Developer Setup - Windows


Below are the steps that should produce a working Semblage environment from scratch. This guide will walk developers through that process, and will also explain the export process to get a Semblage package ready for distribution. These steps should be similar (but not exactly the same) on Windows, Mac OS and Linux. Please contribute to this guide if you develop primarily on Windows and have suggestions on how to make this guide better.


  • Python 3.8+
  • Visual Studio 2017 or 2019 (2019 is preferred)

Steps For Working Dev Environment

  • Download Godot 3.4.5 or newer 3.4.x version for Windows.
  • Clone Semblage repo with git clone --recurse-submodules
  • Run Godot and open the Semblage project file.
  • Go to the AssetLib tab.
  • Search for "pythonscript".
  • Click on the PythonScript plugin available from touilleMan.
  • Click the Download button in the dialog that comes up.
  • One the download has completed, click the Install... button.
  • Leave everything at the default in the Package Installer dialog and click the Install button.
  • You should eventually get a message that the package installed successfully and you can click the OK button.
  • Search the AssetLib for gut.
  • Install the Gut - Godot Unit Testing package from bitwes.
  • Open a command line and make sure you are in the root Semblage directory.
  • Run .\addons\pythonscript\windows-64\python.exe -m ensurepip
  • Run .\addons\pythonscript\windows-64\python.exe -m pip install --pre git+
  • Restart Godot and reopen the Semblage project.
  • Semblage should now run and work properly, including exporting the project for distribution.


The cross-platform export does not currently work for the Windows version of Semblage due to the Python plugin. This process should be done on a Windows computer, and has been tested on Windows 10. Please note that the first time that you attempt to export the project the export dialog will prompt you to install the templates. Follow the process in the Godot documentation to install the templates.

  • From within Godot click Project -> Export...
  • In the dialog that comes up click Windows Desktop (Runnable) under Presets
  • Click the Export Project button
  • Set an empty directory named Semblage to export the files to in Path:
  • Make sure that the File: field is set to Semblage.exe
  • Uncheck Export With Debug if it is checked
  • Click the Save button

The Windows export process is partly managed by a custom export plugin, and this can take awhile to run. It may make it seem like the export dialog has stalled, but it has not. Once the Save a File dialog closes you can also close the Export dialog and inspect the directory holding the new export.

Due to the nature of how the Python plugin works on Windows, a copy of the Semblage repo's main structure must be made in the export directory. This carries with it some files and directories that are not needed and can be deleted. This manual clean up step helps declutter the zip file for end users. Below is a list of those files/directories that can and should be removed before uploading.

  • .git
  • .github
  • pycache
  • .gitignore
  • .gitmodules
  • Semblage.pck

Testing an Exported Package

To test an exported package, double click Semblage.exe. The Semblage GUI should launch. Next, right click in the Semblage 3D view and add a New Component. All of the default settings are fine. Then right click again and add a box (under the 3D group). The default settings for this are fine too. If the box is rendered your release is valid, and can be packaged.

Creating the Release Archive

Add the Semblage directory to an archive named This archive can then be uploaded to a release.