---
title: CurveModifier
sourcecode: src/core/CurveModifier.tsx
---

[![](https://img.shields.io/badge/-storybook-%23ff69b4)](https://drei.pmnd.rs/?path=/story/modifiers-curvemodifier)

Given a curve will replace the children of this component with a mesh that move along said curve calling the property `moveAlongCurve` on the passed ref. Uses [three's Curve Modifier](https://threejs.org/examples/#webgl_modifier_curve)

```jsx
const curveRef = useRef()

const curve = React.useMemo(() => new THREE.CatmullRomCurve3([...handlePos], true, 'centripetal'), [handlePos])

return (
  <CurveModifier ref={curveRef} curve={curve}>
    <mesh>
      <boxGeometry args={[10, 10]} />
    </mesh>
  </CurveModifier>
)
```