...Jesus, just imagine fog of war in that monstrosity!
All of these calculations prove that the concept is indeed a complex issue. Oh, i agree. The implications are enormous; gameplay, perception of Space, orientation, direction, you name it. But, the whole point of a true 3D galactic model can be summarized in just one simple comment; New features! That's all.
Don't try going beyond the above reasoning and you'll get what is at stake here. Programmers DO what they must to implement such a system (widely used in other games, btw). Is it "adaptable" to GC, i think so.
Numbers? Kay, let's theorize from a different pov - mine... this time.
Every sector has a 15x15 parsecs grid. I'll use a Medium (6x6, 36, 8100p) scale map for the following comments, also. Now, reduce the default parsecs count to a relative number to the map size, SIX by SIX triangulated. Total would be 36x36=1296 for every single plane/layer. Stack only two more, below and above. Result is 1296x3=3888 in total.
8100-3888 would mean 4212 less parsecs for the "same" medium map (but within an entirely new configuration), you'd say?
NOPE and here's exactly why;
Depth.
Forget the cube analogy for a moment (although i found yours quite accurate for the purpose of demonstration, biased - but still accurate) and put your starting planet in a corner on the "
Above Layer".
- You'd see two different shades of Fog (with either transparency levels or coded color slices), directly below but shown as two separate planar type grids - lined for clarity.
- Your ships can now use XY'Z'YX primes to target any parsecs within reach (as is with the previous concept). Only difference is that the trajectories are triangulated instead of tracked through the cardinal/points orientation system.
- Your starbases influence(s) ratios can have a sphere instead of a circle.
- Your planets can be seen (or evaluated by "real" locations/distances perception) from multiple angles, including underneath!
- Your empire's territory is represented by cubes instead of squares.
- etc...
And that's for THREE layers only.
3D rocks, better believe it.

- Zyxpsilon.