Beginning of the LASER/F project: 2002 

Programming language: Free Pascal Object

Exploitation system: Windows 10 (64 bits)

IDE: Lazarus

3D Graphics Library: GLScene 

Recommended equipment: multicore PC, >= 8 GB RAM

Executable size: < 10 MB

Computation: the most time consuming procedures have been parallelized during simulation (use all of available cores and logical processors)

Graphic card: support of 3D display

Interface: available with or without graphic interface (can be run in online and offline mode)

Results: maps in 3D, linear graphics in 2D, spreadsheet, exportation of results as external files 

Atmospheric forcing: forcing variables are provided in user specified *.csv text files, and in a specific format

Scene dimensions: typically 1000 m * 1000 m

Urban geometry: support LOD2 and LOD3. Information is given  in user specified *.geo files (a specific LASER/F file format for geometry)

Simulation time-step: user defined (can be as large as a quarter of hour)

Simulation period: from several consecutive days to several months according to objectives, calculation time and scene dimensions

Atmosphere: implicit atmosphere (no CFD)