#Flightgear scenery map install
#Flightgear scenery map update
#Flightgear scenery map code
#Flightgear scenery map download

(a) - Using these settings there was a noticeable reduction in apparent heightmap resolution with a 30m DEM, probably because the resolution of the lowest LoD level was ~40m, compared with 20m for an 7 LoD level mesh. aircraft=ufo -timeofday=morning -disable-real-weather-fetch -disable-ai-traffic -disable-random-objects -disable-random-vegetation -altitude=15000 -prop:/scenery/use-vpb=true -disable-sound -disable-ai-models -prop:/sim/rendering/texture-cache/cache-enabled=false -lat=46.021023 -lon=7.728291 -altitude=12662.75 -heading=226.0Įxperimental results varying LoD Level and visibility distance ratios The following commandline options were used to place the ufo just to the NE of the Matterhorn, facing SW. The system appeared I/O limited as GPU utilization was around 30% and on 2GB of VRAM was used.

FlightGear was then run on a desktop with an NVidia GeForce GTX 1660 with 6GB of VRAM. WS30 terrain was generated for a 2x2 degree section of the European Alps bounded by (7E, 45N), and (8E, 47N), with settings as listed below. To attempt to understand the relationship, a test was performed. The two main settings (the number of LoD levels, and the ratio of the LoD radius and maximum visible range), have a huge impact on the number of vertices, how the terrain looks, LoD 'popping', and framerate. Virtual Planet Builder provides a variety of settings that have a big impact on the eventual terrain mesh. Unlike WS2.0 which has a fixed terrain mesh, VPB uses different terrain meshes with different level of detail (LoD) depending on the distance of the viewer from the particular piece of terrain.ĭiagram showing how the Virtual Planet Builder filenames are built for each LoD level.

#Flightgear scenery map download

To download you need a free account from here) SRTM with 30m resolution is available here: ( Directory, Interactive search by selecting areas or points: example. SRTM with 90m resolution is available here:

The most commonly used Digital Elevation Model used is SRTM. Gdal_rasterize -l CORINE_Modified_WGS84 -a Landclass -ts 35000.0 33300.0 -a_nodata 48.0 -te 3.0 51.0 8.0 54.0 -ot Byte -of GTiff -co COMPRESS=NONE -co BIGTIFF=IF_NEEDED /home/stuart/FlightGear/VPB/data/Modified/CORINE_Modified_WGS84.gpkg /home/stuart/FlightGear/VPB/data/10m/Netherlands2.tif Use a rasterize command to create a raster:.An example is below, and some mappings are available here: For CORINE vector data this is the c18 field.

#Flightgear scenery map update

Open the field calculator the update the new field (c_index) using a calculation that maps from the landclass fields in your data.

Create a new field (c_index) with type int.

Map the vector polygons to have the correct landclass.

Ensure you project and layer are in the same projection. If you wish to create higher resolution scenery, you may need to convert from vector data. ESRI), you will need to use your GIS (Grass, QGIS) to convert them such that the raster uses the correct landclass indexes. If you have another landcover source (e.g. Note that the mapping from landcover to materials is performed in Materials/base/landclass-mapping.xml, and currently only maps CORINE raster landclasses. Ĭhoose RASTER data, which will download a geo-referenced TIF image. Note that GDAL and PROJ do not use cmake, so it builds in the source directory as follows:Ĭmake -DOSG_DIR=/path/to/OSG/install /path/to/VPB/srcįor CORINE data covering Europe, try here: įor US National Landcover Database (NLCD) try here: ĮSRI (akak Sentinel-2) covers the entire world but with fewer distinct landclasses.

#Flightgear scenery map install

which requires the sqlite3.11 or above development package (on linux - 'sudo apt-get install libsqlite3-dev')

GDAL ( ), Note that this needs to 2.4.X.

('sudo apt-get install libnvtt-dev' - oddly VPB builds without it but then checks for the shared library at runtime.) If you've got an existing FlightGear build, there are some additional dependencies: There is now a VPB docker container for Linux: and

#Flightgear scenery map code

The VPB project and code can be found here: