壁紙シミュレーション AI - 部屋の壁紙を試着プロンプト

Edit only the wall surfaces in the uploaded room photo to apply a new wallpaper pattern. The desired pattern is: [DESCRIBE PATTERN HERE — e.g., "soft cream beige with subtle vertical stripes" or "Scandinavian botanical print in pale sage green"]. Keep the existing furniture, flooring, lighting fixtures, decorations, ceiling, doors, and windows exactly as in the source — only the wall planes change. Preserve the room's perspective, shadow direction, and the way light wraps onto the walls so the new pattern looks like it was physically painted/applied in the same lighting condition. Match the wallpaper scale to the room (typical residential pattern repeat). Output at the original resolution, photorealistic with subtle paper or vinyl texture as appropriate. Do not regenerate the room from scratch — only operate on the existing wall pixels and preserve every non-wall element (furniture, floor, ceiling, fixtures) exactly.