I recently installed FSGenesis landclass update and the complete 5 disk set of terrain mesh for the entire US. (Outstanding stuff!)My problem is this, when flying at let's say 3000' AGL, I experience what appears to be a zig zag line between my position and maybe halfway to the horizon. The length and width of the line varies. The first time I saw it, I thought it was a short section of river. When I climb to higher altitudes, the line sometimes takes on a more straight appearance, and you can see an outline that looks like a partial square. There also might be small irregular geometric shapes that show. When you fly towards this anomoly, as the textures adjust, the irregularity disappears. When you go to spot view and pan around the airplane, sometimes there are several of these display problems. It almost looks to me like the textures are not meshing properly and the sky background is showing through until the mesh updates. Despite this, the terrain mesh is stunning. The anomoly just makes the overall flying experience somewhat distracting.I'm wondering if any of you fellow simmers have experienced anything like this, and if you have discovered a fix. I contacted Justin at FSGenesis but was not able to get a work around.Any help would be greatly appreciated. Thank you.My system specs:Home built P4 2.4 GHZ (not overclocked)GeForce 3 display adapter w/ 64 meg display memory512 meg Crucial memory

Hi there:I see these untextured polygons once in a while myself, and not only in FS ;-) Obviously, this is related to the way FS renders mesh details at greater distances. The background is rendered at lower detail and the generalization of the data leads to edges where it meets the high-res display, resulting in untextured "slivers". I don't really know a complete resolution but it might help to install a mid-res mesh that acts as a buffer between the high-res FSG mesh and the low-res default mesh. This way, FS has three levels of resolution to chose from. I know that this helps with minimizing those water-crawling-up-the-hills problems at mid- to long distances and assume it might help with this as well. This assumption is based on my observation that the slivers show up mostly in areas for which I have a high-res add-on mesh only.If you don't have a mid-res mesh available of the US, try the three levels of detail available for Japan (freeware) here: http://members.at.infoseek.co.jp/fsclubnet/index.htmlLet us know whether this helped.Cheers, Holger

Greetings Holger,Thanks for your reponse and explanation. Based on my message posting over at FSGenesis and here at AVSIM, and the few replys, I was assuming that perhaps my rendering problem was specific to my machine setup only and just an issolated case. I searched for messages for anyone with a similar problem but came up empty. One observation I should mention is that these display arifacts are most noticable in hilly and mountainous areas. Do you know of any mid-res mesh available for the US? I will try your suggestion with the Japan mesh scencery and see if that makes a difference.Thanks again.Regards, WallyGator

If you already have FSGenesis' 38 meter mesh for the entire US then a "midrange" mesh is not of any value.However, if you also use FSGenesis' 9 meter mesh for areas like the Grand Canyon, Justin has already included a 19meter buffer mesh around the core to address the transition issue.as a point of reference, I have all of FSGenesis' stuff installed on an Antiquated Dell XPS-T500 Pentium 3 (with 640mb) with a GeForce 2 Ultra graphics card(64mb). I have the terrain slider shoved over to 85% and all the Scenery bits maxed -- since I'm a low and slow flyer.I get the occasional slivers but not eneough to affect my enjoyment. Justin has addressed this as Hogler just did. It's inherent in FS and not totally resolvable.Sooo, do as I do. Just ignore it and focus on the positive aspects of the game. Or you can "pretend" they are alien spaceships that defy human logic -- that always works ;)Racartronit means something, but I just can't remember what

Ho Racartron:you make good points in your post but I don't follow this one:"If you already have FSGenesis' 38 meter mesh for the entire US then a "midrange" mesh is not of any value."Since the default mesh for most of the US is compiled at LOD6 there's still a sizable gap in resolution to the LOD10 mesh. If a "buffer" mesh works as we think it does than a LOD8 (150-m) mesh could indeed make a difference. As you state, FSG implements a buffer for even a similar difference (9 to 38 m). Unfortunately, I don't know of any LOD8 mesh for the US.As an example, I notice that using my LOD7 mesh files of British Columbia as a buffer for my (partial) LOD9 mesh helps reducing blue slivers (I believe the default mesh is LOD5 for B.C.). The same benefits occur when installing the mid-res Japan mesh "underneath" its high-res companion.Cheers, Holger

"If you already have FSGenesis' 38 meter mesh for the entire US then a "midrange" mesh is not of any value."What I was trying to say was if he has the entire US at one level (38 meters) there is nothing he can do to prevent those silly slivers within the US. This was in support of your comments about the drastic difference sometimes encountered when changing levels. Having said that, I don't recall any slivers up near the Canadian/US border where Justin's 76 meter butts against his 38 meter. Oh well, time to stop cramping my little grey cells and fly my new FSD Porter off into the Alpine wilds of Switzerland. LAGO's mesh ain't too bad either. ;) Racartronit means something, but I just can't remember what

I see them as well. There may be two different situations we are dealing with here.* when the slivers appear when using high res add-on mesh, I can usually (always?) eliminate them by back-filling with lower res mesh.* but when the slivers appears in the default mesh as well, I don't believe I have ever been able to remove them.For example, when traveling WNW over Maui, heading toward Molokai, I see a sliver on Molokai when using the default mesh (as well as with 2 higher resolution versions). I've tried back-filling with two different mesh files of different LOD, with no success. Do you know if the slivers you are seeing are still there when using only the default mesh?If you can provide coordinates (directions) for one of these locations, I'll try to see if they also appear in my mesh. If so, I have lower resolution LOD9 and LOD7 mesh I can use as back-fill to see if I can eliminate them. Stevewww.fs-traveler.com