Uploaded February 2026 | Updated September 2026, 3 weeks ago

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#aftereffects #typography #motiondesign
Transform any character, letter, or custom shape into a dynamic motion graphics piece! In this tutorial, we dive into a procedural workflow in After Effects using the "Create Nulls from Paths" script. This method allows you to create complex, looping line animations that follow your designs perfectly without the headache of manual keyframing.

[Expression Code]
Copy and paste this expression into your Path property to enable the loop:
valueAtTime(time % key(numKeys).time)

Tutorial Breakdown:
• 0:00 – Intro
• 0:30 – Setup Composition
• 0:46 – Setup & Guide Layer
• 1:07 – Designing the Animated Line
• 2:20 – Expression Power: Automating the Loop
• 2:43 – Connecting Boxes to Paths (Null Objects)
• 3:23 – The Secret Script: Create Nulls from Paths
• 4:45 – Global Rotation Controller Setup
• 6:05 – Creating Randomness with Sequence Layers
• 6:44 – Final Preview & Wrap Up

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Thanks for watching the tutorial. For more motion graphics content and After Effects workflows, make sure to like and subscribe. Keep creating!