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An opengl frame for pyopengl-tkinter based on ctype

Project description


Tkinter - OpenGL Frame using ctypes

An opengl frame for pyopengl-tkinter based on ctypes (no togl compilation)

Collected together by Jon Wright, Jan 2018.

Basic Example

This example creates a window containing an OpenGLFrame filling the entire window. We configure it to animate (constantly redraw) clearing the screen using a green color. A simple framerate counter is included. The context information is printed to the terminal.

import time
import tkinter
from OpenGL import GL
from pyopengltk import OpenGLFrame

class AppOgl(OpenGLFrame):

    def initgl(self):
        """Initalize gl states when the frame is created"""
        GL.glViewport(0, 0, self.width, self.height)
        GL.glClearColor(0.0, 1.0, 0.0, 0.0)    
        self.start = time.time()
        self.nframes = 0

    def redraw(self):
        """Render a single frame"""
        tm = time.time() - self.start
        self.nframes += 1
        print("fps",self.nframes / tm, end="\r" )

if __name__ == '__main__':
    root = tkinter.Tk()
    app = AppOgl(root, width=320, height=200)
    app.pack(fill=tkinter.BOTH, expand=tkinter.YES)
    app.animate = 1
    app.after(100, app.printContext)

The repository on Github also contains more examples.


From PyPI:

pip install pyopengltk

From source:

git clone
cd pyopengltk
pip install .


Based on the work of others.

C + Tcl/Tk example:

Python + Tkinter (no pyopengl) example:


  • Large regions of code copied from pyopengl/Tk/

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