ComfyUI Node
MultiDiffusion Tiled Hires Fix
Model-agnostic MultiDiffusion tiled hires-fix / refiner. Runs one sampling pass over the whole image, splitting the latent into overlapping tiles every denoising step and averaging the overlaps in latent space, so there are no tile seams and per-step VRAM stays tile-sized. Upscale the image first, then refine it here with a low denoise. Works on any model (SD/SDXL/Flux/etc.) - no extra node packs.
MultiDiffusion Tiled Hires Fix
- image
- model
- positive
- negative
- vae
- image
◄seed0►
◄steps20►
◄cfg7.0►
◄sampler_name▾►
◄scheduler▾►
◄denoise0.50►
◄rows2►
◄columns2►
◄overlap0.00►
◄overlap_x64►
◄overlap_y64►
◄vae_decode_tiledfalse►
◄vae_decode_tile_size512►
CategoryvsLinx/sampling
Inputs (18)
| Name | Type | Default | Description |
|---|---|---|---|
| image | IMAGE | — | |
| model | MODEL | — | |
| positive | CONDITIONING | — | |
| negative | CONDITIONING | — | |
| vae | VAE | — | |
| seed | INT | 00–18446744073709550000 | — |
| steps | INT | 201–10000 | — |
| cfg | FLOAT | 7.00–100 | — |
| sampler_name | COMBO | 44 options: euler, euler_cfg_pp, euler_ancestral, euler_ancestral_cfg_pp, heun, heunpp2, +38 | |
| scheduler | COMBO | 9 options: simple, sgm_uniform, karras, exponential, ddim_uniform, beta, +3 | |
| denoise | FLOAT | 0.500–1 | Denoise strength. For a tiled hires-fix on an already-upscaled image keep this low (e.g. 0.3-0.5). |
| rows | INT | 21–256 | — |
| columns | INT | 21–256 | — |
| overlap | FLOAT | 0.000–0.5 | Overlap between tiles as a fraction of tile size, added on top of overlap_x/overlap_y. |
| overlap_x | INT | 640–8192 | Extra horizontal overlap in pixels. |
| overlap_y | INT | 640–8192 | Extra vertical overlap in pixels. |
| vae_decode_tiled | BOOLEAN | false | Decode the final full-image latent in tiles instead of one pass, to avoid a single huge VAE decode that can spike VRAM (or, on Windows, spill into slow shared system memory). The decode is a single full-image pass independent of rows/columns, so adding tiles won't shrink it - enable this instead. |
| vae_decode_tile_size | INT | 51264–4096 | Tile size in pixels for the tiled VAE decode. |
Outputs (1)
| Name | Type | Description |
|---|---|---|
| image | IMAGE | — |