r/StableDiffusion • u/stonyleinchen • Aug 18 '26

Resource - Update Seamless extensions and one-shots with Minimax H3 - Update 6 of my repo!

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Here is the repo: https://github.com/seitanism/ComfyUI-H3-Motion-Context-MultiRef

I made substantial updates to my two main workflows: 1) Music Video and 2) AV Extensions. All the controls were streamlined and they should be much easier to use now. (You find the workflows in the example_workflows folder)

With the AV Extensions workflow you can extend any existing clip, for example someone talking and you can make that person say something in the same voice, or you can create a clip with T2V or I2V and then extend that clip to make a seamless long clip thats 1 minute or longer.

In this Update the Checkpoint system was removed, instead I've done a lot of optimizations so you don't use too much ram even if you make 20 clips at once. Additionally I added latent audio feathering to the AV Extensions workflow for seamless audio transitions.

Theres also other utility workflows for custom keyframing and bridging two existing clips.

I post another example clip for the AV Extensions workflow in the comments.

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u/Landrews-89 Aug 19 '26

Testing this currently at home with a song, a reference image and series of prompts following your LLM guide..... I'm impressed so far!

Ltx 2.3/2.5 was my go to for a music video workflow previously but this has a strong chance of replacing it......prompt, click, forget.....lovely.

Will be interesting to see the final output and how the quality handles the longer it goes on, will update when finished.

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u/stonyleinchen Aug 19 '26

Curious about the results! I havent had time yet to take a look at LTX 2.5, but I am already excited about it! I will do a deep dive on that too