@Preben:
You know I see it on my setup and in the photos I have posted. Maybe my rig is just getting to old to handle this stuff.
I am going to do a NVidia driver update and remove a few things out of my machine and take a look at this again.
That diesel engine is the only thing so far that exhibits this behavior. I have 6 versions of it over 3 years, all with different textures. I set them all on a map and had one facing north and south, the other east and west. From the west side I see these line patterns in the shadows of the rails. ( they are very small diameter 1" to 2" only) This may be part of it. But when I look at them from the north side, My normal map seems to diamond out from a distance, and then as I move closer to them, where the shadow line clip moves along the terrain. This disappears as I get closer.
I am going to try and capture this behavior on video and post it. Just to hard to try and explain.
Also this behavior was in this version of GG and possibly the last 1.132. SO I am not entirely sure that this is all a shader issue. I am starting to think that this is a model and texture issue. But I am going to rule out all drivers and try it again.
Just completed windows 2nd Tuesday of the month update. Now I am going to update my GTX 660 which is so old that any new update almost does not even cover it. Rule those out, then rework the model and normal a bit and see if this will take care of it.
I like so much detail in my models, that I just may be shooting myself in the foot with it. I will see.
All other testers seam to be having little to no issues reported, so dont change anything for just this one model.
(Face Palm)!!!
What an airhead I am. I am going to PM a download link to you of this media for you to mess with also. All my other train cars, except one box car act great in the engine. and this one only acts up using light mapping. Give me a few minutes on the link.
And Thanks again for your work on these. They will be a great asset and I hope that they are incorporated into the stock shader set.
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2400 Mhz, 4 Core(s), 4 Logical Processor(s), 8gb RAM, Nvidia gtx660, Windows 7 Pro 64bit, Screen resolution 1680 x 1050.