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Warning! This version of documentation is OUTDATED, as it describes an older SDK version! Please switch to the documentation for the latest SDK version.
Warning! This version of documentation describes an old SDK version which is no longer supported! Please upgrade to the latest SDK version.


The functionality described in this article is not available in the Community SDK edition.
You should upgrade to Engineering / Sim SDK edition to use it.

The Sandworm tool is used to generate georeferenced terrain of any form using the provided data sources. This tool helps to quickly re-create portions of the real world by projecting them onto a flat Landscape Terrain or Terrain Global that supports Curved mode and natively works with geo-coordinates. The maximum terrain size depends on the available memory and data density, but typically, it's enough to create a big city or country landscape.

Sandworm generates terrain based on geodata only. To generate a terrain using non-georeferenced data, use the Landscape Terrain object directly.

The list of Sandworm features currently includes the following:

  • Support for multiple georeferenced sources: raster (elevation, imagery, and masks) and vector (roads, buildings, etc.)
  • Advanced data filtering options: via attributes (vector sources), via indexed, color, and channel masks (raster sources)
  • Support for online TMS (Mapbox, OSM) and offline data sources
  • Mask-based generation of vegetation
  • Generation of additional details (sand, rocks, etc.) based on landcover data for more realistic landscape surfaces
  • Procedural generation of objects (roads, powerlines, buildings, landmarks, etc.)
  • Advanced control and fine-tuning of placement parameters
  • Support for most of the widely used Coordinate Reference Systems (CRS) for input as well as output projections
  • Ability to combine sources with different projection types within a single project
  • Export to Landscape Terrain and Terrain Global
  • Coherent and user-friendly interface

Sandworm generates a terrain using height map (elevation) and albedo (imagery) data provided. You can use the following types of data sources:

  • Offline — locally stored tilesets: raster (elevation, imagery, and masks) and vector data sources from your local storage device
  • Online — Tile Map Services (TMS): you can connect to both open services (such as OpenStreetMap or various state/municipal databases) or private tile servers created and supported by users.

Georeferenced imagery and elevation data are processed using GDAL — Geospatial Data Abstraction Library. It supports various raster formats with different map projections for input data. It is also possible to combine different projection types and data sources to generate a terrain.

Sandworm uses GDAL for data processing, therefore, supported formats include those marked Built-in by default in the following lists:

These data sources usually contain a lot of information that can be filtered out.

For example, by using filters you can:

  • Generate grass or trees for areas marked with specific colors of the landcover texture.
  • Generate only highways ignoring small roads using a road type Attribute in a vector data file.
  • Generate buildings of a particular type only (e.g., apartments, garages, single- or multi-story buildings, depending on the data stored in the vector data source).

Sandworm supports multiple data layers aligned by geo or raster coordinates: you can easily create high-resolution insets by adding a high-detailed landscape area over a low-detailed one. This can be useful for flight simulators, where a high level of detail is required only for areas around airports. The quality of generated terrain is determined by the density of the data sources used.

High-detailed inset over a low-detailed area

See Also#

Last update: 2022-10-10
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