Flux3LayoutPrompt - ComfyUI Built-in Node Documentation

Builds the layout table that FLUX 3 Image reads from a prompt. It takes the elements drawn in the Create Bounding Boxes node and appends them to your prompt as a list of boxes, each with an id, its coordinates, and its description. Cite a box in the prompt as <obj_N> to tie words to that region, then connect the output to the prompt input of the FLUX 3 Image node. With no elements connected the prompt is returned unchanged.

Inputs

Parameter	Description	Data Type	Required	Range
`prompt`	The prompt text. Cite box N as `<obj_N>` to tie words to it.	STRING	Yes	-
`element`	The elements to place in the layout, taken from the Create Bounding Boxes node. Color palettes are not used, so describe colors in the description instead.	ARRAY	Yes	-

Outputs

Output Name	Description	Data Type
`prompt`	The prompt with the box layout table appended, ready to feed into the FLUX 3 Image node.	STRING

This documentation was AI-generated. If you find any errors or have suggestions for improvement, please feel free to contribute! Edit on GitHub

Source fingerprint (SHA-256): ac8f61701c8da0a6fc8361aeebf7fc5e7aa338ce6ad8689718904caa9c53e3b8

​Inputs

​Outputs

Inputs

Outputs