Hi. I have had the Fly Tampa OMBD scenery for years and never fixed this issue. When I arrive at OMDB and come off the runway, most of the taxiway textures disappear to be replaced by flickering ground textures. See screenshot: Has anyone else had this at this airport (and fixed it!)? I Googled it but didn't find much, except that Aerosoft Manhattan scenery can cause some airports to do this (I have posted on that subject before myself): but with Manhattan disabled in scenery.cfg, I still get this awful 'peeling back' of the ground as I taxi off the runway. It only happens when I arrive at OMDB - not when I load a flight at the airport for departure. Difficult (long-winded) to troubleshoot as it only happens after a proper flight - slewing there doesn't bring on the flickering. Any insight very welcome, please. Thanks, Martin

Were you loading and checking out several airports in one shot? I found this issue any place I would load (if I kept loading many airports in on session).

I get this at OMDB and KBOS - latter cured if I disable Aerosoft Manhattan, but no idea about Dubai. I do get the problem sometimes at other airports but can usually cure it by making a new flatten bgl file or adjusting heights in the AFCAD. Can't seem to fix OMDB though - still experimenting. M

This kind of (bleed through) problem is almost always caused by undulations in the underlying ground scenery which in some positions bleeds through the visible airport's ground scenery. Very often the result of Mesh scenery for the geographical area which includes the problem airport. A general "Flatten Switch" at 34 feet directly under your OMDB entry in your Scenery.cfg file, for the area directly around your airport, combined with the same 34 feet (runways and header data) in your Afcad (AF2_OMDB.bgl) file, should solve your problem. But.......there are also other possibilities...... E.g. I have 8 scenery items in the United Arab Emirates in the following FS9 scenery library priority sequence: Abu Dhabi AirportDubai CityDubai Burj Al Arab HotelDubai IslandsDubai LCDubai AirportSharjah Airport And much futher down in the listing: Dubai Mesh. If you have any of these installed in your FS9 (possibly with other names) then you should firstly check your scenery library priority sequences before trying a (Kill All) "Flatten Switch" because in my FS9 it was not necessary to use one, at least not yet. Good luck.Hans

I have just read you post Hans (thanks for replying) and agree 100%. In fact, this morning I made a new flatten file, but I made it a tiny fraction below the airport default altitude of 34 feet, the reasoning of course being that the Fly Tampa airport scenery will not be affected, but the underlying terrain will be ever so slightly lowered, thus curing the problem of ground textures showing above the airport scenery files (especially 'base.bgl' - which adds the taxiways). I disabled the flatten.bgl file in the OMDB scenery folder and am now testing. The first two flights were successful - I arrived at OMDB (I slew gently over from nearby OIBK) and there were no texture problems, no flickering or bleed through. But I think I need to test a few more times before I can say I have cured this. If (big if as yet) so, I can post the new flatten file here. Will report back.. Martin

I have not been making any progress .. My flatten bgl doesn't work (I have tried various elevations). It's not, I think, caused by any other scenery in my library as when I run the sim with only the default scenery.cfg (i.e. out of the box) plus OMDB, I still get the ground textures coming through the taxiways and aprons (but runways are always OK). I have tried changing the default AP bgl file elevation with ADE9x, even deleting the file. I've changed the Fly Tampa AFCAD elevation, up and down: I have put a flatten line in the scenery.cfg (various elevations) - nothing works. The runways and or the taxiways & aprons peel back as I move along them revealing the ground texture. If I knew which textures were creating these I might be able to do something, but any editing of the base.bgl file in the OMDB folder (scasm) disables the file completely. I never used to have this problem but as it is Dubai as an airport to fly into is unusable at the moment :-( M

There are two reasons for this,

1. A mesh scenery is installed which is causing ground to show through
2. Another scenery has been installed which is interacting with this scenery. This may have been a random old scenery which was once installed many years ago and was maybe just a single bgl file.

In both cases you will have disable/enable scenery entries in the scenery library to figure out in which scenery the troublesome file lies. Shez

Shez, thanks for trying to help, but you didn't read what I wrote earlier today: but I did say in my last post that this happens even "when I run the sim with only the default scenery.cfg (i.e. out of the box) plus OMDB ...".So in that case no other scenery is installed, mesh included (my scenery.cfg file shows [general] at the top, then [area.001] to [area.037] (Propeller Objects), then I have my OMDB as [area.038], and that is it.... The only 'culprits' logically, can be the OMDB scenery itself or the OMDB file in FS9/scenery/asia (AP962230.bgl) - and if I remove that completely as an experiment I still get the same problem at Dubai. I tried editing the latter's elevation too, as I said above, using ADE9x, but again, in vain... Am thinking I am going to have to avoid flying into this airport, but on the other hand it wasn't like this when I first bought it - I don't know what has happened. A reinstallation doesn't help either. Sigh! Not sure what else I can try!

I have this scenery and it works fine for me. Is there somehting in the documentation about a flatten switch entry in the scenery.cfg file? Or try and reinstall from scratch or put it on the top layer in the scenery.cfg. Shez

Hi - thanks again for the replies. I just had a 'good idea' - one I should have had days ago!! I have not only my usual FS9 installation on my PC, but also a 'clean' one, with all files and folders as installed by FS9 + FS9.1 update - nothing added after that. I have just copied the OMDB scenery and texture folders from my normal FS9 setup to the addon scenery folder of this 'out-of-the-box' installation - and then, after a bit of renaming, have flown using that 'clean' setup instead: I have only had a couple of runs as yet (a pain to troubleshoot this as you make a real flight to get the error to show itself - you can't just slew to the airport), but no texture errors at all upon landing. If I try a couple more times and still no problems then I guess the error lies somewhere in my FS9/scenery folder - I'll see if I can find the culprit file(s) and post back.. M

Embarrassingly the 'culprit' turns out to be my modified version of AP962230.bgl !! If I remove that and put back the original, the ground texture leaks stop, at least in tests, slowly slewing from OIBK they do. Will try a 'real' flight tomorrow. I made this file a year ago as the default AP962230.bgl file causes ILS landings to touch down way off the runway at the Fly Tampa OMDB. With my version, they land centre runway - but as it seems to be causing such bad texture leaks I am going to have to remove it and go back to landing VFR at Dubai. It worked fine when I first made it, I am sure, but fiddling with the default FS9/scenery files is always a bit risky - I always back up anything I change of course. Not sure if there is any other way of correcting the file AP962230.bgl - the runways in the FS9 OMDB and the FT version are not in the same place and for some reason ILS landings there seem to favour the default AFCAD over the FT one. I posted about that particular problem a year or so back. Now it's unresolved again. M

I think if you open the AFCAD file in one of the design programs it should be easy to modify. Just curious, what is the file name of the AFCAD file and where is it placed? Shez

No, I can't recompile the xml file afterwards - I get errors. Even if I decompile the bgl and recompile without changes it won't do it. The file is AP962230.bgl I have used ADE9x to help, but still have a problem there. I posted this question separately, so won't duplicate the detail here: http://forum.avsim.n...-needed-please/ Martin

I read somewhere that if you remove [land_3 and land_5] bgl,s that this will cure the flickering.I have done that and it was OK last time i landed at OMDB.I have backed up those 2 files incase the problem returns.

That didn't work for me - as I say, it was a badly 'corrected' default AP file. Glad it helped you though. M.