Hello. For some reason when I close the OpenGL canvas(“screen”), my python IDLE crashes. This is the code:
import sys
import OpenGL
from OpenGL.GL import *
from OpenGL.GLU import *
from OpenGL.GLUT import *
Angle = 0
Incr = 1
def display():
global Angle
global Incr
glClear(GL_COLOR_BUFFER_BIT)
glLoadIdentity()
glRotated(Angle,0,1,0)
glBegin(GL_TRIANGLES)
glColor3f(1,0,0)
glVertex3f(-1,0,0)
glColor3f(0,1,0)
glVertex3f(1,0,0)
glColor3f(0,0,1)
glVertex3f(0,1,0)
glEnd()
Angle = Angle + Incr
glFlush()
glutSwapBuffers()
def keyHandler(Key, MouseX, MouseY):
global Incr
if Key == ‘f’ or Key == ‘F’:
print “Speeding Up”
Incr = Incr + 1
elif Key == ‘s’ or Key == ‘S’:
if Incr == 0:
print “Stopped”
else:
print “Slowing Down”
Incr = Incr - 1
elif Key == ‘q’ or Key == ‘Q’:
print “Bye”
sys.exit()
else:
print "Invalid Key ",Key
def timer(Dummy):
glutPostRedisplay()
glutTimerFunc(30,timer,0)
glutInit(sys.argv)
glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB)
glutCreateWindow(“PyOpenGL Demo”)
glutDisplayFunc(display)
glutKeyboardFunc(keyHandler)
glutTimerFunc(0,timer,0)
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
glFrustum(-1,1,-1,1,1,3)
glTranslated(0,0,-2)
glMatrixMode(GL_MODELVIEW)
glutMainLoop()