Hi Larry, have you converted your FSX aircraft to P3D standard or used off the shelf P3D ones.
I have converted my Grumman Mallard to P3D v4.5 with PBR textures and I converted several Milton Shupe (and Team) aircraft including the Lockheed Lodestar, Republic XP-72, Beech D18 and the Spartan 7W Executive.
Reason I ask is I need an "Idiots guide to MCX for FSX to P3D conversions." I've just posted asking for help to convert an E7A cos I cant find one that'll work in my P3Dv4.5 setup.
I made this thread over at SOH describing how to convert FSX textures to P3D PBR textures but you need a P3D PBR ready model to apply them to first:
https://sim-outhouse.org/sohforums/threads/converting-fsx-textures-to-p3d-pbr-textures.163637/
I did a lot of digging for info when I moved over to P3D a couple of years ago and I found some gems but can't now find the links to the websites I used. However, I did save a lot of info to my hard drive (including an entire webpage tutorial) and I have packaged all of that into a couple of zip files for you which are attached to this post. Hopefully that will get you started.
I also bookmarked these YouTube tutorials which may help too:
The one above was really useful and was the 'light bulb' moment for me re. 'channel packing' (a term I'd heard mentioned but didn't understand). Here is a link to a Google search I did specifically for 'channel packing' info:
https://www.google.com/search?client=firefox-b-d&q=channel+packing
I modified the info gleaned from those videos (particularly on 'channel packing') and wrote my own mini tutorial for personal use and it's included in the attached zip files (see 'PBR Channel Settings.txt').
I also found this section on the P3D SDK webpage with info on PBR materials which was also useful:
https://www.prepar3d.com/SDKv4/sdk/modeling/3ds_max/modeling/modeling_pbrmaterials.html
Do you know of any tutes/guides/youtubers that break it down to pure basics for dumbats like me?
Hey, I was a dumbat last year too but the info is out there if you search long enough and if I can convert FSX models to P3D v4.5+ with PBR textures anyone can!
It is vital you start with a good source model though. It
MUST be a true FSX Model (i.e. one with both interior and exterior models in the model folder). It
MUST have either .XML gauges or 64-bit .GAU or .DLL gauges as 32-bit .GAU and .DLL don't work and 64-bit .GAU and .DLL gauges are rarer than hen's teeth!
Good luck and if you have questions...............ASK!