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How to make changes to one copy of a compound clip independent of the other copy?

I have worked on two clips in relation to each other, and created a compound clip so those changes are conserved for both clips, and will both respond to future changes to the compound clip.


I made a copy of compound clip, because I would like to make additional changes, independent of the first compound clip. However, any changes I make, also appear on the other copy of the compound clip. How to unlink this synchronicity across copies of a compound clip?

Posted on Oct 6, 2019 11:26 PM

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Question marked as Best answer

Hi Luis,


Well I found a solution, so much simpler, I was making it more complicated than it had to be.


layer L + R clips over each other in project time line


line up clips using transform tools in inspector.


duplicate clips, so one pair follows the other in time line


turn opacity to zero in top layer of one pair... so one pair reveals L layer, other pair reveals R layer


THEN turn each pair into separate compound clips, and Clip > new parent


apply transform to each so they are compressed to left and right side of frame for side-by-side 3d output (transforms preserved as presets)


and voila!


trick is to create compound clips after clips are duplicated...then they remain independent...


i still think it should be possible to apply changes independently to compound clips which have a new parent, but looks like the guarantee of independence is duplicating the clips before compounding.


thanks for your interest, suggestions and patience!

Posted on Oct 9, 2019 10:06 AM

14 replies

Oct 7, 2019 9:16 AM in response to Luis Sequeira1

Thanks so much for suggestion. Alas, changes made to one compound clip still affect the other.


Here is my work flow:

select compound clip.

Copy, paste into same time line.

Select new compound clip copy

Clip > reference new parent clip


what i would like to do is change opacity on one of two layers in one of the compound clips

I double click the compound clip, it opens up on its own.

I double click again, the two layers in it are separated.

I adjust the opacity as desired of the top layer.

I click the left arrow button directly above and in middle of time line, or click on project in projects list, to go back to timeline with two compound clips

the change in opacity unfortunately appears in both compound clips.


Any suggestions, am I missing a step?


Thanks very much


Oct 7, 2019 9:30 AM in response to marten berkman

You appear to be doing it right... what are the two layers in the compound? Just two regular clips? Other compound clips?


I have just tried it on my mac and it worked as expected:


1) two stacked clips:


B

A


2) made those into a compound clip. The top clip is fully opaque (I used A the "curtains" and B the "clouds" generators for this, but it should not matter)


3) Option-drag, or copy and paste, to make a copy of the compound.


4) Select the second copy, Clip->Reference new Parent Clip


5) Open this second clip, and reduce the transparency of the top clip.


6) Go back


It looks like this in the timeline (and the viewer agrees).


Oct 7, 2019 11:37 AM in response to Luis Sequeira1

Interesting.


My workflow is a bit complicated, so I will upload a video of a screen capture.


I work in stereo 3D, so I take L+R videos, and lay them one on top of another.

I reduce the opacity of top layer (L) by half to be able to see both and line them up.

I can then leave the top layer completely transparent, leaving only bottom layer (R) visible.

Once this has succeeded, I turn the two of them into a compound clip.

since playback is compressed L+R images, side by side into a single 1920x1080 frame, I distort the compound clip so it is squeezed into half frame.

You will see in the video that I jump to the project or timeline with this side by side distortion so you don't have to watch that process.

I then copy the compound clip, double click on the copy to reveal its component clips, and increase opacity of top layer (L).

I will then place this over the (R) clip, and also slide it to the left in the video frame.

Unfortunately, the change in top layer opacity in the copied compound clip has also applied to the original compound clip, so there is no difference between L and R frames.... both are showing the top, or L layer. (the lower layer of the lower compound clip which is camera R, has a noticeable colour and exposure difference and would be quite obviously different if visible beside the L compound clip)


am I approaching changing the opacity incorrectly? The reason for using compound clips is to be able to conserve registration for L + R images, when separated and put on each side of the frame...


here is a link to review process


https://youtu.be/sVlQBDbTzfE


Oct 8, 2019 12:10 AM in response to Luis Sequeira1

Thanks for your patience Luis! I have created a compound clip in one project, where I lined up the two layers for L + R. I then copied and pasted into another project where I distorted the compound clip to conform to the compressed format of side-by-side 3D video (occupying the R side of frame). I then copied that compound clip, did clip > reference new parent clip, then adjusted opacity in new compound clip, to reveal L video, and slid it over to occupy L side of frame.



Oct 8, 2019 8:36 AM in response to marten berkman

Wow, you seem to have nested compound clips, three levels deep.

It is hard to follow, but it appears to go like this.


"beaver dam medium clip R": a compound containg another compound, "beaver dam clip", which in turn contains another compound, "beaver dam R"


My guess is that you have to go inside these nested compounds and make sure that anything you want to modify is referencing a new parent clip.


But I wonder if you need all that nesting, and, if you do, I humbly suggest some form of nomenclature that makes it easier to know where one stands among all these clips.



Oct 8, 2019 9:15 AM in response to Luis Sequeira1

Aye it is complex, and makes me wonder whether I should be trying a different program that has stereo 3D editing built in. I come from using FCP7 with nesting sequences which worked really well and fast. I did reference new parent at the root level of creating a compound clip, and then two compound clips are included beside each other in the project with squeezed windows for stereo side-by-side presentation.


I'll keep experimenting and let you know if I find a solution . Thanks for your attention and thoughts!

Oct 8, 2019 9:20 AM in response to marten berkman

I wonder at which level exactly you would need to do the Reference New Parent Clip thing.

I think there lies the crux of the matter.


Say you have a "level 1" clip L1 which contains two clips at "level 2", say L2A and L2B.


You make two copies of L1, and do Reference New Parent Clip on the second copy.

Then you go inside this copy and make changes to L2A, for example.

My guess is that you should do Reference New Parent Clip for this copy of L2A as well.


I hope this makes sense.

Question marked as Best answer

Oct 9, 2019 10:06 AM in response to marten berkman

Hi Luis,


Well I found a solution, so much simpler, I was making it more complicated than it had to be.


layer L + R clips over each other in project time line


line up clips using transform tools in inspector.


duplicate clips, so one pair follows the other in time line


turn opacity to zero in top layer of one pair... so one pair reveals L layer, other pair reveals R layer


THEN turn each pair into separate compound clips, and Clip > new parent


apply transform to each so they are compressed to left and right side of frame for side-by-side 3d output (transforms preserved as presets)


and voila!


trick is to create compound clips after clips are duplicated...then they remain independent...


i still think it should be possible to apply changes independently to compound clips which have a new parent, but looks like the guarantee of independence is duplicating the clips before compounding.


thanks for your interest, suggestions and patience!

How to make changes to one copy of a compound clip independent of the other copy?

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