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USA Mesh?

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I'm looking for some advice on getting mesh for USA. I've got the Lago mesh for the British Isles, great stuff, and they really enhanced my sim experience. Now I'd like to do the same for the U.S. I don't do much GA flying, I do more airliner stuff, A320, PIC, Dash 8, and ERJ-145, but I do want some great looking terrain, especially since I know the terrain around some of the airports I fly to (thinking mainly of Alburqurque, Colorado Springs and of course Little Rock). I've downloaded some terrain from this site:http://www.simviation.com/fsdterrainusa.htmbut I'm not to sure I'm very happy with it, they seem to be made for FS2000.Any ideas on what mesh to use, I'm not bothered by paying for it, just looking for anything better than default.Lobaeux

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Lobaeux - I'd recommend a look at www.fsgenesis.com . Justin now has a complete set of 38-meter mesh for the entire mainland USA.Trip

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I'm such an impatient guy, everything I purchase has to be downloadable (well, except Wilco's Airport 2002, but I'm still made it wasn't a downloadable product), so I wouldn't be able to wait for CD's of mesh. I did download all the mesh from Simviation, installed the west coast stuff, it's not too bad, much better than default.Lobaeux

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Exactly. Don't pay for what you can download for free. The CD's Justin provides are a convenience, and I do believe he uses a higher LOD, but I can't see paying for what I've already downloaded and burned to disc.J

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HI Lobaeux4,Not sure what kind of internet connection you might need to download more than 3 Gb of terrain data, but there are several free 38.2m offerings under the Mesh Central tab at www.fsgenesis.com. You'd probably be most interested in the Ozark Mountains, Albuquerque, Taos, Superstition Mountains, Colorado Springs, Aspen/Vail, Rocky Mountains NP, and a few others there.Downloading the whole US set might take about as long as the two days shipping to Arkansas. :-)Justin

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Thanks guys for all the suggestions. I'll check out the free stuff on FSGenesis.Lobaeux

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Hello Lobaeux,The problem is, few know enough about mesh - to make informed decisions or to offer helpful advice. So we end up trying to compare apples and oranges.I have constructed a series of 6 (large) screenshots using all the popular source data resolutions readily available for the USA, as well as the default mesh. (10m, 30m, 100m (2 LODs), 1000m, and default)I discuss this thread in more detail, and you can view/download the screenshots at:www.fs-traveler.com/meshcomp.htmlHope this helps,Stevewww.fs-traveler.com

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Those screenshots are great. The set I'm using is 30m at LOD 9 or 10 I believe. I think FSGenesis uses an LOD11 or higher mesh. You'll see the difference, but you'll also feel it performance-wise.I have the ultra-high-res Grand Canyon mesh by FSGenesis and it's stunning. I can't see paying for the whole continental US at this resolution though - especially when 90m LOD9 mesh looks just as good as 30m LOD 12 mesh from ten thousand feet.But if you're the 'low-n-slow-VFR' type, the purchase may be worthwhile.Cheers,J

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Interesting perspective, isn't it. Actually, I believe the count is about 930, including partials along the borders and coasts.The US mainland extends roughly from -65W to -125W and 30N to 50N, or 60 x 20 = 1200 degrees (an order of magnitude check). And most of the data I downloaded to create my 30m mesh was in subsets of 6 files/degree (to keep the DEM files small enough to obtain for free) - some 5000+ files of raw DEM data. And that's just the beginning.Steve

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You do not need screenshots to show - that 10 m mesh is the best - or complicated explanations -You need to produce 10 m mesh - rather than pictures - Producing 10 m mesh with extensive coverage - that is what many can not do - just yet.Ray

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I think the point of the screenshots was to illustrate that not all meshes are created equal - that LOD has alot to do with how good the mesh will actually look inside FS.

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Yes that could be the idea!I rather put simmers on top if it! than just sit on the chair and look at screenshots. Just a different approach.

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What the H$#! is Ray talking about? Screenshots help you decide, HELLOOOO....

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. . . or more precisely,that final LOD is not as important as the source data it's made from.LOD 10 looks much different, depending on whether 90m source or 30m source is used. Just because a mesh product claims to be LOD 10 means very little. It's just a simple matter of changing one little value in the INF.What is MOST important is knowledge of the source data resolution--whether is was made from 90m or 30m source data. That makes all the difference.Justin

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HI Ray,Your web page states that all your mesh is designed with 30m source files.Does this include the 10m products?ThanksJustin

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Ultimately, you must decide what you want to achieve by improving your terrain mesh. If you fly the heavy metal and are viewing the world below from an altitude of 33000' and 450 knots, then you would probably do just peachy with one of the downloadable 30m mesh sets - provided you have the bandwidth to do so. If you don't have the bandwidth or desire to spend an evening downloading and manually installing terrain BGL's, then save yourself the time and trouble and score yourself one of Justin's (FSGenesis) CD's.If you are a sightseer and like those low and slow flights from the comfort of your Piper Cub, then there's a valid reason to go with the higher mesh provided through FSGenesis. You will need some horsepower in your box though to handle this kind of mesh. The difference between mesh resolutions and LOD at low altitudes though is striking.Lastly, as an alternative, you can download and lay down 30m downloadable mesh for the entire US and then layer higher resolution mesh on top of it. I am using this latter method w/ some "localized" high resolution meshes from FSGenesis and Orlando Sotomayor.Cheers,J

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BTW, you can find a whole host of Orlando Sotomayor mesh files here at AVSIM. They are created with 30m DEMs and sampled at LOD 10 (~38.2m resolution).

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What I say - and rather give prefference -Better release some mesh covering some areas as freeware or demos of shareware scenery - at different Lod or resolution - and let whoever like to have a go - fly over actually the scenery on the simulator - so you can have a more clear picture of what actually the scenery is about. Also do not forget - that we all have different fs settings - and what could show right for me - will not for you - there many aspects - that a picture will not display.Often screenshots can not really show or display details - or other features - as a real flight test will do.just my ideaRay

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>Lastly, as an alternative, you can download and lay down 30m >downloadable mesh for the entire USI did not know such mesh was available. Can you provide a link?Thanks, Steve

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Justin or whomever --Where can I download US Mesh CD's at? I didn't think that FSGenesis did that. I looked at there site and can only find disorganized files. I would like to see a 'coherent' gathering of files by 1 person :-)Clear skies

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HI Fred,Can't download CDs from anywhere that I know of. It's just not practical from my end. Broadband aside, 5-6 Gb of web storage space is a bit beyond my web budget at the moment--not mention the incredible bandwidth requirements of such a venture.Not sure which area your seeing that's disorganized. Under the Mesh Central tab is a variety of of 38.2m terrain mesh, "organized" by US region.Which part is not "coherent"? Are you looking someplace else than under the Mesh Central tab?Justin

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I'm trying to remember where I got mine. I don't even remember the name of the author to tell you the truth. It's not Eddie Denney's mesh either (although his stuff works just as well as any) - this was a step up from his. It was based on 30m DEM's - although I don't recall the exact LOD that was used. 9 or 10, I think? Anyway, it's not "pure 30 meter mesh" (because of the decreased sampling) but it's "pretty da*n good mesh that's >30 and <90" (it works out to be around ~40 or 70 or something, I forget) There was this really huge debate on here when the US mesh files first came out - the battle of the "my mesh is bigger than your mesh". There were some claiming to have pure 10 meter terrain resolution per DEM for less than 500K per region ;-) I think it was finally decided that in reality the entire US would take something like 4 gigs of disk space at "true" 10m. Anyway, it was quite entertaining. Just do some searches in the libraries and on google.com - you'll find some.All I know is I have a truck full of BGL's under ADDON SCENERY. J

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HI Jason,Yeah, that's that simviation set. It's not what it claims to be. It's NOT 30m. There's no way you can cover the United States with 38m resolution with only 490 Mb.It's probably only 76.4m, which might be possible, although my 76.2m set runs 543 Mb for the continental US, and another 201 Mb for Alaska. So, my 76.4m is 744 Mb, while his is 490 Mb, so I don't know what up with that.But one thing for sure, It's NOT 30m terrain. You're talking over 3 Gb to cover the continental US with true 38.2m terrain mesh.JustinFSG

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