Me and a friend at school are doing an honors project for a Computer Science class. We're trying to find the aerodynamic drag coefficient of complicated 3D Shapes entirely virtual. We started out the project with a specific physics engine in mind. It turned out this engine "Bullet Physics" doesn't calculate air resistance for meshes. We've been looking online and asking around but it seems that we only come by really complex formulas that work in specific cases only or physics emulators that wouldn't do the job. TLDR:: Does anyone have any ideas on how to calculate the aerodynamics of complex shapes?