<!-- SOLID CITY · part 3123 -->
.frustumCulled = false; im.name = 'glow-pools'; group.add(im);
    [[A_C, 0xff9a4d], [B_C, 0xff7a3c]].forEach(function (w) {
      var m = new T.Mesh(new T.CircleGeometry(138, 28), new T.MeshBasicMaterial({ map: glowTexShared, transparent: true, opacity: 0.13, color: w[1], depthWrite: false }));
      m.rotation.x = -Math.PI / 2; m.position.set(w[0].x, w[0].f + 0.30, w[0].z); m.renderOrder = 2; m.frustumCulled = false; group.add(m);
    });
    [1425, 1470, 1515].forEach(function (z) {
      var m2 = new T.Mesh(new T.CircleGeometry(11, 18), new T.MeshBasicMaterial({ map: glowTexShared, transparent: true, opacity: 0.10, color: 0xff8a4d, depthWrite: false }));
      m2.rotation.x = -Math.PI / 2; m2.position.set(GAL.x, galleryFloorY(z) + 0.07, z); m2.renderOrder = 2; m2.frustumCulled = false; group.add(m2);
    });
    glowInfo = { pools: glowSpots.length, washes: 5, halos: haloMats.length };
  }
  function displace(geo, rx, ry, depth) {
    if (!HEIGHT || !geo.attributes.uv || !geo.attributes.normal) return geo;
    var p = geo.attributes.position, n = geo.attributes.normal, uv = geo.attributes.uv;
    for (var i = 0; i < p.count; i++) {
      var d = imgH(uv.getX(i) * rx, uv.getY(i) * ry) * depth;
      if (d > molded.maxRise) molded.maxRise = d;
      if (d < molded.maxSink) molded.maxSink = d;
      p.setXYZ(i, p.getX(i) + n.getX(i) * d, p.getY(i) + n.getY(i) * d, p.getZ(i) + n.getZ(i) * d);
    }
    geo.computeVertexNormals(); molded.baked = true; return geo;
  }
  function lavaMat(rx, ry, side, flat) {
    var t2 = lavaTex.clone(); t2.needsUpdate = true;
    t2.wrapS = t2.wrapT = T.RepeatWrapping; t2.repeat.set(rx, ry);
    var m = new T.MeshLambertMaterial({ map: t2, side: side || T.FrontSide });
    /* THE VEIN-FIRE (the superhero elevation, from the
     * shader book's first lesson: the map that colors a
     * thing can also be the map that makes it GLOW) — the
     * lava image burns from inside its own veins: black
     * stone, red fire, pulsing in the update below. */
    m.emissiveMap = t2; m.emissive = new T.Color(0xff2a12); m.emissiveIntensity = 0.38;
    var rel = opts.texTier === 'lo' ? BMP : NRM;
    if (rel) {
      var rc = rel.clone(); rc.needsUpdate = true; rc.wrapS = rc.wrapT = T.RepeatWrapping; rc.repeat.set(rx, ry);
      if (opts.texTier === 'lo') { m.bumpMap = rc; m.bumpScale = 0.7; }
      else { m.normalMap = rc; m.normalScale = new T.Vector2(0.85, 0.85); }
    }
    if (flat) m.flatShading = true;
    lavaMats.push(m); lavaClones.push(t2); return m;
  }
  var marbleMats = [];
  function marbleDisc(x, y, z, r, tex, rep) {
    var t2 = tex.clone(); t2.needsUpdate = true; t2.repeat.set(rep || 3, rep || 3);
    var m = new T.Mesh(new T.CylinderGeometry(r, r + 1.5, 0.5, 40), new T.MeshLambertMaterial({ map: t2 }));
    m.position.set(x, y - 0.13, z); m.frustumCulled = false; group.add(m); marbleMats.push(m);
    return m;
  }
  function textPlate(lines, w, h, fs) {
    var cv = document.createElement('canvas'); cv.width = 1024; cv.height = Math.round(1024 * h / w);
    var g = cv.getContext('2d');
    g.fillStyle = '#0d0a0c'; g.fillRect(0, 0, cv.width, cv.height);
    g.strokeStyle = '#d8a833'; g.lineWidth = 7; g.strokeRect(12, 12, cv.width - 24, cv.height - 24);
    g.fillStyle = '#ecc76e'; g.textAlign = 'center'; g.textBaseline = 'middle';
    lines.forEach(function (ln, i) {
      g.font = (i === 0 ? '800 ' : '600 ') + Math.round(fs * (i === 0 ? 1 : 0.52)) + 'px Georgia, serif';
      g.fillText(ln, cv.width / 2, cv.height * (lines.length === 1 ? 0.52 : 0.32 + i * 0.38));
    });
    var t = new T.CanvasTexture(cv); t.encoding = T.sRGBEncoding; t.anisotropy = 4;
    return new T.MeshBasicMaterial({ map: t });
  }
  /* a sign the lawful way: backing stone, plate PROUD of it,
   * a second face turned for the other journey */
  var footprints = [];
  function sign(x, y, z, ry, w, h, lines, fs, postH) {
    var g2 = new T.Group(); g2.position.set(x, y, z); g2.rotation.y = ry; group.add(g2);
    if (postH) {
      var post = new T.Mesh(new T.BoxGeometry(0.32, postH, 0.32), new T.MeshLambertMaterial({ color: C.titanium }));
      post.position.y = -postH / 2; post.frustumCulled = false; g2.add(post);
      footprints.push({ x: x, z: z, w: 0.7, d: 0.7, a: 0, y0: y - postH, y1: y });
    }
    var back = new T.Mesh(new T.BoxGeometry(w + 0.5, h + 0.5, 0.22), new T.MeshLambertMaterial({ color: C.stoneDark }));
    back.frustumCulled = false; g2.add(back);
    var mat = textPlate(lines, w, h, fs);
    var f1 = new T.Mesh(new T.PlaneGeometry(w, h), mat); f1.position.z = 0.14; f1.frustumCulled = false; g2.add(f1);
    var f2 = new T.Mesh(new T.PlaneGeometry(w, h), mat); f2.position.z = -0.14; f2.rotation.y = Math.PI; f2.frustumCulled = false; g2.add(f2);
    footprints.push({ x: x, z: z, w: w + 0.6, d: 0.8, a: ry, y0: y - h / 2 - 0.3, y1: y + h / 2 + 0.3 });
    return g2;
  }
  function lamp(x, y, z, s) {
    cyl(solid, 0.09, 0.13, 3.4 * (s || 1), 6, mat4(x