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# init(ciFilter:duration:)

Creates a transition that uses a Core Image filter to perform the transition.

```
init(ciFilter filter: CIFilter, duration sec: TimeInterval)
```

## Parameters

`filter`

A Core Image filter.

`sec`

The duration of the transition.

## Return Value

A new transition.

## Discussion

The filter used to perform the transition must a be filter that requires only two image parameters (`inputImage`, `inputTargetImage`) and generates a single image (`outputImage`). The transition automatically sets the filter’s `inputImage`, `inputTargetImage`, and `inputTime` properties. You must set up any other filter properties before creating the transition.

---

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