pip install moderngl
- ModernGL on Github
- ModernGL on PyPI
- ModernGL Discord Server
- moderngl-window (Window creation, resource loading, ..)
NOTE: From moderngl 5.6 context creation is delegated to the glcontext package. This makes us able to expand and improve context creation without releasing new versions of moderngl. It also makes it possible for users to customize their own context creation and the bar for contributing should be lower. New backends can be created using ctypes or C++.
- GPU accelerated high quality graphics
- Rendering modern OpenGL scenes with less headache
- Simpler and faster than PyOpenGL
- Can render without a window
- 100% Pythonic
>>> import moderngl >>> ctx = moderngl.create_standalone_context() >>> buf = ctx.buffer(b'Hello World!') # allocated on the GPU >>> buf.read() b'Hello World!'
For complete examples please visit the Examples.
Easy to use with Pillow and Numpy
>>> img = Image.open('texture.jpg') >>> ctx.texture(img.size, 3, img.tobytes()) <Texture: 1>
>>> ctx.buffer(np.array([0.0, 0.0, 1.0, 1.0], dtype='f4')) <Buffer: 1>
Compared to PyOpenGL
With PyOpenGL, using the original OpenGL API, you have to write three lines to achieve a simple task like binding a VBO:
vbo1 = glGenBuffers(1) GL.glBindBuffer(GL_ARRAY_BUFFER, vbo1) GL.glBufferData(GL_ARRAY_BUFFER, b'Hello World!', GL_STATIC_DRAW) vbo2 = glGenBuffers(1) GL.glBindBuffer(GL_ARRAY_BUFFER, vbo2) GL.glBufferData(GL_ARRAY_BUFFER, b'\x00' * 1024, GL_DYNAMIC_DRAW)
With ModernGL you need just one simple line per VBO to achieve the same results:
vbo1 = ctx.buffer(b'Hello World!') vbo2 = ctx.buffer(reserve=1024, dynamic=True)
python setup.py build_ext --inplace
Is ModernGL faster than PyOpenGL?
In some cases yes, the core functions of ModernGL are written in C++, OpenGL functions are called in quick succession so these calls together count as a single python function call.
What version of OpenGL is used?
Most of the calls only require OpenGL 3.3 but Subroutines and Compute Shaders require OpenGL 4.0 and OpenGL 4.3
Is my old PC supported?
OpenGL 3.3 came out in February 2010. With up to date drivers you will be able to use the most of the ModernGL functions, even on integrated graphics cards. (No, Compute Shaders won't work)
Where can I use ModernGL?
Anywhere where OpenGL is supported. ModernGL is capable of rendering using a standalone_context as well. Rendering to a window only requires a valid OpenGL context.
Can ModernGL create a Window?
NO, but we provide a utility library moderngl-window making window creation and resource loading very simple.
Limitations using ModernGL over PyOpenGL?
Installing from source
Installing on Ubuntu from source
apt-get install python3-dev libgl1-mesa-dev libx11-dev python3 setup.py install
Building the sphinx documentation
pip install -r docs/requirements.txt python setup.py build_sphinx
pip install -r tests/requirements.txt pytest tests
Some of the tests may be skipped when the supported OpenGL version is below the requirements of the given test.
apt-get install xvfb alias xpy='xvfb-run -s "-screen 0 1x1x24" python3' xpy -m moderngl
- Szabolcs Dombi
- Tomi Aarnio
- Joshua Reibert
- Einar Forselv
- Jonathan Hartley
and many others
Contributions are welcome. (Please add yourself to the list)