PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment is a medium-weight cotton jersey with a matte finish. It exhibits low specularity (no shine) and moderate stiffness, typical of streetwear tees. The material structure suggests it will hold a "boxy" shape rather than clinging tightly to the skin. The print is a heavy plastisol or direct-to-garment application, which adds localized stiffness across the chest area, preventing fine micro-wrinkles in the graphic zone. - **Key Features:** - **Oversized Silhouette:** The source is a drop-shoulder, wide-sleeve cut (streetwear fit) compared to the user's current regular fit. This volume must be preserved. - **Graphic Integrity:** The large, high-contrast cartoon face and graffiti background must remain undistorted in the center chest area. - **Collar:** A thick, ribbed crew neck in pink. - **Hem/Sleeves:** Wide sleeve openings with double-stitched hems. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** - **Shoulder Transition:** The user's current shirt has a standard shoulder seam. The new simulation must push the shoulder seam outwards and down the bicep to mimic the "drop-shoulder" cut of the source garment. - **Torso Drape:** Unlike the current fitted purple tee, the new pink tee should hang vertically from the pectorals, creating a slight air gap between the fabric and the midsection. Tension lines should radiate diagonally from the armpits but remain softer due to the loose fit. - **Sleeve Volume:** The sleeves should flare slightly outward and not hug the biceps. - **Occlusion Handling:** - **Beard/Jawline:** The user's beard slightly grazes the collar area. The beard hair must be segmented and layered *over* the new pink collar to maintain depth realism. - **Arms:** The garment must pass behind the user's forearms where they exit the frame or press against the body. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The user's environment has a soft, diffused indoor light source coming from the upper-left (viewer's perspective), casting soft shadows on the right side of the torso and under the arms. The new garment must generate self-shadowing in the folds (ambient occlusion) that matches this directionality. - **Color Calibration:** - The source garment is a cool-toned dusty pink. The user's room has a warm/reddish ambient cast from the pink walls. The new shirt's pink hue must be slightly warmed to reflect the environmental bounce light, ensuring it doesn't look like a "sticker" placed on top. - **Contrast Check:** Since the wall is pink and the shirt is pink, shadow density at the shirt's edges must be emphasized to clearly separate the garment from the background. PHASE 4: IDENTITY PROTECTION - **Facial Lock:** Absolute pixel freeze required for the user's face, beard, ears, and neck skin up to the collar line. The transition from the new collar to the neck skin must be seamless. - **Body Integrity:** Strict prohibition on body warping or slimming. The user's shoulder width and arm thickness must remain constant. The apparent bulk of the user will naturally increase slightly due to the switch from a fitted tee to an oversized tee; this volumetric increase is physically correct and must be allowed.