Craft Alpha-Ready Video Clips Instantly With img2imgVideoTransparency

img2imgVideoTransparency is a new ComfyUI workflow that creates short video clips with transparent backgrounds from just two images. It uses Wan 2.2 image-to-video models, LightX2V LoRAs for fast generation, and AI background removal. The output is a WEBM file with a real alpha channel, ready for compositing or editing projects.

Developer Therealkove-wq built the workflow after struggling to find an existing tool that could combine image-to-video generation with transparent output. He collaborated with AI assistant Claude to stitch together frame interpolation, background removal, and alpha-channel encoding. The result is a single-click export solution for animators and creators who need clean, compositable video assets.

Key features and workflow

This tool fits motion designers, video editors, and game developers who need short looping animations with transparent backgrounds. Instead of manual rotoscoping or green-screen setups, users can generate clean alpha-matted clips directly from two style frames. Small studios and individual creators can quickly produce sprite animations, UI overlays, or social media assets without leaving ComfyUI.

Developer notes and hardware requirements

The workflow demands at least 16GB of VRAM to run the 14B parameter Wan diffusion models, though lowering resolution or frame count can help on weaker hardware. For best background removal, you must include the phrase “The character is isolated against a transparent background” in your prompt; the developer also suggests experimenting with different rembg models for anime or illustrated styles. One known quirk is that the output file overwrites previous versions without warning, so renaming each export is a necessary step.

“I needed the this for a project but couldn't find any workflows that did both I2I and transparency, so I asked my buddy Claude for help and this is the result.” — Source: Reddit