Converter sólidos em surfaces no Civil 3D

It's undeniable that the 3D solid tool is very effective for developing complex surfaces and quite useful for developing structures for civil works. However, in the Civil 3D era, it would be interesting if they interacted well with the Surface tool in Civil 3D, since our earthworks, rock excavation, and structures project is all on this platform. This video shows how I can generate these structures in 3D CAD and then convert them to surfaces. From there, it opens the way to other possibilities, such as the one suggested by our friend Oscar, who would like to generate surface channels of circular pipes for canal irrigation. These can be perfectly developed using 3D modeling tools and then converted to feature lines and finally inserted within a surface normally.