Activity › Forums › Adobe After Effects › divx rendering prob… pls help..!!
-
divx rendering prob… pls help..!!
Posted by Jatin Makwana on March 29, 2007 at 3:41 pmhi,
I have a 6min edit of mainly animation codec movs in a comp. 1024×768 8bit
I have 20gb free on my hard drive.
When i render this full res to WMV or MOV or AVI – i have no issues with memory or 1024×768 image cache issues.
Only when i attempt to output to divx do i experience this.
I have tryed things like, purging every frame and also various memory combinations in the image cache preference. I
Accountneedsrealnameupdate replied 19 years, 1 month ago 5 Members · 8 Replies -
8 Replies
-
Steve Roberts
March 29, 2007 at 4:09 pmCan you use another app to render a finished hi-res movie to DivX?
Or … DivX might need audio in the file. Did you select audio and video (even if it’s silent) in the Output Module?
Or … DivX might only accept certain frame sizes (multiples of 16?) or frame rates like 15 fps.…. ?
-
Jatin Makwana
March 29, 2007 at 4:32 pmHi,
Yes the project does have audio, and yes I did select audio in the output settings.
1024×768 is an excepted resolution with the divx codec.
I haven
-
Kevin Camp
March 29, 2007 at 4:50 pmthe only thing i can think of is that divx is using temporal compression and needs several frames to create that type of compression, where the other codecs are just rendering and writing one frame at a time.
if there is a setting for the divx codec to set the frequency of frames (often referred to as key frames) that it uses for temporal compression, you might try lowering that number. i know you mentioned that you would like to render once, but it would not be a big workflow hit to render to a lossless codec, setting a post-render action to import. then re-rendering the imported render to the divx codec.
you may even be able to set up you’re divx comp with your other comp already nested in it, then set the lossless comp to render in the render queue with import and replace usage as the post-render action and set your divx comp up to render after that, all in the same queue.
additionally, since 1gb of ram is not that much, if the ram in your 2 pcs are the same, put it all in one pc and see how that works.
Kevin Camp
Designer – KCPQ, KMYQ & KRCW -
Michael Munkittrick
March 29, 2007 at 4:54 pmDepending on the version of DIVX you’re using, the compressor might not be compatible with AE. There were claims on this board almost a year ago that there was a “work around” for DIVX output from AE, but ultimately it was compressed to DIVX externally.
Michael Munkittrick
Gainesville, Florida USA -
Jatin Makwana
March 29, 2007 at 5:30 pmwell i think it has something to do with my project,
i have tried to render this out on 2 pc’s. i dont think anything has been changed on my system.
Whats puzzling me is, why do i only get an image or memory error when i output to divx… not any other.
Thanks
-
Accountneedsrealnameupdate
March 29, 2007 at 8:03 pmI’d definitely recommend rendering lossless (or close to it) and then compressing in a second step. All of the better compressions use interframe compression which after effects does not do a good job of at all, I’ve seen huge differences in filesize and quality rendering to Sorenson (for example) from After Effects compared with compressing later in procoder or squeeze with the same settings. Especially when using two passes in the compressing software, ideally the codec should know not just what was in the last frames but also what is to come to maximize efficiency, after effects just isn’t set up to do that right.
Glennser
Reply to this Discussion! Login or Sign Up