What is the After Effects Disk Cache (2024)

How the Disk Cache in After Effects Helps Your Workflow.

You may or may not have heard of the disk cache in After Effects, but as you’ll come to find out the disk cache is a huge deal in After Effects. In fact it's not just a huge deal, it's a massive deal, and a crucial piece of your workflow.

Whether you've know it or not, you’ve been using disk cache for as long as you've been using After Effects. The Disk Cache is such an essential part of the Motion Design process that we thought it'd be helpful to talk about what disk cache is and how it can help you in After Effects.

What is Disk Cache?

Technically a Disk Cache isn’t just an After Effects thing, it's far more reaching than that, because most software utilizes some type of disk caching. Essentially what disk cache means is that the software holds data that has recently been read and stores it in a cache, so that way when it needs to read it again it can do so more quickly.

How Does Disk Cache Work in After Effects?

When you put together a comp, After Effects stores rendered frames and images using the RAM preview, this is so adjusting and editing of your comp goes more smoothly. AE won't cache frames that can easily be rendered, such as solid colors or text, just frames where composites have taken place and preview rendering is necessary. Now there are two ways that AE is pre-rendering and caching your comp. Let’s take a look at both.

DISK CACHE

  • Saved to: Hard Drive
  • Indicator: Blue Bar

Disk cache just as we mentioned above, where data from the preview render is stored in a cache directory. This allows After Effects to read the data quicker, thus giving you a faster preview. You can see that your comp has been cached to the disk by seeing a blue bar in the time ruler of the Timeline.

What is the After Effects Disk Cache (1)

RAM (RANDOM ACCESS MEMORY) CACHE

  • Saved To: RAM
  • Indicator: Green Bar

After Effects will cache RAM Preview frames within its RAM Cache in the same way that it caches data to the disk. This again is all a way for After Effects to increase its productivity for the user by not having to re-render a comp every single time you hit the spacebar. You can see RAM Cache working by finding a green bar in the time ruler of the Timeline. When you preview your timeline After Effects will move any necessary footage from the disk cache into your RAM Cache for playback.

What is the After Effects Disk Cache (2)

Is Disk Cache and Ram Cache Using Hard Drive Space?

Kinda, both will utilize storage space on your computer. However, RAM preview will store to RAM and be erased when After Effects is closed. Disk Cache will store on your hard drive and will not be deleted when you close the software.

You should also note that over time your cache can get quite large and take up a lot of space on your Hard Drive. However, don’t worry you can clean things up and purge your system of that used disk space.

HOW TO ADJUST YOUR DISK CACHE SIZE

To see just how much space your disk cache is taking up, navigate to After Effects > Preferences > Media & Disk Cache. In the menu you can change the potential size of your disk cache. If you use After Effects a lot you can crank that number up to as much as you want. After Effects recommends that you use an SSD on a separate hard drive from your footage.

HOW TO CLEAR (PURGE) THE DISK CACHE IN AFTER EFFECTS

There are two ways to purge and clear out the Disk Cache. The first is to head up to Edit > Purge > All Memory & Disk Cache. Just be aware that this will purge your RAM Cache as well. The second option is going to be to head over to Preferences > Media & Disk Cache. Here you’ll find an option to “Empty Disk Cache.”

What is the After Effects Disk Cache (3)

HOW TO CLEAR (PURGE) THE RAM CACHE IN AFTER EFFECTS

If you need to purge your RAM Cache before you quit After Effects then head up to Edit > Purge > All Memory. This will take care of the RAM Cache, just be aware that you’ll lose your preview progress and you’ll need to run RAM Preview again.

What is the After Effects Disk Cache (4)

SO... IS THIS INFO REALLY GOING TO HELP ME OUT?

A big part of becoming a great designer in After Effects is working efficiently and quickly. One of the ways you can focus on creating stuff instead of waiting on your computer to render is by utilizing Disk Cache and RAM Preview to your advantage.

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What is the After Effects Disk Cache (2024)

FAQs

What is the disk cache in After Effects? ›

Disk cache just as we mentioned above, where data from the preview render is stored in a cache directory. This allows After Effects to read the data quicker, thus giving you a faster preview. You can see that your comp has been cached to the disk by seeing a blue bar in the time ruler of the Timeline.

Is it safe to delete After Effects disk cache? ›

Yes, it's generally safe to delete cache files in After Effects. Cache files are temporary data used to speed up project rendering and previews. Clearing them can free up storage space and resolve issues like corrupted cache data. After Effects will automatically regenerate cache files as needed.

What is the recommended cache size for After Effects? ›

It actually depends on how much space you want to use as cache and how mush work you have when using Ae. Normally your default is no more than 1–2GB, but for me, based on the amount of work I do on Ae, I always change it to 5GB, that way I have more than enough to use for any small projects.

What is disc cache? ›

Disk cache is a temporary computer memory that stores frequently used data. It essentially acts as a bridge between the slower, non-volatile storage (like hard drive) and the computer's main memory (RAM). Such cache ensures that commonly accessed information is readily available.

What is a disk cache folder? ›

The disk cache stores resources fetched from the web so that they can be accessed quickly at a latter time if needed.

Should I delete Disk Cache? ›

You should occasionally clear the cache on your Windows 10 computer, to help your system run faster and reclaim disk space. A cache is a set of temporary files used by a program or the operating system. Sometimes, the cache in Windows can slow down your PC, or cause other problems.

Is it bad to delete Adobe cache? ›

If you have older projects you have completed, it is a good idea to delete these files to save storage space and to keep your computer's hard drive tidier. Keep in mind that a delay also occurs after you delete all cache files and then open a current project as the files need time to rebuild.

What does purge all memory and Disk Cache After Effects? ›

purge all memory and disk cache will cause all of the temporary files to be deleted. temporary can consist of: pre-rendered layers, ram previewed comps, copied path/properties etc.

How much cache is enough? ›

A good base for the L1 cache is 64 KB per core. You can find this out by dividing the total amount by the number of cores in the CPU. A 256 KB L2 cache per core is perfectly acceptable, but gamers might benefit from 512 KB per core. And anything between 32 and 96 MB of L3 cache is perfectly fine for most purposes.

How do I make After Effects cache faster? ›

Optimize Disk Cache: After Effects utilizes a disk cache to store temporary files, which can significantly speed up rendering and previewing. Go to Preferences > Media & Disk Cache to configure the disk cache settings. Increase the disk cache size and choose a fast and dedicated drive for the cache location.

What is the best storage for After Effects? ›

SSDs are great for your working project files and applications. Try to use an NVMe for the disc cache, and even for the OS drive if you can. Don't use an HDD when working on a project After Effects. Make sure your GPU drivers are up to date, and use the “Studio” drivers if you have an NVIDIA card..

Can I delete Adobe After Effects disk cache? ›

Open your After Effects project. Go to “After Effects” (“Edit” on WIN) > “Preferences” > “Media and Disk Cache…” In the window click “Empty Disk Cache…” and “Clean Database and Cache” Here you can also change the cache size.

What is the advantage of disk cache? ›

Disk cache: This is a portion of main memory (RAM) used to store data that has been recently read from or written to a disk, such as a hard disk drive or solid-state drive. Disk caching helps reduce the number of read and write operations to the disk, improving the overall performance of the system.

What is a disk cache in After Effects? ›

The disk cache contains frames from all projects you've opened in the same or earlier sessions, so disk-cached frames from one project will be retrieved for reuse in other projects that need those same frames. As the cache is scanned, blue marks gradually fill in on your timeline.

What does purge all memory and disk cache do in AE? ›

purge all memory and disk cache will cause all of the temporary files to be deleted. temporary can consist of: pre-rendered layers, ram previewed comps, copied path/properties etc.

What does clearing the cache do? ›

When you use a browser, like Chrome, it saves some information from websites in its cache and cookies. Clearing them fixes certain problems, like loading or formatting issues on sites.

Is it safe to delete media cache files in Adobe? ›

If you have older projects you have completed, it is a good idea to delete these files to save storage space and to keep your computer's hard drive tidier. Keep in mind that a delay also occurs after you delete all cache files and then open a current project as the files need time to rebuild.

How to change After Effects disk cache folder? ›

CHANGE DISK CACHE LOCATION

I typically have my project files on an external SSD and my disk cache on my local storage. To change your disk cache location navigate to After Effects > Preferences > Media and Disk Cache and select 'Choose Folder' under Disk Cache.

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