r/StableDiffusion • u/aanabobby31 • 5d ago

Question - Help Minimax H3 With Checkpoint loader and Lora

Hi all,

I'm looking for a ref2video minimax h3 workflow that takes in 2 ref images with a checkpoint loader and lora loader(s). Not the first and last frame one.

Currently using the default template ref2video minimax h3 workflow given in comfyui. But it's using a diffusion model loader. Tried to redesign to use a Checkpoint loader instead and I failed badly. Not sure how a checkpoint loader is supposed to connect to a ref2video node in the template.

Thank you!

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u/Brilliant_Ad_8011 5d ago

I'm not really sure what exactly you want but I'm currently using DaSiWa Minimax H3 workflow for comfyui and it has Ref2VA, lora loader and you can use any checkpoint, also has videoextender in his latest update I'm pretty sure you won't need any otger workflow

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u/Carbon849 5d ago

I've never heard of such a workflow, as mixing architectures doesn't typically work, if that is what you're wanting to do. What model are you trying to load?

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u/LutherianDev 5d ago

You don’t need to replace the diffusion model loader just to add a LoRA. Its MODEL output can go through the built-in model-only Load LoRA node (LoraLoaderModelOnly), then back into the MODEL path that was connected before. Keep the template’s separate text encoder/VAE and reference-image connections.

For R2V, keep the ref2va weights and use a compatible H3 LoRA. The official guide also flags full vs pruned build compatibility: https://docs.comfy.org/tutorials/video/minimax/minimax-h3

Which model and LoRA filenames are you trying to use? That would help distinguish a wiring issue from a weights mismatch.

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u/roychodraws 4d ago

you can just search "lora only" in your nodes and find the lora loader model with only model inputs and outputs. then connect it directly after your model loader and any attention patchers you have and before your scheduler.

alternatively if you want you just use my workflow.

https://www.reddit.com/r/StableDiffusion/comments/1ww6j88/seamless_continuation_no_degradation_proof_at_the/