country map 3d model

Create a single-piece 3D model of the country of Turkey in a top-down map view. The model should be one continuous mesh (not separated into multiple parts). It must be solid white with no textures, no materials, and no color variations. The shape should be geographically accurate, with clean and smooth coastlines. Add a subtle and uniform vertical thickness to the model to give a sense of depth, while keeping the top surface flat and map-like. The Bosphorus Strait in Istanbul must be clearly and precisely carved through the model, distinctly separating the European and Asian sides, while remaining part of the same continuous mesh. No text, borders, city names, or extra details. Clean, optimized topology suitable for real-time use in Unity.