Strange Motion Blur problem....


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Strange Motion Blur problem....
by jimmy bee on Dec 18, 2007 at 2:23:28 pm

I'm hoping someone can help...

I'm doing a camera move on a simple 3000x3000 solid with an add+subtract mask (it's an outline triangle) but at certain point of the camera move the layer disappears - almost like opacity has been switched, but hasn't!? If I switch off motion blur for the comp, or just that layer it reappears.

Any ideas?

*Production Studio Premium CS2 / *Combustion 3 / Mocha v1
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Re: Strange Motion Blur problem....
by Dave LaRonde on Dec 18, 2007 at 4:25:46 pm

Double check your camera move. Perhaps your big solid is obscuring those mask layers momentarily.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV

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Re: Strange Motion Blur problem....
by jimmy bee on Dec 19, 2007 at 1:35:14 pm

Nah, the masks were on the big solid itself..

I sorted it by restarting AE and then hitting preview again - worked this time..Odd!?!

*Production Studio Premium CS2 / *Combustion 3 / Mocha v1
-------------------------------------
Win XP Pro SP2 / Intel P4 3GHz / 2GB RAM / GeForce FX5200 / DeckLink Pro / Roland DS-5 monitors / Sony BVM-20G1E / DVS SDI Clipstation / Wacom Intuos 3 A4 / 110GB boot/80GB media/600GB RAID-0

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Re: Strange Motion Blur problem....
by Aharon Rabinowitz on Dec 19, 2007 at 3:10:17 pm

Whenever a restart fixes the problem I think it's probably some sort of weird ram issue. You can always try Edit > Purge > Image cache (or All) to empty out the ram that AE is using. This may help you avoid a restart.

And for renders, go into the preferences and into the secret menu and set it to dump the ram cache every 15 or 30 frames.

Watch this short video for more info:

http://library.creativecow.net/articles/rabinowitz_aharon/workflow_2.php

Aharon Rabinowitz
Email: arabinowitz (AT) yahoo (DOT) com
All Bets Are Off Productions, Inc.
Creative Cow After Effect Podcast
Internet Killed the Video Star: A Guide to Creating Video for the Web

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Re: Strange Motion Blur problem....
by jimmy bee on Dec 24, 2007 at 7:17:18 pm

Thanks Aharon, I did try the purge and dump first but no joy. It must have been some bizarre quirk exclusive to that project. All done and dusted now though...so to the depths of an archived DVD-R you go!...

*Production Studio Premium CS2 / *Combustion 3 / Mocha v1
-------------------------------------
Win XP Pro SP2 / Intel P4 3GHz / 2GB RAM / GeForce FX5200 / DeckLink Pro / Roland DS-5 monitors / Sony BVM-20G1E / DVS SDI Clipstation / Wacom Intuos 3 A4 / 110GB boot/80GB media/600GB RAID-0

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