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FORUMS Post Processing, Marketing & Presenting Photos Video and Sound Editing 
Thread started 25 Sep 2011 (Sunday) 02:06
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AE CS5 Render Times? 15hrs for 30min of video?

 
Citizen_Insane
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Sep 25, 2011 02:06 |  #1

This render seems like it's talking longer than it should, what do you guys think?

1080p24 from 5D2
- Remove Grain
- Some simple fades and graphic overlays
- Exporting AVI with Lagarith MT (for import into Premiere)

After Effects CS5

Intel 2500K (stock)
16gb DDR3

CPU is running about 60%
15.1GB of ram used

Are there some settings in the remove grain effect that greatly affect the render time? Should I be converting to lossess with Lagarith before applying the effects? If I can't find a way to optimize this somehow this project is going to take forever, I've got a sold 5-6 hours of footage to edit and render.


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Kento
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Sep 25, 2011 03:46 |  #2

I just rendered a 2.5 hour video with full color grading and motion stabilization in 12 hours, so yeah... 15 hours for 30 minutes seems a little long.

Rendering the final output has me really confused right now too, my laptop which is pretty powerful with an i7 3GHz and 14GB DDR3 Ram is GREAT for the editing process, but it renders the final product reallllyyy slow, it was going to take 30-60 hours to render the same 2.5 hour video. I decided to try my crappy Desktop computer to render it and it only took the 12 hours. Its just a generic Desktop with nothing special, older Quad Core 2.5GHz and 4GB of DDR2 Ram.. I can't figure out why it renders so much faster than my laptop, they both render off of my 2TB external harddrive so the HDD isnt the issue either.

Now I just render everything off the desktop and do the editing on the Laptop.


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Citizen_Insane
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Sep 25, 2011 10:11 |  #3

There's no way a 3Ghz quad w/ 14gb of ram is actually slower than your older computer, it's got to be in the settings somewhere. That's what I'm trying to figure out, what I need to do to optimize the system to run AE well.


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Terjay
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Sep 25, 2011 11:32 |  #4

Here's some tips from the manual: http://help.adobe.com …a-B2D6-C8B4205D4FB7a.html (external link)

Also re/degraining is pretty intensive stuff to do. Do not use OpenGL rendering. Instead of some weird open source codec you could try Quicktime Animation.




  
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Citizen_Insane
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Sep 25, 2011 22:07 |  #5

I turned on mutlithreading (why wouldn't this be turned on by default or autodetected?) and the time dropped to 10hrs 40min. Not as bad. Hopefully I won't have to denoise much of the other footage otherwise I'm going to have to build another computer to help w/ the rendering.


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CalmAsToast
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Sep 27, 2011 23:26 as a reply to  @ Citizen_Insane's post |  #6

Something else to consider; the time estimate at the beginning is rarely accurate. Also, it estimates based on what it is doing at that moment and what it has already done, so if you have a fade in and some other effects at the beginning of your video, the time will show much higher than what it will really take because the estimate it is giving you is based on those things.

I have also seen many times where it will give me an estimate of 20 min for example, after about 12 min, saying it still has 8 min to go it will suddenly finish. I have seen the estimate jump up as well when it hits a section with intensive effects in the middle of the video. So take those estimates with a grain of salt.


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AE CS5 Render Times? 15hrs for 30min of video?
FORUMS Post Processing, Marketing & Presenting Photos Video and Sound Editing 
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