To fix missing parts in depth map 3D models, fill gaps using automated extrapolation or manual editing tools.
- **Extrapolation**: Uses surrounding valid depth data to guess small gaps—start with auto-fill in basic editors. - **Manual editing**: Directly adjust depth for larger/complex gaps (e.g., Photoshop, Blender) using a brush to match nearby values.
For beginners, use auto-fill for small issues; a brush for bigger areas keeps consistency.