first commit

data-pipeline/scripts/build-seed-models.mjs

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+import { Document, NodeIO } from "@gltf-transform/core";
+import { readFileSync, mkdirSync } from "node:fs";
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import { buildGeometry } from "./geometry.mjs";
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const manifestPath = path.resolve(__dirname, "../seed/manifest.json");
+const outDir = path.resolve(__dirname, "../seed/models");
+mkdirSync(outDir, { recursive: true });
+
+const { structures } = JSON.parse(readFileSync(manifestPath, "utf-8"));
+
+function eulerToQuat([x, y, z]) {
+  const cx = Math.cos(x / 2), sx = Math.sin(x / 2);
+  const cy = Math.cos(y / 2), sy = Math.sin(y / 2);
+  const cz = Math.cos(z / 2), sz = Math.sin(z / 2);
+  return [
+    sx * cy * cz - cx * sy * sz,
+    cx * sy * cz + sx * cy * sz,
+    cx * cy * sz - sx * sy * cz,
+    cx * cy * cz + sx * sy * sz,
+  ];
+}
+
+function hexToRgb(hex) {
+  const n = parseInt(hex.replace("#", ""), 16);
+  return [((n >> 16) & 255) / 255, ((n >> 8) & 255) / 255, (n & 255) / 255, 1];
+}
+
+const bySystem = new Map();
+for (const s of structures) {
+  if (!bySystem.has(s.system)) bySystem.set(s.system, []);
+  bySystem.get(s.system).push(s);
+}
+
+const systemColors = {
+  esqueletico: "#e8e2d0",
+  muscular: "#b5433a",
+  nervoso: "#f2c14e",
+  cardiovascular: "#c1121f",
+  respiratorio: "#4f7cff",
+  tegumentar: "#e0a96d",
+};
+
+for (const [systemSlug, items] of bySystem) {
+  const doc = new Document();
+  const buffer = doc.createBuffer();
+  const scene = doc.createScene(systemSlug);
+  doc.getRoot().setDefaultScene(scene);
+
+  const material = doc
+    .createMaterial(systemSlug)
+    .setBaseColorFactor(hexToRgb(systemColors[systemSlug] ?? "#cccccc"))
+    .setRoughnessFactor(0.6)
+    .setMetallicFactor(0.05);
+
+  for (const item of items) {
+    const geo = buildGeometry(item.shape);
+    const posAccessor = doc
+      .createAccessor()
+      .setType("VEC3")
+      .setArray(geo.positions)
+      .setBuffer(buffer);
+    const normAccessor = doc
+      .createAccessor()
+      .setType("VEC3")
+      .setArray(geo.normals)
+      .setBuffer(buffer);
+    const idxAccessor = doc
+      .createAccessor()
+      .setType("SCALAR")
+      .setArray(geo.indices)
+      .setBuffer(buffer);
+
+    const prim = doc
+      .createPrimitive()
+      .setAttribute("POSITION", posAccessor)
+      .setAttribute("NORMAL", normAccessor)
+      .setIndices(idxAccessor)
+      .setMaterial(material);
+
+    const mesh = doc.createMesh(item.slug).addPrimitive(prim);
+    const node = doc
+      .createNode(item.slug)
+      .setMesh(mesh)
+      .setTranslation(item.position)
+      .setRotation(eulerToQuat(item.rotation ?? [0, 0, 0]));
+
+    scene.addChild(node);
+  }
+
+  const io = new NodeIO();
+  const outFile = path.join(outDir, `${systemSlug}.glb`);
+  await io.write(outFile, doc);
+  console.log(`✓ ${outFile} (${items.length} estruturas)`);
+}