Well as time has gone bye and the OOM are more frequent its time to start moving over to " X plane 10" 64bit reason!  I looked at prepar3d Not really impressed being it is 32bit simulator so its already limited and just a copy of FSX. And for a time I will have to fly 737ngx and 777-200 on  Boston virtual ATC. at least no OOM on line, Not willing to give those up "Great Planes PMDG! So any hoot when PMDG comes on board with X plane AT that point FSX will go in the History can, got a lot of years of fun out of FSX. BUT she's on her death bed and making funeral arrangements.     

One interesting thing about X-Plane is that it uses OpenGL instead of DirectX for graphics.

 

Does anyone know if OpenGL is technically similar/better/worse than DirectX ? Or is it one of these subjective things?

Does anyone know if OpenGL is technically similar/better/worse than DirectX ? Or is it one of these subjective things?

 

I wouldn't say it's 'better' or 'worse' than DirectX as they both pretty much do the same thing and make use of shaders, rendering techniques, HDR etc that graphics cards are capable of. The main difference is that OpenGL is a cross-platform API whereas DirectX is a Microsoft API and only works with Windows-based systems as well as Xbox.

 

I'd say the reason LR chose to go with OpenGL for X-Plane is so they could develop a cross-platform simulator that will work on other OS including Linux and Mac.