You are transforming your garden into an interactive AR environment. The main goal is to scan the entire trail of your garden to create a digital replica that serves as the foundation for your AR experience. By doing so, you can accurately place virtual objects along the trail, allowing users to interact with them through an AR application on devices like smartphones or tablets.
To turn an existing environment or object into a 3D digital scene, you likely want to get into Photogrammetry. All Unreal Engine users get a license to Reality Capture which is the best tool for this. There is also the free phone app RealityScan which does the basics.
For large outdoor areas, drone photogrammetry is the best way forward.
thank you so much if you have any tutorial or anything please share