Foton's Workflow with ControlNet upscale — v1.2

Foton's Workflow with ControlNet upscale is for generating SDXL, Pony, or Illustrious images with ControlNet tile upscaling instead of Ultimate SD; it takes generation, HiRes, and face-detail settings and can save images compatible with Civitai when Save Images With Metadata ‌‌‍‍

Generation settings are combined in one subgraph, with upscale controls in the HiRes subgraph and face-detail options in the face-detail step.

Controls include the initial upscale model, ControlNet tile checkpoint, tile batch size, blend factor, upscale size, and denoise.

Face detailing can use custom positive and negative prompts, with additional nodes available for different LoRAs during that step.

Install Save Images With Metadata Universal Extension manually, then run Rules Scanner Subgraph after installation or after changing nodes in ComfyUI so the metadata saver works properly.

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Place the ControlNet models in ComfyUI/models/controlnet.

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The listed node packs are comfyui-impact-pack, ComfyUI-TiledDiffusion, comfyui-impact-subpack, and skimmed_cfg.

Before use, check for these exact files: GOBOLightingILL.safetensors, glinty_v1.safetensors, TTPLANET_Controlnet_Tile_realistic_v2_fp16.safetensors, remacri_original.safetensors, and bbox/face_yolov8m.pt.

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Check your ComfyUI installation for node packs named exactly ComfyMath and SaveImageWithMetaDataUniversal.

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To disable CFG Skimming, turn off enable_skimming and set CFG to the checkpoint's recommended values.

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For 3–4× upscaling, use denoise 0.2 or lower; for lower VRAM use, set tile_batch_size and Tiled Diffusion batch size to 1 and VAE Decode tile size to 512.

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For face detailing, set Use custom prompt to true to enter positive and negative prompts; increase feather if visible edges appear around faces.

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No license is listed for this workflow, so verify the applicable usage terms before using it.

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Changing overlap in the 512×512 low-VRAM setup has not been tested.