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MSFS SU6 Bgl Format Changes


Staff member
FSDevConf team
Resource contributor
SU6 has changed the format and attributes of aprons, parking spots and approaches. Asobo has recompiled all the stock airports (as far as I can tell) to reflect the updated format. As a result ADE will not show aprons when loading a MSFS stock airport. The decompiler needs up dating. Patrick Germain has kindly offered help and has updated his own code as used in his BglViewer and Airport2Project tools. At the same time he has provided me with a way to use the updated decompiler in ADE.

It will take a little time for me to integrate his decompiler and make changes needed to handle the new attributes. I hope to get this done in the coming few days.

I thank you for your patience and thank Patrick for his help
Thanks great to hear
I also see Asobo are changing the LOD limits on models as well

In order to make the sim work properly on Xbox, we need to optimize the performances, and thus, track down the performance-eating items displayed on screen. Among those are the LODs with an excessive amount of vertex. On SU6 we will offer 2 ways to identify them specifically in your projects, either by enabling the "Display LOD limits" or with the Statistic Profiler tool. For now it's just about identifying them in your projects, to help you correct that (create LODs with less vertex).

In a further update, in 2022, we will reach step 2, and those objects won't be displayed in the sim anymore. But that leaves you several months to edit your packages - if needed! maybe your LODs are already managed within the acceptable limits- and anticipate this change.
Very hard to create tools or content when the game itself is constantly changing. I'm guessing commercial developers are having fits updating their products for each new sim update.
SU6 has also affected how the 'roughness' value in the materials for a model is used.
I've now successfully got the new format procedures decoding in msfsbglxml, albeit with a few new values to figure out. I'll also be looking at other changes and getting msfsbglxml and bgllib updated.

As part of this work I'll get to updating the Wiki with the updated information.