[ Python ] OpenGL

Posted 2020-11-06 coder211

pyOpenGL Installation

Package             Version
------------------- -------
numpy               1.14.2 
PyOpenGL            3.1.0  
PyOpenGL-accelerate 3.1.0  

demo1

 1 # -*- coding: utf-8 -*-
 2 from OpenGL.GL import *
 3 from OpenGL.GLU import *
 4 from OpenGL.GLUT import *
 5 
 6 
 7 def init():
 8     glClearColor(1, 1, 1, 1)
 9     gluOrtho2D(-1, 1, -1, 1)
10 
11 
12 def triangle():
13     glClear(GL_COLOR_BUFFER_BIT)
14     glColor3f(1, 0, 0)
15     glBegin(GL_TRIANGLES)
16 
17     glColor3f(1, 0, 0)
18     glVertex2f(-1, -1)
19 
20     glColor3f(0, 1, 0)
21     glVertex2f(1, -1)
22 
23     glColor3f(0, 0, 1)
24     glVertex2f(0, 1)
25 
26     glEnd()
27     glFlush()
28 
29 
30 def main():
31     glutInit(sys.argv)
32     glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB)
33     glutInitWindowSize(800, 600)
34     glutInitWindowPosition(50, 50)
35     glutCreateWindow("Triangle")
36     glutDisplayFunc(triangle)
37     init()
38     glutMainLoop()
39 
40 
41 if __name__ == ‘__main__‘:
42     main()

demo2

# -*- coding: utf-8 -*-
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(0.01, 3, 2, 1)  # (角度,x,y,z)
    glutWireTeapot(0.5)
    glutWireCube(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)
wnd = glutCreateWindow(b"first")
# 调用函数绘制图像
glutDisplayFunc(drawFunc)
glutIdleFunc(drawFunc)
# 主循环
glutMainLoop()