Batch Upscaling Old Game Textures with ComfyUI and ControlNet

MuffDivers2_ · reddit · 2026-07-30

A user is seeking advice on using local AI tools to modernize over 3,000 PNG textures from a classic game (P.N.03) into high-resolution versions while strictly preserving original filenames and detail alignment. To avoid the high costs of online platforms, they plan to use ComfyUI on a local machine equipped with an RTX 5090.

An AI assistant previously suggested a workflow: using batch loading nodes in ComfyUI, applying ControlNet (Canny/Depth) to lock structural details, utilizing Img2Img with a denoising strength of 0.3-0.5 for modern polish, and using custom nodes to save outputs with original filenames. The user is now asking the community to validate this approach and find the best possible setup.

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