CreateHookKeyframesFromFloats - ComfyUI Built-in Node Documentation

This node creates hook keyframes from a list of floating-point strength values, distributing them evenly between specified start and end percentages. It generates a sequence of keyframes where each strength value is assigned to a specific percentage position in the animation timeline. The node can either create a new keyframe group or add to an existing one, with an option to print the generated keyframes for debugging purposes.

Inputs

Parameter	Description	Data Type	Required	Range
`floats_strength`	A single float value or list of float values representing strength values for the keyframes (default: -1)	FLOATS	Yes	-1 to ∞
`start_percent`	The starting percentage position for the first keyframe in the timeline (default: 0.0)	FLOAT	Yes	0.0 to 1.0
`end_percent`	The ending percentage position for the last keyframe in the timeline (default: 1.0)	FLOAT	Yes	0.0 to 1.0
`print_keyframes`	When enabled, prints the generated keyframe information to the console (default: False)	BOOLEAN	Yes	True/False
`prev_hook_kf`	An existing hook keyframe group to add the new keyframes to, or creates a new group if not provided	HOOK_KEYFRAMES	No	-

Note: The floats_strength parameter accepts either a single float value or an iterable list of floats. The keyframes are distributed linearly between start_percent and end_percent based on the number of strength values provided. The first keyframe is guaranteed to have at least one step to ensure it is applied.

Outputs

Output Name	Description	Data Type
`HOOK_KF`	A hook keyframe group containing the newly created keyframes, either as a new group or appended to the input keyframe group	HOOK_KEYFRAMES

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Inputs

Outputs