
The Text Selector Expression is arguably the most elusive Adobe After Effects Feature and yet it's its most powerful Text Feature
Roland Kahlenberg April 27, 2025
0 Comments
This blog aims to provide insights and samples into the mystical world of Text Expression Selectors. Readers are assumed to know how to commit to basic application and adjustments using the Text Tool.
Text Expression Selectors are like mysterious orbs in the sky that everyone sees but only few speak about.
With the Range and Wiggly Selectors, we take note of two critical observations
(1) what gets selected is quite easy to manage and
(2) how each selection is affected by Text Animator Properties is not as easy to manage.
And it is the latter where the Text Expression Selector shines.
Before we proceed, let's define Text Objects Text Object : A group of one or more text characters defined by the Based On Parameter. The Based On Drop Menu provides 4 Group Types Characters, Characters Excluding Spaces, Words and Lines.
You may also create your own Text Objects using any one of these as the basis for grouping.
With Range Selectors, how each Text Object is affected and how it animates involves a complex formula comprising of the parameters in the Range Selector and Advanced Sections of the Text Animator Group.
With the Expression Selector, it's actually a lot easier to manage how Text Objects are affected by the Text Animator Property. The tricky part is that you have to write your own selection and animation functions which are built-into Text Expression selectors that others provide for free or as a paid product.
What you will want to take away from this blog is that Text Expression Selectors allow for more control over how each Text Object is affected by Text Animator Properties.
Let's take a look at a few Text Expression Selector examples because showing by example is always a good way for visual stuff.
What I'd like you to take away from watching this video is to appreciate how text characters are selected and animated with Expression Selectors and how the results here differ from results obtained with using Range and Wiggly Selectors.
Some contents or functionalities here are not available due to your cookie preferences!
This happens because the functionality/content marked as Google Youtube uses cookies that you choosed to keep disabled. In order to view this content or use this functionality, please enable cookies: click here to open your cookie preferences.
Text Expression Selector Samples deployed using AeXpression Notepad, a soon-to-be-released After Effects Script UI. Can't see this video? Click here! If you are in Safari, hover over Safari in your menu, click settings for creativecow.net and toggle the Auto-Play to Allow All Auto-Play .
To add some brain work into the mix, pause at appropriate samples and ask yourself how you would re-create a sample using the Range and/or Wiggly Selectors.
Chances are you will not be able to replicate most, if any of these Text Animations if you used Range and/or Wiggly Selectors. And with this, the motivation is for you to start venturing into the world of Text Expression Selectors, if you have not done so.
Some contents or functionalities here are not available due to your cookie preferences!
This happens because the functionality/content marked as Google Youtube uses cookies that you choosed to keep disabled. In order to view this content or use this functionality, please enable cookies: click here to open your cookie preferences.
Samples of After Effects Expression Text Selector. These and many others will be released either together with AeXpressions NotePad or shortly thereafter. Can't see this video? Click here! If you are in Safari, hover over Safari in your menu, click settings for creativecow.net and toggle the Auto-Play to Allow All Auto-Play .
Text Selectors in After Effects Most After Effects users are familiar with its Text Tool and its Range and Wiggly Selectors. However, only a tiny percentage have used the Text Expression Selector.
Advanced After Effects users will have used Expressions in their Range and Wiggly Selectors and even the Source Text Property. Now, let's take a look at the Text Expression Selector.
Text Expression Selector Default Text Expression Selector When you first apply the Text Expression Selector to a Text Animator Group, this is the expression that is applied -
selectorValue * textIndex/textTotal
Unfortunately, for almost every user that sees this for the first time, it's a cryptic line of code. So, let's try to clear this up what you see are essentially three reserved variables; they are functions built into the After Effects Expression Engine.
Before we proceed, let's define these variables/functions
selectorValue * textIndex/textTotal
selectorValue : This is defined as a percentage of the value of the Text Animator Property you apply to the Animator Group.
The selectorValue * ratio is calculated for each Text Object on every frame. I use two different ranges for the selectorValue : 0 and 100 or -100 and 100. They provide different results and you should experiment further appreciate their nuances.
The ideal way to experiment is to link/replace selectorValue with a Slider Control while leaving the other variables in the default expression as is.
There is yet another range that is useful and this accounts for the number of Text Objects available. As this is an introductory article, I will leave this use-case for later.
textIndex : This defines the index of a single Text Object regardless of the type of Text Object selected with the Based On Drop Menu. Each Text Object receives a distinct index.
textTotal : This is the total number of Text Objects based on the Based On Parameter.
Now, let's proceed with some hands-on work
Most recent headlines
05/01/2027
Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...
01/06/2026
January 6 2026, 05:30 (PST) Dolby Sets the New Standard for Premium Entertainment at CES 2026
Throughout the week, Dolby brings to life the latest innovatio...
02/05/2026
Dalet, a leading technology and service provider for media-rich organizations, t...
01/05/2026
January 5 2026, 18:30 (PST) NBCUniversal's Peacock to Be First Streamer to ...
01/04/2026
January 4 2026, 18:00 (PST) DOLBY AND DOUYIN EMPOWER THE NEXT GENERATON OF CREATORS WITH DOLBY VISION
Douyin Users Can Now Create And Share Videos With Stun...
27/03/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
27/03/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
27/03/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
27/03/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
27/03/2026
At NAB Show 2026, Net Insight will showcase the next evolution of Nimbra Edge, its orchestration and control layer designed to manage live media services across...
27/03/2026
Harmonic (NASDAQ: HLIT) today announced powerful new innovations that further elevate the company's sports streaming solution. The advanced capabilities enh...
27/03/2026
Bitmovin, the leading provider of video streaming solutions, today announced significant new capabilities for Player Web X, its next-generation web video player...
27/03/2026
Riedel Communications today announced that Czech-based production company CS live has equipped its newest outside broadcast (OB) van with an integrated Riedel i...
27/03/2026
130 Industry Experts Confirmed as Show Celebrates its 10th Anniversary
MPTS, the UK's largest and most influential event for the media, production and tech...
27/03/2026
Grass Valley today announced the successful completion of a major live production deployment with NVP, a leading European media company specializing in live spo...
27/03/2026
Showcases resilient solutions for satellite-to-IP migration, REMI and hybrid live production
Appear ASA (Appear, OSE:APR), a global leader in live production t...
27/03/2026
San Francisco, California, March 2026 - Microsoft Ignite, a major annual conference hosted by Microsoft for developers, IT professionals, partners and business ...
27/03/2026
Clear-Com is proud to highlight its support for worship teams through professional communication solutions, with the deployment of its EQUIP wireless system a...
27/03/2026
Orban Collaborates with Sage on Virtualized EAS Technology Demo
Brie Clayton March 26, 2026
0 Comments
Sage Alerting Systems (SAS), in cooperation wit...
27/03/2026
Berklee Alums Bring GIANT to Broadway Brian and Dayna Lee BM '13 met and fell in love at Berklee, and now their production companys first Broadway debut i...
26/03/2026
Extron and Audio-Technica have announced that their Design Solutions devices, Ce...
26/03/2026
SPORTEL Asia took place March 24-25 at the Orchard Hotel Singapore, drawing 370 participants representing more than 220 companies from 35 countries. Approximate...
26/03/2026
LTN will demonstrate satellite-to-IP migration solutions for broadcasters, cable networks, MVPDs, and station groups at NAB Show 2026 (Booth W2100).
The C-Ban...
26/03/2026
The Seattle Mariners have partnered with Daktronics to install an upgraded outfi...
26/03/2026
The Esports Foundation (EF) has awarded National Team Partner status to organizations and individuals across more than 100 countries and territories for the Esp...
26/03/2026
Telestream has announced expanded integration between its Vantage workflow platf...
26/03/2026
FOR-A Corporation has announced a partnership with Nippon TV and NVIDIA to distr...
26/03/2026
CBS Sports and the WNBA have expanded their partnership through a new long-term, multiplatform rights agreement. CBS Sports will feature up to 20 regular-season...
26/03/2026
Zac Brown Band will star in the Sunday Night Baseball show open on NBC and Peacock, NBC Sports announced. The open was filmed at American Family Field, home of ...
26/03/2026
Major League Baseball opens the 2026 season with nationally televised games across multiple media partners. Fans can visit MLB.com/Watch for a complete schedule...
26/03/2026
DIRECTV has announced an agreement to carry nine new MLB-operated team channels, covering the Cincinnati Reds, Detroit Tigers (Detroit SportsNet), Kansas City R...
26/03/2026
Nationals.TV, the Washington Nationals' local broadcast channel, is now avai...
26/03/2026
Starting Thursday, March 26, MLB.TV will be available on the ESPN App, giving fans access to more than 2,000 out-of-market regular season games. Fans can also r...
26/03/2026
Spotify's partnership with NAVER, Korea's leading digital platform, is built around one simple goal: making it easier for listeners in Korea to discover...
26/03/2026
Exclusive to ComposerCloud for first month
Sample library and virtual instrument gurus EastWest have announced the upcoming release of a new virtual drum i...
26/03/2026
Friday 27 March
Friday 27 March will mark Dynamic Range Day 2026, the annual day of online activity that was started in 2010 by mastering engineer Ian Sheph...
26/03/2026
Includes four separate instruments
Max Richter's SRM Sounds venture have just announced their fifth release, ASMR Choir. Captured at the main live room ...
26/03/2026
The National Film and Video Foundation (NFVF), an agency of the Department of Sport, Arts and Culture (DSAC), has been tasked with administering the Sixth Presi...
26/03/2026
By Matt Klein
Hello to everyone reading this - whether you're a current YEP, HPA member, or just YEP-curious. I'm Matt Klein, one of the co-chairs of t...
26/03/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
26/03/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
26/03/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
26/03/2026
28 participating companies, from start-ups to blue-chips, lead the UK Group as part of the GREAT Britain and Northern Ireland presence across all the Halls at N...
26/03/2026
Arkona Unveils BLADE//planner and Major Usability Enhancements at NAB 2026
Brie Clayton March 26, 2026
0 Comments
New graphical configuration tool and...
26/03/2026
Bitfocus showcases complete control at NAB Show 2026
Brie Clayton March 26, 2026
0 Comments
Continuing development drives advances in security, availa...
26/03/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
26/03/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
26/03/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
26/03/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
26/03/2026
Nevion introduces powerful new Panel Builder to enhance VideoIPath broadcast con...