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Bug - External model performance #46

Description

@BobDotCom

Describe the bug
The sim freezes for a few seconds when switching to external view for the first time. After the first time, switching to external view is just fine.

This also happens when switching liveries (though not on interior views). Because of this, it leads me to suspect an issue with the livery being applied to objects.

I remember something like this on the 787, and the fix was to parent all of the objects that share a livery. Could be related? See here: IskenderWang/787-family#89 (and the corresponding issue, IskenderWang/787-family#88)

To reproduce
Steps to reproduce the behavior:

  1. Launch the sim
  2. Go to external view

Expected behavior
Little to no delay.

Screenshots
If applicable, add screenshots to help explain your problem.

System (please complete the following information):

  • OS: Windows 11
  • FlightGear version: 2020.3.19

Additional context
My hardware is pretty high spec, it shouldn't have any issues with this.

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Component: ModelExterior 3D/textures relatedbugSomething isn't working

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