Keyframes let you animate how something changes over time in the editor.
A keyframe saves a property value at a specific point in time. When you add multiple keyframes, Async creates the motion or transition between them automatically.
You can use keyframes on:
Video and image: position, scale, rotation, opacity, corners
Audio: volume
How to add keyframes
Select a clip on the timeline.
In the panel on the right, find the property you want to animate.
Move the playhead to the point where you want the animation to start.
Click the diamond icon next to that property.
This adds your first keyframe.
After that, if you move to a different point in time and change that property, a new keyframe will be created automatically.
How to edit keyframes
Once a clip is selected, keyframes appear as diamond markers on the clip.
You can:
Select a keyframe by clicking it
Move it by dragging left or right
Delete it with Delete/Backspace
Copy and paste selected keyframes
You can also adjust elements directly in the preview, and the keyframes will update there too.
Important to know
If a property has no keyframes, it stays the same across the whole clip.
Once keyframes are added, Async animates between them automatically.
The space between keyframes affects speed:
closer together = faster change
farther apart = slower change