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2026-08-03 10:29:31 +08:00
parent 878468cd6d
commit a338865025
20 changed files with 613 additions and 398 deletions
@@ -1,138 +0,0 @@
-// 程序化生成简化人体化身 GLB（脸型/体型/肤色三参数组合）。
-// 用法: node gen-templates.js --out <dir> [--faces 6] [--bodies 6] [--skins 5]
-// 索引对齐 MatchTemplates：face 0 起、body/skin 1 起；已存在的 GLB 跳过（幂等）。
-import { argv } from 'node:process';
-import fs from 'node:fs';
-import path from 'node:path';
-import * as THREE from 'three';
-import { GLTFExporter } from 'three/addons/exporters/GLTFExporter.js';
-
-// Node 无 FileReader，GLTFExporter 二进制导出需要它（onloadend 回调风格）
-if (typeof globalThis.FileReader === 'undefined') {
-  globalThis.FileReader = class {
-    constructor() { this.result = null; }
-    set onloadend(fn) { this._onloadend = fn; }
-    get onloadend() { return this._onloadend; }
-    readAsArrayBuffer(blob) {
-      blob.arrayBuffer().then((buf) => {
-        this.result = buf;
-        this._onloadend && this._onloadend();
-      });
-    }
-  };
-}
-
-function parseArgs() {
-  const a = { faces: 6, bodies: 6, skins: 5 };
-  for (let i = 2; i < argv.length; i++) {
-    if (argv[i].startsWith('--')) {
-      const key = argv[i].slice(2);
-      const val = argv[i + 1] !== undefined && !argv[i + 1].startsWith('--') ? argv[++i] : true;
-      a[key] = val;
-    }
-  }
-  a.out = a.out || '.';
-  return a;
-}
-
-// 5 档肤色（PBR base color）
-const SKIN_TONES = ['#FDE4CF', '#F3C39B', '#D99B6C', '#A96B3F', '#6B4226'];
-
-// 脸型变体：发型形状/颜色差异
-const FACE_HAIR = [
-  { style: 'short', color: '#2B2B2B' },   // 短发
-  { style: 'fringe', color: '#4A3728' },  // 刘海长发
-  { style: 'bob', color: '#8C5A2B' },     // 波波头
-];
-
-// 体型变体：宽度/高度比例
-const BODY_VARIANTS = [
-  { name: 'slim', width: 0.85, height: 1.0 },
-  { name: 'normal', width: 1.0, height: 1.0 },
-  { name: 'broad', width: 1.18, height: 0.96 },
-];
-
-function buildAvatar(faceIdx, bodyIdx, skinIdx) {
-  const face = FACE_HAIR[faceIdx % FACE_HAIR.length];
-  const body = BODY_VARIANTS[bodyIdx % BODY_VARIANTS.length];
-  const skin = SKIN_TONES[skinIdx % SKIN_TONES.length];
-
-  const root = new THREE.Group();
-  const skinMat = new THREE.MeshStandardMaterial({ color: skin, roughness: 0.7 });
-  const hairMat = new THREE.MeshStandardMaterial({ color: face.color, roughness: 0.85 });
-  const clothMat = new THREE.MeshStandardMaterial({ color: '#3D5A80', roughness: 0.8 });
-
-  const W = body.width;
-  const H = body.height;
-
-  // 躯干：胶囊体
-  const torso = new THREE.Mesh(new THREE.CapsuleGeometry(0.22 * W, 0.5, 8, 16), clothMat);
-  torso.position.y = 1.12 * H;
-  root.add(torso);
-
-  // 头：球体
-  const head = new THREE.Mesh(new THREE.SphereGeometry(0.16 * W, 24, 18), skinMat);
-  head.position.y = 1.68 * H;
-  root.add(head);
-
-  // 发型：覆盖头顶的半球壳（按脸型变体）
-  const hair = new THREE.Mesh(new THREE.SphereGeometry(0.175 * W, 24, 12, 0, Math.PI * 2, 0, Math.PI * 0.52), hairMat);
-  hair.position.y = 1.68 * H + 0.03;
-  root.add(hair);
-  if (face.style === 'fringe') {
-    const fringe = new THREE.Mesh(new THREE.BoxGeometry(0.16 * W, 0.05, 0.2 * W), hairMat);
-    fringe.position.y = 1.7 * H;
-    fringe.position.z = -0.12 * W;
-    fringe.rotation.x = -0.25;
-    root.add(fringe);
-  } else if (face.style === 'bob') {
-    const back = new THREE.Mesh(new THREE.BoxGeometry(0.3 * W, 0.3, 0.06), hairMat);
-    back.position.y = 1.52 * H;
-    back.position.z = 0.14 * W;
-    root.add(back);
-  }
-
-  // 上肢
-  for (const side of [-1, 1]) {
-    const arm = new THREE.Mesh(new THREE.CapsuleGeometry(0.075 * W, 0.42, 6, 10), skinMat);
-    arm.position.set(side * 0.32 * W, 1.32 * H, 0);
-    arm.rotation.z = side * 0.06;
-    root.add(arm);
-  }
-
-  // 下肢
-  for (const side of [-1, 1]) {
-    const leg = new THREE.Mesh(new THREE.CapsuleGeometry(0.1 * W, 0.62, 6, 10), clothMat);
-    leg.position.set(side * 0.12 * W, 0.55 * H, 0);
-    root.add(leg);
-  }
-
-  return root;
-}
-
-const args = parseArgs();
-fs.mkdirSync(args.out, { recursive: true });
-const exporter = new GLTFExporter();
-
-let generated = 0;
-for (let f = 0; f < args.faces; f++) {
-  for (let b = 1; b <= args.bodies; b++) {
-    for (let s = 1; s <= args.skins; s++) {
-      const name = `avatar_f${f}_b${b}_s${s}.glb`;
-      const outPath = path.join(args.out, name);
-      if (fs.existsSync(outPath)) continue;
-      const scene = buildAvatar(f, b, s);
-      const buf = await new Promise((resolve, reject) => {
-        exporter.parse(
-          scene,
-          (result) => resolve(Buffer.from(result)),
-          (err) => reject(err),
-          { binary: true }
-        );
-      });
-      fs.writeFileSync(outPath, buf);
-      generated++;
-    }
-  }
-}
-console.log(`generated ${generated} GLB (skipped existing) -> ${args.out}`);