Mailing List AE-List@media-motion.tv ? Message #49291
From: Robert Kjettrup <robert@stvmayday.dk>
Subject: Re: [AE] motion blur weirdness - and fixed
Date: Mon, 3 Jun 2013 10:15:47 +0200
To: After Effects Mail List <AE-List@media-motion.tv>
Yes i have seen this if you scale a layer in one axis to below 1% and rotate it. I have also reported it to Adobe as a bug and the response i got from them was that it is know design limitation on AE. 
Well there is an easy fix for it, as you also have found, don't scale below 1%, or set the layer to continious rasterize if it doesn't break any effects render order, or if you really need it to scale below 1%, just set the layer to 1% and put an transform effect on and scale further in this effect... or precomp the scaled layer... or just make your solids smaler to begin with so you dont need to scale it so much. 
So, there is many fixes for this, so i don't hope Adobe spends too much time to fix this bug ;-)

- Robert



2013/5/31 <pixelbot@comcast.net>
I'm seeing some weird screen artifacts when I am applying the native motion blur on some elements I am using for a wipe transition - smaller bar elements are breaking up into 8 segments for 1 frame (I've loaded some frames up on to drop box so you can see) I also tried using the CC Force Motion Blur but I got some weirdness (which is also up on the dropbox) - it is hard to see as put it is just to the right of the middle - here is the dropbox link http://tinyurl.com/In8ld55

my particulars - this is created using solids in AE CS 6 - 11.0.2.11, and I'm seeing this on both a new iMac running OS 10.8.3 and the latest nVIDIA drivers and a 2008 MacPRO running OS 10.6.8.

has anyone seen this or is there a fix - it seem to be when solids are moving off screen and less than 1% in width - In fact I think I just figured it out - when it is less than 1% in width - the image breaks up - If I change it to 1% width, problem goes way (well almost there is one break)- if I change the size of the solid rather than scaling it down so much it fixes it all together.

I know I should file a bug report. if you run into this problem, now you know the fix

timt

 
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