racing track 3d model

Create a detailed car racing loop on a single continuous terrain mesh. The terrain should be uneven, natural, and shaped with rolling hills, slopes, and organic height variations. Generate a fully connected road network forming a closed circuit suitable for cars. Include a clearly defined flat start–finish straight section with smooth transitions into curves and elevation changes. Add one integrated ramp as part of the track, designed as a jump or steep incline, fully merged into the road geometry. Ensure all road segments are seamlessly connected without gaps, floating parts, or broken topology. The entire environment, including terrain and track, must form one coherent, watertight 3D mesh with realistic proportions. Roads should follow the terrain naturally, with subtle banking, smooth gradients, and readable flow. Avoid unnatural sharp edges or disconnected elements. Prioritize clean geometry, consistent scale, and a visually clear racing layout.