Magic Mask bug when change video position

Hello,

when using the new magic mask on the color page to put a mask on an object - and then on the edit page change anything regarding the position of the video (X/Y, Zoom, angle…) the video/object dissapears.

When using the „old“ magic mask - then it‘s working.
Is there something like a workaround?

This is expected behavior, since you're changing the clip you tracked.

All you need to do is press the tracking button again, and it will retain all the masking you did previously.

Hello Sir,

thank you for your reply.
I tried to track again and it did not help - it´s moving the video IN the mask and not the mask itself.

As I said with the old magic mask everything is working so I think something must be wrong here ?

I just made a video to let you see what I mean exactly. Also I forgot to mention that im doing the mask on a "freezed frame" so the should be no tracking needed I think ?

In the first part of the video i add the new magic mask which don´t work.
At the end im doing the same with old magic mask and its working.

Here the video:

Thank you

The mask demonstrably gets messed up whether it’s 2 or 1 from what I can see.

Because of this, I don’t mask first, I move my subject first. In order to do this, turn down the opacity on your subject clip to 50%. Move it to where you want, including key frames. Make sure to turn the opacity back up to 100% when finalizing the key frames. Then do your masking.

Thank you for your reply again!

True, the mask always get´s messed up.. doesn´t matter if its the new or old magic mask
The thing is - with Magic Mask 1 it just looks like it´s messed up but it's only a visual bug - If you turn ON/OFF the Transform section in inspector on the edit page - the video/mask will be shown as it should be.
This problem also has been in Davinci 19 - but with this workaround you can at least work with it.
With Magic Mask 2 it´s not just a visual problem, it´s a problem with the mask itself - so that workaround is not working.

I also tried your suggestion with keyframe the video and mask it after:
Its working with Magic Mask 1, but not with Magic Mask 2...

I think there´a general problem with the Magic Mask 2:
I tried many things now to get it work but everything I tried didn't solve the problem.
So my theory is that as soon you have any keyframes on your video on which you apply the magic mask 2 - it will NOT work.

Hmm I haven't run into this problem so far, but I will try to recreate it and see if I can find a fix. Sorry for the late reply!

You don‘t have to be sorry, thank you for the reply anyway!

I‘m wondering about if i‘m the only one facing these problems, a friend of me which also using Davinci got the same problem and has no workaround.

Best regards

I just experienced a similar issue. I masked and tracked the subject and then went to scale it for positioning behind another subject. The second I would touch any of the transform tools the whole magic masked video clip would go blank and be solid black. Couldn't undo or anything, if I tried ctrl-z it would undo what was all previous to the transform attempt yet video would still be black and unusable.

Here is about the same result. This was just a quick slap together clip. Just seems like an odd behavior for something simple although I could be doing something wrong as I am relatively new to Davinci but not compositing software. ( which I could mask and scale afterwards in ) But this is the repeated result.

[Peter Chamberlain]

If you modify the source image the magic mask is made invalid. You need to change the order you perform the operations or render the masked image in place.

Here is about the same result. This was just a quick slap together clip. Just seems like an odd behavior for something simple although I could be doing something wrong as I am relatively new to Davinci but not compositing software. ( which I could mask and scale afterwards in ) But this is the repeated result.

What happens if you scale and change position on the Color page using the PTZR controls on the Sizing palette, affecting Input sizing?

As i see i‘m not the only one facing this problem.
If you try to track the mask again after you changed the video position something strange happens.
The mask itself will stay on the exact same position and the position/transform options afftects the clip inside the mask instead of the mask itself.
As i said and as you can see on my video which i‘ve posted - if you use magic mask 1 (old one) it‘s working.
So i would say it‘s definitely a bug and i hope it will be fixed soon - this is making magic mask 2 useless for some people .

Magic mask works somewhat different on the Color and Fusion pages. I can move a clip and do whatever I want with it if I used the Magic mask on the Fusion page. It just works there. And I've always had problems with it when used on the Color page. It needs retracking once you close and reopen DVR, it needs retracking if you move it either in the inspector or with a transform effect. It needs retracking when some effects are used on it. This all renders Magic Mask 2 useless because it's available on the Color page and it always gives such problems when used. This inconsistency bugs me and my colleagues a lot.