A simple workflow to upscale latent Minimax H3 video to 2k using Nvidia-Open-H3-Regenerate-2K

• LoRAs can be downloaded here: https://huggingface.co/Rkss/Open-H3-Regenerate-2K-lora/tree/main

They don't make much difference; use what you like.

• https://nvlabs.github.io/Sana/Open-H3-Regenerate-2K/ Sigma steps provided by NVIDIA. They start at 0.909, which adds a lot of detail, but will also change the scene. You can experiment with a low first sigma, like 0.7 or lower.

• Stacking another turbo LoRA like Taomate 3 steps @0.5-0.7 strength also helps a bit.
  

• In this workflow, I encode the source video to demonstrate; it is not required. You can generate a video at low resolutions, then chain & upscale the latent directly