actually you had it vice versa , only the texture on vegetation is hand made in imperator but reliefs are 100% generated from a heightmap data . for example look at persia and its heightmap .
also in ck2 , imperator , ck3 all you do is make a heightmap and import the map to the editor and it make highly detailed reliefs that then you tweak its elevation and passages (ask me about it i have made a dozen private mods using this method) . or if you wan your own artistic touch you can hand draw it like for vanilla ck3 or vic or at least simplify the realistic mountains with a brush . but in case of imperator instead of hand made moutains am sure they imported a real heightmap to the game .
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notice here in ck 2 in after the end mod how things looks like and way better than vanilla.
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meanwhile if you go to ck3 or vanilla ck2 you notice that the mountains are more of brush work and not converted heightmap
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another example of one of my own test mods
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so yeah , so far imperator is the ONLY game that use 1 on 1 heightmap accuracy , i cant tell about this game but for ck3 and vic3 either they did smoothen the result or its fully handmade with a brush and thats why elevation look so bad in them ( well not bad bad , just bad compared to a real heightmap result)
An appreciated correction, thank you. I am even more confused now to know the devs handmade such artificial-looking 3D landscapes in Project Caesar.
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