PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment is an acid-wash denim vest. Physics simulation must treat this as a **high-rigidity, high-density material**. Unlike the current cotton hoodie, the vest will not conform tightly to muscles; it will maintain its structural shape. The material has a matte finish, but the white "acid wash" noise texture must scatter light diffusely. - **Key Features:** - **Pockets:** The four cargo-style pockets (2 chest, 2 waist) have button flaps. These require high-depth normal mapping to ensure they look volumetric and not like a flat print. - **Patch:** The "SOUL REBEL" beige patch on the left chest is a rigid anchor point and must not distort significantly during warping. - **Armholes:** Rough/frayed denim edges at the armholes must be preserved. - **Open Front:** The source image shows the vest unfastened. The simulation should render the vest as an open layer, revealing the center torso line. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** - **Right Side (Raised Arm):** Due to the user's right arm being raised behind his head, the right armhole of the vest must lift upward. The rigid denim shoulder yoke will bunch slightly at the neck base but remain stiff. - **Left Side (Hand in Pocket):** The user's left hand is inside his jeans pocket. The vest is long (hip-length). The physics engine must simulate the bottom-left hem of the vest draping *over* the wrist/forearm bulge, or being pushed back slightly by the forearm. It cannot clip through the arm. - **Torso Lean:** The user is leaning against the doorframe to his right. Gravity will pull the open flaps of the vest toward the doorframe (viewer's left), causing the left side of the vest to hang more vertically while the right side presses against the ribs. - **Occlusion Handling:** - **Left Wrist:** The vest hem must interact physically with the left wrist area, creating a "collision" where the fabric bumps out rather than lying flat against the hip. - **Neck/Chin:** The vest has a V-neck; ensure the user's neck is fully cleared. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** - **Source Correction:** The source vest was photographed under warm, yellowish indoor light. This must be neutralized (white-balanced) to match the cooler, daylight-temperature ambient light of the user's room. - **Scene Lighting:** The user's light source comes from the front-left. The vest must cast a shadow onto the user's right side (doorframe side). - **Self-Shadowing:** The pocket flaps on the vest must cast drop shadows onto the vest body to prove depth. - **Color Calibration:** The black denim should appear charcoal/faded black in the room's lighting, not jet black, to preserve the acid-wash texture details. PHASE 4: IDENTITY PROTECTION - **Facial Lock:** Absolute freeze on the user's eyes, nose, mouth, facial hair, and the hairstyle. The jawline and neck connection point must remain seamless. - **Body Integrity:** The user has a medium build. The denim vest adds bulk due to material thickness. Do not apply "slimming" algorithms; the silhouette should become slightly wider/boxier than the current soft hoodie to reflect the heavy denim material. Retain skin tone consistency for the exposed arms (replacing the hoodie sleeves).