comfyui-lostless-nodes

Lostless Nodes

Lostless custom nodes for ComfyUI focused on random image selection, sequence buffering, mask editing, and image-to-mask conversion.

Included Nodes

• Lostless Random Image Picks an image from a folder and outputs IMAGE plus the selected filename. Supports direct image picking, preview restore on reopen, and a per-node Broadcast Lock toggle for shared randomize pulses.
• Lostless Randomize Button Broadcast trigger for connected Lostless Random Image nodes so one button can randomize every unlocked Lostless random-image node in the graph.
• Lostless Buffer Pads image sequences by duplicating the last frame to satisfy LTX (8n+1) or WAN (4n+1) batch requirements.
• Lostless Mask Editor Interactive mask editor for batched image and mask sequences with reusable in-memory sessions, clear-memory control, and frame-to-frame carry while painting.
• Lostless Image To Mask Converts black-and-white or RGB images into MASK plus a preview IMAGE, with grayscale-preserving and thresholded conversion modes.

Installation

Manual install

1. Clone this repository into ComfyUI/custom_nodes/comfyui-lostless-nodes.
2. Install the node-pack dependencies using the same Python environment that runs ComfyUI.
3. Restart ComfyUI.

python -m pip install -r ComfyUI/custom_nodes/comfyui-lostless-nodes/requirements.txt

ComfyUI-Manager / Registry

Once this pack is published to the Comfy Registry, install it through ComfyUI-Manager by searching for Lostless Nodes.

Notes

• The repo contains an embedded Lostless-Mask-Editor package for compatibility, but this node pack intentionally exposes only the focused Lostless surface documented above.
• If you modify deferred-carry behavior in Lostless-Mask-Editor/nodes/mask_editor.py, run docs/MASK_EDITOR_DEFERRED_CARRY_SMOKE.md before shipping changes.

License

This repository is licensed under Apache License 2.0. Embedded upstream-derived files retain their own notices where applicable.