Skip to main content
Known Participant
January 31, 2023
Question

Adjustment Layer + Gaussian Blur + Position Animation - Not Working

  • January 31, 2023
  • 2 replies
  • 3571 views

Hello, 

I will be happy if somebody can help me with this issue. 

 

The task is to blur the personal information on the website, while it's scrolling. 

 

Since there are several places to blur (ex: login, email, address), I decided to add an Adjustment Layer on top of my video and add the Gaussian Blur effect with several masks to blur that info (login, email, address). When the first frame was done, I tried to animate the position of the Adjustment Layer, so all the masks would move together and I don't need to animate them separately. 

 

But when I change the position, my masks didn't move. All masks stay in the same place and start cropping from the bottom or the top. 

But why I can't change the position of all my masks together? 

 

Or what is the fastest way to blur personal information, and track it? 

Thanks!

2 replies

jstrawn
Community Manager
Community Manager
January 31, 2023
quote

Or what is the fastest way to blur personal information, and track it?

 

Drop multiple Gaussian Blur effects onto the still image track item, add a polygon mask to each effect instance, turn up the blurs as needed, then animate Position for the whole track item.
OR
Blur what you need to in Pr, save a flattened version of it, import that into Pr, then animate the whole image as one.

You could also use a nested sequence workflow if your masks + animation are especially complex. But at that point you might be better off using Ae.

ZAYA1Author
Known Participant
January 31, 2023

Thank you!

I'm just not sure I understand option 1 correctly. I don't have a still image, it's a screen recording that scrolling down. 

jstrawn
Community Manager
Community Manager
January 31, 2023

Oh I see, I was looking at that still image example that Warren posted. OK, if the scrolling is baked into the video then you will have to use an adjustment layer, add all the Gaussian Blurs to that (with mask rects) and then animate the Adjustment Layer track item as one.

Warren Heaton
Community Expert
Community Expert
January 31, 2023

Instead of animating the Adjustment Layer Position, animate the Mask Path of the Mask that's been added to the Gaussian Blur effect.

 

While you can nudge the mask manually frame-by-frame once Animation is toggled on, you should be able to use the" Track selected mask forward 1 frame button" to make sure it's tracking frame-by-frame as expected for a few clicks and then switch to "Track selected mask forward".

 

 

Here's a quick video of using Track selected mask forward.

 

Also, you might prefer using the Mosiac effect instead of the Gaussian Blur effect.

 

 

 

ZAYA1Author
Known Participant
January 31, 2023

Thanks for such a quick reply!

Yeh, that's what I'm using now. But as I said I have 4 different masks (for email, login, password, etc.), and the distance between these fields on the website is the same, so I thought would be great to just move the Adjustment Layer with all the masks, instead of moving 4 masks separately. 

Because now I'm doing as you said and I need to track that for 4 masks separately, instead of moving all masks together. That's maybe not a problem for a single video, but I have to edit about 70 videos like this, that will take a lot of time if I'll track all masks separately. 

I'm just wondering if I make something wrong or if that's NOT possible in Premiere Pro to move the Adjustment Layer?

Thanks!

Warren Heaton
Community Expert
Community Expert
January 31, 2023

I'm not in front of Premiere Pro any more, so I can't test this first.

 

Try applying the Transform effect after the Gaussian Blur effect and animating the Position that's part of that effect.

 

This puts the position change after the Gaussian Blur effect rather than before it.

 

Another option is to send these clips to After Effects where Masks on an Adjustment Layer render before Effects and Effects render before Position.