I have a blocker. (Take It Offline)

window.renderAt = (t) => {
  const dawn = t < T.tomorrow ? 0.35 : lerp(0.35, 1.0, sstep(T.tomorrow, T.final, t));
  city.userData.sky.material.uniforms.uDawn.value = dawn;
  const [p, tg, fov] = camAt(t); const sh = shake(t);
  cam.position.copy(p).add(V3(Math.sin(t * 61) * 0.06 * sh, Math.cos(t * 47) * 0.06 * sh, 0)); cam.lookAt(tg); cam.fov = fov; cam.updateProjectionMatrix();
  const under = clamp((-cam.position.y) / 25); city.userData.sky.visible = under < 0.5;
  FOG.color.setRGB(lerp(0.027, 0.02, under), lerp(0.039, 0.07, under), lerp(0.078, 0.06, under)); FOG.density = lerp(0.0042, 0.0065, under); hemi.intensity = lerp(1.1, 1.5, under); deep.intensity = 3.2 * under; key.intensity = 1.5 * (1 - under); hemi.color.setHex(under > 0.5 ? 0x8fb8c0 : 0x6f86b8);
  const dark0 = (t >= T.blocker && t < T.knocks[0]) ? sstep(T.blocker, T.blocker + 0.05, t) : 0;
  for (let i = 0; i < 16; i++) {
    const r = rooms[i]; r.root.position.copy(gridPos(i, t));
    r.root.visible = (i < 15 || t >= T.samJoin) && !(t >= T.bridge + 4 && t < T.tomorrow - 1);
    const [tk, tc] = talk(i, t);
    const pw = i === 15 ? (t >= T.knocks[4] && t < T.tomorrow ? 1 - sstep(T.knocks[4], T.knocks[4] + 0.5, t) : 1) * (t >= T.leave ? 1 - sstep(T.leave, T.leave + 0.2, t) : 1) : powerOn(i, t);
    const dark = Math.max(i === 15 ? 0 : dark0 * 0.94, 1 - pw);
    r.update({ t, talk: tk * pw, talkCol: tc, card: letterOn(i, t), fine: fineOn(t), dark, blink: i === 4 && t >= ls(7) && t < le(7) ? 1 : undefined });
  }
  const b = blockState(t); block.visible = !!b; block.userData.shadow.visible = !!b && t < T.fall + 0.2;
  if (b) { block.position.set(0, b.y, b.z); block.rotation.set(b.rx, 0.12, 0); block.userData.shadow.position.set(0, ROOF_Y + 0.34, b.z);
    block.userData.shadow.material.opacity = 0.75 * clamp(1 - (b.y - ROOF_Y - 2.4) / 30); }
  const bu = t - T.blocker; burst.visible = bu >= 0 && bu < 2.2;
  if (burst.visible) { const pa = burst.geometry.attributes.position, v = burst.geometry.userData.v;
    for (let i = 0; i < pa.count; i++) pa.setXYZ(i, v[i * 3] * (1 - Math.exp(-bu * 2.2)), ROOF_Y + 0.4 + v[i * 3 + 1] * bu - 2.45 * bu * bu, BLOCK_Z0 + v[i * 3 + 2] * (1 - Math.exp(-bu * 2.2)));
    pa.needsUpdate = true; burst.material.opacity = 0.9 * (1 - bu / 2.2); }
  const kb = since(T.knocks, t); beams.visible = !!b && kb < 0.55 && t < T.fall + 0.4;
  if (beams.visible) { const tgt = V3(0, b.y, b.z - 2.1);
    beams.children.forEach((m, i) => { if (i === 15) { m.visible = false; return; } m.visible = true; const from = roomWorld(i, t).add(V3(0, 0, 0.1));
      const d = tgt.clone().sub(from); const len = d.length(); m.position.copy(from).add(d.clone().multiplyScalar(0.5)); m.quaternion.setFromUnitVectors(V3(0, 1, 0), d.clone().normalize());
      const th = 1 + 2.5 * Math.exp(-kb / 0.08); m.scale.set(th, len, th); m.material.opacity = 0.9 * (1 - kb / 0.55); }); }
  const tkk = Math.max(win(t, ls(10), le(11), 0.4, 0.8), win(t, ls(26), le(27), 0.4, 0.8), win(t, ls(2), le(2), 0.3, 0.6));
  tickets.visible = tkk > 0.01;
  if (tickets.visible) { const sd = tickets.userData.seed, gc = GC();
    for (let i = 0; i < sd.length; i++) { const [a, b2, c, d] = sd[i]; const ang = a * Math.PI * 2 + t * (0.35 + b2 * 0.3); const rad = (10 + c * 6) * (0.6 + 0.4 * tkk);
      _e.set(t * (0.5 + d), ang, t * 0.3 + a * 6); _q.setFromEuler(_e);
      _m4.compose(V3(gc.x + Math.cos(ang) * rad, gc.y - 4 + d * 10 + Math.sin(t * 0.8 + a * 9) * 0.6, gc.z + Math.sin(ang) * rad * 0.6 + 2), _q, V3(tkk, tkk, tkk)); tickets.setMatrixAt(i, _m4); }
    tickets.instanceMatrix.needsUpdate = true; }
  const ck = win(t, ls(20), le(21), 0.3, 0.6); clock.visible = ck > 0.01;
  if (clock.visible) { clock.position.copy(GC()).add(V3(0, 6.6, 0.6)); clock.material.opacity = ck; clock.scale.setScalar(0.85 + 0.15 * ck); }
  crack.material.opacity = t >= T.fall + 1.2 && t < T.tomorrow ? 0.95 : 0;
  const tanH = Math.tan(THREE.MathUtils.degToRad(cam.fov) / 2);
  for (const L of lyrics) { const on = !CLEAN && t >= L.userData.s && t < L.userData.e; L.visible = on;
    if (on) { L.material.uniforms.uTime.value = t; const dz = 5.2; L.position.set(0, VERT ? -dz * tanH * 0.20 : -dz * tanH * 0.62, -dz); L.material.uniforms.uScale.value = H / (2 * tanH); } }
  dust.rotation.y = t * 0.01;
  const fl = (t >= T.blocker && t < T.blocker + 0.3 ? Math.exp(-(t - T.blocker) / 0.06) * 0.5 : 0) + (kb < 0.3 && t >= T.knocks[0] && t < T.fall + 0.1 ? Math.exp(-kb / 0.05) * 0.18 : 0);
  finish.uniforms.uFlash.value = fl; finish.uniforms.uFlashCol.value.set(t < T.knocks[0] ? 0xffc2dc : 0xd8ffe8);
  finish.uniforms.uTime.value = t;
  finish.uniforms.uFade.value = sstep(0.0, 0.9, t) * (1 - sstep(T.dur - 1.0, T.dur - 0.05, t));
  if (!CLEAN) drawHud(t); else hud.visible = false;
  composer.render();
  return renderer.domElement.toDataURL('image/jpeg', 0.93);
};
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