PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment appears to be a velvet or velour material with a distinct pile. It requires anisotropic lighting simulation to capture the "sheen" on the high points of the folds. It is a medium-weight fabric that will hold its shape better than cotton but softer than denim. The internal lining is a yellow/white vertical stripe cotton blend, which contrasts with the heavy exterior. - **Key Features:** The irregular tiger-stripe pattern must maintain continuity across seams. The mandarin/stand-up collar structure needs to be preserved around the neck. The contrast between the exterior velvet and the striped interior lining (visible at the lapel/opening) is a critical detail for realism. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** The garment is a long-sleeved jacket/cardigan replacing a sleeveless vest. It will add volume to the shoulders and arms. The drape should hang somewhat loosely from the shoulders, following the line of gravity rather than hugging the torso tightly. The collar should sit slightly raised off the neck trap muscles. - **Occlusion Handling:** **CRITICAL:** The user's hands are clasped at the waistline. The new garment is long enough to interact with this area. The simulation must render the jacket falling *behind* the clasped hands (assuming an open front style) or bunching slightly above them. The hands and forearms must be segmented and layered *strictly over* the new texture. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The target environment features strong, warm, top-down artificial lighting (visible chandeliers) creating a slight bloom effect. The new garment must generate highlights on the shoulder ridges and upper chest. Shadows should cast downward and slightly inward toward the body core. - **Color Calibration:** The source image was taken in cool/neutral studio lighting (blue background), while the target is in a warm, yellow-toned room. The "Ochre/Yellow" of the jacket must be warmed up slightly to harmonize with the ambient light temperature, ensuring the velvet sheen reflects the warm bulbs above. PHASE 4: IDENTITY PROTECTION - **Facial Lock:** The user's face, jawline, ears, and pulled-back hairstyle (including the hairline) must be completely frozen and untouched. - **Body Integrity:** The user's shoulder width and stance must not be altered. The simulation must simply add the fabric thickness on top of existing volumes. The jeans (lower body) must remain exactly unchanged in fit and texture; do not slim the waist or legs.