PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment is a cotton jersey blend (matte finish) with faux-suede brown shoulder panels (textured, low specular reflection). The fabric is significantly lighter and thinner than the user's current thick knit hoodie. It should drape with smaller, softer folds compared to the rigid creasing of the current hoodie. - **Key Features:** The central graphic text ("ROADSTER Snow Mountains Alaska") must remain legible and centered, though warped to follow the chest curvature. The brown shoulder patches and the grey contrast piping on the neck and sleeve cuffs must be preserved. The crew neckline shape needs to replace the current hoodie's v-neck/hood structure. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** Due to the User's raised right arm (elbow up), the right sleeve of the t-shirt must retract and bunch towards the shoulder/armpit, exposing the underarm area (unlike the static model pose). The fabric across the chest must stretch diagonally from the left hip to the right shoulder due to the leaning pose. The silhouette must be reduced: the new t-shirt is thinner than the current hoodie, so the "virtual skin" surface must be estimated closer to the body core to avoid a puffy look. - **Occlusion Handling:** The User's left hand is inside the jeans pocket. The t-shirt hemline on the left side must interact with the wrist/forearm—either draping slightly over the wrist or appearing partially bunched above the pocket entry. The User's neck and jawline must layer *over* the new collar. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The User environment has a warm, indoor artificial light source coming from the front-left, casting a hard shadow against the door frame to the right. The black t-shirt must accept this warm tint (shifting from pure #000000 to a warmer dark charcoal in lit areas). Shadows within the fabric folds should be deep and directional to match the room's contrast. - **Color Calibration:** The source image is high-contrast studio lighting (cool/neutral). The t-shirt's black levels and the saturation of the brown patches must be lowered and warmed to match the lower dynamic range and ISO noise of the User's mobile camera photo. PHASE 4: IDENTITY PROTECTION - **Facial Lock:** The user's face, beard, ears, and hair volume are completely frozen. The transition at the neck must be seamless, masking out the hoodie strings and hood bulk without altering the neck thickness. - **Body Integrity:** STRICTLY PROHIBITED to impose the source model's muscular chest definition onto the user. The user's natural shoulder width and torso shape (which is currently leaning and relaxed) must be maintained. Do not straighten the spine or slim the waist.