How to shake camera with cinemachine?

Hello,Can anyone help me with this?
I used to shake camera with script when the charactor was hit by attack,
After using cinemachine the script doesn't work,How can I shake the camera with cinemachine?

 

Use the Noise module.

 

hey @Tak2017, got the same issue, this is what I've done:

• In the freeCamera, go and add a noise pattern, put AmplitudeGain and FrequencyGain to 0.
• Add the following code in your camera function
• launch the code with a "StartCoroutine(_ProcessShake (5, 0.5f) );"

Code (CSharp):

1.  
2.  
3.         private IEnumerator _ProcessShake(float shakeIntensity = 5f, float shakeTiming = 0.5f)
4.         {
5.                 Noise(1, shakeIntensity);
6.                 yield return new WaitForSeconds(shakeTiming);
7.                 Noise(0, 0);
8.         }
9.  
10.         public void Noise(float amplitudeGain, float frequencyGain)
11.         {
12.             cmFreeCam.topRig.Noise.m_AmplitudeGain = amplitudeGain;
13.             cmFreeCam.middleRig.Noise.m_AmplitudeGain = amplitudeGain;
14.             cmFreeCam.bottomRig.Noise.m_AmplitudeGain = amplitudeGain;
15.              
16.             cmFreeCam.topRig.Noise.m_FrequencyGain = frequencyGain;
17.             cmFreeCam.middleRig.Noise.m_FrequencyGain = frequencyGain;
18.             cmFreeCam.bottomRig.Noise.m_FrequencyGain = frequencyGain;      
19.  
20.         }
21.  
22.  

 

Thanks very much! I'll try this!

 

I want to shake strongly in very short time like 6 to 10 frames,not the handheld style.Thank you all the same~

 

Thanks for your reply!I'll Try this,and post my progess later,thank you!

 

@sebsmax @Tak2017 @Gregoryl Thank you!

Code (csharp):

1.  
2. CinemachineVirtualCamera vcam;
3. CinemachineBasicMultiChannelPerlin noise;
4.  
5. void Start() {
6.         vcam = GameObject.Find("CM vcam1").GetComponent<CinemachineVirtualCamera> ();
7.         noise = vcam.GetCinemachineComponent<CinemachineBasicMultiChannelPerlin> ();
8. }
9.  
10. public void Noise(float amplitudeGain, float frequencyGain) {
11.         noise.m_AmplitudeGain = amplitudeGain;
12.         noise.m_FrequencyGain = frequencyGain;    
13. }
14.  

 

Duplicating my post here from https://forum.unity.com/threads/how-to-enable-camera-noise-via-script.495032/#post-3416215

@Gregoryl You suggest to use the BasicMultiChannelPerlinNoise extension component, which is fine in this kind of setup where you have a Scene with one VirtualCamera that is always shaking.

I'm looking for more of game-event driven camera shake to make short-duration events during play more impactful, like player getting damage, things breaking, final hits when defeating enemies, explosions happening.

The thing is that there is a vast amount of Scenes, each with similarly large number of VirtualCameras, and some VirtualCameras are actually already using the noise component for something else that they need to emphasize.

I'd like to setup a system where I can pretty much call CameraShake.Shake(someShakeTemplateParameter) where someShakeTemplateParameter is probably a ScriptableObject with various intensity and duration variables set up so I can call "CameraShake.Shake(playerHitShake);" or "CameraShake.Shake(hugeExplosion);" and such in code where enemies hit or bombs go off.

I already threw together a class that tries to do a lot of things, like:

• look for a CameraBrain to get the active VirtualCamera from

• tracks Scene changes to re-look for a new CameraBrain and check for all other current references

• tracks current CameraBrains VirtualCameraActivation event to check if it needs to Add or Get a new BasicMultiChannelPerlinNoise component for the current VirtualCamera
• Hijacks the BasicMultiChannelPerlinNoise component and forces a new noise profile, new amplitude and new frequency values, storing the old values
• restores the old values after a duration
• etc.

The system is not perfect by a long shot. It's easy to lose track of a VirtualCamera before restoring something and my quickly implemented system already managed to fail a couple of tests for tracking the VirtualCamera changes, so there's somewhere a on-standby VirtualCamera shaking wildly, while the active one no longer shakes when expected to.

Yeah, I will probably try to improve my system to use your recommendation of VirtualCamera noise for camera shake, but it's a lot of work, breaks using the noise for other purposes, requires constantly adding/getting a ton of component references and I feel there has to be a better way.

 

Wow, that's a fantastic response! Thank you for staying civil in the face of my rant and providing such a prompt, informative and immediately helpful answer!

We're running on a deadline, so I don't quite have the time to roll my own at this point, nor can I simply wait for two weeks, but your example will tide my needs over as a nice compromise. I'll use that to implement a quick temporary solution and hope that your Impulse system will be available in two weeks - if not, I'll scramble to improve the slap-patch solution, but at least now I don't have an immediate need to allocate much time for it.

 

@Gregoryl Any updates on the Cinemachine Impulse System that you can share? Any ETA?

 

Did this feature make it into 2.1.12?

 

Hey Greg, quick question on the code you posted:

Which object do I attach this script? Would it be one of the virtual cams? Would I call this class in another script and pass it the virtual cam? Also how would I control the time to shake? Would I Slerp the total shake over a set amount of time using a while loop in a coroutine?

Let me know and thanks!

 

Thanks! Also an offtopic question:

I've tried to import the latest post processing stack (v2) off github but I keep getting this error after import: Assets/PostProcessing/CinemachinePostFX.cs(45,28): error CS0234: The type or namespace name `PostProcessing' does not exist in the namespace `UnityEngine'. Are you missing an assembly reference?

I'm using Unity 2017 but I've heard that cinemachine works with the v2 stack on 2017. How would I go about fixing this?

 

Thanks again, last question: are there any other files that I should delete from the cinemachine folder to prevent unwanted interactions between the cinemachine scripts? Also which version of the post processing stack v2 should I use for the cinemachine I've downloaded on 2017 Unity?

 

Thanks, I got it to work

I've been using cinemachine for a while now and I've noticed that it calls GUI.Repaint during runtime. I've seen from other threads that this should only happen during the editor and not during runtime, how would I go about fixing this?

Here's the deep profile from runtime:


The GUI.Repaint() method is happening every frame and spikes every 10 seconds during runtime.

 

Following up from my last post, I ended up commenting out 5 instances of #if UNITY EDITOR regarding OnGui on:
-CinemachineVirtualCameraBase.cs
-CinemachineComposer.cs
-CinemachineBlendListCamera.cs
-CinemachineStateDrivenCamera.cs
-CinemachineClearShot.cs

when I commented out those blocks of code, the GUI.Repaint() was gone and I started getting stable framerate, however, have I removed something important from the editor when I did that? Any loss of functionality to the virtual camera in scene view? I can't tell, everything seems fine.

Its noted in the CinemachineVirtualCameraBase.cs that OnGUI() was called as "Support for the deprecated CinemachineDebugger". Since I commented out the #if UNITY EDITOR on those files, are there other things I need to comment out like delegates or declared actions?

Let me know and thanks!

 

Hey Greg,

Sorry about bumping this thread but I'm at the part where I add the camera shake.

So I've noticed you mentioned that the script you provided shakes the camera continuously, therefore I assume that the PostPipelineStageCallback() method gets called every frame? Would I just add a public boolean called toggleShake and have PostPipelineStageCallback() check for the boolean each frame?

Code (CSharp):

1. protected override void PostPipelineStageCallback(
2.         CinemachineVirtualCameraBase vcam,
3.         CinemachineCore.Stage stage, ref CameraState state, float deltaTime)
4. {
5.     if(toggleShake)
6.     {
7.         if (stage == CinemachineCore.Stage.Body)
8.         {
9.             Vector3 shakeAmount = GetOffset();
10.             state.PositionCorrection += shakeAmount;
11.         }
12.     }
13. }

toggleShake would be set in another class within a coroutine lasting 1.5 seconds by doing:

Code (CSharp):

1.  
2. vcam3.cameraShake.toggleShake = true;
3. yield return new WaitForSeconds(1.5f);
4. vcam3.cameraShake.toggleShake = false;
5.  

I'm not sure if that's the correct way to target the virtual camera's extension. Let me know how to go about doing this and thanks.

 

@Gregoryl that is great news! Is there any update on the availability of the GameRig plugin?

 

Well I have known about Cinemachine for a while now, but am just now starting to figure out how to use it in a game.

Hi @Gregoryl
I want a camera that the user can rotate around the target and zoom in/out. Each target (vehicle) probably needs to have its own top/middle/bottom orbit and zoom values, depending on the size of the target. I am working on a script now that changes the orbit height and radius for the 3 rigs in the freelook camera.

As I went through the Cinemachine documentation, i read about the planned Game Rig plugin and the Reactor camera type sounds like it might be ideal. Of course I will want to have Camera Shake as well.

Is there more documentation on how to use Game Rig features somewhere?

Best regards,
Tony

 

Hey @Gregoryl First and foremost thanks for this insanely awesome stuff. I've been waiting for the impulse system and finally updated to 2018 just for this. How on earth do you use the Impulse. I can't find documentation and that specific feature.

 

Thanks man!!!

 

@Gregoryl Magic. Absolute F***ing magic. Thanks man. This is some unbelievably awesome tech. I would clap but my arms would fall off. Sincerely thanks for your work.

 

very happy to hear that impulse has been released ... cool
thanks guys !!

on a side note .. any chances that you guys could release some Playmaker actions once in a while ? Some that are updated and in synch with the latest Cinemachine releases and features ... it would be very useful .. we are many

have a good day

 

Hello. Just downloaded Cinemachine and can't find the impulse script and cannot call any of Cinemachine methods through script because the environment can't find it. I tried to import in script with "using" but nope... giving errors. Am I missing something I believe?

Edit 1: Just solved my problems but still struggling to make this work. Maybe need some time working with this, but it's amazing so far.

 

@Gregoryl Great work! But I've got two questions after reading that User Guide.

1. What is the difference between the Vector3 parameter Velocity in GenerateImpulseAt() method and the Amplitude Gain parameter of the script Cinemachine Impulse Source? If I want to adjust the strength of the impulse, which parameter should I change?

2. What does the Direction Mode affect? I've tried both modes but can't find the difference.

Looking forward to the official documentation!

 

me too

 

Thanks! The explanation is really clear and detailed!

 

Solved.

 

Hey Greg,

I've just updated my cinemachine to the latest build quick question tho:

I've been messing around with the values in the raw signal asset, adjusting the amplitudes and frequencies. I'm trying to recreate the smooth camera shake seen in this script:

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class CameraShakeHandler : MonoBehaviour
5. {
6.     public AnimationCurve ShakeCurve = AnimationCurve.EaseInOut(0, 1, 1, 0);
7.     public float Duration = 2;
8.     public float Speed = 22;
9.     public float Magnitude = 1;
10.     public float DistanceForce = 100;
11.     public float RotationDamper = 2;
12.     public bool IsEnabled = true;
13.  
14.     public Camera mainCamera;
15.  
16.     bool isPlaying;
17.     //[HideInInspector]
18.     //public bool canUpdate;
19.  
20.     void PlayShake()
21.     {
22.         StartCoroutine(Shake());
23.     }
24.  
25.     void Update()
26.     {
27.         if (isPlaying && IsEnabled)
28.         {
29.             Debug.Log("camera shake");
30.             isPlaying = false;
31.             PlayShake();
32.         }
33.     }
34.  
35.     void OnEnable()
36.     {
37.         isPlaying = true;
38.     }
39.  
40.     IEnumerator Shake()
41.     {
42.         var elapsed = 0.0f;
43.         var camT = mainCamera.transform;
44.         var originalCamRotation = camT.rotation.eulerAngles;
45.         var direction = (transform.position - camT.position).normalized;
46.         var time = 0f;
47.         var randomStart = Random.Range(-1000.0f, 1000.0f);
48.         var distanceDamper = 1 - Mathf.Clamp01((camT.position - transform.position).magnitude / DistanceForce);
49.         Vector3 oldRotation = Vector3.zero;
50.         while (elapsed < Duration)
51.         {
52.             elapsed += Time.deltaTime;
53.             var percentComplete = elapsed / Duration;
54.             var damper = ShakeCurve.Evaluate(percentComplete) * distanceDamper;
55.             time += Time.deltaTime * damper;
56.             //camT.position -= direction * Time.deltaTime * Mathf.Sin(time * Speed) * damper * Magnitude / 2;
57.  
58.             var alpha = randomStart + Speed * percentComplete / 10;
59.             var x = Mathf.PerlinNoise(alpha, 0.0f) * 2.0f - 1.0f;
60.             var y = Mathf.PerlinNoise(1000 + alpha, alpha + 1000) * 2.0f - 1.0f;
61.             var z = Mathf.PerlinNoise(0.0f, alpha) * 2.0f - 1.0f;
62.  
63.             if (Quaternion.Euler(originalCamRotation + oldRotation) != camT.rotation)
64.                 originalCamRotation = camT.rotation.eulerAngles;
65.             oldRotation = Mathf.Sin(time * Speed) * damper * Magnitude * new Vector3(0.5f + y, 0.3f + x, 0.3f + z) * RotationDamper;
66.             camT.rotation = Quaternion.Euler(originalCamRotation + oldRotation);
67.  
68.             yield return null;
69.         }
70.     }
71. }
72.  

Can you guide me to which values I need to adjust in both the raw signal and the Impulse source script to recreate the smooth camera shake seen in the code above?

 

Hey Greg, I've tried your recommendation of using the perlin noise presets (cloned them) and adjusted the frequency and messed with the attack, sustain, and decay. It seems to be smooth but I'm getting artifacts within the camera shake. Take a look here around 0:20 where it happens:

using the wide angle strong preset




What is causing these artifacts in the shake? Would it have something to do with the Attack, Sustain, and Decay values?

 

For shaking the camera I use OnPostRender() and OnPrerender(). They work seamlessly with cinemachine.

 

That was it! Thanks Greg

 

Can't we just have a simple interface like DOTween?

Code (CSharp):

1. DOShakePosition(float duration, float strength, int vibrato, float randomness)

So that I can just call the function like this below.

Code (CSharp):

1.   Camera.main.DOShakePosition(2f);

EDITED:
Well, after a few time's work, I add this function to to my CameraManager script.
P.S. I used 6D shake noise.

Code (CSharp):

1.     public void ShakeCurrentCamera(float amplitudeGain = 1f,float duration = 0.5f)
2.     {
3.         if(ShakeImpulseSource != null)
4.         {
5.             ShakeImpulseSource.m_ImpulseDefinition.m_AmplitudeGain = amplitudeGain;
6.             ShakeImpulseSource.m_ImpulseDefinition.m_TimeEnvelope.m_SustainTime = duration;
7.             ShakeImpulseSource.GenerateImpulse();
8.         }
9.     }

Looks fine

 

Camera Shake the use of Impulse
Create a 2D Virtual Camera the use of the Cinemachine menu alternative and set it up to follow our target.
Click Add Extension > Cinemachine Impulse Listener.
On the Impulse Listener, make sure the checkbox named 'Use 2D Distance' is checked.