Chapter 79: propEffect

Core Idea

Learn to use Motion's propEffect to dynamically apply motion values to JavaScript object properties. Understand how it facilitates re-rendering on updates, its utility for libraries like Three.js, and how to apply and clean up effects.

Key Concepts

• Cancel: propEffect returns a cleanup function which
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Code Examples

const pos = { x: 0, y: 0, z: 0 }
const x = motionValue(0)

propEffect(pos, { x })

// Set x on pos to 100
x.set(100)

// Animate x on pos to 200
animate(x, 200)

• What it demonstrates: Core usage pattern for propEffect.

Key Takeaways

1. propEffect supports Cancel.
2. propEffect supports Animate faster with Motion+..

Connects To

• motionValue: related Motion doc page.
• frame: related Motion doc page.
• styleEffect: related Motion doc page.
• attrEffect: related Motion doc page.
• svgEffect: related Motion doc page.