---
title: "init(keyTime:block:)"
framework: scenekit
role: symbol
role_heading: Initializer
path: "scenekit/scnanimationevent/init(keytime:block:)"
---

# init(keyTime:block:)

Creates an animation event.

## Declaration

```swift
convenience init(keyTime time: CGFloat, block eventBlock: @escaping SCNAnimationEventBlock)
```

## Parameters

- `time`: A number between 0.0 and 1.0 specifying the relative time for triggering the event.
- `eventBlock`: A block to call at the specified time.

## Return Value

Return Value An animation event object.

## Discussion

Discussion The time parameter is relative to the duration of the animation the event is attached to. For example, an event with a time of 0.5 triggers when the animation is halfway complete, and an event with a time of 1.0 triggers when the animation ends.