When near objects we show the equipment’s normal 3D model. But as you zoom out, at some point we want to switch from showing the model to showing lollipop-style billboard/marker/pin/flag well above the terrain with a line connecting to the equipment’s location.
Something very similar to these screens.
What is the best technique to accomplish this? We will replace the existing model with (well, with what?) and let that track the object from a great distance.