PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment is a textured fleece or sherpa material. It features high light absorption and low specularity (matte finish). The simulation must account for significant fabric thickness and volume; it should not lay flat like cotton but rather hold a semi-rigid, puffy shape due to the pile depth. - **Key Features:** - **Embroidery:** The text "MCHNIST 1978 ANSWER WITH THROTTLE" must retain its stitched, 3D embossed appearance. - **Structure:** The hood structure (collapsing around the neck), the front kangaroo pocket, and the elasticated ribbed cuffs and bottom hem are critical. - **Texture:** The fuzzy, uneven surface texture of the fleece must be preserved to distinguish it from smooth synthetic fabrics. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** - **Pose Retargeting:** The source image shows the model with hands in pockets, creating tension and bunching at the hem. The target user has arms at their sides. The simulation must "relax" the hoodie, removing the upward pull of the pockets and allowing the fabric to hang vertically with natural gravity. - **Shoulder Drop:** The hoodie has a dropped-shoulder design. This must align with the target user's natural shoulder line, adding bulk/width consistent with the garment's oversized cut. - **Hem Interaction:** The elastic hem should sit naturally around the user's upper hips, creating a slight "blousing" effect above the waistband, rather than hanging perfectly straight. - **Occlusion Handling:** - **Hair:** The user's curly hair at the nape of the neck must overlap the back of the hood. - **Hands:** The user's hands are currently positioned low at the sides; ensure the bulky sleeves of the hoodie do not clip through the thumb/wrist area. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The target environment utilizes soft, diffused studio lighting, predominantly from the front-left, casting soft shadows to the user's right. The hoodie's fleece texture needs ambient occlusion shading to define the "fuzziness" and depth of the embroidery under this specific light direction. - **Color Calibration:** The source blue is vibrant/cool. It must be color-graded to match the slightly desaturated, neutral white balance of the target image. The shadows on the hoodie must match the black density of the user's shoes and hair to ground it in the scene. PHASE 4: IDENTITY PROTECTION - **Facial Lock:** The user's entire head, including the specific volume of curly hair, facial structure, skin tone, and neck (up to the clavicle notch), must remain pixel-frozen. - **Body Integrity:** The user's leg stance and trouser fit must not be altered. The generated hoodie must conform to the user's existing shoulder width and arm length without slimming or artificially bulking the underlying skeletal structure.