-
Layer misalignment when using track matte & gaussian blur
I’m using Premiere Pro CC on a Mac Pro, editing a large project shot on a couple of different RED cameras so an annoying mix of different ratios of 4K which I’m editing natively. I’m using 4096 x 2304 (16:9 ratio) for the edit.
I’m using shapes drawn in the title tool paired with a track matte and gaussian blur layer to blur out license plates on the film, but it’s causing some bizarre problems that I’d like to see if anyone else has experienced and if so, how can I fix it?
Basically when I apply the track matte and gaussian blur effect at the end of the process (after I’ve animated the shapes to track the movement of the license plates), the blurry shapes totally shift position and even size to the original white shape masks, which makes it very difficult to apply the effect in a quick and straight forward way. I have to apply the blur and track before animating which slows down the process and because the size seems to change too it means I have to reposition the shapes in the title tool blindly because they revert to their original position when I open it up!
It’s very frustrating as you can imagine. Does anyone know what the problem might be? Is it just my old and weary Mac Pro or is there a fix?
Thanks
Mac Pro Specs:
Early 2008 model
2 x 2.8GHz Quad Core Intel Xeon
16GB 800MHz DDR2 FB-DIMM RAM
ATI Radeon HD 5770 1024MB graphics card
OSX 10.9.1 (We don’t have internet access in the edit suite so I only update periodically) -
8 Replies
-
Try nesting one of the animated mattes and using that nested clip as the target of the track matte effect. Sometimes nesting a clip can “lock-in/commit” the effects applied to it.
-
I gave that a go and it still didn’t fix the problem unfortunately.
-
Hi David,
I think you’re hitting a bug in 7.2.2. This is fixed in the upcoming version of Premiere Pro CC. BTW, accomplishing this task is much easier in the next version. You won’t need to use track mattes.Thanks,
KevinKevin Monahan
Support Product Manager—DVA
Adobe After Effects
Adobe Premiere Pro
Adobe
Follow Me on Twitter! -
Does the same thing happen if you use a mask created in Photoshop? What if you just crop a white layer down to the size you need and track and blur that? Just wondering if it’s something to do with the shape coming from the title tool.
-
Try building the matte, add tracking info, then nest this. Then add the blur and track matte key to the fill clip.
I found that the track matte key seems to ignore/corrupt position keyframes on title tool elements by the track matte key. See if adding the track matte key absolutely last clears things up. It did for me, but only if I had nested the matte clip itself.
-
Sorry for the delayed reaction – I’ve been off doing something else so didn’t get chance to try your suggestions. Neither of Paul’s suggestions worked I’m afraid. I need to upgrade I think and face the fact that I’m going to have to cart the hefty old Mac Pro over to an office with internet access!
I ended up doing it the slow and painful way after all for this film.
Thanks anyway guys.
-
Hi David,
There’s an update coming very soon with a fix in there that might work for you. Stay tuned.Thanks,
KevinKevin Monahan
Support Product Manager—DVA
Adobe After Effects
Adobe Premiere Pro
Adobe
Follow Me on Twitter! -
Hi all. I have had exactly the same problem — I’m on Premiere Pro 8.1 and the bug is still there.
Symptoms: you apply a mask to an effect (any effect, any mask) and immediately the image is offset vertically and horizontally by a long way. It often gets cropped in the process, and there is no way to bring it back into the right position.
Solution: nest the clip in a sequence WITH THE SAME DIMENSIONS AS THE CLIP. Then you can apply the mask in that sequence, and bring it in to the one you were working on. Clumsy, but it works. The bug seems to be caused by a sequence with different dimensions from the clip you’re working on (something that is often the case with SFX composites).
Hope this helps.
Reply to this Discussion! Login or Sign Up