FAQ relating to Adobe After Effects Render Process
Here are several questions and answers relating to After effects render process: how to render, how to render faster, render compression, render codecs….
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After Effects Render Process – Resolution, File Format & Compression
Tips relating to file format, file codecs….
- quick time, h264, full hd 1920×1080 for best quality (looks fantastic at big full hd tv screens), or
- mp4, h264, 1280×720 if you need best quality for video hosting sites like youtube.com, vimeo.com etc…
- if you want video for web, but not to play in full screen (just like videos on this website), lower resolution 960×540 (half of full hd), or 640×360 (third of full hd) will be really enough
Please, take alook at this Adobe FAQ Article “What is the best format for rendering and exporting from After Effects?”
Adobe After Effects – Rendering
How to render in After effects ?
Once you finished to customize your render composition, simply use the Menu Compositions / Add to Render Queue (CTRL-M).
The After Effects “Render Queue” Panel should now be displayed. Define the various render settings (“Output Module”, “Output To”, “Render Settings”) before clicking on the Render Button.
This page comes with detailed informations about defining these various render settings (Read the following paragraphs).
Adobe After Effects - Basic Rendering Knowledges
Read the Adobe Blog Post about this performance tip
Rendering is the creation of the frames of a movie from a composition. The rendering of a frame is the creation of a composited two-dimensional image from all of the layers, settings, and other information in a composition that make up the model for that image. The rendering of a movie is the frame-by-frame rendering of each of the frames that make up the movie (…)
Read (there is also an interesting video about this subject, on this post) the Adobe After Effects – Rendering with the After Effects Render Queue Panel article.
After Effects Render Process – Faster Render & Render Better
Tips about how to render faster with after effects….
Performance tip: Don’t overschedule your processors
Read the Adobe Blog Post about this performance tip
In many cases, performance is improved by using fewer than the maximum number of processors for Render Multiple Frames Simultaneously multiprocessing, even when you have enough RAM for all of the processors.
After Effects is a multithreaded application that can also use other forms of multiprocessing beyond just Render Multiple Frames Simultaneously multiprocessing, and it is possible for the processors to become “overscheduled” if these threads are competing for the same resources as the background processes used for rendering with Render Multiple Frames Simultaneously multiprocessing.
Therefore, the best approach is to begin by using a small number of processors for Render Multiple Frames Simultaneously multiprocessing; and then increase the number of processors used until you find the optimum number for your computer system and compositions.
For an 8-core computer system, the optimum number of processors may be 4 for some compositions, 6 for others, et cetera.
Run your own tests for your own scenarios. Remember: The reason that these settings are preferences is that the optimum values are different for different computers, compositions, and so on. There is no one “right” setting.
Keep in mind that using the Render Multiple Frames Simultaneously multiprocessing feature does not speed up the rendering of all compositions. The rendering of some compositions is memory-intensive, such as when you are working with very large background plates that are several thousands of pixels tall and wide. The rendering of some compositions is bandwidth-intensive (I/O-intensive), such as when you are working with many source files, especially if they are not served by a fast, local, dedicated disk drive. The Render Multiple Frames Simultaneously multiprocessing feature works best at improving performance when the resource that is most exercised by the composition is CPU processing power, such as when applying a processor-intensive effect like a glow or blur.
Performance tip: Don’t starve your software of RAM.
Read the Adobe Blog Post about this performance tip
I find myself giving the same advice over and over on various forums, so I thought that I should say it here, too.
Give your software enough RAM to work.
This means making sure that you’ve allocated enough RAM for each process when using Render Multiple Frames Simultaneously multiprocessing, and it also means setting RAM To Leave For Other Applications to at least 1/4 of installed RAM (preferably more like 1/3).
If you don’t set your Minimum Allocation Per CPU high enough, or if you don’t set RAM To Leave For Other Applications high enough, then you are going to experience the inevitable problems of multiple components both within and outside of After Effects fighting over memory, which slows things down. One of the things that can really kill your performance is essentially telling After Effects to fire up all eight cores in an eight-core machine and then starving those cores of RAM—which is what happens if you set your allocations too low and don’t have much RAM. And if you make the operating system swap RAM to the hard disk because you haven’t given enough RAM for other applications, then you’ve really thrown some serious speedbumps in the way.
It seems that a lot of people have machines with eight processor cores and far too little RAM to feed all of those cores. It is far better to leave some of those processors idle than to try to make them run and then have them shut down because they don’t each have enough RAM to render a frame.
Let’s take an example of a computer with eight processor cores and 24GB of RAM:
For HD, you want at least 2GB for each process; preferably 3GB. And you almost always want to leave at least 2GB for other applications (preferably more, around 1/3 of installed RAM). That leads to some relatively simple math. For an eight-core system with 24GB of RAM, leaving 8GB for other applications gets you down to 16GB. The foreground process takes 1.2 times the RAM allocated for background process, so that is 3.6GB in this case, leaving 12.4GB of RAM. That’s enough RAM for four background rendering processes at 3GB each.
(For RAM previews, there’s the extra detail that the foreground process has a RAM cache that it uses to hold rendered frames. In After Effects CS4, you can give more or less RAM to this cache with the Longer RAM Previews / Faster Rendering slider. If you drag that toward Longer RAM Previews, then you take RAM away from the background processes that do the rendering. In After Effects CS5, this is handled automatically.)
To get the most from After Effects CS4 out of your computer with eight processor cores and a 64-bit operating system, you would have 32GB of RAM. (For After Effects CS5, you can go higher.) If you don’t have that much RAM, then do yourself a favor and set the preferences that I’ve mentioned in this post so that you’re optimally using what you do have, rather than forcing your operating system and applications to fight over scarce resources and thus bog things down.
Also, check out “Improve performance” for some additional tips on improving performance.
Of course, all of the numbers that I give here are just intended as a starting point. Every composition is different, and every computer system is different. The reason that there are Memory & Multiprocessing preferences is so that you can set things as appropriate for your work.
After Effects: how to improve performances
Read the Adobe After Effects Help Article about after effects performances improvements
After Effects 64 bit - RAM and Storage
Read the Adobe After Effects Help Article about after effects RAM Memory and Storage in 64 After effects versions
After Effects Faster Render Tips
Unfortunately, there isn’t any single answer or solution for every person. Computer configurations from user to user can be very different, so in most cases, getting faster render times is a trial-and-error process.
But this quick tip from Randy could be useful:
“Just a quick comment, typically if one has the ability to purchase Quick Time Pro the best render settings are by far using the two programs together. A setting the I’ve found that works amazing is to render out your comp as a RAW uncompressed animation from AE using the .mov and “animation” uncompressed. From there, you can just open the file in quicktime and export from quicktime using the .mp4 with H.264 @ 7000-10,000 kbps and it will still play a 1080p video file without any loss in quality. The power in this is your very first export from after effects as a raw animation will be huge, but Quick Time will make it very small and even able to email as a 1080p video. An example from today, I rendered out a raw animation from AE and the .mov file was 2.8GB. Once I compressed it in Quicktime Pro using the settings mentioned above gave me a file size of 15MB and the file was 1080p with very very little quality changes. The video I compressed using QT Pro was about 1:20 long and still 1080p at 15MB (…)
Another quicktip here on Vimeo:
[videoembed type=”vimeo” width=”640″ height=”360″ url=”https://vimeo.com/41886598″ id=”0″]
Tip from Vladimir:
Some people (like myself) having this annoying problem: when rendering composition render goes pretty fast for some time and after some point just slows down significantly. So my magic solution for all renders I do is basically this:
0. With “magic trick” secret preferences menu set “Purge every 25 frames” – this is permanent step and should be done just once. This helps with slowing with time renders.
And than you just:
1. Press CAPSLOCK
2. Purge all
After I did all those some 30 mins renders dropped to 3 minutes. I know it is most likely was a bug but anyway it helped.
Encoding and compression options for movies
Compression is essential for reducing the size of movies so that they can be stored, transmitted, and played back effectively. Compression is achieved by an encoder; decompression is achieved by a decoder. Encoders and decoders are known by the common term codec. No single codec or set of settings is best for all situations. For example, the best codec for compressing cartoon animation is generally not efficient for compressing live-action video. Similarly, the best codec for playback over a slow network connection is generally not the best codec for an intermediate stage in a production workflow. (…)
Read the complete Adobe After Effects Help Article on this subject.
Huge Output Video File
Read the Adobe After Effects FAQ Subject “Why is my output file huge, and why doesn’t it play back smoothly in a media player?”.
Render As Images Sequence
Read the Adobe After Effects Help Subject “Rendering and exporting a sequence of still images”.
After Media Encoder News. Create H264 and MPEG-2 files
Various considerations for Adobe Media Encoder…
Using Adobe Media Encoder to create H.264, MPEG-2, and WMV
After Effects CC 2014 (13.0) does not include exporters for creating H.264, MPEG-2, and WMV videos directly from the render queue. To create videos in these formats, you should use Adobe Media Encoder.
You can still import videos in these formats into After Effects.
You have two primary options for using Adobe Media Encoder with After Effects to create videos in H.264, MPEG-2, and WMV formats:
- Render and export a losslessly encoded master file out of After Effects to a watch folder monitored by Adobe Media Encoder.
- Send the composition directly to Adobe Media Encoder from After Effects (Composition > Add To Adobe Media Encoder Queue).
Here’s some more detail about these options, including pros and cons of each: Read the Adobe Blog Post about these aspects
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