Function setupGround

examples/renderer-test/main.ts:482–494

()

// ============================================================

function setupGround(): void {
  // Ground plane — sy=0.1 ≤ 0.3, so placeCube auto-disables cast_shadow.
  placeCube(0, -0.3, 0, 120, 0.1, 120, 0.25, 0.27, 0.22, 0.85, 0.0);

  // Bright sphere high up — tests tone mapping / bloom when those land
  placeSphere(0, 20, -10, 3.0, 5.0, 4.8, 4.0, 0.1, 0.0);

  // Dark reference sphere (test shadow/AO in crevices)
  placeSphere(10, 0.5, 10, 1.0, 0.02, 0.02, 0.02, 0.9, 0.0);

  // Mid-gray reference (linear 0.18 — 18% gray card for exposure)
  placeCube(12, 0.75, 10, 1.5, 1.5, 0.1, 0.18, 0.18, 0.18, 0.9, 0.0);
}

// ============================================================
// Zone 7: glTF Reality Check (DamagedHelmet)