Question How to make Cinemachine complete current blending immediately?

I'm trying to make my cinemachine camera complete its current blending immediately, I have tried to set "cinemachineBrain.ActiveBlend.TimeInBlend" , call "cinemachineBrain.ActiveBlend.UpdateCameraState()" and even tried to invoke "cinemachineBrain.SetCameraOverride()" by Reflection, but non of them worked.
Anyone can help?

 

I can set CinemahicneBrain's default blend to Cut, but I do not know if current blending cameras have a custom blend.
And solo camera just cover up the blend but not complete the blend, if I remove solo state, cinemachine will back to blending.
Why there is not a method to complete blending immediately? It's really use useful.

 

Thank you! And could you please also add "Increase special virtual camera's priority and activate it without blending" to your feature list.

 

And I want to modify the source code of Cinemachine to implement this feature, can you give some tips? Thanks!

 

I'm trying to using this method, but it seems to be waiting a frame to cut cameras, therefore I will get a flicker on screen. Is there any way to make Cinemachine flush cameras state in same frame?

 

wow! I'm using cinemachine 2.5.0, I'm going to upgrade to new version right now! Thank you.

 

Re-edited: some bug fixes.

I implemented this feature by make class CinemachineBrain partial and add two extra methods:

Code (CSharp):

1.  
2. namespace Cinemachine
3. {
4.     public partial class CinemachineBrain
5.     {
6.         /// <summary>
7.         /// Call this method explicitly from an external script to update the virtual cameras
8.         /// and position the main camera, if the UpdateMode is set to ManualUpdate.
9.         /// For other update modes, this method is called automatically, and should not be
10.         /// called from elsewhere.
11.         /// </summary>
12.         public void ManualUpdate(float deltaTime)
13.         {
14.             if (m_BlendUpdateMethod != BrainUpdateMethod.FixedUpdate)
15.                 UpdateFrame0(deltaTime);
16.  
17.             ComputeCurrentBlend(ref mCurrentLiveCameras, 0);
18.  
19.             if (m_UpdateMethod == UpdateMethod.FixedUpdate)
20.             {
21.                 // Special handling for fixed update: cameras that have been enabled
22.                 // since the last physics frame must be updated now
23.                 if (m_BlendUpdateMethod != BrainUpdateMethod.FixedUpdate)
24.                 {
25.                     CinemachineCore.Instance.CurrentUpdateFilter = CinemachineCore.UpdateFilter.Fixed;
26.                     if (SoloCamera == null)
27.                         mCurrentLiveCameras.UpdateCameraState(
28.                             DefaultWorldUp, deltaTime);
29.                 }
30.             }
31.             else
32.             {
33.                 CinemachineCore.UpdateFilter filter = CinemachineCore.UpdateFilter.Late;
34.                 if (m_UpdateMethod == UpdateMethod.SmartUpdate)
35.                 {
36.                     // Track the targets
37.                     UpdateTracker.OnUpdate(UpdateTracker.UpdateClock.Late);
38.                     filter = CinemachineCore.UpdateFilter.SmartLate;
39.                 }
40.                 UpdateVirtualCameras(filter, deltaTime);
41.             }
42.  
43.             // Choose the active vcam and apply it to the Unity camera
44.             if (m_BlendUpdateMethod != BrainUpdateMethod.FixedUpdate)
45.                 ProcessActiveCamera(deltaTime);
46.         }
47.  
48.         /// <summary>
49.         /// Complete current active blend immediately.
50.         /// </summary>
51.         /// <param name="completeDamp">If true, will also complete aim and body damp.</param>
52.         public void CompleteCurrentBlend(bool completeDamp = true)
53.         {
54.             if (mFrameStack.Count == 0)
55.             {
56.                 return;
57.             }
58.  
59.             // Complete current blend
60.             mFrameStack[0].blend.Duration = 0;
61.             ManualUpdate();
62.  
63.             // Use -1 to prevent dolly camera finds closest point
64.             var deltaTime = -1;
65.             CinemachineCore.UpdateFilter filter = CinemachineCore.UpdateFilter.Late;
66.             if (m_UpdateMethod == UpdateMethod.SmartUpdate)
67.             {
68.                 // Track the targets
69.                 UpdateTracker.OnUpdate(UpdateTracker.UpdateClock.Late);
70.                 filter = CinemachineCore.UpdateFilter.SmartLate;
71.             }
72.             UpdateVirtualCameras(filter, deltaTime);
73.  
74.             // Choose the active vcam and apply it to the Unity camera
75.             if (m_BlendUpdateMethod != BrainUpdateMethod.FixedUpdate)
76.                 ProcessActiveCamera(deltaTime);
77.  
78.             // Complete damp
79.             if (completeDamp && ActiveVirtualCamera is CinemachineVirtualCameraBase vcam)
80.             {
81.                 vcam.PreviousStateIsValid = false;
82.                 ManualUpdate();
83.             }
84.         }
85.  
86.         /// <summary>
87.         /// Complete incoming active blend immediately if the incoming blend is between camA and camB or contains camA or camB.
88.         /// </summary>
89.         /// <param name="appointCamera">If not null, will only take effect when top priority camera equals appointCamera.</param>
90.         /// <param name="completeDamp">If true, will also complete aim and body damp.</param>
91.         public void CompleteIncomingBlend(CinemachineVirtualCameraBase appointCamera = null, bool completeDamp = true)
92.         {
93.             if (mFrameStack.Count == 0)
94.             {
95.                 return;
96.             }
97.  
98.             if (appointCamera)
99.             {
100.                 appointCamera.MoveToTopOfPrioritySubqueue();
101.             }
102.  
103.             // Find new active camera
104.             var topCam = ActiveVirtualCamera as CinemachineVirtualCameraBase;
105.             int numCameras = CinemachineCore.Instance.VirtualCameraCount;
106.             for (int i = 0; i < numCameras; ++i)
107.             {
108.                 var cam = CinemachineCore.Instance.GetVirtualCamera(i);
109.                 if (cam.gameObject.scene != gameObject.scene)
110.                 {
111.                     continue;
112.                 }
113.  
114.                 if (!topCam || topCam.gameObject.scene != gameObject.scene || topCam.Priority < cam.Priority)
115.                 {
116.                     topCam = cam;
117.                 }
118.  
119.                 // When call MoveToTopOfPrioritySubqueue() and ManualUpdate(),
120.                 // cameras in mActiveCameras may out of order, so do not break
121.                 //if (topCam.Priority >= cam.Priority)
122.                 //{
123.                 //    break;
124.                 //}
125.             }
126.             if (topCam == null || (appointCamera && appointCamera != topCam))
127.             {
128.                 return;
129.             }
130.  
131.             // Trigger virtual cameras priority queen update
132.             topCam.MoveToTopOfPrioritySubqueue();
133.  
134.             // Update frame stack
135.             UpdateFrame0(0);
136.  
137.             // Complete blend
138.             CompleteCurrentBlend(completeDamp);
139.         }
140.     }
141.  
142.     public static class CinemachineCameraExtension
143.     {
144.         /// <summary>
145.         /// Complete body and aim damp.
146.         /// </summary>
147.         /// <param name="cmCam"></param>
148.         public static void CompleteDamps(this ICinemachineCamera cmCam)
149.         {
150.             if (cmCam is CinemachineVirtualCameraBase vcam)
151.             {
152.                 vcam.PreviousStateIsValid = false;
153.             }
154.         }
155.     }
156. }
157.  

 

I've hit the same issue with blends but rather clearing all blends completely and this helped. Thanks.

One more thing though, to prevent "Mid-Blend" from occuring in rare cases, mFrameStack has to be cleared as well:

Code (CSharp):

1.         public void CompleteCurrentBlend(bool completeDamp = true)
2.         {
3.             if (mFrameStack.Count == 0)
4.             {
5.                 return;
6.             }
7.             // Complete current blend
8.             mFrameStack[0].blend.Duration = 0;
9.             ManualUpdate();
10.             // Use -1 to prevent dolly camera finds closest point
11.             var deltaTime = -1;
12.             CinemachineCore.UpdateFilter filter = CinemachineCore.UpdateFilter.Late;
13.             if (m_UpdateMethod == UpdateMethod.SmartUpdate)
14.             {
15.                 // Track the targets
16.                 UpdateTracker.OnUpdate(UpdateTracker.UpdateClock.Late);
17.                 filter = CinemachineCore.UpdateFilter.SmartLate;
18.             }
19.             UpdateVirtualCameras(filter, deltaTime);
20.             // Choose the active vcam and apply it to the Unity camera
21.             if (m_BlendUpdateMethod != BrainUpdateMethod.FixedUpdate)
22.                 ProcessActiveCamera(deltaTime);
23.             // Complete damp
24.             if (completeDamp && ActiveVirtualCamera is CinemachineVirtualCameraBase vcam)
25.             {
26.                 vcam.PreviousStateIsValid = false;
27.                 ManualUpdate();
28.             }
29.          
30.             mFrameStack.Clear();
31.         }

 

Hi! Is there any news about this feature request?

 

hi, is readonly,

cinemachineBrain.ActiveBlend = null;

 

In Cinemachine 2.9.4, its writable.
https://github.com/needle-mirror/co...:text=public CinemachineBlend-,ActiveBlend,-{

 

I don't want to necro this thread, but the issue still remains.

brain.ActiveBlend = null does NOT work.




Please, I am banging my head against the desk trying to find a simple way to cut to another vcam while the default blend is happening.

This seems overly complicated to just do that =(