一、安装和初步使用
1、安装PyOpenGL
已经安装python的系统会自动安装pip，所以只需要一句pip命令就可以安装opengl了，命令如下：
代码语言：javascript复制pip install PyOpenGL PyOpenGL_accelerate
2.安装报错
在本地址找合适的版本下载：https://www.lfd.uci.edu/~gohlke/pythonlibs/
安装参考：https://cloud.tencent.com/developer/article/1186086
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暂未发现错误，以下未验证：
然后在python 中import相关功能，运行后会出现错误
OpenGL.error.NullFunctionError: Attempt to call an undefined function glutInit, check for bool(glutInit) before calling
或者：
SyntaxError: multiple statements found while compiling a single statement
可能是缺少相关dll文件，可以在这里下载到 http://pan.baidu.com/s/1dFhC8G5
拷到你建立的工程目录下，就是你写的程序的目录下就可以了。
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3.一个demo
运行下面的程序
代码语言：javascript复制# -*- coding:utf-8 -*-
# Author:WYC
from OpenGL.GL import *
from OpenGL.GLU import *
from OpenGL.GLUT import *
def drawFunc():
#清楚之前画面
glClear(GL_COLOR_BUFFER_BIT)
glRotatef(0.1, 0,5,0)
#(角度,x,y,z)
glutWireTeapot(0.5)
#刷新显示
glFlush()
#使用glut初始化OpenGL
glutInit()
#显示模式:GLUT_SINGLE无缓冲直接显示|GLUT_RGBA采用RGB(A非alpha)
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGBA)
#窗口位置及大小-生成
glutInitWindowPosition(0,0)
glutInitWindowSize(400,400)
glutCreateWindow(b"first")
#调用函数绘制图像
glutDisplayFunc(drawFunc)
glutIdleFunc(drawFunc)
#主循环
glutMainLoop()
就应该能够显示茶壶模型了
二、简单使用例子
1.点线抛物线
代码语言：javascript复制from OpenGL.GL import *
from OpenGL.GLU import *
from OpenGL.GLUT import *
from numpy import *
import sys
def init():
glClearColor(1.0,1.0,1.0,1.0)
gluOrtho2D(-5.0,5.0,-5.0,5.0)
def plotfunc():
glClear(GL_COLOR_BUFFER_BIT)
glColor3f(1.0,0.2,0.6)
glPointSize(3.0)
glBegin(GL_POINTS)
for x in arange(-5.0,5.0,0.1):#from -5.0 to 5.0 plus 0.1 every time
y=x*x
glVertex2f(x,y)
glEnd()
glFlush()
def main():
glutInit(sys.argv)
glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB)
glutInitWindowPosition(50,100)
glutInitWindowSize(400,400)
glutCreateWindow("Function Plotter")
glutDisplayFunc(plotfunc)
init()
glutMainLoop()
main()
2.转动时钟
代码语言：javascript复制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() 
参考文档：
1.python opengl显示三维模型小程序：https://blog.csdn.net/renjiangui/article/details/76146160
2.初试PyOpenGL一 (Python OpenGL)：https://www.cnblogs.com/zhouxin/p/3526402.html
3.Python 之 OpenGL程序环境：https://blog.csdn.net/sssogs/article/details/8566169
