A ComfyUI custom node for creating fixed-frame MP4 reference videos from multiple subject images and a background image, designed for LTX 2.3 MSR (Multiple-Subject-Reference) LoRA workflows.

• Display name: Licon MSR
• Category: Licon/MSR

• 1: required image
• 2: optional image
• 3: optional image
• 4: optional image
• background: required image
• width: output video width
• height: output video height
• frame_count: 17, 25, 33, or 41

Images are processed in this fixed order:

1 -> 2 -> 3 -> 4 -> background

Disconnected 1 to 4 inputs are skipped. background is always required and always placed last.

Each input image is resized to the configured width and height before the video frames are created. The selected frame count is distributed across the connected images in order. The output is an MP4 file encoded at 24 fps.

Clone this repository into the ComfyUI custom_nodes directory:

cd ComfyUI/custom_nodes
git clone https://github.com/liconstudio/ComfyUI-Licon-MSR

Install requirements if needed:

pip install -r ComfyUI-Licon-MSR/requirements.txt

Restart ComfyUI after installation.