Minimise Y movement in Follow Cam & Teleport

Imagine a character going from left to right, and right to left, and sometimes jumping up and down.

I want the camera follow this guy, but only in the left and right, with a little lag, exaggerated by the fact the camera is looking at this hero, but I don't want the camera to follow in the up and down, nor look up and down.

How to do this with Cinemachine?

Teleport, in this same space, sometimes happens, from left to right, and vice versa, at which point their should be no noticeable change in the camera relative to the hero.

Is this also possible?

Any and all suggestions and mirth/mockery greatly appreciated.

 

I think I've found the Cinemachine Teleporter, a Warper function from the bottom of the page linked at the bottom of this...

Code (csharp):

1.  public override void OnTargetObjectWarped(Transform target, Vector3 positionDelta)

 

I've got this working...

THANK YOU!!!

!!! Defender Style, Seamless Looping World Teleportation !!!

here's the Eastern Portal, of which the Western is the same, but for the bool saying it's not the East Portal:



And here's the Telporter Script.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using Cinemachine;
5.  
6. public class backupTelporter : MonoBehaviour {
7.  
8.  
9. public CinemachineVirtualCamera vCam1;
10. CinemachineComponentBase myCamera;
11.  
12. Transform otherTransform;
13. Rigidbody2D otherRB;
14. Vector2 RB2D_Velocity;
15. float RB2D_rate_Of_Spin;
16.  
17. Vector3 teleport_Destination;
18. Vector3 teleport_origin;
19. Vector3 teleport_origin_in_portalSpace;
20. Vector3 teleportDistance;
21.  
22. public bool EastPortal;
23. public GameObject Destination;
24.  
25. void Start ()
26. {
27.     myCamera = vCam1.GetCinemachineComponent<CinemachineComponentBase>();
28. }
29.  
30. private void OnTriggerExit2D(Collider2D other)
31. {
32.     otherTransform = other.transform;
33.     otherRB = other.attachedRigidbody;
34.  
35.     if ((EastPortal && otherRB.velocity.x > 0) || (!EastPortal && otherRB.velocity.x <0)){
36.         DoTeleport(otherRB);
37.         }
38. }
39.  
40. void DoTeleport(Rigidbody2D RB2D_toBe_Ported)
41. {
42.     RB2D_Velocity = RB2D_toBe_Ported.velocity;
43.     RB2D_rate_Of_Spin = RB2D_toBe_Ported.angularVelocity;
44.     teleport_origin = RB2D_toBe_Ported.transform.position;
45.     teleport_origin_in_portalSpace = transform.InverseTransformPoint(teleport_origin);
46.     teleport_Destination = Destination.transform.TransformPoint(teleport_origin_in_portalSpace);
47.     teleportDistance.x = teleport_Destination.x - teleport_origin.x;
48.  
49.     RB2D_toBe_Ported.Sleep();
50.     RB2D_toBe_Ported.transform.position = teleport_Destination;
51.     RB2D_toBe_Ported.WakeUp();
52.     RB2D_toBe_Ported.velocity = RB2D_Velocity;
53.     RB2D_toBe_Ported.angularVelocity = RB2D_rate_Of_Spin;
54.     myCamera.OnTargetObjectWarped(otherTransform, teleportDistance);
55.  
56.     Debug.Log("Teleported Other!");
57.     }
58. }
59.  

Here's the camera settings:

 

@Gregoryl Is there a way to do the above with a LookAt, and just a slight bit of slop in the way the Follow works, so there's some slight perspective change as the hero moves too fast for the camera Follow?

 

I've got it working... except I can't constrain the camera to a Y setting. The camera is transforming with the target's Y movement. Other than that, it's working well.

Any idea how I can lock the vCam's y to a set "latitude"?

 

@Gregoryl

This sort of works, but has a few glitches, that are huge and disturbing, and has a little noise that's kind of cool:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using Cinemachine;
5.  
6. public class constr : MonoBehaviour {
7.  
8. CinemachineVirtualCamera myCam;
9. CinemachineComponentBase myBase;
10. public Rigidbody2D  RB2D;
11. CinemachineTransposer myTransposer;
12.     void Start ()
13.     {
14.         myCam = GetComponent<CinemachineVirtualCamera>();      
15.         myBase = myCam.GetCinemachineComponent<CinemachineComponentBase>();
16.         myTransposer = myCam.GetCinemachineComponent<CinemachineTransposer>();
17.     }
18.    
19.     void Update ()
20.     {
21.         myTransposer.m_FollowOffset.y = RB2D.position.y * -1;
22.     }
23. }

 

The big, disconcerting glitches, that are infrequent, is Cinemachine flipping the Z value of the camera for a couple of frames. Not me, I promise. I'm not touching the Z value.

 

I'm new to Unity. So not yet sure how to share, or make much of anything. I'm still working in the same project I first started in, just adding stuff...

where/what/how to share a project?

 

Thank you!!!!!

This will come in very handy, soon... I'm sure to make more problems for myself!

This one, I have managed to fix. I tried a bunch of stuff, two things worked best...

1. Moved the offset maintainer to different updates, FixedUpdate seems to work best. I thought lateUpdate would work better, but it doesn't.

2. Best change: Turned Binding Mode to "Lock to Target, No Roll". I completely forgot about this setting. This was the cause of the glitch. Now it can't flip around to the reverse Z position relative to the target, and never glitches.

 

YESSIR !!!

 

@Gregoryl

Is "look ahead" incompatible with Warping? It wigs out, pretty hard. Goes the wrong way for a bit, by a good amount, and then tries to come back after a bit. Can't find a way to stop this wigging out.

 

No worries.

In general, just wow, because it all "just works™"!

THANK YOU!!!

 

Can you have a read through this, help me understand what @MelvMay is trying to say? It might also help explain why I'm doing the translation of the transform from its position in one portal to the other ie. the object is moving so fast that it's somewhere well outside the portal, not at an edge, by the time the physics engine realises its exited the portal and needs to be teleported.

Rather than have the teleport push it back to a position inside the destination portal on teleport, I use that world position and transform it to origin portal coordinates, then use that in the destination portal coordinates to find the world space to teleport to.

Both portals are the same size, orientation and shape.

anyways... here's the physics discussion where I'm trying to find out how much granularity I can get with the new manual simulation of physics... could you help translate from MelvMay English to my moron designer language?


https://forum.unity.com/threads/whe...ime-independent-of-fixedupdate-s-rate.526987/

 

vcam.OnTargetObjectWarped(GameObject, posDelta);



On the rest.... S***. I feel like an idiot. I don't know how I missed something this obvious about posDelta with regards the two portals and the hero's position.

I am a moron!

UPDATE:

OOPS!!!!

vcam.OnTargetObjectWarped(Transform, posDelta);

 

Sadly, no change to the porting and follow problem. posDelta working perfectly. posDelta on the right in these logs...




I must be doing something else wrong!

 

Yes, lookahead still freaking out. Goes backwards about half way between the teleport positions before over correcting and then returning to where it should be. Across about 7 or 8 frames, maybe more.

I fixed the sign code. Just added a - to the posDelta. Thought it was my mistake, putting wrong foot in front of the other in the pos - otherposition bit.

 

Here's what it looks like:

 

It's a mess of experiments... I'll make sure there's some warning lights on somewhere in it...

I don't really know how to clean it up.

Or where to store/send it too... email link? Private message?

 

My folder structure might be done wrong. This is the only options I have... but you'll need some of the artwork... which don't show up here, at all:

 

Restarting Unity fixed the above problem. Package is 1.6MB ... where to host/send/how?

 

THANK YOU!!!

This works...

But who is "he" you're referring to up there ^

And my apologies for making this mistake... perhaps you can help me to not make the same mistake again...

1. I'm still not clear about how a Script attached to an object knows about the object it's attach to, especially if it has a different class name to its "parent"... but leave that alone for now...


2. when reading these docs:

https://docs.unity3d.com/Packages/c...OrbitalTransposer.html?q=OnTargetObjectWarped

I see OnTargetObjectWarped as being derived from MonoBehaviour, via CineMachineComponentBase, which is why I got that component and created the line to access that method via CineMachineComponentBase... looking at this document, how would I ascertain that I should be calling this method on the entire camera, or know that it was even possible to call it on the whole camera?

 

"It was just bad luck that you found this method... " this makes a LOT of sense...

I was wondering around, through the Cinemachine docs, trying to get a feel for what can and can't be done, when I found the warp function... I hadn't yet got to point where I had a holistic view of Cinemachine to even realise that CinemachineBaseComponent wasn't the entire camera... I kind of thought it was... as "Base Component" made me think it was the base component for a Cinemachine camera...

I'm a moron.

THANK YOU!!!