moderngl_window

A cross platform helper library for ModernGL making window creation and resource loading simple.

• moderngl_window Documentation
• moderngl_window on PyPI
• moderngl_window on Github
• ModernGL
• ModernGL Discord Server

Please report bugs or post questions/feedback on github.

Features

• Cross platform support. Tested on Windows 10, Linux and Mac OS X. This can save users a lot of time and is often more difficult than most people imagine it to be.
• Easily create a window for ModernGL using Pyglet, PySide2, GLFW, SDL2 or PyQt5 supporing basic keyboard and mouse controls. These events are unified into a single system so we can switch to any window at any point in time.
• Load 2D textures and texture arrays
• Load shaders as single or multiple glsl files
• Load objects/scenes from wavefront/obj, GLTF 2.0 or STL
• Resource finder system supporting multiple resource directories
• A highly pluggable library supporting custom loaders, resource finders and windows.
• Type hints everywhere making code completion and linting a breeze

We are not trying to force the user into using every aspect of this library. If you have an exiting project and just need texture loading you will be able to do this without unnecessary hurdles as long as you provide us your moderngl.Context.

Install

pip install moderngl-window

Supported Platforms

• Windows
• Linux
• Mac OS X

Sample Usage

Simple example opening a window clearing every frame using red (color).

import moderngl_window as mglw

class Test(mglw.WindowConfig):
    gl_version = (3, 3)

    def render(self, time, frametime):
        self.ctx.clear(1.0, 0.0, 0.0, 0.0)

mglw.run_window_config(Test)

WindowConfig classes are the simplest way to get started without knowing a lot about this library. For more advanced usage see documenation or examples.

Setup from source

We assume the user knows how to handle vitrualenvs.

# Install the package in editable mode
$ pip install -e .

# Set up and dev requirements
pip install -r requirements.txt
pip install -r tests/requirements.txt

Running Tests

Tests are set up with tox running pytest with coverage and flake8.

pip install -r tests/requirements.txt
tox -e py35
tox -e py36
tox -e py37
tox -e pep8

Building Docs

python setup.py build_sphinx

Contributing

Contributions are welcome regardless of experience level. Don't hesitate submitting issues, opening partial or completed pull requests.

Plugins

We are interested in contributions providing new loaders, windows etc. For these to be included in this library we require them to work cross platforms (win10/linux/osx) and be fairly easy to set up.

If it requires more than manually downloading a precompiled dll (like SDL2, GLEW etc.) it would most likely not be included, but you are welcome to present your case if you still think it should be included.

If you create your own repo/package containing plugins for this library, please make an issue and we'll link back to it. Be sure to include what platforms are suppored, install instructions, how you configure it in moderngl_window and of course a clear and concise description of what exactly your package provides.

Attributions

We can't build everything from scratch. We rely on certain packages and resources to make this project possible.

Windows

• Pyglet (https://github.com/pyglet/pyglet)
• pyGLFW (https://github.com/FlorianRhiem/pyGLFW)
• PySDL2 (https://github.com/marcusva/py-sdl2)
• PySide2 (https://wiki.qt.io/Qt_for_Python)
• PyQt5 (https://www.riverbankcomputing.com/software/pyqt/intro)

Loaders

• Pillow (https://python-pillow.org/)
• pywavefront (https://github.com/pywavefront/PyWavefront)
• trimesh (https://github.com/mikedh/trimesh)

Testing & Utility

• Pyrr (https://github.com/adamlwgriffiths/Pyrr)
• numpy (https://github.com/numpy/numpy)
• pytest (https://docs.pytest.org/en/latest/)
• flake8 (https://gitlab.com/pycqa/flake8)
• coverage (https://github.com/nedbat/coveragepy)
• tox (https://tox.readthedocs.io/en/latest/)

Resources

• NASA 3D Resources (https://github.com/nasa/NASA-3D-Resources)
• glTF Sample Models (https://github.com/KhronosGroup/glTF-Sample-Models)

Some History

The majority of the code in this library comes from demosys-py (somewhat modified). Because demosys-py is a framework we decided to split out a lot useful functionality into this library. Frameworks are a lot less appealing to users and it would be a shame to not make this more available to the ModernGL user base.