Expression Library Guide
  • After Effects - Expression Library
  • Expression Library UI Overview
    • Import To Expression Library
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      • Adding An Item To Export
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    • Guide
    • Expression Library
      • Expression Library Item Icon Guide
    • Information
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    • Add Expression Library Item
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    • Apply Expression
      • Applying To Properties
      • Applying To Layers
    • Delete Expression
      • Deleting With Combined Effects
  • Creating An Expression Library Item
    • Expression Library Info
    • Selection
      • Single Property Selection
      • Multiple Property Selection
      • Layer Selection
    • Including Keyframes
    • 3D or 2D Layer
    • Javascript or Extendscript
    • Naming Your Expression
  • Adding Custom Controls
    • thisLayer & Master Layers
    • Custom Functions
      • addMaster()
      • add3DPointControl()
      • add2DPointControl()
      • addColorControl()
      • addCheckboxControl()
      • addSliderControl()
      • addAngleControl()
      • addLayerControl()
    • Combining Custom Controls
    • Example Expressions
      • Standard Expression
      • Expression with thisLayer Controls
      • Expression With Master Controls
  • Tutorials
    • Tutorial Series 01
  • Changelog
    • Updates
  • Expression Pack
    • COMING SOON
  • FAQ
    • Installing The Script
      • Install As A Script Panel
      • Avoiding Those Darn Errors
      • Loading The Script
    • Reporting A Problem
    • After Effects Expression Error
    • Supported Versions
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  • Applying To A Single Property
  • An expression library item that contains a single expression.
  • An expression library item that contains multiple expressions.
  • Applying To Multiple Properties
  • An expression library item that contains a single expression.
  • An expression library item that contains multiple expressions.

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  1. Expression Library UI Overview
  2. Apply Expression

Applying To Properties

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Last updated 5 years ago

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Depending on the type of expression you have selected it will change how it's applied to the property or properties.

Applying To A Single Property

An expression library item that contains a single expression.

This will allow you to apply the selected expression to the selected property regardless of if that expression can be used on that property or not.

An expression library item that contains multiple expressions.

When trying to apply a multiple expression library item to a single property it will check if any of the expressions inside the expression library item match that of the selected property. If any match it will apply them. However, if there is no match it will not apply anything.

Applying To Multiple Properties

An expression library item that contains a single expression.

The selected expression library item will be applied to every single one of the selected properties. Regardless of if that expression can be used on that property or not

An expression library item that contains multiple expressions.

When trying to apply a multiple expression library item to multiple properties it will check if any of the expressions inside the expression library item match that of the selected properties. If any match it will apply them. However, if there is no match it will not apply anything.

Applying a single expression to either a property or properties can result in expression errors as you may apply an expression built for the position property to the scale property and will get an error that the expression is a value of 2 instead of 1.

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