This workflow allow to easily generate video using Minimax H3 and upscale them in high resolutions using chunking and frame interpolation for better quality.

Node colors have meaning:

• Red: one time models configuration

• Yellow: my personal config, feel free to adjust it if does not suit you

• Green: node you will often edit to adjust video generation

• Black: Informations to understand how some nodes works

Getting start

•  Fill the "Prompt, Loras and References" group with your prompt and ressources

•  Adjust "Video duration", "Video settings (1st pass)" nodes in "First pass: Generate video" group

•  Adjust "Upscale Resolution Selector"  node in "Second pass: Upscale" group

•  Then Run !

Custom changes

• Use the "Bypass groups" node to bypass groups you don't need

• By default, the non upscaled video is not saved. You can save it by choosing the "Save" button ("Preview" is selected)

• By default, the workflow use "Temporal chunk" and "RIFE" to save VRAM and up the framerate to 60 FPS on the final video

• For low VRAM, you can use the "Spatial Chunk (Save even more VRAM)" node to split even more the chunking

• After each generation, the VRAM is free with the nodes "Free VRAM" for each pass. Feel free to bypass them if don't need them.