
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 ...
04/08/2026
Dalet, a leading technology and service provider for media-rich organizations, t...
04/07/2026
April 7 2026, 19:00 (PDT) Detective Conan: Fallen Angel of the Highway Opens in...
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
To celebrate the opening of its new showroom and office, Lightware UK hosted a dedicated launch event at the new London location. The event welcomed partners, c...
01/05/2026
Choice without compromise
The broadcast industrys transformation is accelerating, and traditional broadcasters are having to fundamentally reinvent how they o...
01/05/2026
Beam Dynamics will return to MPTS 2026 with its asset intelligence platform, helping systems integrators, live production teams, media facilities and profession...
01/05/2026
Best-in-class UX design and rapid, scalable delivery for next-generation viewing experiences
Leading video software provider, Synamedia, today announced a coll...
01/05/2026
Compact new cforce MAX lens motor brings unrivaled speed and responsiveness to t...
01/05/2026
Panavision welcomes Fritz Heinzle as Vice President of Sales
Brie Clayton May 1, 2026
0 Comments
Heinzle will support Panavision's global growth s...
01/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
01/05/2026
LONDON, APRIL 30, 2026 The Post Republic London's Re-recording Mixer and Dialogue Editor Dan Johnson has built a reputation for clean, emotionally resonan...
01/05/2026
Adobe Unveils Powerful New Innovations in Photoshop & Lightroom
Deepa Subramaniam April 30, 2026
0 Comments
Your most tedious creative tasks just got ea...
01/05/2026
Berklee Partners with Santander US to Establish Global Opportunity Fund The $400,000 grant offers students access to experiential learning opportunities withi...
01/05/2026
Student Spotlight: Keziah Thomas The Indian composer, who was named the 2026 student commencement speaker for Berklee College of Music, talks about how shes p...
01/05/2026
RT Sport awarded first pick free-to-air on Wednesday nights
Champions League and Super Cup finals
Highlights on Wednesday nights
RT today (Thursday 30 Apri...
01/05/2026
January 5 2026, 18:30 (PST) NBCUniversal's Peacock to Be First Streamer to ...
30/04/2026
The Professional Women's Hockey League (PWHL) concluded its third regular season on Saturday, reporting growth across attendance, viewership, digital engage...
30/04/2026
NBC Sports will air national MLB coverage on Sundays beginning May 3, with MLB Sunday Leadoff on Peacock and NBCSN at 12:30 p.m. ET, followed by the debut of th...
30/04/2026
Clear-Com has appointed Brian Grahn as Market Outreach Manager of the Americas and Ben Turnwell as Business Development Manager for EMEA live.
Grahn joined Cle...
30/04/2026
ARRI has introduced the cforce MAX, a new lens motor for the Hi-5 lens control system. The cforce MAX is twice as fast as the cforce plus motor it replaces whil...
30/04/2026
Knuerr, Voxtronic, and IHSE will jointly present an integrated control room solu...
30/04/2026
The CW Network and ESPN have announced an agreement to make the ESPN App the exclusive streaming home for all CW Sports live events. CW Sports will continue to ...
30/04/2026
Ed Sheeran's The Loop' tour launched in Auckland in January 2026 before moving on to Australia, with South America and the United States to follow late...
30/04/2026
Audinate has announced Dante Preset Creator, a free online tool for configuring Dante network settings before hardware is available on site. Presets created in ...
30/04/2026
Yahoo Sports has announced the appointment of Jarrod Schwarz as General Manager of Yahoo Sports. Schwarz will oversee product, design, and technology; revenue a...
30/04/2026
Nielsen has released a new report, Get Ready with Media Intelligence: 2026 FIFA World Cup Edition, examining U.S. soccer viewership trends, fan engagement, and ...
30/04/2026
USA Lacrosse and SportsEngine have announced an expanded partnership, naming Spo...
30/04/2026
Telos Alliance will participate in the 2026 Media Production and Technology Show (MPTS), taking place May 13-14 at Olympia London. Rather than exhibiting from a...
30/04/2026
The global streamer buys the U.S. DTC platform solutions provider for a reported...
30/04/2026
Tigo Sports, Paraguay's leading sports broadcaster, has upgraded its video infrastructure with Ateme solutions for live encoding, multiplexing, and signal c...
30/04/2026
World Rugby and IMG have announced a long-term media rights partnership focused on growing rugby in the United States ahead of the Men's and Women's Rug...
30/04/2026
For the second year in a row, Overtime and the National Women's Soccer League (NWSL) are teaming up through a renewed content partnership to bring fans even...
30/04/2026
The 22-year ESPN vet's responsibilities will reportedly be taken over by SVP Mike Foss...
30/04/2026
In-venue and creative video staffers at the professional and collegiate level ha...
30/04/2026
Amazon and Duke University have announced a multiyear agreement for Prime Video to present exclusive coverage of three Duke Blue Devils men's basketball neu...
30/04/2026
Ratings Roundup is a rundown of recent rating news and is derived from press rel...
30/04/2026
Music is evolving, and so are the ways you discover and connect with artists. In...
30/04/2026
Between April 22-29, the first inaugural Stockholm Music Week brought together thought leaders and partners across industries including music, tech, government,...
30/04/2026
Iconic large-format console upgraded
API's iconic Vision console has just been treated to an overhaul that aims to meet the demands of today's profe...
30/04/2026
Comes complete with miking accessories
The LCT 440 Pure has proven to be a popular member of Lewitt's mic line-up, offering impressive technical perform...
30/04/2026
24 October 2026 at The Octagon, Sheffield
Now in its eighth year, SynthFest UK is the largest event of its kind in the UK, bringing together the top keyboar...
30/04/2026
SBS & NITV LEAD NATIONAL RECONCILIATION WEEK 2026 WITH LANDMARK GULPILIL DOCUMEN...
30/04/2026
Rohde & Schwarz equips new Terminal 3 at Frankfurt Airport with security scanner...
30/04/2026
Rohde & Schwarz expands broadband amplifier portfolio with new power classes up ...