Expression and Scripting Improvements in After Effects (October 2017).pdf

[Tim Kurkoski]

This article documents the new expression and scripting functionality included in in the October 2017 release of After Effects (version 15.0).

Summary of contents:

• Expression access to data in JSON files
  • Using JSON files (.json)
  • About the motion graphics JSON schema (.mgJSON)
  • Expression reference
    • Footage sourceText attribute
    • Footage sourceData attribute
    • Footage dataValue() method
    • Footage dataKeyCount() method
    • Footage dataKeyTimes() method
    • Footage dataKeyValues() method
  • Building a custom expression function library in a JSON file
• Expression access to path points on masks, Bezier shapes, and brush strokes
  • Expression reference
    • Path points() method
    • Path inTangents() method
    • Path outTangents() method
    • Path isClosed() method
    • Path pointOnPath() method
    • Path tangentOnPath() method
    • Path normalOnPath() method
    • Path createPath() method
  • Examples
• Create Nulls From Paths scriptUI panel
• Motion Graphics templates scripting access
  • Property canAddToMotionGraphicsTemplate() method
  • Property addToMotionGraphicsTemplate() method
  • CompItem motionGraphicsTemplateName attribute
  • CompItem exportAsMotionGraphicsTemplate() method
  • CompItem openInEssentialGraphics() method
• Scripting bug fixes

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