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Merge anomalies with Flattened Layers, PTZ and Layers - Issues with various merge scenarios
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Highway20Productions  
#1 Posted : Thursday, January 16, 2025 3:42:06 AM(UTC)
Highway20Productions

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Joined: 11/10/2024(UTC)
Posts: 12
United States
Location: Corvallis, OR
First, thank you so much for the Flatten Layers. Game Changer.

Here are some things I have observed with the merge functionality.

When Merging from a flattened virtual copy to a PTZ Virtual copy of an input, it will zoom too far then quickly cut to the correct position.

Merging from an input to a flattened, zoom of the same input works correctly. Thank You.

I created a 2UP with one of the layers being color bars. Merging between the 2UP and the Full Color Bars works correctly.
But when I use a flattened zoom of the Color bars in the 2UP, it resorts to a fade. This is even though the merge between the Original and Flattened zoomed one worked fine.

I am attaching a project for example. Merge Behavior.vmixZip (316kb) downloaded 2 time(s).

Layer Description
C1 = Color Bars
C2 = Virtual Copy of C1, Flattened and Zoomed/Posistioned
C3 = Virtual Copy of C1, Virtual PTZ Zoomed and Positioned (old way we had to do this before flattening of layers)

2UP with C1 - A 2UP with C1 on the right side
2UP with C2 - A 2UP with C2 on the right side
2UP with C3 - A 2UP with C3 on the right side


Here are the scenarios:
PROGRAM: C1
PREVIEW: C2
MERGE = Successful animation


PROGRAM: C1
PREVIEW: C3
MERGE = 1 Second Delay, then Cut. It would be nice if the virtual PTZ copy of C1 would recognize that C1 and C3 are "virtually" the same and merge/zoom between them

PROGRAM: C2
PREVIEW: C3
MERGE: Broken. It will animate to the wrong position, then quicky cut to the correct one

PROGRAM: 2UP with C1
PREVIEW: C1
MERGE: Successful animation

PROGRAM: 2UP with C1
PREVIEW: C1
MERGE: Successful animation

PROGRAM: 2UP with C1
PREVIEW: C2
Merge: Successful animation

PROGRAM: 2UP with C2
PREVIEW: C2
MERGE: Fade Only. This would be nice if this were animated. It knows that C2 is in the second slot of the 2UP, and it knows it is merging to C2. So it seems like it should be able to animate between them.

PROGRAM 2UP with C3
PREVIEW: C3
MERGE: Successful animation. This is pretty similar to the one above that just fades, so it looks like it is possible.
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admin  
#2 Posted : Thursday, January 16, 2025 3:26:24 PM(UTC)
admin

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Hi,

I initially responded here with information that was not accurate, so here is attempt #2!

Virtual PTZ and Merge

In the example provided, there is three inputs involved:

1. The original input
2. A virtual copy of the input using the standard Position Pan and Zoom controls
3. A virtual copy of the input using Virtual PTZ to zoom/pan instead

Merging between 2 and 3 does not appear work properly.
This is to be expected, as Virtual PTZ flattens much like a Mix Input, so any pan/zoom is not possible to merge.

Merge an Input that has Flatten Layers enabled

This is where an Input (1) with Flatten Layers is enabled, and is merged with another Input (2) where it is assigned as a Layer.

The reason is Flatten Layers only applies when used in another input as a Layer for performance reasons.
When used as that Layer, it is essentially a whole new input (a Mix input behind the scenes) hence why it won't merge.

You can workaround this by creating a Blank input with the Layer 1 set to 100% and merge to that.

Solutions

In most situations there will be an alternative to achieve the specific look you need.
If you could explain in detail what that is, I will do my best to offer a solution.

Regards,

Martin
vMix
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thanks 1 user thanked admin for this useful post.
sinc747 on 1/17/2025(UTC)
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