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# imageSequenceFrameRate

The rate, in frames per second, of particle image animation. Animatable.

```
var imageSequenceFrameRate: CGFloat { get set }
```

## Discussion

To specify a sequence of frames for animating each particle, arrange the frames as a grid in a single image, as shown in [Figure 1](/documentation/scenekit/scnparticlesystem/1524153-particleimage#1965925). Then use the [`imageSequenceRowCount`](/documentation/SceneKit/SCNParticleSystem/imageSequenceRowCount) and [`imageSequenceColumnCount`](/documentation/SceneKit/SCNParticleSystem/imageSequenceColumnCount) properties to specify the arrangement of frames in the images, and this property to define animation speed.

The default value is `0.0` frames per second, specifying no animation.

You can animate changes to this property’s value. See [Animating SceneKit Content](/documentation/SceneKit/animating-scenekit-content).

---

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