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Scaling image: can PPro fill empty pixels from edge color rather than transparency?
Because Adobe killed the garbage matte and is not bringing it back, I need a better solution to creating mattes whose size and location I can animate. I don’t want to learn AE. My idea was to create a large circular matte that almost, but does not quite, fill the my largest frame size, then scale it up to make the matte “disappear” (as it expands to being larger than the frame size) or scale it down to focus on a specific region of the image. The problem is, when I scale it down, the matte no longer fills the frame and what is visible around it should not be visible. Indeed, it should precisely follow the behavior or whatever the matte’s border is doing (being opaque, semi-transparent, red, blue, etc).
In some programs, shrinking an image causes edge pixels to be used to fill in what’s missing, rather than leaving things transparent. Any way to do that in PPro?
Manifold Recording
Pittsboro, NC
https://manifoldrecording.com/ -
13 Replies
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What resolution are you working at?
I’d suggest making the matte oversized…with a ton of border….
when using it in your timeline I’d suggest then using “Scale to frame size” in the clip context menu in the timeline.
this would give you the ability to repo/scale you are looking for I think…
Alex Udell
Editing, Motion Graphics, and Visual FX
Let’s Connect on Linkedin
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For now I’ve made an 8192×8192 matte. When I scale to 30% size it gives me the right sized porthold and when I scale it to 360% size (a 12x total zoom) the porthole expands to reveal the underlying image. But…God help me when I want to render UHD-sized images with clean matte edges after scaling up, instead of down!
The beauty of the garbage matte was that one could simply animate the locations of the handles and it would shrink, expand, or move however was needed. What an amazing new world we live in where such basic functionality disappears with an “upgrade”.
Manifold Recording
Pittsboro, NC
https://manifoldrecording.com/ -
Are you track matting?
What exactly are you trying to do?
Alex Udell
Editing, Motion Graphics, and Visual FX
Let’s Connect on Linkedin
Examples: Retail Automotive Motion Graphics Spots
Example: Customer Facing Explainer Video
Example: Infotainment & Package editorial -
Do you have a screenshot of what you’re trying to achieve? It’s a bit unclear for me. The garbage matte has been replaced by masks and in most cases you can just keyframe a mask on the opacity parameter to achieve the previous effect.
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Here’s a YouTube video showing my attempts to use an 8K x 8K mask. The first two examples work, and the third fails. But really, they all fail, because it should be possible to animate the shape of a mask in PPro, as was the case with the garbage matte.
Manifold Recording
Pittsboro, NC
https://manifoldrecording.com/ -
I am unhappy to report that Adobe Premiere Pro CC 2017 seems to run completely out of gas when I increase the mask size to 12K x 12K. The time it takes to render the video preview jumps from next-to-nothing to 30 minutes for a 20 second video clip. And the alpha computation changes tremendously (probably because software and hardware render are that different, and I’ve really never noticed because the idea of using software-only render for RED media is such a ridiculous proposition.
More and more it looks to me like the answer is “Use AE. Premiere Pro is not designed to support features like resolution-independent, animatable masks.”
Manifold Recording
Pittsboro, NC
https://manifoldrecording.com/ -
Try animating the mask shape keyframes, rather than the Scale property. Or the Mask Expansion property. It looks like you’re trying to use a Color Matte with partial transparency, and animating the Scale property of the Matte rather than the mask itself?
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Please tell me how to access mask shape keyframes! Thatxs really what I want. I don’t see how mask expansion does what i want. Its for featering, not actual scaling.
Manifold Recording
Pittsboro, NC
https://manifoldrecording.com/ -
I take it back…mask expansion is a great answer, but only in the case that the mask is relatively near the center of the frame. With a mask expansion of -220, I can shrink the mask down to the size I want, and with an expansion of 900 I can get it to expand past the edges of the frame. But if the mask is near the edge, not near the center, the 1000 max value of mask expansion is not enough to expand past the far edge of the frame. (It barely expands past the center, to be honest.)
If I could animate the center point of the mask, that would solve my problem. But I don’t see any way to do that.
Manifold Recording
Pittsboro, NC
https://manifoldrecording.com/ -
Just enable Mask Shape keyframes. Then drag the center point to where you want. Mask Shape encompasses size, shape, and position.
You need to read up on how masks work in Premiere. The documentation has basically everything you need to know.
https://helpx.adobe.com/premiere-pro/using/masking-tracking.html
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