Straighten UV island of more complex objects (Blender 2.81a)

[Vitus]

Same answer as in my other thread over here:

UV workflow practices for complex hard-surface models

Thanks for the quick reply. The asset is for flight simulator x/prepar3d and the outdated 3d engine of both platforms puts some limitations on the model. For instance one thing I found out years and years ago is that the platform performs way better using fewer, but larger textures instead of lots of smaller ones. Procedural material is out of the question as well, since the engine doesn’t support it. The same is true for a lot of modern functions, like UDIMs. It’s not supported by my platform, …

I’m working with an older platform that doesn’t support any fancy material.