PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment is a fitted, wrap-style halter top, likely made of a lightweight cotton or rayon blend. It has a matte finish with low specularity. The simulation must treat this as a semi-rigid structure around the bodice (due to the wrap tension) rather than a flowy drape. - **Key Features:** The specific floral pattern (red/pink flowers on dark green) must remain distinct and not blur during warping. The V-neck wrap construction and the strap details leading up to the neck are critical structural elements. The cropped hemline is essential, as it sits significantly higher than the user's current garment. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** The target garment is sleeveless and cropped, whereas the user is currently wearing a long-sleeved, loose blouse. The system must perform significant generative inpainting to reconstruct the user's bare arms and midriff (skin texture generation) where the current lime-green sleeves and hem exist. The new top must contour tightly to the ribcage and bust, ending just above the navel, contrasting with the current loose fit. - **Occlusion Handling:** 1. **Hair:** The user's long dark hair draped over the right shoulder and chest is a "hard occlusion." The floral top must be rendered *behind* these hair strands, with appropriate shadow casting from the hair onto the fabric. 2. **Hands:** The user's hands are clasped at the waist. Since the source garment is a crop top, the hemline will likely terminate *above* the hands, meaning the hands generally won't obscure the fabric, but the skin generation for the stomach area must seamlessly blend behind the clasped hands. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The user is in a room with warm, diffuse overhead lighting (likely a ceiling fixture). The source garment (photographed in cool, bright studio light) must be color-graded to match this warmer ambient temperature. Shadows must be cast downward—specifically, the chin should cast a shadow on the new neckline, and the new garment should cast a slight shadow onto the generated skin of the midriff. - **Color Calibration:** The deep green and red of the source floral pattern must be slightly desaturated and shifted toward yellow/warmth to integrate with the room's beige walls and pink curtains, preventing the "sticker effect" of a studio-lit object in a home environment. PHASE 4: IDENTITY PROTECTION - **Facial Lock:** The user's entire head, including hair, eyes, nose, and mouth, must be masked and frozen. - **Body Integrity:** The user's shoulder width and waist circumference must be preserved. The generative reconstruction of the arms (replacing the sleeves) must match the skin tone of the user's face and neck exactly, without "slimming" the arms or altering the user's natural bone structure.