I am the creator of that track and stumbled across this forum post just out of curiosity, not knowing it was all about my track. BTW you would have got a much faster response if you had posted this in my own dedicated content support thread, which I habitually monitor. This is at:
https://forums.auran.com/trainz/showthread.php?83363-Content-by-MSGSapper
Creating that U.S. PBR track was one of the hardest Trainz projects I ever undertook and used up two
very intensive months of my time. I didn't get a lot of help with it from anyone so had to learn by trial and error what would work and what would not. The specifications, and some of the basic meshes for that track, came from here:
http://online.ts2009.com/mediaWiki/index.php/HowTo/Build_Procedural_Track_for_T:ANE
The goals here were:
1. To make a PBR based track that
actually looked like U.S, which most of the TRS19 built-in track does not. It is important to note that there was
no prototypical U.S. based track either built-in or downloadable from the DLS prior to my making one.
2. To have PBR based track which had a more prototypical ballast bed then that in the TRS19 built-in tracks.
Overall the project turned out fairly well and in my replacement of my old T:ANE procedural track on five of my existing routes when I upgraded them to TRS19 standards I noted few problems and the adjustments necessary were not much more then what I encountered when I replaced old track with the T:ANE procedural tracks that I made when I upgraded my TRS2012 routes to T:ANE. The main problem came sometimes when junctions were too close together. At little re-design of the track usually solved the problem. BTW I am very much aware that this track is less then perfect, but it is the best I can do at present with my limited experience with this type track and there seems to be few offers from anyone else to help make it better.
The Moire effect is the one area I have been unable to fix and no one else seems to know how to do it either and still keep the track prototypical. BTW every built-in TRS19 PBR track I have tried has that effect to some degree. It is more pronounced in my track simply because my ballast bed is higher. If you look at the TRS19 built-on PBR tracks you will notice all of them have extremely un-prototypical ballast beds that are often so low as to be almost non-existent. See this screenshot:
Here is a screenshot showing a comparison of my track versus two of the TRS19 built-in tracks:
Notice how low the ballast beds are for the two built-in tracks and as a result how the 3D PBR ground texture pops up through the ballast in a number of spots. It doesn't do that in mine. BTW the edges are meant to blend into the ground texture and be irregular.
The hardest part of my track project was trying to maintain height compatibility with older
non-PBR track. Jarrah apparently compensated for this in his built-in tracks by making the ballast bed very low. PBR raises the height of the ballast bed and ties in the track so there is an extremely fine line between what you can do and still keep the overall height compatible with older track. It took a lot of trade offs and juggling to finally arrive at something that would look good, be fairly prototypical and still be height compatible with older track. It might have been far simpler to establish a new height standard but I felt that many users would not agree with that and would want backward height compatibility with older track.
The bottom line here: I am sorry, but this project is so
huge, and my experience so limited with TRS19 PBR procedural track, that unless someone can point to
exactly where the problem is in the config.txt file
or in the meshes, and how
exactly it can be fixed, I am
not willing to revisit this project at this time as I super busy with other Trainz projects. BTW I provided
all my Blender project files with the content files for this track. These are with the
<kuid:439337:103187> TRS19 SAP Track U.S. 132LB SG Mesh Library on the DLS for anyone who wishes to make their own versions of TRS19 track or to look at how it was all done. So far no one has......
Please check out these old forum posts on the subject for a lot more information on this:
https://forums.auran.com/trainz/sho...9-U-S-Standard-Gauge-Procedural-Track-Project
and
https://forums.auran.com/trainz/showthread.php?153494-TRS19-PBR-Parallax-Issue-The-Moire-Effect
and
https://forums.auran.com/trainz/sho...rd-gauge-procedural-tracks-available-in-TRS19
Bob