LTXVCropGuides - ComfyUI Built-in Node Documentation

The LTXVCropGuides node removes keyframe guidance data from a video generation workflow. It counts the keyframes recorded in the positive conditioning, crops that many frames off the end of the latent samples and noise mask, and clears the keyframe index and guide attention entries from both conditioning inputs. When no keyframes are found, the conditioning inputs are returned unchanged and the latent is passed through with a cloned sample tensor and its noise mask.

Inputs

Parameter	Description	Data Type	Required	Range
`positive`	The positive conditioning input containing guidance information for generation. The number of keyframes it holds determines how many frames are cropped from the latent.	CONDITIONING	Yes	-
`negative`	The negative conditioning input containing guidance information for what to avoid in generation. Its keyframe data is cleared along with the positive conditioning.	CONDITIONING	Yes	-
`latent`	The latent representation containing image samples and noise mask data. When keyframes are present, the final keyframe frames are removed from both the samples and the noise mask.	LATENT	Yes	-

Note: Cropping only occurs when keyframe indices are detected in the positive conditioning. If no keyframes are detected, the positive and negative conditioning are returned unchanged, while the latent is still returned with a cloned sample tensor and an explicit noise mask (a mask of all ones is created if the input latent has none).

Outputs

Output Name	Description	Data Type
`positive`	The processed positive conditioning with keyframe indices and guide attention entries cleared	CONDITIONING
`negative`	The processed negative conditioning with keyframe indices and guide attention entries cleared	CONDITIONING
`latent`	The cropped latent representation with adjusted samples and noise mask, where keyframe sections have been removed	LATENT

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Inputs

Outputs