Hello Lazyeight,
As Spud has said, the objects libraries were and are still developped for FSX.
I don't have P3D, and not planned to buy it yet.
But, Prepar3D may be the future of FSX.
It may be interesting to know why they don't appear.
A very large part of my libraries are done with Google Sketchup, and compiled with ModelConverterX.
ModelConverterX uses the SDK tools for compilation.
Some objects are done with Gmax, and are directly compiled with Gmax.
All my objects are compiled with dds textures, some with night textures : xxxxxxx_LM.DDS ( Brad's Bait and BBQ buildings).
To have an idea, can you test some sceneries such as Thumb Harbour (platforms are done with Gmax)
and some sceneries using my orange cones ( done with Gmax), Desperate Moose Lodge or CAS2 Moose Lake lodge.
Or, if you have Instant Scenery, you can try to do a small scenery, using my libraries.
According to me, the problems should be : the software used to design objects, the night textures in dds format.
Please, let me know !
Best regards,
Xavier