pyqt5 opengl demo

import sys
from PyQt5 import QtCore, QtGui, QtOpenGL


class MyOpenGLWindow(QtGui.QOpenGLWindow):
    def __init__(self, **kwargs):
        QtGui.QOpenGLWindow.__init__(self)
        self.setTitle("MyQOpenGLWindow")
        self.setWidth(800)
        self.setHeight(800)

    def paintGL(self):
        for i in range(0, 5):
            for j in range(0, 1000):
                version = QtGui.QOpenGLVersionProfile()
                version.setVersion(i, j)
                try:
                    if self.context().versionFunctions(version) is not None:
                        print('{}.{} is ok'.format(i, j))
                except Exception as e:
                    print('{}.{} failed: {}'.format(i, j, e))
                    # def initializeGL(self):
    #     self.gl = self.context().versionFunctions()
    #     self.gl.glClearColor(0., 0., 0., 1.)
    #
    # def paintGL(self):
    #     self.gl.glClear(self.gl.GL_COLOR_BUFFER_BIT)


app = QtGui.QGuiApplication(sys.argv)
myWindow = MyOpenGLWindow()
myWindow.show()

app.exec_();

钟表demo：

from OpenGL.GL import *
from OpenGL.GLU import *
from OpenGL.GLUT import *
import math
import time

h = 0
m = 0
s = 0


def Draw():
    PI = 3.1415926
    R = 0.5
    TR = R - 0.05
    glClear(GL_COLOR_BUFFER_BIT)
    glLineWidth(5)
    glBegin(GL_LINE_LOOP)
    for i in range(100):
        glVertex2f(R * math.cos(2 * PI / 100 * i), R * math.sin(2 * PI / 100 * i))
    glEnd()
    glLineWidth(2)
    for i in range(100):
        glBegin(GL_LINES)
        glVertex2f(TR * math.sin(2 * PI / 12 * i), TR * math.cos(2 * PI / 12 * i))
        glVertex2f(R * math.sin(2 * PI / 12 * i), R * math.cos(2 * PI / 12 * i))
        glEnd()
    glLineWidth(1)

    h_Length = 0.2
    m_Length = 0.3
    s_Length = 0.4
    count = 60.0
    s_Angle = s / count
    count *= 60
    m_Angle = (m * 60 + s) / count
    count *= 12
    h_Angle = (h * 60 * 60 + m * 60 + s) / count
    glLineWidth(1)
    glBegin(GL_LINES)
    glVertex2f(0.0, 0.0)
    glVertex2f(s_Length * math.sin(2 * PI * s_Angle), s_Length * math.cos(2 * PI * s_Angle))
    glEnd()
    glLineWidth(5)
    glBegin(GL_LINES)
    glVertex2f(0.0, 0.0)
    glVertex2f(h_Length * math.sin(2 * PI * h_Angle), h_Length * math.cos(2 * PI * h_Angle))
    glEnd()
    glLineWidth(3)
    glBegin(GL_LINES)
    glVertex2f(0.0, 0.0)
    glVertex2f(m_Length * math.sin(2 * PI * m_Angle), m_Length * math.cos(2 * PI * m_Angle))
    glEnd()
    glLineWidth(1)
    glBegin(GL_POLYGON)
    for i in range(100):
        glVertex2f(0.03 * math.cos(2 * PI / 100 * i), 0.03 * math.sin(2 * PI / 100 * i));
    glEnd()
    glFlush()


def Update():
    global h, m, s
    t = time.localtime(time.time())
    h = int(time.strftime('%H', t))
    m = int(time.strftime('%M', t))
    s = int(time.strftime('%S', t))
    glutPostRedisplay()


glutInit()
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGBA)
glutInitWindowSize(400, 400)
glutCreateWindow("My clock")
glutDisplayFunc(Draw)
glutIdleFunc(Update)
glutMainLoop()