PHASE 1: VISUAL DECONSTRUCTION - **Fabric Physics:** The source garment is a ribbed knit jersey material (cotton-elastane blend). It possesses high elasticity and negative ease, meaning it relies on tension to stay up. It creates a matte finish with soft, diffuse highlights that accentuate the vertical ribbing texture. It should not shine like satin or leather. - **Key Features:** - Centered white typography ("One Chance / For Left") must be preserved without warping into illegibility. - Vertical ribbing texture must be visible. - Strapless neckline (straight cut) and cropped hemline (ending at the mid-waist). - Deep maroon/burgundy color profile. PHASE 2: FIT & DRAPE SIMULATION - **Body Mapping:** - **Topology Change:** The user is currently wearing a sleeved, collared shirt. The simulation must perform significant generative inpainting to reveal the user's bare shoulders, collarbone, and upper arms, which are currently covered. - **Torso Compression:** As the user is seated, the tube top must conform tightly to the torso. Slight horizontal compression folds should appear near the midriff/stomach area where the body bends. - **Hemline Interaction:** The top is cropped; it will likely hover just above the waistband of the user's track pants. The simulation must account for the gap between the garment hem and the seated lap/thigh area. - **Occlusion Handling:** - The user's hands are resting low on the lap and will likely fall *below* the hemline of the cropped top, minimizing overlap. However, if the hem reaches the wrists, the hands must remain the top-most layer. - Hair is tied back, eliminating complex hair-over-fabric simulation requirements. PHASE 3: ENVIRONMENT & LIGHTING - **Light Match:** The user's environment has diffuse, overhead indoor lighting (likely fluorescent), creating soft shadows under the chin and chair. The studio lighting on the source cloth is bright and directional. The new garment must be "relighted" to cast a shadow downward onto the user's abdomen and track pants. The bright highlights on the source cloth must be dulled to match the lower dynamic range of the user's photo. - **Color Calibration:** The source maroon is warm-toned. It must be slightly cooled and desaturated to match the color temperature of the user's image (which leans towards cool/neutral tones) and match the grain/noise level of the target photograph. PHASE 4: IDENTITY PROTECTION - **Facial Lock:** The user's entire head (hairline, eyes, nose, mouth, jawline, and ears) acts as a rigid mask and must remain pixel-unchanged. - **Body Integrity:** The generation of the bare arms and shoulders must match the user's facial skin tone exactly. The volume of the user's torso and the width of the shoulders must not be reduced or slimmed; the "tightness" of the tube top must result from fabric tension, not body warping.