ComfyUI: Generating Guide Videos with BFS Node

Demo summary
The demo shows how to use the BFS Node extension to combine a reference face image and a driving video into a green-screen guide video required for the LTX sampling process.
Step-by-step
- Install the BFS Node extension in ComfyUI
- Connect your reference video to the 'frames' input of the BFS Node
- Connect your face image to the 'face image' input of the BFS Node
- Set the overall resolution to match your desired final output
- Run the workflow to generate the green-screen guide video
Watch out for
- The left side of the generated video is fixed at 255 pixels
- The face image is automatically centered with a 12-pixel margin on both sides
Tips
- Choose a face image where the face is the absolute main focus for better face swap results
- Note that the background for the face image side will be green, while the reference video side will be black
All demos from “How to Face Swap in LTX 2.3 (Full ComfyUI Guide)|I Put LTX 2.3 Face Swap Through 5 Extreme Tests”
2:081:55Configuring LTX 2.3 Face Swap Workflow in ComfyUIThe creator walks through a custom ComfyUI workflow, showing how to load the LTX 2.3 model with the face swap LoRA and set up resolution scaling and frame count calculations.ComfyUI· AI Face Swap Generator
4:031:00Generating Guide Videos with BFS NodeCurrentThe demo shows how to use the BFS Node extension to combine a reference face image and a driving video into a green-screen guide video required for the LTX sampling process.ComfyUI· Video to Video
5:030:47Injecting Latent Constraints with Add Guide MultiThe video demonstrates using the 'Add Guide Multi' node from the KJ Node extension to inject the guide video constraints and VAE-encoded latents into the sampling pipeline.ComfyUI· Video to Video
5:500:56Sampling and Scheduler ConfigurationThe creator shows the sampling process in ComfyUI, specifically demonstrating how to select the correct scheduler and set sampling steps to avoid face distortion.ComfyUI· AI Image Generator
8:090:41Close-up Face Swap TestA demonstration of a close-up face swap where the LTX 2.3 model transfers facial expressions and lip movements from a driving video to a target portrait.ComfyUI· AI Face Swap Generator
9:521:03Testing Face Swap with Scene CutsThe video demonstrates how the LTX 2.3 face swap LoRA handles a reference video with a camera cut and clothing change, showing its ability to maintain character features across transitions.ComfyUI· AI Face Swap Generator
10:550:39Underwater Environmental Interference TestA demonstration of the face swap effect in an extreme underwater environment, showing the model's ability to reveal and swap a face through water surface interference.ComfyUI· AI Face Swap Generator- Watch “How to Face Swap in LTX 2.3 (Full ComfyUI Guide)|I Put LTX 2.3 Face Swap Through 5 Extreme Tests” →
Video to Video
2:280:44Swap human character for 3D Pixar model in MochaThe creator demonstrates swapping a real person in a video with a 3D Pixar-style character using Mocha, showing the transfer of lip movements and hand gestures.AI Search
20:110:27Generating final character swap videoThe video shows the K-Sampler process and the final rendered output of a character replacement task within ComfyUI.AI Search
15:344:59Character replacement with Wan AnimateThe creator demonstrates using Wan Animate and SAM 3 to mask a character in a reference video and replace them with a new character from a static image while maintaining the original motion.pixaroma
21:072:43Cartoon animation with Wan SCAILThe user shows how to animate a cartoon ballerina using a real-person video as a motion reference via the Wan SCAIL workflow in ComfyUI.pixaroma
8:150:26Using Keyframes to guide video generationThe demo shows how to slide an image to a later point in the timeline to use it as a target keyframe, allowing the model to generate the action leading up to that specific visual.What Dreams Cost
15:352:08Final video generation with Wan 2.1The demonstration shows how to use the Wan 2.1 V2V model to combine the generated 3D motion and a reference character image into a final, high-quality AI video animation.Benji’s AI Playground
1:003:01Generate character-consistent video with Wan 2.6 R2VThe creator demonstrates a ComfyUI workflow using the Wan 2.6 API node to transform a 5-second reference video of himself into a new scene while maintaining character consistency and native audio lip-sync.Sebastian Kamph
4:031:00Generating Guide Videos with BFS NodeCurrentThe demo shows how to use the BFS Node extension to combine a reference face image and a driving video into a green-screen guide video required for the LTX sampling process.Veteran AI
5:030:47Injecting Latent Constraints with Add Guide MultiThe video demonstrates using the 'Add Guide Multi' node from the KJ Node extension to inject the guide video constraints and VAE-encoded latents into the sampling pipeline.Veteran AI
1:551:00Adding reference images for character consistencyThe video shows how to use the MSR custom node to input up to four reference images and a background image to maintain character facial consistency across video frames.bigboss97
8:521:04Replacing a dancing character with MochaA concrete demonstration of replacing a woman dancing in a video with a new character using the Mocha workflow in ComfyUI.SOTAI
12:450:58Replacing a human with an animated werewolfThe video demonstrates replacing a human actor with a stylized werewolf character while maintaining consistent textures and movement.SOTAI
ComfyUI