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prostate_bmw

I have a problem with terrain

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hello, i'm working on a photoreal scenery of LTBW and surroundings for FS2004. LTBW, hezarfen is a small ga airfield in istanbul.i've completed the earth texture, the water masks, and i've adjusted the coastline for the original texture to meet up with the photoreal texture. then i have edited the airport AFCAD file so that it fits right on the texture.when i moved the airport, i noticed that the land is not flat on the new position. as you can see on the attachment, the runway sits on an uneven ground. i have an addon mesh for the whole country.i try make a flatten polygon, but everytime i apply it, there's no change.. how can i solve this problem?thanks, Tuna77590476.jpg

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hello, i'm working on a photoreal scenery of LTBW and surroundings for FS2004. LTBW, hezarfen is a small ga airfield in istanbul.i've completed the earth texture, the water masks, and i've adjusted the coastline for the original texture to meet up with the photoreal texture. then i have edited the airport AFCAD file so that it fits right on the texture.when i moved the airport, i noticed that the land is not flat on the new position. as you can see on the attachment, the runway sits on an uneven ground. i have an addon mesh for the whole country.i try make a flatten polygon, but everytime i apply it, there's no change.. how can i solve this problem?thanks, Tuna77590476.jpg
ok, here's another step. i found the ..dem.bgl file which corresponded to the surrounding area of the airport and removed it. it seemed to work now. but, the runway starts just after the coastline, creating a small hill.when i apply the flatten polygon, there becomes a slope from the runway towards the lake, which is not satisfying due to its decline angle. do i need to create some sort of a hill by gmax?? or, is there a way to steepen this slope? (i'm trying to read every possible tutorial and manual of the tools)please check this attachment:59547%38%302.jpgi need a steep cliff, like the green arrows. i hope the image is easy to understand..thanks, tuna

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Hello:That's an interesting airport location there! :(Try placing the add-on terrain mesh BGL(s) for that area in the FS2004 (FS9) Scenery Library very low in the stack of layers.Why? In FS9 Terrain mesh BGL file priority works in reverse of other FS scenery files (normally BGLs placed on :"top" of the stack means higher display priority on top of other layers; NOT SO WITH FS9 MESH!).Put the add-on terrain mesh BGL(s) for that area down at the bottom just below "Default Scenery" or perhaps just above "Default Terrain"... and see if that helps for your project area to display better.You might also want to make a polygon near the shoreline (or better yet for the entire lake) which closely matches the outline of that lake, and set the polygon to be a "water flatten" at 7 ft..The finished water flatten BGL can then be placed in the FS Scenery Library in a layer underneath the photoreal land and water textures which drape over it, flattening the water and cutting the shoreline off into more of a cliff.The FS2004 (FS9) flatten can be either an Area16N SCASM-generated flatten or an FS2004 SDK BGLComp-generated LWM flatten with a single elevation of 7 ft. used for all polygon vertices.Be aware that the default FS9 supplied terrain mesh resolution (probably 611 meters between elevation data points there in the mesh BGL files used for FS9) may cause some "squaring off" of edges of the desired flatten data points over to nearby positions of FS terrain mesh elevation vertices; these vertices may be farther away from the airport area than desired, causing imprecise results (sometimes called "aliasing").Depending on the resolution of the add-on terrain mesh you have for the area, there still may be some concern as to the precision with which FS9 is able to display water and airport flattens.If you want better control of how your terrain will render, and better precision for the rendered shape of your water and airport flattens, you may need to use the highest displayable resolution terrain mesh there.FS9 can visibly render up to an LOD 11 terrain mesh with elevation data points as close as 19.2 meters between each vertex; this requires that TERRAIN_MAX_VERTEX_LEVEL is set to "19" in your FS9.CFG file at:C:\Documents and Settings\[active profile or account name]\Application Data\Microsoft\FS9\fs9.CFG If you have access to digital elevation maps (DEMs) of the terrain there, you can make your own mesh BGL following the SDK instructions; be sure to use data which is converted using a GIS utility into a Geographic (Latitude/Longitude) Projection using a Datum which is WGS84 with Units in arc degrees.If you cannot get access to DEMs that are 20 meters or closer between data points, you could still use FS2004 SDK resample with a lower resolution source DEM such as 30 meters or 76 meters between elevation data points to force output of the terrain mesh BGL with elevation points at LOD 11 so that you still have more "artificially added" elevation data point vertices available in the FS9 mesh for more precise "finer mesh resolution" rendering of the airport flatten and water flatten shape(s).According to Google Earth, the lake elevation is 7 ft., the RWY 05 start point is 20 ft., and the RWY 23 start point is 63 ft., so LTBW in Hezarfen, Turkey would normally be a sloping RWY in the real world.However, if you wanted to use the flat textured RWY polygon surfaces and/or night lighting available via AFCAD or another FS9 compatible FS airport scenery utility, you would also have to make the terrain under the RWY flat.Additionally, if you wanted any AI traffic there, flat RWYs are required in order for AI aircraft to work on a RWY surface.Most designers just put (1) large flatten under their airport area to achieve this, but you would probably want to be careful to preserve the interesting terrain nearby, so you would need to create a small higher rectangular flatten just under the RWY/Taxiway areas, and perhaps another flatten at a lower elevation under the airport parking areas nearby.You can make a rectangular flatten (using a number of small square flatten areas if need) using a separate utility; although SBuilder can do this, I personally often use "FSTFlatten" (which can do either Area16N or LWM types):http://www.home.earthlink.net/~smgreenwood...stutilities.zipIf you still have unsatisfactory terrain anomalies, you may find that the default "water flattens" in FS9 are the problem, and this may require further detailed work either in FSTFlatten or SBuilder to "un-flatten" part of the default FS9 water flatten.SBuilder can do this by an "append" of the pertinent FS9 default FL955170.BGL file to create an "un-flatten" HP water polygon for the area, over which one could then place the desired new water flatten at a higher layer in the FS Scenery Library.The FS9 default HP955170.BGL water polygon file and HL955170.BGL textured vector shoreline file may need to be "appended" in SBuilder to correct the water shapes there as well.NOTE: BGLs for LTBW are in: [FS2004 install path]\Scenery\Asia\Scenery; default FS9 install path is C:\Program Files\Microsoft Games\Flight Simulator 9\...Some links which may be relevant to your learning process:Beginner's Guide to Scenery Design http://forums1.avsim.net/index.php?showtopic=79553SBuilder 2.05 for FS2004 (FS9)... not to be confused with SBuilderX 3.1 (SBX) for FSX:http://library.avsim.net/search.php?CatID=...;Go=Change+ViewIn order to fully install the latest version of SBuilder you need:http://www.ptsim.com/forum/topic.asp?TOPIC...ilder,downloadsThe "Unified Theory" of the SBuilder install: (...one of many excellent Tutorials at: http://www.scenery.org/tutorials.htm )http://mysite.verizon.net/tdgsr/downloads/...ng_sbuilder.zipSBuilder for FS9 (SB205) Support Forum(s) at PTSim:http://www.ptsim.com/forum/forum.asp?FORUM_ID=18SBuilder Support Forum(s) at FSDeveloper:http://www.fsdeveloper.com/forum/forumdisplay.php?f=33Scott Smart's Tutorial may be helpful for learning some concepts for use of SBuilder in this context:http://library.avsim.net/esearch.php?CatID...&DLID=83202Scott Gridley's Tutorial for calibrating Google Earth Maps as background images for use in SBuilder:http://www.fs-freeflow.com/forum2/index.php?topic=618.0Scott Gridley's Tutorials for SBuilder (compiled into a PDF file):http://fs-freeflow.com/files/SBuilderTutorials.zipJim Keir's LWMViewer Utility (can output BMP of FS9 scenery with world file for use as background image in SBuilder; see ReadMe"Saving BMP files"):http://www.jimkeir.co.uk/FlightSim/LWMViewer.htmlEditing a default airport flatten with SBuilder:http://www.fsdeveloper.com/forum/showthread.php?t=1657Removing vestigial flattens in coastal areas with SBuilder:http://www.fsdeveloper.com/forum/showthread.php?t=6792Manually Creating an Area16N Flatten Zone:http://www.flightsimworld.com/kb/idx.php/0...atten-Zone.htmlHope this helps get you started... Good Luck with your project; let us know how it works out for you! :( GaryGB

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Hello Gary,many thanks for your explanatory reply.. as i'm reading and reading, i'm understanding more and more on this.. i will concentrate more to get some better results.. thanks again, Tuna

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