Follow only along a certain axis

I have a Cinemachine Virtual Camera which follows the player nicely according to the Follow property and the settings in the Body. Now what I'd like is to make the cinemachine follow only along a certain axis. I'm assuming there is a setting for this?

 

That's working nicely. Thank you!

 

There is one thing, though. Implementing it this way causes blending between two camera's to be somewhat hard, doesn't it? What I want is several y values on which the player is tracked. If the player moves from being the closest to value A to being the closest to value B the camera should gradually move to the other y value. Is this doable with Cinemachine or do I have to write such code myself?

 

I had this blending set up and it worked fine. Now, when setting the y value of the cameras in the extension class it jumps straight to the y value of the activated camera.

 

I was investigating this stuff based on your comment. I applied quite some changes in a small time frame to our project. It seems the problem lies in one of the other changes. Once I get to the bottom of this I'll let you know if everything works as you're suggesting. Thanks.

 

After some fiddling around I found out the cause for the missing blend was I destroyed the virtual camera a blend started with too early.

So you've helped me perfectly. Thank you!

 

I've been trying out this script and just wanted to leave this note here in case anybody else is facing the same questions I did!

Why doesn't this script work?
If you are using a Framing Transposer, you need to change the code as described here:
https://forum.unity.com/threads/cinemachine-follow-player-lock-axis.937118/

Is it possible to combine this script with the "Cinemachine Confiner" extension?
Yes, works like a charm!

 

Thank you I used it for locking in x axis and it works very well.

 

This works great! However, every time i close and re-open my project, it gives me the following error " the referenced script on this behavior is missing"
When I re-add the extension to vcam it's solved again, until the next restart of my project.
Anyone have any idea how to fix this?

 

its working great. Thank you very much

 

Thanks Gregoryl! Here's also a general script for any axis direction where the lockPositionValue is offset by either the virtual camera's Follow transform or the world origin.

Code (CSharp):

1. using UnityEngine;
2. using Cinemachine;
3.  
4. [AddComponentMenu("")] // Hide in menu
5. [SaveDuringPlay]
6. [ExecuteInEditMode]
7. public class LockCameraExtension : CinemachineExtension
8. {
9.     protected enum LockDirection
10.     {
11.         X,
12.         Y,
13.         Z
14.     }
15.  
16.     [Header("Settings")]
17.     [Tooltip("direction to lock the camera's position")]
18.     [SerializeField] LockDirection lockDirection = LockDirection.Z;
19.     [Tooltip("lock the camera's position to this value")]
20.     public float lockPositionValue = 10;
21.     [Tooltip("whether the lockPositionValue's origin is the VCam's follow transform")]
22.     [SerializeField] bool useVCamFollowAsOrigin;
23.  
24.     protected override void PostPipelineStageCallback(
25.         CinemachineVirtualCameraBase vcam, CinemachineCore.Stage stage, ref CameraState state, float deltaTime)
26.     {
27.         if (stage != CinemachineCore.Stage.Body) return;
28.        
29.         Vector3 pos = state.RawPosition;
30.         Vector3 lockPosition = (useVCamFollowAsOrigin && vcam.Follow ? vcam.Follow.position : Vector3.zero) +
31.             Vector3.one * lockPositionValue;
32.        
33.         state.RawPosition = lockDirection switch
34.         {
35.             LockDirection.X => new Vector3(lockPosition.x, pos.y, pos.z),
36.             LockDirection.Y => new Vector3(pos.x, lockPosition.y, pos.z),
37.             LockDirection.Z => new Vector3(pos.x, pos.y, lockPosition.z),
38.             _ => throw new System.NotImplementedException()
39.         };
40.     }
41. }