I am still figuring out but can't find any source so far. I have virtual globe book but they did not mention any example, etc about move controls depending on altitude from surface. For example, move controls on maps.google.com are slower when closer to surface. Dolly from or toward surface at exponential rate like in “Powers of Ten” movie.
I tried implement mouse and keyboard controls on my program but controls are too fast when closer to surface or controls are too slow when further from surface.
Does anyone have good sources about example?