Earendil

When it comes to professions and apprentices, that is a local phenomenon anyway. No adverse effect on path finding. To the contrary, that lightens the load. As only non local citizens require heavy path finding, e.g. armies, bandits, traveling birds in autumn, though those are a bad example as they fly ;-). All commoners can use cached computations. They go to work and stay there for a while, then some celebration and shopping. A lot of talking and maybe flirting and admiring, but that's it. Only few can afford holidays and travels frequently, researchers more maybe? Armies bound to only occasionally updated "roads" mostly for logistics reasons. Local short term path finding at frontiers at operational level is another story. That is where the trees play a role. But that is more static than in 0AD where the only thing to see often is brutal killing, no friction, strategic warfare. And it requires micro there where your generals handle it here. Formations progressed, that helps. Only group leaders require path finding. Here officer system helps: War isn't every unit (group) finding a way always. Adversary armies most often hold lines. That's why soldiers' life is boring and senseless digging and constructing, moving predefined paths - until this sudden moment, death not far. These operational units are the only having path finding switched on. (that includes mushroom gatherers, so it depends on the action performed, as it is event driven, that toggle is computational not expensive) Oh they abducted your quarter general? Speculate about her knowledge getting extracted, exposing your weaknesses. It may be time to sign that peace treaty or barricade all paths to your small peaceful realm. General mobilization is another option. The choice is yours.

I agree. Yet as far as I understand the proposal, it is meant as a onetime computation, e.g. on map export. (that only concerns 0AD; it is not useful for other ventures which rely on trees, forests as strategic component)

That quick battle mode is what 0AD is for. 0BC complements with a more continuous experience. Enjoying the world. Epic adventures. Settling along merrily. (it will be less deadly and less artificial)

Fluid simulation is costly. We needed to apply some simplifications That dependency was possible even with MuteLovestone's basic water resource mod I agree water is one of the things on my gameplay wishlist. I plan it even in different aggregate states. Ice and steam. Great fun

It is possible to merge the obstructions dynamically but I wonder if gameplay would suffer? Without roads Walkers in a row? Why not. => Formations. Already there. Effects also. Yes I like some more economy and loveliness. Like my profession and apprentice system I urgently need to overhaul

The C++ code wasn't the prob per se. The renderer choices were a different topic. See sander17's effort. Yet it is possible. COLLADA isn't too bad. Now OpenMW supports it. All great progress everywhere. If one is offline for some time. Otherwise it feels like forever. Like progress throughout history was soo slow when you lived in that certain time. Maybe that's a good thing :)

In which way tough?