PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment is a heavyweight cotton jersey (approx. 220-240 GSM). It has a matte finish with low reflectivity. The structural integrity is high, meaning it resists clinging to the skin and creates angular, heavy folds rather than fine ripples. It features a "drop-shoulder" oversized silhouette. - **Key Features:** The central graphic (teal/blue mandala pattern with a central trident/Trishul) is the primary visual anchor and must be centered relative to the sternum. The crew neckline features a thick ribbed collar. The sleeves are elongated (oversized fit). Note: The silver chain necklace present in the source image is an accessory, not part of the garment, and should be removed during transfer. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** Due to the user's pose (arms brought inward to hold the phone), the fabric must exhibit compression wrinkles radiating from the armpits toward the center chest. The garment has an oversized cut, so it should hang loosely around the waist rather than tapering in. The shoulders of the virtual garment must extend slightly beyond the user's natural deltoids to simulate the drop-shoulder cut. - **Occlusion Handling:** This is a high-complexity occlusion scenario. The user's hands, fingers, the smartphone (iPhone), the wristwatch (left wrist), and the sacred thread/bracelet (right wrist) are all positioned directly over the chest area. These elements must be segmented with pixel-perfect precision and layered *on top* of the generated graphic. The central trident design will be partially obscured by the phone and fingers; the physics engine must calculate the graphic's continuity behind these objects. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The user image is a mirror selfie with diffuse, overhead indoor lighting. The source image has high-contrast studio lighting. The generated shirt's contrast must be reduced to match the slightly washed-out, softer dynamic range of the mirror reflection. Shadows should cast downwards from the chin and phone onto the chest. - **Color Calibration:** The deep navy/black of the source shirt must be lifted slightly to a dark charcoal/navy tone to match the black levels of the user's current t-shirt. A slight amount of grain/noise must be added to the new garment texture to match the ISO noise level of the user's mobile camera photo. PHASE 4: IDENTITY PROTECTION - **Facial Lock:** The user's entire head region, including the hair texture, beard, eyes, and ear visible on the right side, must be masked and frozen. - **Body Integrity:** Strictly forbid any morphing of the user's shoulder width or waistline. The user's visible forearm muscles and the grey trousers at the bottom must remain unaltered. The goal is to drape the cloth *over* the existing body volume, not to reshape the body to fit the cloth.