u8], include_bytes!(concat!("../assets/textures/mat/", $name, "-16.png")) as &[u8])
+    };
+}
+const MATERIALS: [(&[u8], &[u8]); 8] = [
+    material!("wood"),
+    material!("stone"),
+    material!("iron"),
+    material!("cloth"),
+    material!("straw"),
+    material!("fur"),
+    material!("book"),
+    material!("paper"),
+];
+
 // ---- high-res tiles
 // The high-res style's atlases: the same cells as the 16x16 atlas, HD_TILE (64) or HD_TILE2 (128)
 // texels each; the world shows the 128 one close up, where a tile gets that many pixels (two
@@ -2664,7 +2684,14 @@ impl Gfx {
         atlas_hd2.set_filter(FilterMode::Nearest);
         let hd_sprites = Texture2D::from_image(&gen_hd_sprites());
         hd_sprites.set_filter(FilterMode::Nearest);
-        Gfx { atlas, sprites, hd_sprites, atlas_hd, atlas_hd2, cursors, badges, font, font_map }
+        let mat = |b: &[u8]| {
+            let t = Texture2D::from_file_with_format(b, Some(ImageFormat::Png));
+            t.set_filter(FilterMode::Nearest);
+            t
+        };
+        let materials = MATERIALS.map(|(hd, _)| mat(hd));
+        let materials_px = MATERIALS.map(|(_, px)| mat(px));
+        Gfx { atlas, sprites, hd_sprites, atlas_hd, atlas_hd2, materials, materials_px, cursors, badges, font, font_map }
     }
 
     pub fn cell(id: u32) -> Rect {

src/props.rs

@@ -37,6 +37,37 @@ fn cube(p: Vec3, s: Vec3, c: Color) {
     draw_cube(grown(p), s * k, None, c);
 }
 
+// the materials of the furniture: a texture of grey detail on every side of a box, tinted by its
+// colour (gfx MATERIALS, in this order; the page keeps its own colours)
+#[derive(Clone, Copy)]
+pub enum Mat {
+    Wood,
+    Stone,
+    Iron,
+    Cloth,
+    Straw,
+    Fur,
+    Book,
+    Paper,
+}
+
+thread_local! {
+    // the material textures of the current graphics style (set every frame, see set_materials)
+    static MATS: std::cell::RefCell<Option<[Texture2D; 8]>> = std::cell::RefCell::new(None);
+}
+
+pub fn set_materials(m: &[Texture2D; 8]) {
+    MATS.with(|t| *t.borrow_mut() = Some(m.clone()));
+}
+
+// a box of a material; the detail is a little darker than white, the colour makes up for it
+fn mc(m: Mat, p: Vec3, s: Vec3, c: Color) {
+    let k = GROW.with(|g| g.get()).map_or(1.0, |g| g.1);
+    let tex = MATS.with(|t| t.borrow().as_ref().map(|a| a[m as usize].clone()));
+    let c = if tex.is_some() { Color::new((c.r * 1.2).min(1.0), (c.g * 1.2).min(1.0), (c.b * 1.2).min(1.0), c.a) } else { c };
+    draw_cube(grown(p), s * k, tex.as_ref(), c);
+}
+
 fn line3(a: Vec3, b: Vec3, w: f32, c: Color) {
     let k = GROW.with(|g| g.get()).map_or(1.0, |g| g.1);
     crate::render3d::line3(grown(a), grown(b), w * k, c);
@@ -169,24 +200,24 @@ pub fn draw_props_solid(g: &Game, cam: &Cam, t: f32) {
             continue;
         }
         let post = vec3(e.disp_x.floor() + 0.5, 0.0, e.disp_y.floor() + 0.15);
-        cube(post + vec3(0.0, 0.35, 0.0), vec3(0.08, 0.7, 0.08), rgb(70, 70, 78, 0.6));
+        mc(Mat::Iron, post + vec3(0.0, 0.35, 0.0), vec3(0.08, 0.7, 0.08), rgb(70, 70, 78, 0.6));
         for n in 0..6 {
             let f = n as f32 / 6.0;
             let side = if n % 2 == 0 { 0.08 } else { -0.08 };
             let p = post.lerp(vec3(e.disp_x + side, 0.25, e.disp_y), f) + vec3(0.0, 0.3 * (1.0 - f) + 0.05 * (f * 3.14).sin(), 0.0);
-            cube(p, vec3(0.05, 0.05, 0.05), rgb(120, 120, 130, 0.6));
+            mc(Mat::Iron, p, vec3(0.05, 0.05, 0.05), rgb(120, 120, 130, 0.6));
         }
     }
 }
 
 // the dwarves' iron-bound chest with the rune forge plans (the rune glows in the glow pass)
 fn rune_chest(c: Vec3, l: f32) {
-    cube(c + vec3(0.0, 0.16, 0.0), vec3(0.5, 0.3, 0.34), rgb(92, 60, 34, l));
-    cube(c + vec3(0.0, 0.34, 0.0), vec3(0.52, 0.08, 0.36), rgb(110, 72, 40, l));
+    mc(Mat::Wood, c + vec3(0.0, 0.16, 0.0), vec3(0.5, 0.3, 0.34), rgb(92, 60, 34, l));
+    mc(Mat::Wood, c + vec3(0.0, 0.34, 0.0), vec3(0.52, 0.08, 0.36), rgb(110, 72, 40, l));
     for dx in [-0.18f32, 0.18] {
-        cube(c + vec3(dx, 0.2, 0.0), vec3(0.05, 0.4, 0.38), rgb(176, 112, 56, l));
+        mc(Mat::Wood, c + vec3(dx, 0.2, 0.0), vec3(0.05, 0.4, 0.38), rgb(176, 112, 56, l));
     }
-    cube(c + vec3(0.0, 0.22, 0.18), vec3(0.08, 0.1, 0.03), rgb(200, 170, 80, l));
+    mc(Mat::Iron, c + vec3(0.0, 0.22, 0.18), vec3(0.08, 0.1, 0.03), rgb(200, 170, 80, l));
 }
 
 // prison: iron bars along the edges of the room (cell walls)
@@ -201,41 +232,41 @@ fn prison_bars(g: &Game, x: i32, z: i32, c: Vec3, l: f32) {
         let side = vec3(dz as f32, 0.0, dx as f32);
         for k in 0..5 {
             let o = (k as f32 - 2.0) * 0.2;
-            cube(edge + side * o + vec3(0.0, 0.4, 0.0), vec3(0.04, 0.8, 0.04), iron);
+            mc(Mat::Iron, edge + side * o + vec3(0.0, 0.4, 0.0), vec3(0.04, 0.8, 0.04), iron);
         }
-        cube(edge + vec3(0.0, 0.78, 0.0), side * 1.0 + vec3(0.05, 0.04, 0.05), iron);
+        mc(Mat::Iron, edge + vec3(0.0, 0.78, 0.0), side * 1.0 + vec3(0.05, 0.04, 0.05), iron);
     }
 }
 
 fn tombstone(c: Vec3, h: u32, l: f32, size: f32) {
     let tilt = ((h >> 3) % 3) as f32 * 0.04 - 0.04;
-    cube(c + vec3(tilt, 0.2 * size, 0.0), vec3(0.24, 0.4, 0.08) * size, rgb(110, 108, 112, l));
-    cube(c + vec3(tilt, 0.42 * size, 0.0), vec3(0.16, 0.06, 0.08) * size, rgb(120, 118, 122, l));
-    cube(c + vec3(tilt, 0.28 * size, 0.045), vec3(0.06, 0.16, 0.01) * size, rgb(60, 58, 62, l));
+    mc(Mat::Stone, c + vec3(tilt, 0.2 * size, 0.0), vec3(0.24, 0.4, 0.08) * size, rgb(110, 108, 112, l));
+    mc(Mat::Stone, c + vec3(tilt, 0.42 * size, 0.0), vec3(0.16, 0.06, 0.08) * size, rgb(120, 118, 122, l));
+    mc(Mat::Stone, c + vec3(tilt, 0.28 * size, 0.045), vec3(0.06, 0.16, 0.01) * size, rgb(60, 58, 62, l));
 }
 
 // guard post: a brazier on a tripod (its fire glows in the glow pass) and a small banner
 fn guard_brazier(c: Vec3, l: f32) {
     for k in 0..3 {
         let a = k as f32 * 2.1;
-        cube(c + vec3(a.cos() * 0.12, 0.2, a.sin() * 0.12), vec3(0.04, 0.4, 0.04), rgb(60, 60, 66, l));
+        mc(Mat::Iron, c + vec3(a.cos() * 0.12, 0.2, a.sin() * 0.12), vec3(0.04, 0.4, 0.04), rgb(60, 60, 66, l));
     }
-    cube(c + vec3(0.0, 0.44, 0.0), vec3(0.3, 0.08, 0.3), rgb(70, 66, 70, l));
-    cube(c + vec3(0.35, 0.5, 0.0), vec3(0.03, 1.0, 0.03), rgb(90, 64, 40, l));
-    cube(c + vec3(0.45, 0.82, 0.0), vec3(0.2, 0.28, 0.02), rgb(150, 24, 30, l));
+    mc(Mat::Iron, c + vec3(0.0, 0.44, 0.0), vec3(0.3, 0.08, 0.3), rgb(70, 66, 70, l));
+    mc(Mat::Wood, c + vec3(0.35, 0.5, 0.0), vec3(0.03, 1.0, 0.03), rgb(90, 64, 40, l));
+    mc(Mat::Cloth, c + vec3(0.45, 0.82, 0.0), vec3(0.2, 0.28, 0.02), rgb(150, 24, 30, l));
 }
 
 // arena: a wooden post with a training weapon leaning against it
 fn arena_post(c: Vec3, h: u32, l: f32) {
     let o = vec3(((h >> 4) % 3) as f32 * 0.2 - 0.2, 0.0, ((h >> 6) % 3) as f32 * 0.2 - 0.2);
-    cube(c + o + vec3(0.0, 0.35, 0.0), vec3(0.1, 0.7, 0.1), rgb(110, 76, 44, l));
-    cube(c + o + vec3(0.12, 0.35, 0.0), vec3(0.03, 0.6, 0.03), rgb(150, 150, 160, l));
+    mc(Mat::Wood, c + o + vec3(0.0, 0.35, 0.0), vec3(0.1, 0.7, 0.1), rgb(110, 76, 44, l));
+    mc(Mat::Iron, c + o + vec3(0.12, 0.35, 0.0), vec3(0.03, 0.6, 0.03), rgb(150, 150, 160, l));
 }
 
 // sacrifice altar: a black block with a channel, candles at the corners (they glow)
 fn altar(c: Vec3, l: f32) {
-    cube(c + vec3(0.0, 0.08, 0.0), vec3(1.6, 0.16, 1.2), rgb(36, 30, 38, l));
-    cube(c + vec3(0.0, 0.32, 0.0), vec3(1.0, 0.32, 0.6), rgb(28, 24, 30, l));
+    mc(Mat::Stone, c + vec3(0.0, 0.08, 0.0), vec3(1.6, 0.16, 1.2), rgb(36, 30, 38, l));
+    mc(Mat::Stone, c + vec3(0.0, 0.32, 0.0), vec3(1.0, 0.32, 0.6), rgb(28, 24, 30, l));
     cube(c + vec3(0.0, 0.49, 0.0), vec3(0.8, 0.02, 0.1), rgb(90, 10, 20, l));
     for (dx, dz) in [(-0.7f32, -0.5f32), (0.7, -0.5), (0.7, 0.5), (-0.7, 0.5)] {
         cube(c + vec3(dx, 0.25, dz), vec3(0.06, 0.18, 0.06), rgb(220, 210, 190, l));
@@ -245,23 +276,23 @@ fn altar(c: Vec3, l: f32) {
 // forge: an anvil on a block, a hammer leaning against it
 fn anvil(c: Vec3, h: u32, l: f32) {
     let o = vec3(((h >> 3) % 3) as f32 * 0.08 - 0.08, 0.0, ((h >> 5) % 3) as f32 * 0.08 - 0.08);
-    cube(c + o + vec3(0.0, 0.12, 0.0), vec3(0.22, 0.24, 0.22), rgb(70, 50, 36, l));
-    cube(c + o + vec3(0.0, 0.28, 0.0), vec3(0.16, 0.08, 0.16), rgb(56, 56, 62, l));
-    cube(c + o + vec3(0.0, 0.35, 0.0), vec3(0.38, 0.06, 0.16), rgb(76, 76, 84, l));
-    cube(c + o + vec3(0.22, 0.35, 0.0), vec3(0.1, 0.04, 0.08), rgb(76, 76, 84, l));
+    mc(Mat::Wood, c + o + vec3(0.0, 0.12, 0.0), vec3(0.22, 0.24, 0.22), rgb(70, 50, 36, l));
+    mc(Mat::Iron, c + o + vec3(0.0, 0.28, 0.0), vec3(0.16, 0.08, 0.16), rgb(56, 56, 62, l));
+    mc(Mat::Iron, c + o + vec3(0.0, 0.35, 0.0), vec3(0.38, 0.06, 0.16), rgb(76, 76, 84, l));
+    mc(Mat::Iron, c + o + vec3(0.22, 0.35, 0.0), vec3(0.1, 0.04, 0.08), rgb(76, 76, 84, l));
 }
 
 // forge: a squat stone furnace (its fire glows in the glow pass)
 fn furnace(c: Vec3, l: f32) {
-    cube(c + vec3(0.0, 0.25, 0.0), vec3(0.6, 0.5, 0.6), rgb(64, 52, 50, l));
-    cube(c + vec3(0.0, 0.55, 0.0), vec3(0.4, 0.1, 0.4), rgb(50, 42, 40, l));
-    cube(c + vec3(0.0, 0.75, 0.0), vec3(0.16, 0.32, 0.16), rgb(44, 38, 38, l));
+    mc(Mat::Stone, c + vec3(0.0, 0.25, 0.0), vec3(0.6, 0.5, 0.6), rgb(64, 52, 50, l));
+    mc(Mat::Stone, c + vec3(0.0, 0.55, 0.0), vec3(0.4, 0.1, 0.4), rgb(50, 42, 40, l));
+    mc(Mat::Stone, c + vec3(0.0, 0.75, 0.0), vec3(0.16, 0.32, 0.16), rgb(44, 38, 38, l));
 }
 
 // a stone basin around a mana spring
 fn spring_basin(c: Vec3, l: f32) {
     for (dx, dz, sx, sz) in [(0.0, -0.38, 0.8, 0.1), (0.0, 0.38, 0.8, 0.1), (-0.38, 0.0, 0.1, 0.8), (0.38, 0.0, 0.1, 0.8)] {
-        cube(c + vec3(dx, 0.08, dz), vec3(sx, 0.16, sz), rgb(90, 95, 110, l));
+        mc(Mat::Stone, c + vec3(dx, 0.08, dz), vec3(sx, 0.16, sz), rgb(90, 95, 110, l));
     }
 }
 
@@ -398,18 +429,19 @@ fn chest(c: Vec3, h: u32, l: f32, fill: f32, res: u8) {
     let (ca, sa) = (rot.cos(), rot.sin());
     let at = |dx: f32, dz: f32, y: f32| c + vec3(dx * ca - dz * sa, y, dx * sa + dz * ca);
     let cube = |p: Vec3, s: Vec3, col: Color| cube(p, if q % 2 == 1 { vec3(s.z, s.y, s.x) } else { s }, col);
+    let mcube = |m: Mat, p: Vec3, s: Vec3, col: Color| mc(m, p, if q % 2 == 1 { vec3(s.z, s.y, s.x) } else { s }, col);
     let wood = rgb(110, 70, 36, l);
     let band = rgb(170, 140, 70, l);
-    cube(at(0.0, 0.0, 0.16), vec3(0.56, 0.32, 0.4), wood);
-    cube(at(0.0, 0.0, 0.16), vec3(0.58, 0.05, 0.42), band);
-    cube(at(0.0, 0.21, 0.18), vec3(0.08, 0.1, 0.02), band);
+    mcube(Mat::Wood, at(0.0, 0.0, 0.16), vec3(0.56, 0.32, 0.4), wood);
+    mcube(Mat::Iron, at(0.0, 0.0, 0.16), vec3(0.58, 0.05, 0.42), band);
+    mcube(Mat::Iron, at(0.0, 0.21, 0.18), vec3(0.08, 0.1, 0.02), band);
     let fill = fill.clamp(0.0, 1.0);
     if fill < 0.02 {
-        cube(at(0.0, 0.0, 0.36), vec3(0.58, 0.08, 0.42), wood);
+        mcube(Mat::Wood, at(0.0, 0.0, 0.36), vec3(0.58, 0.08, 0.42), wood);
         return;
     }
     // open lid leaning back
-    cube(at(0.0, -0.24, 0.5), vec3(0.58, 0.32, 0.06), wood);
+    mcube(Mat::Wood, at(0.0, -0.24, 0.5), vec3(0.58, 0.32, 0.06), wood);
     // content: the treasure kind decides the colour, the amount the height (heaped when full)
     let col = match res {
         1 => rgb(205, 210, 225, 1.0),
@@ -451,7 +483,7 @@ fn bed(kind: EK, c: Vec3, h: u32, l: f32, t: f32) {
             // straw pile
             for n in 0..7 {
                 let (dx, dz) = (((h >> (n * 3)) % 7) as f32 * 0.08 - 0.24, ((h >> (n * 2 + 1)) % 7) as f32 * 0.08 - 0.24);
-                cube(at(dx, dz, 0.04), vec3(0.28, 0.06, 0.12), rgb(200, 170, 70, l * (0.85 + (n % 3) as f32 * 0.08)));
+                mc(Mat::Straw, at(dx, dz, 0.04), vec3(0.28, 0.06, 0.12), rgb(200, 170, 70, l * (0.85 + (n % 3) as f32 * 0.08)));
             }
         }
         EK::Spider => {
@@ -478,81 +510,81 @@ fn bed(kind: EK, c: Vec3, h: u32, l: f32, t: f32) {
         }
         EK::Mage => {
             // cushion with a starry blanket
-            cube(at(0.0, 0.0, 0.06), vec3(0.62, 0.12, 0.5), rgb(70, 50, 120, l));
-            cube(at(0.0, 0.08, 0.13), vec3(0.6, 0.03, 0.34), rgb(40, 30, 90, l));
+            mc(Mat::Cloth, at(0.0, 0.0, 0.06), vec3(0.62, 0.12, 0.5), rgb(70, 50, 120, l));
+            mc(Mat::Cloth, at(0.0, 0.08, 0.13), vec3(0.6, 0.03, 0.34), rgb(40, 30, 90, l));
             for n in 0..4 {
                 let (dx, dz) = (((h >> (n * 4)) % 5) as f32 * 0.1 - 0.2, ((h >> (n * 4 + 2)) % 3) as f32 * 0.1 - 0.0);
                 cube(at(dx, dz, 0.15), vec3(0.04, 0.02, 0.04), rgb(240, 210, 90, 1.0));
             }
-            cube(at(0.0, -0.18, 0.15), vec3(0.3, 0.08, 0.14), rgb(200, 190, 220, l));
+            mc(Mat::Cloth, at(0.0, -0.18, 0.15), vec3(0.3, 0.08, 0.14), rgb(200, 190, 220, l));
         }
         EK::Ogre => {
             // heap of furs with a gnawed bone
             for n in 0..5 {
                 let a = n as f32 * 1.3 + rot;
-                cube(c + vec3(a.cos() * 0.15, 0.05 + (n % 2) as f32 * 0.04, a.sin() * 0.15), vec3(0.38, 0.1, 0.3), rgb(110 + (n * 12) as u8, 76, 44, l));
+                mc(Mat::Fur, c + vec3(a.cos() * 0.15, 0.05 + (n % 2) as f32 * 0.04, a.sin() * 0.15), vec3(0.38, 0.1, 0.3), rgb(110 + (n * 12) as u8, 76, 44, l));
             }
             cube(at(0.32, 0.2, 0.06), vec3(0.24, 0.04, 0.05), rgb(230, 220, 200, l));
         }
         EK::Jailer => {
             // plank bunk with chains
-            cube(at(0.0, 0.0, 0.12), vec3(0.72, 0.06, 0.4), rgb(90, 66, 44, l));
+            mc(Mat::Wood, at(0.0, 0.0, 0.12), vec3(0.72, 0.06, 0.4), rgb(90, 66, 44, l));
             for (dx, dz) in [(-0.3, -0.15), (0.3, -0.15), (-0.3, 0.15), (0.3, 0.15)] {
-                cube(at(dx, dz, 0.05), vec3(0.06, 0.1, 0.06), rgb(70, 50, 34, l));
+                mc(Mat::Wood, at(dx, dz, 0.05), vec3(0.06, 0.1, 0.06), rgb(70, 50, 34, l));
             }
             for n in 0..6 {
-                cube(at(-0.3 + n as f32 * 0.12, 0.24, 0.03 + (n % 2) as f32 * 0.02), vec3(0.08, 0.03, 0.04), rgb(120, 120, 130, l));
+                mc(Mat::Iron, at(-0.3 + n as f32 * 0.12, 0.24, 0.03 + (n % 2) as f32 * 0.02), vec3(0.08, 0.03, 0.04), rgb(120, 120, 130, l));
             }
         }
         EK::Priestess => {
             // ember cushion (glowing coals in the glow pass)
-            cube(at(0.0, 0.0, 0.05), vec3(0.6, 0.1, 0.48), rgb(150, 40, 30, l));
-            cube(at(0.0, 0.0, 0.11), vec3(0.4, 0.03, 0.3), rgb(220, 110, 40, l));
+            mc(Mat::Cloth, at(0.0, 0.0, 0.05), vec3(0.6, 0.1, 0.48), rgb(150, 40, 30, l));
+            mc(Mat::Cloth, at(0.0, 0.0, 0.11), vec3(0.4, 0.03, 0.3), rgb(220, 110, 40, l));
         }
         EK::Bat => {
             // roost: a beam between two posts to hang from
             for side in [-0.32f32, 0.32] {
-                cube(at(side, 0.0, 0.45), vec3(0.06, 0.9, 0.06), rgb(90, 64, 40, l));
+                mc(Mat::Wood, at(side, 0.0, 0.45), vec3(0.06, 0.9, 0.06), rgb(90, 64, 40, l));
             }
-            cube(at(0.0, 0.0, 0.88), vec3(0.72, 0.06, 0.06), rgb(110, 78, 48, l));
+            mc(Mat::Wood, at(0.0, 0.0, 0.88), vec3(0.72, 0.06, 0.06), rgb(110, 78, 48, l));
         }
         EK::Gargoyle => {
             // stone plinth to sit on
-            cube(at(0.0, 0.0, 0.2), vec3(0.5, 0.4, 0.5), rgb(110, 110, 118, l));
-            cube(at(0.0, 0.0, 0.42), vec3(0.58, 0.06, 0.58), rgb(130, 130, 138, l));
+            mc(Mat::Stone, at(0.0, 0.0, 0.2), vec3(0.5, 0.4, 0.5), rgb(110, 110, 118, l));
+            mc(Mat::Stone, at(0.0, 0.0, 0.42), vec3(0.58, 0.06, 0.58), rgb(130, 130, 138, l));
         }
         EK::Owl => {
             // twig nest on a post
-            cube(at(0.0, 0.0, 0.3), vec3(0.08, 0.6, 0.08), rgb(90, 64, 40, l));
+            mc(Mat::Wood, at(0.0, 0.0, 0.3), vec3(0.08, 0.6, 0.08), rgb(90, 64, 40, l));
             for n in 0..6 {
                 let a = n as f32 * 1.05 + rot;
-                cube(c + vec3(a.cos() * 0.16, 0.62, a.sin() * 0.16), vec3(0.16, 0.06, 0.05), rgb(110 + (n * 6) as u8, 80, 44, l));
+                mc(Mat::Wood, c + vec3(a.cos() * 0.16, 0.62, a.sin() * 0.16), vec3(0.16, 0.06, 0.05), rgb(110 + (n * 6) as u8, 80, 44, l));
             }
         }
         EK::Wyrm => {
             // a big nest of dark rocks (the embers glow in the glow pass)
             for n in 0..9 {
                 let a = n as f32 * 0.7 + rot;
-                cube(c + vec3(a.cos() * 0.42, 0.09, a.sin() * 0.42), vec3(0.2, 0.18 + (n % 3) as f32 * 0.04, 0.2), rgb(60, 44, 44, l));
+                mc(Mat::Stone, c + vec3(a.cos() * 0.42, 0.09, a.sin() * 0.42), vec3(0.2, 0.18 + (n % 3) as f32 * 0.04, 0.2), rgb(60, 44, 44, l));
             }
         }
         EK::Chainbreaker => {
             // a hollow of broken rocks and a burst chain
             for n in 0..7 {
                 let a = n as f32 * 0.9 + rot;
-                cube(c + vec3(a.cos() * 0.36, 0.08, a.sin() * 0.36), vec3(0.18, 0.16 + (n % 3) as f32 * 0.05, 0.18), rgb(90, 86, 92, l * (0.8 + (n % 2) as f32 * 0.2)));
+                mc(Mat::Stone, c + vec3(a.cos() * 0.36, 0.08, a.sin() * 0.36), vec3(0.18, 0.16 + (n % 3) as f32 * 0.05, 0.18), rgb(90, 86, 92, l * (0.8 + (n % 2) as f32 * 0.2)));
             }
             for n in 0..3 {
-                cube(at(-0.1 + n as f32 * 0.1, 0.05, 0.03), vec3(0.08, 0.03, 0.04), rgb(130, 130, 140, l));
+                mc(Mat::Iron, at(-0.1 + n as f32 * 0.1, 0.05, 0.03), vec3(0.08, 0.03, 0.04), rgb(130, 130, 140, l));
             }
         }
         _ => {
             // defected heroes: a proper camp bed with a white sheet
-            cube(at(0.0, 0.0, 0.14), vec3(0.42, 0.05, 0.78), rgb(120, 86, 52, l));
-            cube(at(0.0, 0.05, 0.18), vec3(0.38, 0.04, 0.5), rgb(220, 220, 228, l));
-            cube(at(0.0, -0.28, 0.2), vec3(0.3, 0.06, 0.14), rgb(240, 240, 245, l));
+            mc(Mat::Wood, at(0.0, 0.0, 0.14), vec3(0.42, 0.05, 0.78), rgb(120, 86, 52, l));
+            mc(Mat::Cloth, at(0.0, 0.05, 0.18), vec3(0.38, 0.04, 0.5), rgb(220, 220, 228, l));
+            mc(Mat::Cloth, at(0.0, -0.28, 0.2), vec3(0.3, 0.06, 0.14), rgb(240, 240, 245, l));
             for (dx, dz) in [(-0.18, -0.35), (0.18, -0.35), (-0.18, 0.35), (0.18, 0.35)] {
-                cube(at(dx, dz, 0.06), vec3(0.05, 0.12, 0.05), rgb(100, 70, 44, l));
+                mc(Mat::Wood, at(dx, dz, 0.06), vec3(0.05, 0.12, 0.05), rgb(100, 70, 44, l));
             }
         }
     }
@@ -562,8 +594,8 @@ fn bed(kind: EK, c: Vec3, h: u32, l: f32, t: f32) {
 // an empty perch in the aerie: post with a crossbar
 fn perch(c: Vec3, h: u32, l: f32) {
     let dx = ((h >> 4) % 3) as f32 * 0.12 - 0.12;
-    cube(c + vec3(dx, 0.35, 0.0), vec3(0.06, 0.7, 0.06), rgb(96, 68, 42, l));
-    cube(c + vec3(dx, 0.68, 0.0), vec3(0.4, 0.05, 0.05), rgb(110, 78, 48, l));
+    mc(Mat::Wood, c + vec3(dx, 0.35, 0.0), vec3(0.06, 0.7, 0.06), rgb(96, 68, 42, l));
+    mc(Mat::Wood, c + vec3(dx, 0.68, 0.0), vec3(0.4, 0.05, 0.05), rgb(110, 78, 48, l));
 }
 
 // ---------------------------------------------------------------- training hall
@@ -573,28 +605,28 @@ fn training(c: Vec3, h: u32, l: f32, t: f32, busy: bool) {
         0 => {
             // spinning dummy: post, straw body, two arms
             let spin = if busy { t * 6.0 } else { (h % 7) as f32 };
-            cube(c + vec3(0.0, 0.35, 0.0), vec3(0.08, 0.7, 0.08), rgb(100, 70, 44, l));
-            cube(c + vec3(0.0, 0.5, 0.0), vec3(0.2, 0.28, 0.2), rgb(200, 170, 100, l));
-            cube(c + vec3(0.0, 0.72, 0.0), vec3(0.14, 0.14, 0.14), rgb(210, 180, 120, l));
+            mc(Mat::Wood, c + vec3(0.0, 0.35, 0.0), vec3(0.08, 0.7, 0.08), rgb(100, 70, 44, l));
+            mc(Mat::Straw, c + vec3(0.0, 0.5, 0.0), vec3(0.2, 0.28, 0.2), rgb(200, 170, 100, l));
+            mc(Mat::Straw, c + vec3(0.0, 0.72, 0.0), vec3(0.14, 0.14, 0.14), rgb(210, 180, 120, l));
             let (ax, az) = (spin.cos() * 0.3, spin.sin() * 0.3);
             line3(c + vec3(-ax, 0.58, -az), c + vec3(ax, 0.58, az), 0.06, rgb(120, 84, 50, l));
-            cube(c + vec3(0.0, 0.03, 0.0), vec3(0.34, 0.06, 0.34), rgb(80, 56, 36, l));
+            mc(Mat::Wood, c + vec3(0.0, 0.03, 0.0), vec3(0.34, 0.06, 0.34), rgb(80, 56, 36, l));
         }
         1 => {
             // weapon rack: frame with swords and an axe
-            cube(c + vec3(-0.3, 0.3, 0.0), vec3(0.06, 0.6, 0.06), rgb(100, 70, 44, l));
-            cube(c + vec3(0.3, 0.3, 0.0), vec3(0.06, 0.6, 0.06), rgb(100, 70, 44, l));
-            cube(c + vec3(0.0, 0.56, 0.0), vec3(0.66, 0.05, 0.08), rgb(110, 78, 48, l));
+            mc(Mat::Wood, c + vec3(-0.3, 0.3, 0.0), vec3(0.06, 0.6, 0.06), rgb(100, 70, 44, l));
+            mc(Mat::Wood, c + vec3(0.3, 0.3, 0.0), vec3(0.06, 0.6, 0.06), rgb(100, 70, 44, l));
+            mc(Mat::Wood, c + vec3(0.0, 0.56, 0.0), vec3(0.66, 0.05, 0.08), rgb(110, 78, 48, l));
             for n in 0..3 {
                 let x = -0.15 + n as f32 * 0.15;
-                cube(c + vec3(x, 0.3, 0.03), vec3(0.03, 0.46, 0.02), rgb(190, 195, 205, l));
-                cube(c + vec3(x, 0.12, 0.03), vec3(0.1, 0.02, 0.03), rgb(110, 80, 40, l));
+                mc(Mat::Iron, c + vec3(x, 0.3, 0.03), vec3(0.03, 0.46, 0.02), rgb(190, 195, 205, l));
+                mc(Mat::Wood, c + vec3(x, 0.12, 0.03), vec3(0.1, 0.02, 0.03), rgb(110, 80, 40, l));
             }
         }
         _ => {
             // target board on a stand, wobbling when hit
             let wob = if busy { (t * 14.0).sin() * 0.05 } else { 0.0 };
-            cube(c + vec3(0.0, 0.25, 0.1), vec3(0.06, 0.5, 0.06), rgb(100, 70, 44, l));
+            mc(Mat::Wood, c + vec3(0.0, 0.25, 0.1), vec3(0.06, 0.5, 0.06), rgb(100, 70, 44, l));
             let p = c + vec3(wob, 0.55, 0.0);
             for (k, (s, col)) in [(0.5, rgb(230, 225, 210, l)), (0.36, rgb(200, 40, 40, l)), (0.22, rgb(230, 225, 210, l)), (0.1, rgb(200, 40, 40, l))].iter().enumerate() {
                 cube(p - vec3(0.0, 0.0, k as f32 * 0.01), vec3(*s, *s, 0.04), *col);
@@ -611,8 +643,8 @@ fn torture(c: Vec3, h: u32, l: f32, t: f32, busy: bool) {
             // the wheel turns while a prisoner is on it
             let a0 = if busy { t * 1.5 } else { 0.3 };
             let hub = c + vec3(0.0, 0.5, 0.0);
-            cube(c + vec3(-0.28, 0.25, 0.0), vec3(0.06, 0.5, 0.06), rgb(80, 56, 36, l));
-            cube(c + vec3(0.28, 0.25, 0.0), vec3(0.06, 0.5, 0.06), rgb(80, 56, 36, l));
+            mc(Mat::Wood, c + vec3(-0.28, 0.25, 0.0), vec3(0.06, 0.5, 0.06), rgb(80, 56, 36, l));
+            mc(Mat::Wood, c + vec3(0.28, 0.25, 0.0), vec3(0.06, 0.5, 0.06), rgb(80, 56, 36, l));
             let col = rgb(120, 84, 50, l);
             for n in 0..8 {
                 let a = a0 + n as f32 * std::f32::consts::FRAC_PI_4;
@@ -621,15 +653,15 @@ fn torture(c: Vec3, h: u32, l: f32, t: f32, busy: bool) {
                 line3(hub, p(a), 0.03, col);
                 line3(p(a), p(b), 0.05, col);
             }
-            cube(hub, vec3(0.62, 0.06, 0.06), rgb(90, 90, 100, l));
+            mc(Mat::Iron, hub, vec3(0.62, 0.06, 0.06), rgb(90, 90, 100, l));
         }
         1 => {
             // iron maiden, slightly open
-            cube(c + vec3(0.0, 0.42, 0.06), vec3(0.4, 0.84, 0.2), rgb(70, 70, 80, l));
-            cube(c + vec3(0.0, 0.78, 0.06), vec3(0.3, 0.12, 0.2), rgb(90, 90, 100, l));
-            cube(c + vec3(-0.12, 0.42, -0.14), vec3(0.18, 0.8, 0.04), rgb(80, 80, 92, l));
+            mc(Mat::Iron, c + vec3(0.0, 0.42, 0.06), vec3(0.4, 0.84, 0.2), rgb(70, 70, 80, l));
+            mc(Mat::Iron, c + vec3(0.0, 0.78, 0.06), vec3(0.3, 0.12, 0.2), rgb(90, 90, 100, l));
+            mc(Mat::Iron, c + vec3(-0.12, 0.42, -0.14), vec3(0.18, 0.8, 0.04), rgb(80, 80, 92, l));
             for n in 0..4 {
-                cube(c + vec3(0.08, 0.2 + n as f32 * 0.16, -0.06), vec3(0.03, 0.03, 0.12), rgb(170, 170, 180, l));
+                mc(Mat::Iron, c + vec3(0.08, 0.2 + n as f32 * 0.16, -0.06), vec3(0.03, 0.03, 0.12), rgb(170, 170, 180, l));
             }
             cube(c + vec3(0.0, 0.5, 0.17), vec3(0.08, 0.08, 0.02), rgb(160, 40, 40, l));
         }
@@ -639,7 +671,7 @@ fn torture(c: Vec3, h: u32, l: f32, t: f32, busy: bool) {
                 let a = n as f32 * 2.094;
                 line3(c + vec3(a.cos() * 0.2, 0.0, a.sin() * 0.2), c + vec3(a.cos() * 0.08, 0.45, a.sin() * 0.08), 0.03, rgb(60, 60, 66, l));
             }
-            cube(c + vec3(0.0, 0.5, 0.0), vec3(0.32, 0.08, 0.32), rgb(50, 46, 46, l));
+            mc(Mat::Iron, c + vec3(0.0, 0.5, 0.0), vec3(0.32, 0.08, 0.32), rgb(50, 46, 46, l));
             line3(c + vec3(0.05, 0.52, 0.0), c + vec3(0.3, 0.8, 0.1), 0.02, rgb(120, 120, 130, l));
         }
     }
@@ -649,39 +681,39 @@ fn torture(c: Vec3, h: u32, l: f32, t: f32, busy: bool) {
 
 fn temple(c: Vec3, h: u32, l: f32) {
     // altar: stone block, red cloth, two candles (flames in the glow pass), a fire bowl behind
-    cube(c + vec3(0.0, 0.22, -0.1), vec3(0.9, 0.44, 0.42), rgb(70, 56, 72, l));
-    cube(c + vec3(0.0, 0.45, -0.1), vec3(0.94, 0.04, 0.46), rgb(90, 74, 92, l));
-    cube(c + vec3(0.0, 0.3, 0.12), vec3(0.4, 0.3, 0.02), rgb(160, 40, 40, l));
+    mc(Mat::Stone, c + vec3(0.0, 0.22, -0.1), vec3(0.9, 0.44, 0.42), rgb(70, 56, 72, l));
+    mc(Mat::Stone, c + vec3(0.0, 0.45, -0.1), vec3(0.94, 0.04, 0.46), rgb(90, 74, 92, l));
+    mc(Mat::Cloth, c + vec3(0.0, 0.3, 0.12), vec3(0.4, 0.3, 0.02), rgb(160, 40, 40, l));
     cube(c + vec3(0.0, 0.3, 0.13), vec3(0.08, 0.08, 0.01), rgb(230, 190, 80, 1.0));
     for n in [-0.32f32, 0.32] {
         cube(c + vec3(n, 0.56, -0.18), vec3(0.05, 0.18, 0.05), rgb(230, 220, 200, l));
     }
-    cube(c + vec3(0.0, 0.3, 0.15), vec3(0.1, 0.6, 0.1), rgb(60, 50, 62, l));
-    cube(c + vec3(0.0, 0.58, 0.15), vec3(0.24, 0.06, 0.24), rgb(90, 70, 40, l));
+    mc(Mat::Stone, c + vec3(0.0, 0.3, 0.15), vec3(0.1, 0.6, 0.1), rgb(60, 50, 62, l));
+    mc(Mat::Iron, c + vec3(0.0, 0.58, 0.15), vec3(0.24, 0.06, 0.24), rgb(90, 70, 40, l));
     let _ = h;
 }
 
 fn candle_stand(c: Vec3, l: f32) {
-    cube(c + vec3(0.0, 0.2, 0.0), vec3(0.04, 0.4, 0.04), rgb(150, 120, 60, l));
-    cube(c + vec3(0.0, 0.02, 0.0), vec3(0.14, 0.04, 0.14), rgb(150, 120, 60, l));
+    mc(Mat::Iron, c + vec3(0.0, 0.2, 0.0), vec3(0.04, 0.4, 0.04), rgb(150, 120, 60, l));
+    mc(Mat::Iron, c + vec3(0.0, 0.02, 0.0), vec3(0.14, 0.04, 0.14), rgb(150, 120, 60, l));
     cube(c + vec3(0.0, 0.45, 0.0), vec3(0.05, 0.1, 0.05), rgb(230, 220, 200, l));
 }
 
 // ---------------------------------------------------------------- library
 
 fn shelf(c: Vec3, h: u32, l: f32) {
-    cube(c + vec3(0.0, 0.45, 0.0), vec3(0.86, 0.9, 0.3), rgb(70, 44, 28, l));
+    mc(Mat::Wood, c + vec3(0.0, 0.45, 0.0), vec3(0.86, 0.9, 0.3), rgb(70, 44, 28, l));
     let colors = [(150, 40, 40), (40, 80, 140), (60, 120, 60), (160, 130, 50), (100, 60, 120), (180, 170, 150)];
     for row in 0..3 {
         let y = 0.18 + row as f32 * 0.28;
-        cube(c + vec3(0.0, y - 0.1, 0.0), vec3(0.8, 0.03, 0.32), rgb(90, 60, 38, l));
+        mc(Mat::Wood, c + vec3(0.0, y - 0.1, 0.0), vec3(0.8, 0.03, 0.32), rgb(90, 60, 38, l));
         let mut x = -0.36;
         let mut n = 0;
         while x < 0.34 {
             let w = 0.05 + ((h >> ((n + row * 5) % 24)) % 3) as f32 * 0.02;
             let (r, gg, b) = colors[(hash(n, row, h) % 6) as usize];
             let ht = 0.16 + ((h >> (n % 20)) % 3) as f32 * 0.025;
-            cube(c + vec3(x + w * 0.5, y - 0.08 + ht * 0.5, -0.02), vec3(w * 0.9, ht, 0.24), rgb(r, gg, b, l));
+            mc(Mat::Book, c + vec3(x + w * 0.5, y - 0.08 + ht * 0.5, -0.02), vec3(w * 0.9, ht, 0.24), rgb(r, gg, b, l));
             x += w;
             n += 1;
         }
@@ -689,9 +721,9 @@ fn shelf(c: Vec3, h: u32, l: f32) {
 }
 
 fn lectern(c: Vec3, l: f32) {
-    cube(c + vec3(0.0, 0.3, 0.0), vec3(0.1, 0.6, 0.1), rgb(90, 60, 38, l));
-    cube(c + vec3(0.0, 0.62, 0.0), vec3(0.42, 0.04, 0.3), rgb(110, 74, 46, l));
-    cube(c + vec3(0.0, 0.66, 0.0), vec3(0.3, 0.02, 0.2), rgb(230, 222, 200, l));
+    mc(Mat::Wood, c + vec3(0.0, 0.3, 0.0), vec3(0.1, 0.6, 0.1), rgb(90, 60, 38, l));
+    mc(Mat::Wood, c + vec3(0.0, 0.62, 0.0), vec3(0.42, 0.04, 0.3), rgb(110, 74, 46, l));
+    mc(Mat::Paper, c + vec3(0.0, 0.66, 0.0), vec3(0.3, 0.02, 0.2), rgb(230, 222, 200, l));
     cube(c + vec3(0.0, 0.67, 0.0), vec3(0.01, 0.02, 0.2), rgb(120, 40, 40, l));
     disc(c + vec3(0.0, 0.01, 0.0), 0.25, Color::new(0.0, 0.0, 0.0, 0.25), 12);
 }

src/render3d.rs

@@ -1643,6 +1643,8 @@ impl R3d {
         }
         draw_landmarks_solid(g, t);
         draw_towers_solid(g);
+        // the furniture's materials in the graphics style's resolution
+        crate::props::set_materials(if self.chunks_hd { &gfx.materials } else { &gfx.materials_px });
         crate::props::draw_props_solid(g, cam, t);
         draw_parts_solid(g);
         draw_traps_solid(g, t);

tools/make_material.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+"""Turn a generated material picture into a texture for the furniture (props.rs): cropped,
+optionally turned into grey detail (the furniture's colours tint it in the game), brightened to
+a common mean and scaled to the high-res size and the pixel-art size.
+
+Usage:
+  make_material.py raw.png out_prefix [--crop x0,y0,x1,y1] [--trim] [--color] [--mean 0.8]
+
+--crop   fractions of the picture to keep
+--trim   crop to the picture's object (everything that is not near-white background)
+--color  keep the colours (else grey detail)
+--mean   mean brightness of the result (0..1)
+
+Writes out_prefix-64.png and out_prefix-16.png. Needs Pillow.
+"""
+import argparse
+
+from PIL import Image, ImageOps, ImageStat
+
+
+def main():
+    ap = argparse.ArgumentParser()
+    ap.add_argument("raw")
+    ap.add_argument("out")
+    ap.add_argument("--crop", default=None)
+    ap.add_argument("--trim", action="store_true")
+    ap.add_argument("--color", action="store_true")
+    ap.add_argument("--mean", type=float, default=0.8)
+    a = ap.parse_args()
+
+    img = Image.open(a.raw).convert("RGB")
+    if a.crop:
+        f = [float(v) for v in a.crop.split(",")]
+        img = img.crop((int(f[0] * img.width), int(f[1] * img.height), int(f[2] * img.width), int(f[3] * img.height)))
+    if a.trim:
+        # the object: everything darker than the white background, a few pixels in
+        mask = img.convert("L").point(lambda v: 255 if v < 235 else 0)
+        box = mask.getbbox()
+        if box:
+            img = img.crop((box[0] + 4, box[1] + 4, box[2] - 4, box[3] - 4))
+    if not a.color:
+        img = ImageOps.grayscale(img).convert("RGB")
+    mean = ImageStat.Stat(img.convert("L")).mean[0] / 255
+    k = a.mean / max(mean, 0.01)
+    img = img.point(lambda v: min(255, int(v * k)))
+    img.resize((64, 64), Image.LANCZOS).save(f"{a.out}-64.png")
+    small = img.resize((16, 16), Image.BOX)
+    small.quantize(colors=8, method=Image.Quantize.MEDIANCUT, dither=Image.Dither.NONE).convert("RGB").save(f"{a.out}-16.png")
+    print(f"{a.out}-64.png, {a.out}-16.png")
+
+
+if __name__ == "__main__":
+    main()