Topographic map with lines and heights

How do i take the 3d model that i have and make it have lines and elevations of said line on the map.

You want the contours draped on the 3D textured mesh model? Or just the contours on your map?

both would be nice but i mostly need the contours for the map with the height listed for each of the contours.

What software do you have available and/or are familiar with? This can be done in QGIS with the ortho and the DXF contour download direct from DroneDeploy, but CAD software would be much easier.

Ok thanks for the help