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Ortophoto elevation
- Thread starter Tekica123
- Start date
Hello:
The Skopje airport CVX vector flatten polygon adjacent to the RWY 34 area can be modified / recompiled, with the local flatten segment then being kept closer to the RWY and Taxiway surface, allowing the underlying terrain mesh to NOT be flattened.
The terrain textures from the 'orthophoto' imagery will provide the airport background 'texture', so the CVX vector Airport Boundary (Background) Polygon need only be a flatten with no additional Exclude Autogen / MaskClassMap attribute.
Those textures will drape onto the underlying terrain shaped via terrain mesh and/or a CVX vector sloped flatten.
If you load:
[FSX install path]\Scenery\0602\scenery\dem0602.bgl
...and:
[FSX install path]\Scenery\0602\scenery\cvx5317.bgl
...in SDK TMFViewer, you will see elevation detail already available to be rendered via default FSX / P3D terrain mesh.
[EDITED]
FYI: You can preview the detail available via FreeMeshX terrain mesh BGLs which are newer than the FSX / P3D BGLs.
Rather than attempting to create your own custom CVX vector "sloped flatten" terrain BGL from contour data points and poly-lines, you instead can utilize a 'ready-to-use', free to download, SRTM elevation raster-derived, 1-Arc Second resolution (38.2 Meter / LOD-10 SDK Resample output) terrain mesh BGL for ex: Skopje here:
FreeMeshX
http://ninetwopro.com/freemeshx/
http://ninetwopro.com/freemeshx/bit-torrent-download-links/
Use u-Torrent as a peer-to-peer Torrent download application, to pick only the files you want for your local project Geographic coverage area from the big FreeMeshX "Global" torrent file.
It is not impossible that one may achieve 'slightly' more detail than the default or FreeMeshX FSX / P3D terrain mesh, as the small hills may be rendered via a custom CVX vector sloped flatten polygon output by MCX from a 3D model.
But even at 30 Meters between elevation data points from downloaded 1-Arc second (30 Meter) resolution SRTM or ASTER GDEM data, one would still only derive 10 or 11 data points along the axes of those hills on their North or South dimensions, so most of any further 'enhancement' would need to be done manually in ex: 3DSMAX.
[END_EDIT]
GaryGB
The Skopje airport CVX vector flatten polygon adjacent to the RWY 34 area can be modified / recompiled, with the local flatten segment then being kept closer to the RWY and Taxiway surface, allowing the underlying terrain mesh to NOT be flattened.
The terrain textures from the 'orthophoto' imagery will provide the airport background 'texture', so the CVX vector Airport Boundary (Background) Polygon need only be a flatten with no additional Exclude Autogen / MaskClassMap attribute.
Those textures will drape onto the underlying terrain shaped via terrain mesh and/or a CVX vector sloped flatten.
If you load:
[FSX install path]\Scenery\0602\scenery\dem0602.bgl
...and:
[FSX install path]\Scenery\0602\scenery\cvx5317.bgl
...in SDK TMFViewer, you will see elevation detail already available to be rendered via default FSX / P3D terrain mesh.
[EDITED]
FYI: You can preview the detail available via FreeMeshX terrain mesh BGLs which are newer than the FSX / P3D BGLs.
Rather than attempting to create your own custom CVX vector "sloped flatten" terrain BGL from contour data points and poly-lines, you instead can utilize a 'ready-to-use', free to download, SRTM elevation raster-derived, 1-Arc Second resolution (38.2 Meter / LOD-10 SDK Resample output) terrain mesh BGL for ex: Skopje here:
FreeMeshX
http://ninetwopro.com/freemeshx/
http://ninetwopro.com/freemeshx/bit-torrent-download-links/
Use u-Torrent as a peer-to-peer Torrent download application, to pick only the files you want for your local project Geographic coverage area from the big FreeMeshX "Global" torrent file.
It is not impossible that one may achieve 'slightly' more detail than the default or FreeMeshX FSX / P3D terrain mesh, as the small hills may be rendered via a custom CVX vector sloped flatten polygon output by MCX from a 3D model.
But even at 30 Meters between elevation data points from downloaded 1-Arc second (30 Meter) resolution SRTM or ASTER GDEM data, one would still only derive 10 or 11 data points along the axes of those hills on their North or South dimensions, so most of any further 'enhancement' would need to be done manually in ex: 3DSMAX.
[END_EDIT]
GaryGB
Last edited:
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- 994
- Country
Hey @GaryGB Thank you so much for that, I really appreciate.Im going to check the FreeMeshX now.
Look, I want the same, the default terrain to be flatten and the selected area to be like 3 meters in height, getting up slightly, not hard shape, that I think is only possible with 3DS Max, so I have never done thing like this and thats the reason I don't know how to do that.
Look, I want the same, the default terrain to be flatten and the selected area to be like 3 meters in height, getting up slightly, not hard shape, that I think is only possible with 3DS Max, so I have never done thing like this and thats the reason I don't know how to do that.
IIUC you have created and have available, (1) or more MDL-based 3D object to display the hills as scenery objects.
These may not require all of the same considerations as G-Polys, as they are intended to display grass textures rather than pavement.
But, they would need to be manually textured (...a lot of work).
Alternatively, one may "drape" or "project" intended textures onto 3D model Faces from above on the Z-axis
Sketchup can perform this task by default and/or with assistance of a plugin Ruby script, and IIUC, 3DSMAX can also do this.
HOWEVER:
Z-axis "drape" or "projection" of intended textures onto terrain mesh / sloped flattens is what FS normally does with land class textures.
AFAIK, since you now have (1) or more MDL-based 3D object to display hills as scenery objects, I recommend what I originally suggested:
1.) Import the non-textured 3D model(s) into MCX
2.) Geo-reference the center of the 3D model(s) to the intended placement location(s) in the target scenery Area
3.) Export from MCX as FSX Sloped Flatten CVX vector BGLs
4.) Use the "othophoto" to make a custom Photo-real imagery land class BGL mapped to the target Area of the sloped flattens
5.) Allow FS rendering engine to "drape" local custom Photo-real imagery or land class textures onto sloped flattens from above on Z-axis.
GaryGB
Last edited:
- Messages
- 994
- Country
I think that was missunderstand hah..
Im looking now for a terrain mesh, different than the this post about the airport elevation.Now Im looking for this,
I have DEM BGL file exported but with default terrain textures, so now how can I stick my ortophoto to the new DEM?
Is it possible just to resample the imagery with the default inf settings?
If yes, why? What makes the difference when I export the mesh with resample tool?
Im looking now for a terrain mesh, different than the this post about the airport elevation.Now Im looking for this,
I have DEM BGL file exported but with default terrain textures, so now how can I stick my ortophoto to the new DEM?
Is it possible just to resample the imagery with the default inf settings?
If yes, why? What makes the difference when I export the mesh with resample tool?
SDK Resample is used for making terrain mesh, custom Photo-real imagery land class, and certain other types of BGLs.
IMHO, it is not "possible just to resample the imagery with the default inf settings" as a *.INF must be created for each unique source data set.
When you state: "I have DEM BGL file exported", do you mean you used a DEM to make a sloped flatten BGL ...or a terrain mesh BGL ?
If you made a CVX sloped flatten BGL, it modifies the shape of any underlying terrain mesh, so you do not need to make new terrain mesh.
BTW: Set your terrain sliders at the full Right (max) position in FS GUI.
If you use your orthophoto to make a custom Photo-real imagery land class, it will automatically "drape" on top of your sloped flatten.
GaryGB