koobas.hobune.stream
Camera zoom smoothing
So I have a rather basic camera setup and I would like to implement zoom smoothing in it but I'm not exactly sure how. I believe Mathf.Lerp should be used but my attempts to implement it have failed so far. Here is the code:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class CameraControl : MonoBehaviour
{
public Transform target;
public Vector3 offset;
public float currentZoom = 2f;
public float pitch = 1.75f;
public float zoomSpeed = 0.85f;
public float minZoom = 1.5f;
public float maxZoom = 3f;
public float yawSpeed = 100f;
private float currentYaw = 0f;
private void Update()
{
currentZoom -= Input.GetAxis("Mouse ScrollWheel") * zoomSpeed;
currentZoom = Mathf.Clamp(currentZoom, minZoom, maxZoom);
if (Input.GetButton("Mouse MiddleClick"))
{
currentYaw += Input.GetAxis("Mouse X") * yawSpeed * Time.deltaTime;
}
}
private void LateUpdate()
{
transform.position = target.position - offset * currentZoom;
transform.LookAt(target.position + Vector3.up * pitch);
transform.RotateAround(target.position, Vector3.up, currentYaw);
}
}
After your RotateAround, you can try to move forward your camera, with something like that : Vector.Lerp(transform.position, transform.position + transform.forward * deltaBetweenCurrentZoomAndLastZoom, Time.deltaTime);
Best Answer
public class CameraControl : MonoBehaviour
{
public Transform target;
public Vector3 offset;
private float desiredZoom = 2f;
private float currentZoom = 2f;
public float pitch = 1.75f;
public float zoomSpeed = 0.85f;
public float zoomLerpSpeed = 0.85f;
public float minZoom = 1.5f;
public float maxZoom = 3f;
public float yawSpeed = 100f;
private float currentYaw = 0f;
private void Update()
{
desiredZoom -= Input.GetAxis("Mouse ScrollWheel") * zoomSpeed;
desiredZoom = Mathf.Clamp(desiredZoom, minZoom, maxZoom);
currentZoom = Mathf.Lerp(currentZoom, desiredZoom, zoomLerpSpeed);
if (Input.GetButton("Mouse MiddleClick"))
{
currentYaw += Input.GetAxis("Mouse X") * yawSpeed * Time.deltaTime;
}
}
private void LateUpdate()
{
transform.position = target.position - offset * currentZoom;
transform.LookAt(target.position + Vector3.up * pitch);
transform.RotateAround(target.position, Vector3.up, currentYaw);
}
}
