Function setupThinGeometry

examples/renderer-test/main.ts:438–476

()

// the hardest temporal stability test.

function setupThinGeometry(): void {
  const cx = -25.0;
  const cz = -25.0;

  // Ground
  placeCube(cx, -0.05, cz, 20, 0.1, 16, 0.3, 0.3, 0.32, 0.5, 0.0);

  // Vertical fence posts
  for (let i = 0; i < 20; i = i + 1) {
    const x = cx - 9.5 + i * 1.0;
    placeCube(x, 1.0, cz - 5, 0.06, 2.0, 0.06, 0.35, 0.35, 0.38, 0.4, 1.0);
  }

  // Horizontal fence rail
  placeCube(cx, 1.8, cz - 5, 20, 0.08, 0.08, 0.35, 0.35, 0.38, 0.4, 1.0);
  placeCube(cx, 0.6, cz - 5, 20, 0.08, 0.08, 0.35, 0.35, 0.38, 0.4, 1.0);

  // Diagonal bars (worst case for aliasing)
  for (let i = 0; i < 12; i = i + 1) {
    const x = cx - 5.5 + i * 1.0;
    const node = createSceneNode();
    attachModelToNode(node, cubeHandle, 0);
    setSceneNodeColor(node, 0.6, 0.6, 0.62);
    setSceneNodePbr(node, 0.3, 1.0);
    setSceneNodeCastShadow(node, true);
    setSceneNodeReceiveShadow(node, true);
    let m = mat4Identity();
    m = mat4Translate(m, { x: x, y: 1.5, z: cz + 2 });
    m = mat4RotateY(m, 0.3 + i * 0.15);
    m = mat4Scale(m, { x: 0.05, y: 3.0, z: 0.05 });
    setSceneNodeTransform(node, m);
  }

  // Grid of very thin wires (subpixel test)
  for (let i = 0; i < 30; i = i + 1) {
    const x = cx - 7 + i * 0.5;
    placeCube(x, 1.0, cz + 6, 0.02, 2.0, 0.02, 0.7, 0.7, 0.72, 0.2, 1.0);
  }
}

// ============================================================
// Ground plane & sky reference objects