The best way to build a depth map 3D model combines capturing depth data (from stereo cameras, LiDAR, or AI) with 3D reconstruction software to process it into a usable model.
- **Capture depth data**: Choose your method—stereo cameras (for paired images), LiDAR (e.g., iPhone 12+ or professional sensors), or AI (like MiDaS for 2D photo depth maps). - **Generate a point cloud**: Use software like MeshLab or RealityCapture to convert depth maps into a 3D point cloud (a set of spatial points). - **Create a textured mesh**: Refine the point cloud into a textured mesh (your final model)—this adds surface details and color for realism.
For beginners, start with free tools like MeshLab and LiDAR phones—this balances ease of use with quality results for simple projects.