[P3Dv4] Casablanca changing runway textures

[Er!k]

Hi Thorsten, I have a small issue with Casablanca. When I landed at GMMN I found that the runway textures change, I have attached 2 pics. Any clues? I am using FTX Global only, no airports in the region.

[horst18519]

Is the FSDG-Apt ALT Files area in the scenery library active? If that is the case, I don't see any reason why it wouldn't work, except for another ALT file for GMMN that interferes with ours.

[Er!k]

There is indeed an ALT file in the C:\Users\\Documents\Prepar3D v4 Add-ons\FSDG\scenery\world\scenery folder named AFX_GMMN_ALT.bgl

[horst18519]

Yes. That file controls the airport elevation and is part of our FSDG-Casablanca addon. I'd expect there is another file somewhere that conflicts with this one, though.

[Er!k]

A full reinstall did the trick! Thanks for the help

[Jeepee]

Hello all,

I'm experiencing the same issue with the runways/taxiways textures.
A full uninstall followed by a new install didn't solve the problem.

Depending of your location, the default textures are shown, and a few meters further or higher/lower, the FSDG textures are appearing.

[Er!k]

Hi Jean-Paul,

I also digged further into this issue and the issue is the FSP payware planes, in this case the 787. If you disable Ai you'll notice the ground textures are OK. For now I swapped the FSP 787 with the UTT 787 to 'solve' the issue. I have contacted Missi but he says he can do nothing about it

[Jeepee]

How strange !!!
Unfortunately, I don't have the UTT AI aircraft. Only the FSP ones are installed on my system.

I guess I'll have to live with it. A pity

But thanks anyway for your feedback :-)

[Jeepee]

Yes, indeed, I can confirm.
When I disable AI traffic (Airline traffic density set to 0%), I don't have the issue anymore.

What could possibly cause a conflict between an AI traffic (texture or model ?) and a scenery texture layer !?
I don't get it

[Er!k]

This is a snippet of my conversation with Missy, FSP developer...

I use -1 and 1 z-bias for my model. But this setting sometime interfere scenery ground polygon layer. Especially sceney z-bias level value is too low, surface flickering will happen with my MDL. So I hope scenery developers start their ground polygon z-bias from -4 or lesser, Or +4 or more. MDL need z-bias level ~-2~+2 for mdl. I assume this surface flickering/disappearing problem is caused by butting of z-bias between mdl and bgl

I have just purchased GMMN and confirmed all of mdls of mine have same problem as yours on this scenery. This scenery never accept any z-bias except 0 in aircraft mdl. No hope..

I think this is purely compatibility problem between FSPXAI and FSDG. Ever had same problem at flightbeam KSFO and flytampa KLAS, but z-bias edit -2 -> -1 were good solution for these scenery, but not same for FSDG GMMN.

So I have to change every z-bias of my planes mdl to 0. But this treat bring other problem to my model surface especially at night. It cause ugly light splash flickering on the aircaft surface. To avoid this problem, I have to set -1 ~ +1 z-bias. But that treat is harmful for some scenery surface.

[Jeepee]

Thanks for the info.
Even though all this explanation sounds Chinese (or should I say Japanese) to me !

But if I understood correctly, it looks like it's hopeless to get the issue fixed if we use Missi's FSP AI models in Casablanca :-(
Oh well...

[Er!k]

Yes, a very technical issue... But there are UTT models comaptible with P3Dv4, so no problems to swap them. I only did it for the 787's flying to GMMN (Royal Air Maroc and some others).

[Jeepee]

Sure, but I won't install a new AI model just to fix one scenery…
Thanks for the hint, though !

[horst18519]

This is not something we can fix or change. Our sceneries use the latest P3Dv4 technologies following the P3Dv4 SDK. We expect every developer to do the same.
Our sceneries do not use -1, -2, -3 or -4 zbias values. From our point of view, there should be no reason to run into incompatibilities. It's sad that those AI models seem to be incompatible, but it's nothing we can fix.