Manual Compilation via SCons

Using SCons you can re-build the Unigine engine and its components (standalone tools, plugins for 3D editors) as well as binary executable of a custom application. It reads the default compilation settings stored in SConstruct and SConscript files which are provided in the Unigine SDK.

You should properly set the development environment to build with SCons.

To build the development version of the Unigine engine, its tools or a custom application (the same bitness as the native platform) via SCons, perform the following steps:

1. Specify the SCONSFLAGS environment variable with -Q and -u options to avoid typing them by hand every time:
   • -Q to suppress SCons status messages (except commands that are executed to rebuild files). This is optional.
   • -u to search up the folder structure until an SConstruct file is found and build components at or below the current folder.
     Notice

     If this option isn't specified, components won't be built.
2. For Windows OS add <UnigineSDK>/externs/bin path to PATH environment variable to use Unigine batch scripts for more handy SCons call
3. In the command prompt, go to the target directory which contains a SConscript file (depending on what you are going to compile).
4. Type sconsand pressENTER to start building. By default cross-compilation is disabled and the compiled application and tools have the native bitness. If necessary, you can set your custom compilation options. For example:
   Shell commands

   C:\Windows\system32>c:
   
   C:\Windows\system32>cd c:\UnigineSDK\source\app\main
   
   C:\UnigineSDK\source\app\main>scons

   To build the release version of the Unigine engine, tools or an application for a native platform (here, Windows), you should type scons debug=0. For example:
   Shell commands

   C:\UnigineSDK\source\app\main>scons debug=0

Cross-Compilation with SCons

C:\UnigineSDK\source\app\main>scons_x86 double_precison=1

username@pc-name$ cd /home/username/UnigineSDK/source/app/main/
username@pc-name$ scons debug=0 cross=x86

mac-name:~ username$ cd ~/home/username/UnigineSDK/source/app/main/
mac-name:main username$ scons debug=0 cross=x86

When building with SCons, the available options are the following:

• cross BITS - bitness of the target platform. Possible values are:
  • default - version with the same bitness as the platform that SCons is currently run on. This is a default option.
  • x86 - 32-bit version
  • x64 - 64-bit version
• debug - generate detailed debugging information or not. Possible values are: 1 (by default) to build the development version, 0 to build the release version.
• half_texcoords - build with half float texture coordinates. Possible values are: 1 (by default), 0.
• double_precision - build with double precision coordinates (for large coordinates support). Possible values are: 1, 0 (by default).
• compiler COMPILER - compiler to be used.
  Notice

  It is not recommended to override the default settings.
  Possible values are:
  • default - the native compiler for the chosen platform. This is the default option.
  • gcc - GCC (the GNU Compiler Collection)
  • msvs - MS Visual Studio compiler
  • clang - Clang compiler
• jobs JOBS - the number of parallel building jobs to be run. Possible values are:0, 1, 2, 3, 4, 6, 8, 16. The default is 0.
• batch - enable batch build mode for MS Visual Studio to skip all prompts for user input. Possible values are: 1 (by default), 0.
• simd SIMD - perform parallel compilation using theSIMD operations. Possible values are:
  • default - use Streaming SIMD Extensions 2 technology (Intel SIMD). This is the default value.
  • none - do not use SIMD
  • sse - use Streaming SIMD Extensions technology
  • sse2 - use Streaming SIMD Extensions 2 technology (Intel SIMD)
  • avx - use AVX

Renderer Options

Sound Options

Computing Options

Other Options

Protection Options