After Effects CPU?

L

Luca1

Limp Gawd
Joined
Nov 14, 2008
Messages
349
Hi there,

Realistically, what CPU would I need to preview in After Effects in a semi real time at least?

I currently have a Xeon 5670 OC'd to 4.2Ghz, and the composition I am trying to preview takes around 10 minutes to load 10 seconds of video to RAM and let me preview it in real time. I am using 16GB of 1600Mhz RAM. SSD's and an Asus GTX 770 OC if that also makes a difference..

What are my options as far as After Effects real time rendering? Or is this something that just isn't done at a prosumer level?

Cheers,
Luca
 
cyclone3d said:
Looks to me like the current version is not able to do real time rendering.

See here for some information:
https://www.reddit.com/r/AfterEffects/comments/39wo2y/demo_of_real_time_rendering_in_after_effects_with/

And here for a tutorial on how to speed up rendering:
http://cgi.tutsplus.com/tutorials/significantly-speed-up-your-renders-from-after-effects--ae-26822
Click to expand...

That tutorial was ridiculously helpfull. Thanks!!

She's purring along now. No where near real time, but much faster.

 
CPU rendering in After Effects is a waste of time. If you want real time previews or more fluid previews, your only option is to get a GPU that AE supports for Raytrace Rendering.

Even an old GTX 580 will knock your rendering times down from 3 hours on a hex core CPU at quality level 3 to 10-20 minutes on the GPU at quality levels higher than 6.

Supported cards list:

https://helpx.adobe.com/after-effects/system-requirements.html#supported-gpus-aftereffects

And yes, even if you're not doing ray trace rendering, having one of these cards will improve your preview speeds in general.

This is a collection of benchmarks using the same project file on several cards.

http://www.loopoutcontinue.com/cuda/

Compare the GPU vs CPU (bottom of the list) times.
 
very nice..how does the cpu compare time wise using your nvidia 770 as cuda vs cpu rendering?
 
primetime said:
very nice..how does the cpu compare time wise using your nvidia 770 as cuda vs cpu rendering?
Click to expand...

While I don't have any time frames to cite, my old lady's i5 3000-3100mhz machine went from hours to minutes when she started using a 950GTX to render.

Her stuff is well above my head.. So I don't know all the details. ...just that she was rendering with her CPU for a while, then I got her the 950GTX as a gift - never got laid so much in one week in all of my life.

NOTE: Adobe's official list doesn't have all the newer cards. But all you need to do is Google "AE Cuda hack" or something like that. ...there is a simple way to make sure AE recognizes your card for GPU rendering.
 
Last edited:
4330thgink said:
While I don't have any time frames to cite, my old lady's i5 3000-3100mhz machine went from hours to minutes when she started using a 950GTX to render.

Her stuff is well above my head.. So I don't know all the details. ...just that she was rendering with her CPU for a while, then I got her the 950GTX as a gift - never got laid so much in one week in all of my life.
Click to expand...

I'd believe it. When I was first starting out doing 3D rendering in After Effects, I couldn't believe how long it would take to render on a Hex core a simple 10 second loop using an extruded font. Not even that complex, just a word, 20 pixel depth, slight tilt and back. 5 hours. So I stuck to classic 3d and flat objects. Didn't look as great but it still did the job. But I needed to improve once i was getting more proficient in AE so I looked back into raytrace rendering.

Despite having a CUDA capable card (GT 640), After Effects wouldn't use it when I added it to the raytrace supported cards list, so I picked up a used GTX 470 (one of the cards specifically mentioned in AE CS6's supported cards list) and didn't expect much.

Loaded up that same project file that previously took 5 hours.

It was done in 7 minutes.

Doubled the quality level.

12 minutes.

CPU rendering is a total fucking waste of time. Go GPU whenever you can.
 
rat said:
CPU rendering in After Effects is a waste of time. If you want real time previews or more fluid previews, your only option is to get a GPU that AE supports for Raytrace Rendering.

Even an old GTX 580 will knock your rendering times down from 3 hours on a hex core CPU at quality level 3 to 10-20 minutes on the GPU at quality levels higher than 6.

Supported cards list:

https://helpx.adobe.com/after-effects/system-requirements.html#supported-gpus-aftereffects

And yes, even if you're not doing ray trace rendering, having one of these cards will improve your preview speeds in general.

This is a collection of benchmarks using the same project file on several cards.

http://www.loopoutcontinue.com/cuda/

Compare the GPU vs CPU (bottom of the list) times.
Click to expand...

After reading this I did some searching and found this article:

http://arkadiusz-leszko.blogspot.com.au/2010/07/speed-up-rendering-in-after-effects.html

The previews are already using Open GL apparently, but then I read

"To enable OpenGL for rendering final output, click the underlined text next to Render Settings in the Render Queue panel, and select Use OpenGL Renderer."

Rendered a clip without Open GL - 12:49. Rendered with Open GL - 5:09.

Thanks muchly :)
 
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