PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment is a cotton jersey knit (tank top). It possesses a low-albedo, matte finish with high flexibility and low structural rigidity. Unlike the user's current stiff oxford shirt, the target simulation must exhibit soft-body dynamics, absorbing light rather than reflecting it. The texture should show microscopic piling typical of washed cotton. - **Key Features:** The central graphic ("THE MISRAGLEN", the mountain emblem, and "NALIEE") is the anchor point; it must maintain topological consistency relative to the chest curvature. The wide, ribbed crew neckline and the cut-off sleeveless armholes are critical structural edges that define the silhouette. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** 1. **Sleeve Transition (Critical):** The user is currently wearing long sleeves, while the target is sleeveless. The simulation requires generative inpainting to reconstruct the user's upper arms and shoulders with accurate skin texture and anatomical volume matching the user's face and wrists. 2. **Torso Drape:** The user has a standard build. The tank top should fit with a "relaxed" drape, falling vertically from the latissimus dorsi rather than tapering at the waist. 3. **Tension Points:** Since the user's hands are in his pockets, the fabric must pull slightly taut across the iliac crest (hip bone) area and gather naturally just above the wrists/pocket entry points. - **Occlusion Handling:** The user's wrists enter the trouser pockets. The hem of the new tank top must interact with this occlusion—either draping over the belt line (obscuring the belt) or appearing partially tucked depending on the desired styling. The user's chin and jawline must layer *over* the new neckline. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The user is standing in a room with warm, diffuse overhead lighting (likely ceiling LED or bulb), creating soft shadows under the nose and chin. The new white garment must not be rendered in pure white (#FFFFFF); it requires a warm temperature shift (yellow/orange tint) to match the ambient room tone and interact with the brown reflections from the wooden wardrobe. - **Color Calibration:** The source image has cool, industrial fluorescent lighting. The target garment's luminance must be lowered, and the white point shifted to align with the histogram of the user's environment to prevent a "floating sticker" effect. PHASE 4: IDENTITY PROTECTION - **Facial Lock:** Absolute pixel preservation required for the user’s face (eyebrows to chin) and hair. The neck region below the jawline (currently covered by the collar) must be reconstructed/exposed but must match the facial skin tone exactly. - **Body Integrity:** Strict prohibition on warping the user's torso width to match the source model's athletic build. The user's shoulder width and waist circumference must remain constant; only the clothing texture and cut are to be swapped.