exportanything/comfyui-ltx-director-motion-brush

LTX Director Motion Brush is a custom add-on (called a node pack) for ComfyUI, a popular open-source tool that lets people build image and video generation workflows visually. This particular node pack focuses on generating short video clips using a model called LTX 2.3, with a special feature called Motion Brush that lets you draw motion paths directly on top of still images to control how parts of the scene should move. The project is a fork of an earlier ComfyUI package called LTX Director v2, originally created by WhatDreamsCost. This version rebuilds the timeline editor and adds Motion Brush controls, which turn drawn tracks into a sparse motion-control video that LTX 2.3 can follow. It also adds features for retake workflows (redoing a segment), motion carry (letting motion continue from one image to the next), and balance controls that prevent the final video from looking too static or overpowered by the motion tracks. Installation is done through ComfyUI-Manager or by cloning the repository into ComfyUI's custom nodes folder. The node pack coexists with the original LTX Director v2 without conflicts because it uses unique node names and upload routes. Several required models must be downloaded separately, including the LTX 2.3 model weights and Lightricks IC-LoRA motion-track files from Hugging Face. The package is described as nightly, meaning it is in an active preview state intended for users comfortable testing new tools and troubleshooting workflow issues. Example workflow files for different VRAM settings are included, with low-VRAM and GGUF options for limited hardware. Japanese annotated copies of the workflows are also provided. This is primarily a tool for people already using ComfyUI who want to add motion brush control to their LTX 2.3 video generation pipelines.