<p>Gaussian Blur is now GPU accelerated, and it's the one that they suggest as the successor to fast blur. They've even included a script to update old projects to use the new blur, look for it in <strong>file>Scripts>UpgradeLegacyBlurs</strong>.</p>

<p>If you want one that uses the same maths as fast blur, i.e. is the most visually similar, then I think Box Blur is the one.</p>

<p>The official announcement is <a href="https://theblog.adobe.com/after-effects-cc-2015-3-in-depth-gpu-accelerated-effects" rel="nofollow noreferrer">here</a>.</p>

CC BY-SA 4.0
2018-07-01T11:34:15.650Z
2018-07-01T11:34:15.650Z
stib
<p>Gaussian Blur is now GPU accelerated, and it's the one that they suggest as the successor to fast blur. They've even included a script to update old projects to use the new blur, look for it i</p>

CC BY-SA 4.0
2023-02-16T17:06:09.463Z
2023-02-16T17:06:09.463Z
Naveen Tamilselvam
<p>Fast blur is marked as Legacy in CC 2018. What's the best (and/or fastest) equivalent to use now?</p>

<after-effects>
Fast blur is marked as Legacy in CC 2018. What's the best (and/or fastest) equivalent to use now?
tomh
# Fast blur is marked as Legacy in CC 2018. What's the best (and/or fastest) equivalent to use now?

(Asked by: username_0 on 2018-06-29)

Fast blur is marked as Legacy in CC 2018. What's the best (and/or fastest) equivalent to use now?

**Tags:** after-effects


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## 2 answers

### Answer by username_1 on 2018-07-01. Score: 2 | Accepted answer

Gaussian Blur is now GPU accelerated, and it's the one that they suggest as the successor to fast blur. They've even included a script to update old projects to use the new blur, look for it in **file>Scripts>UpgradeLegacyBlurs**.

If you want one that uses the same maths as fast blur, i.e. is the most visually similar, then I think Box Blur is the one.

The official announcement is [here](https://theblog.adobe.com/after-effects-cc-2015-3-in-depth-gpu-accelerated-effects).


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### Answer by username_2 on 2023-02-16. Score: 0

Gaussian Blur is now GPU accelerated, and it's the one that they suggest as the successor to fast blur. They've even included a script to update old projects to use the new blur, look for it i


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