Smooth raycast positioning - unity3d

Question

I have written a script to move an object via ray cast to positions on a terrain, however I can’t for the life of me seem to make this movement smooth. I have tried all manner of things trying to figure this out (as you can probably tell by the amount of commented-out code below); disabling various rigidbody variables, however to no avail.
One approach that (kind of) worked was disabling the collider attached to the object, however this lead to the object inadvertently sinking below the terrain.
Can anyone please advise me as to the best approach to go about this would be? I feel like this should be very simple but I am over complicating it.
//Move
if (Input.GetKey(KeyCode.E)) {
// if (Input.GetKeyDown(KeyCode.E))
// {
// modObj.GetComponent(BoxCollider).enabled = false;
initPos = modObj.transform.position;
var initRotation = modObj.transform.rotation;
// }
//
// modObj.GetComponent(Rigidbody).isKinematic = true;
// modObj.GetComponent(Rigidbody).useGravity = false;
moveObject(modObj, initPos, initRotation);
} else {
// modObj.GetComponent(BoxCollider).enabled = true;
// modObj.GetComponent(Rigidbody).isKinematic = false;
// modObj.GetComponent(Rigidbody).useGravity = true;
}
function moveObject(modObj: GameObject, initPos: Vector3, initRotation: Quaternion) {
//Debug.Log("Moving Object");
var hit: RaycastHit;
var foundHit: boolean = false;
foundHit = Physics.Raycast(transform.position, transform.forward, hit);
//Debug.DrawRay(transform.position, transform.forward, Color.blue);
if (foundHit && hit.transform.tag == "Terrain") {
modifyObjGUIscript.activateMoveDisplay(initPos, hit.point);
// var meshHalfHeight = modObj.GetComponent.<MeshRenderer>().bounds.size.y /2; //helps account for large and small objects
modObj.transform.position = hit.point; //***method 01***
// modObj.transform.position = Vector3.Lerp(initPos, hit.point, speed); //***method 02***
// modObj.transform.position = Vector3.SmoothDamp(initPos, hit.point, velocity, smoothTime); //***method 02***
// modObj.transform.position.y = modObj.transform.position.y + meshHalfHeight + hoverHeight;
modObj.transform.rotation = initRotation;
}
}

Answer 1

You need to call the moveObject to recompute the position very frequently - every frame, if possible. For example from Update or from coroutine:
void Update()
{
modObj.transform.position = Vector3.Lerp(initPos, hit.point, speed);
}
IEnumerator MoveObject(Vector3 initPos, Vector3 endPos, float speed)
{
while (initPos != endPos)
{
modObj.transform.position = Vector3.Lerp(initPos, endPos, speed);
yield return null;
}
}