Update index.html

public/index.html

@@ -34,7 +34,7 @@ const materials = [
 ];
 
 // Create the cube and add it to the demo scene.
-const cube = new THREE.Mesh(new THREE.CylinderGeometry(1, 1, 2), materials);
+const cube = new THREE.Mesh(new THREE.SphereGeometry(0.5, 0.5, 0.5), materials);
 cube.position.set(0, 0, -1);
 scene.add(cube);