SDXL inpainting fabricates architecture at high mask coverage—developer seeks a better removal workflow

Will_Norcal · reddit · 2026-09-09

A developer using SDXL inpainting to strip furniture from real-estate interiors hit a dilemma: at 30% mask coverage interpolation works (hardwood joints align), but above 75% the model hallucinates—tile floors return as timber, wall colors shift, and a curtained opening becomes a wrong-shaped window. Per-object passes at ≤15% preserve floors but hallucinate furniture in busy 20+ object rooms.

He asks five concrete questions, including whether LaMa (0.87 SSIM vs SDXL's 0.56 on removal) is the consensus tool for structural fill, whether spatially-varying denoising strength helps, and whether residual shadows cue object hallucination.

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