I'm attempting to adjust both the height (Y) and vertical position of a cube simultaneously in order to keep its base on the same X-Z plane after scaling. The visual display seems to be working correctly, but the actual behavior is not meeting my expectations. The object's position in the Y-direction increases rapidly initially, and then it suddenly disappears. Can someone provide guidance on how to resolve this issue?
To handle these transformations, I have implemented an event listener called mouseMove along with its corresponding listener function:
var fHeight = 5, yShift;
function onDocumentMouseMove(event) {
var mouseVector = new THREE.Vector3(2*(event.clientX/window.innerWidth) - 1, 1 - 2*(event.clientY/window.innerHeight));
var projector = new THREE.Projector();
var raycaster = projector.pickingRay(mouseVector.clone(), camera);
var intersects = raycaster.intersectObjects( Object.children );
if(intersects.length > 0) {
intersects[0].object.scale.y += 0.1;
fHeight = fHeight*intersects[0].object.scale.y;
yShift = fHeight/2 - intersects[0].object.position.y - 2.5;
intersects[0].object.position.y = intersects[0].object.position.y + yShift;
}
}