I'm trying to make this box move in both the up and down directions, but currently it only moves up.
BoxGeo = new HREE.BoxGeometry(10,10,10)
BoxMat = new THREE.MeshPhongMaterial({
color: 0xf3e54f
}),
cab = new THREE.Mesh ( BoxGeo, BoxMat);
scene.add(cab);
cab.position.y += 1;
By utilizing the Math.random() function, you are able to receive values within the [0, 1] interval. If you wish to alter this range to [-1, 1], you can achieve this through a basic equation:
let change = (Math.random() - 0.5) * 2.0;
cab.position.y += change;
To achieve smooth vertical movement of the object in your animation loop, incorporating the Math.sin() function is essential.
object.position.y = Math.sin(elapsedTime) + 1
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