FlightGear is a professional open source 3D flight simulator. You can review 3D visual world flight simulations of various countries and cities through the scenery data.
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Flightgear 2018.2 build was tested on Haiku R1B1 and nightly hrev52525. I worked on porting FlightGear 2018.2 for Haiku for both 32-bit and 64-bit (GCC7+) variants. No build issues.
I reviewed the current 3D graphics capabilities and multiplayer support networking on Haiku which seem fine in comparison to BSD/Linux. What I like about Haiku is that it seems stable with most games I’ve ported to it. Haiku has a cleaner approach to certain things.
Of course, modern 3D hardware accelerated video drivers for Haiku are needed Yet, knowing developers can develop, render, and port modern 3D simulations on Haiku is a great thing indeed. .