Character LoRA trained on shadowless backgrounds learns to "float" 0.5-3 inches off the ground

TraditionalCity2444 · reddit · 2026-09-30

A Reddit user recounts a character LoRA training pitfall: after learning that isolated character images don't work (use a small set with varied backgrounds) and dropping Photoshopped shadows to avoid confusing the model, the resulting Z-Image Turbo LoRA (AI-Toolkit + ComfyUI Realtime LoRA Trainer, Joy Caption .txt captions) works well — but the model concluded the character "can float and is often seen 0.5-3 inches off the ground," likely because every training image had a floating, ungrounded figure. They're asking for a prompt-level fix short of retraining.

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