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ComfyUI: Injecting Latent Constraints with Add Guide Multi

ComfyUITry it →Watch full video →Veteran AI ·

Demo summary

The 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.

Step-by-step

  1. Design prompts to generate the original positive and negative conditions
  2. Use the LTXV conditioning node to inject conditions into the latent space
  3. Add the Add Guide Multi node from the KJ Node extension
  4. Connect the positive conditions, negative conditions, and VAE to the node
  5. Input the guide video and the VAE-encoded latent into the Add Guide Multi node
  6. Generate the new positive conditions, negative conditions, and new latent

Watch out for

  • Requires Kijai's KJ Node extension installed
  • Must pass both the guide video and the VAE-encoded latent to the Add Guide Multi node

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”

  1. 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.ComfyUIAI Face Swap Generator
  2. 4:031:00Generating Guide Videos with BFS NodeThe 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.ComfyUIVideo to Video
  3. 5:030:47Injecting Latent Constraints with Add Guide MultiCurrentThe 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.ComfyUIVideo to Video
  4. 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.ComfyUIAI Image Generator
  5. 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.ComfyUIAI Face Swap Generator
  6. 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.ComfyUIAI Face Swap Generator
  7. 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.ComfyUIAI Face Swap Generator
  8. 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

  1. 0:000:54Mocha character replacement showcaseThe video demonstrates Mocha's ability to replace characters in existing videos with new characters from reference images while maintaining original movements and lighting.AI Search
  2. 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
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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
  9. 4:031:00Generating Guide Videos with BFS NodeThe 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
  10. 5:030:47Injecting Latent Constraints with Add Guide MultiCurrentThe 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
  11. 15:031:04Apply camera movement from reference videoThe creator demonstrates copying camera motion and pose dynamics from a reference video (like a dance clip) and applying it to a still character image.Yaroflasher
  12. 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
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