WIP Airport

Looking great, Jim! It seemed like that model might already be manifold, or at least a good candidate for tweaking. Michael, self-shadowing works on all FSX objects. The manifold requirement does up the poly count, but it can be kept within reason if you know at the start of modeling that you'll need to build that way. Also, the switch is applied to materials, so you can mix larger parts with volumetrics with smaller ones that aren't manifold. All they need is to use separate materials, but then again that calls for more draw calls. Not sure which has the greatest drag on performance. For buildings, it's a no-brainer, as they don't have that many polys to begin with.
 
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