Open GL crash question
by Mark Dalzell
on
Oct 24, 2008 at 9:15:52 pm
I just got an error message regarding OpenGL. I was wondering if I need to make any adjustments in AE/CS3. I've never edited HDV with AE so please excuse my ignorance.
Any help would be greatly appreciated.
Regards.
Mark Dalzell
Here's some info that maybe useful:
Under Preference/Previews:
Fast previews / Adaptive resolution limit = 1/4
Enable OpenGL is checked
Accelerate effect using OpenGL (when possible) selected.
Re: Open GL crash question by Dave LaRonde on Oct 24, 2008 at 9:24:37 pm
You have two things going on here. They're both related to things that Adobe claims that AE supports. But in the real world, AE supports them very poorly:
First, just turn off Open GL every place in AE and forget it exists. Open GL is pretty much useless in AE. You can try it, but as your frustration level rises, you'll probably end up cursing and turning it off anyway. So save yourself the grief and do it now.
Second, beware of using HDV in AE. Here's why:
Dave's Stock Answer #1:
If the footage you imported into AE is any kind of the following -- Native HDV, MPEG1, MPEG2, mp4, m2t, H.261 or H.264 -- you need to convert it to a different codec.
These kinds of footage use temporal, or interframe compression. They have keyframes at regular intervals, containing complete frame information. However, the frames in between do NOT have complete information. Interframe codecs toss out duplicated information.
In order to maintain peak rendering efficiency, AE needs complete information for each and every frame. But because these kinds of footage contain only partial information, AE freaks out, resulting in a wide variety of problems.
Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA
Re: Open GL crash question by Dave LaRonde on Oct 24, 2008 at 9:47:00 pm
Well, as a Mac guy, I'm biased toward Quicktime's Animation codec set to best quality. I even use it on my Windows XP box at home.
If there is such a thing as a Lossless AVI, that would be good too. You don't really need uncompressed files, you need lossless files because you don't lose anything. Like picture quality.
Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA
Re: Open GL crash question by Dave LaRonde on Oct 24, 2008 at 10:18:38 pm
Yes, I'm saying that.
So how do you get the Animation codec? Buy Quicktime Pro for Windows. You get a whole bunch of different codecs. In my mind, it's the best $35 you'd spend in quite some time.
Now, because I'm a Mac guy, I am clueless about the panoply of codecs commonly used on Windows boxes. If you do the bulk of your work for people living in Windows-land, you'd have to consult with someone who knows the territory.
Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA
Re: Open GL crash question by Gyorfi Szilard on Oct 31, 2008 at 1:35:18 pm
Hi
I have a suggestion for a good, free, lossless codec that makes your rendered files much smaller than the animation codec.
I have learned this from one of the tutorials of Aharon Rabinowitz.
It is called Techsmith codec. If you download Camtasia studio5 , the trial version , from www.camtasia.com and install Camtasia to your PC the codec ges installed in all you editing applications.
Now open AE, and at the render settings select, quicktime, than at the quicktime settings select the techsmith codec.
I render my videos using this codec .
Hope it helps you too.
P.S I have the ame problem with my open GL , I work with it off.
Re: Open GL crash question by Kevin Camp on Oct 24, 2008 at 10:12:26 pm
if you can't go lossless or uncompressed, and if you have quicktime installed on you system, quicktime photojpeg is a good free option. i would think that a quality of 75 or so would have little loss for hdv footage...
