A keyframe is a starting or ending point in a video animation encapsulating a specific display state (such as camera position, object visibility, color and rendering mode). Transitions are interpolated between keyframes for creating a video animation.

In Aivia, keyframes are used in the Video Animator tool for creating videos for visualizing a 3D/3D+time dataset. Each keyframe is shown as a screenshot / thumbnail on the video timeline with additional tools for modifying the keyframe.

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States saved in a keyframe

Each keyframe in the Video animator encapsulates a number of display settings that the tool uses for interpolating transitions. The following table summarizes all the states that are saved with each keyframe:

Scope	States saved
Global	Camera position Zoom level Orientation Time point (for 3D+time datasets)
Per image channel	Channel visibility Rendering mode Channel color Channel dynamic range (LUT)
Per object set	Set visibility Rendering mode, including dendrite display types
Per clipping plane or ortho plane	Plane visibility Plane position Plane orientation Plane control tool visibility

Keyframe thumbnail

States saved in a keyframe

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