Nodes/Difforum/Difforum · H3 Refine Guides
ComfyUI Node

Difforum · H3 Refine Guides

Make H3 guides fit a two-stage refine. MiniMax H3 guides (first / last frame, Add Guide, Difforum H3 Guides) are encoded at the size of the first render and shared with the target's spatial grid, so the refine pass after a latent upscale fails with a *shape mismatch* if it reuses the same conditioning. This node re-encodes every guide at the upscaled latent's size: from the original full-size pixels when Difforum H3 Guides added it, otherwise by decoding the small guide, resizing it and encoding it again. `drop guides` removes the video guides instead and lets the refine follow the upscaled render alone. References (ref2va pictures) keep their own size and are left untouched.

By chillithebillis·Created 4 months ago·Updated a day ago· 9
Difforum · H3 Refine Guides
  • positive
  • latent
  • vae
  • positive
  • info
◄modere-encode►
CategoryDifforum/5 · Video model bridges

Inputs (4)

NameTypeDefaultDescription
positiveCONDITIONINGThe same conditioning the first H3 pass used (with its guides / first-last frames).
latentLATENTThe upscaled AV latent (after the H3 Latent Upscaler), so the guides match its size.
vaeVAEMiniMax H3 video VAE.
modeCOMBOre-encodere-encode: guides rebuilt at the refine size (from the original pixels when Difforum H3 Guides added them). drop guides: the refine follows the upscaled render alone.

Outputs (2)

NameTypeDescription
positiveCONDITIONING—
infoSTRING—