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← Asian3D assetfogon/abanico-gigante

Abanico gigante

by fogonCC04037 blocks
Abanico giganteDrag to turn it
// «Abanico gigante» · gpt-6-sol (medium)
// A big open Japanese folding fan standing upright on a small stand: a half-circle of red paper with a white Mount Fuji and a gold sun painted on it, dark wooden ribs fanning out from the bottom pivot.

const cx = 24;
const pivotZ = 14;
const minAngle = 9 * Math.PI / 180;
const maxAngle = 171 * Math.PI / 180;

function onFan(x, z) {
  const dx = x - cx;
  const dz = z - pivotZ;
  const radius = Math.hypot(dx, dz);
  const angle = Math.atan2(dz, dx);
  return radius >= 2.5 && radius <= 22 &&
    angle >= minAngle && angle <= maxAngle;
}

// Low lacquered display stand.
box(15, 17, 0, 33, 30, 1, "#541f22");
box(16, 16, 1, 32, 29, 2, "#8c2c2c");
box(17, 16, 2, 31, 17, 2, "#e5ae51");
box(18, 18, 3, 30, 28, 3, "#402427");
box(19, 19, 3, 20, 23, 12, "#412728");
box(28, 19, 3, 29, 23, 12, "#412728");
box(19, 18, 5, 29, 20, 6, "#752b2b");
box(20, 17, 6, 28, 17, 6, "#e5ae51");
box(20, 20, 10, 28, 23, 11, "#591e24");
box(21, 19, 11, 27, 22, 12, "#dca449");

// Solid paper, shaded in alternating folds.
for (let x = 2; x <= 46; x++) {
  for (let z = 14; z <= 36; z++) {
    if (!onFan(x, z)) continue;

    const radius = Math.hypot(x - cx, z - pivotZ);
    const angle = Math.atan2(z - pivotZ, x - cx);
    const fold = Math.floor((angle - minAngle) / (Math.PI / 12));
    let color = fold % 2 ? "#b82732" : "#a71928";

    if (rand() < 0.07) color = fold % 2 ? "#c7373e" : "#951b29";
    if (radius > 20.8) color = "#dfaa50";
    else if (radius > 19.9) color = "#76212a";

    set(x, 19, z, color);
    set(x, 20, z, "#8d202a");
    set(x, 21, z, "#642129");
  }
}

// Dark wooden ribs radiating from the pivot.
for (let degrees = 12; degrees <= 168; degrees += 13) {
  const angle = degrees * Math.PI / 180;
  for (let radius = 3; radius <= 21; radius += 0.4) {
    const x = Math.round(cx + Math.cos(angle) * radius);
    const z = Math.round(pivotZ + Math.sin(angle) * radius);
    if (onFan(x, z)) {
      set(x, 18, z, radius > 18 ? "#9b5838" : "#382729");
    }
  }
}

// Raised gold edging along the curved rim.
for (let x = 2; x <= 46; x++) {
  for (let z = 14; z <= 36; z++) {
    if (!onFan(x, z)) continue;
    const radius = Math.hypot(x - cx, z - pivotZ);
    const angle = Math.atan2(z - pivotZ, x - cx);
    if (radius > 21.25 ||
        angle < minAngle + 0.035 ||
        angle > maxAngle - 0.035) {
      set(x, 17, z, "#ecc063");
    }
  }
}

// Golden sun, painted on the right side.
for (let x = 29; x <= 39; x++) {
  for (let z = 24; z <= 34; z++) {
    const distance = Math.hypot(x - 34, z - 29);
    if (!onFan(x, z) || distance > 4.25) continue;
    const color = distance > 3.35 ? "#f3c363" :
      distance < 2.1 ? "#ffdf83" : "#e8a644";
    set(x, 17, z, color);
  }
}

// Mount Fuji, with a broad blue-grey base and snowy summit.
for (let z = 17; z <= 32; z++) {
  for (let x = 8; x <= 38; x++) {
    const halfWidth = (32 - z) * 1.35 + 0.6;
    const dx = x - 22;
    if (!onFan(x, z) || Math.abs(dx) > halfWidth) continue;

    let color = dx > 1 ? "#687e87" : "#91a1a2";
    if (z >= 23 || (z >= 21 && Math.abs(dx) < (z - 19) * 1.3)) {
      color = "#f6f0e3";
    }
    if (z >= 27 && dx >= -5 && dx < -1) color = "#d5dfe2";
    if (z === 32) color = "#ffffff";
    set(x, 17, z, color);
  }
}

line(21, 17, 29, 17, 17, 23, 0, "#fff8ed");
line(24, 17, 29, 28, 17, 24, 0, "#fff8ed");
line(19, 17, 27, 15, 17, 22, 0, "#e7edef");

// Small gold cloud strokes.
for (const cloud of [[8, 27], [37, 22]]) {
  for (let i = 0; i < 8; i++) {
    const x = cloud[0] + i;
    const z = cloud[1] + Math.round(Math.sin(i * 0.8));
    if (onFan(x, z) && get(x, 17, z) === undefined) {
      set(x, 17, z, i % 3 === 0 ? "#ffebb0" : "#e8b758");
    }
  }
}

// Layered lacquer-and-gold pivot clasp.
cylinder(24, 16, 14, 2.7, 2, "#552126");
cylinder(24, 15, 14, 1.5, 1, "#e9b753");
set(24, 14, 15, "#fff0bc");