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import sys, time, math
import pygame
from OpenGL.GL import *
from OpenGL.GLU import *
FRAME_TIME = 0.02
colors = []
vertexes = []
def setup_scene(screen):
glViewport(0, 0, screen.get_width(), screen.get_height())
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
gluOrtho2D(-4, 4, -3, 3)
glEnableClientState(GL_COLOR_ARRAY)
glEnableClientState(GL_VERTEX_ARRAY)
radius = 2.0
for i in range(10):
angle1 = math.pi* i/ 5.0
angle2 = math.pi* (i+ 1)/ 5.0
vertexes.append([radius* math.cos(angle1), radius* math.sin(angle1), 0.0])
vertexes.append([radius* math.cos(angle2), radius* math.sin(angle2), 0.0])
vertexes.append([0.0, 0.0, 0.0])
colors.append([1.0, 0.0, 0.0, 1.0])
colors.append([1.0, 0.0, 0.0, 1.0])
colors.append([0.5, 0.0, 0.0, 1.0])
print len(vertexes), vertexes
print len(colors), colors
glVertexPointerf(vertexes)
glColorPointerf(colors)
def render_scene():
glClear(GL_COLOR_BUFFER_BIT)
glMatrixMode(GL_MODELVIEW)
glLoadIdentity()
t = time.time()/ 4
subtime = t- math.floor(t)
glRotatef(subtime* 360, 0, 0, 1)
glDrawArrays(GL_TRIANGLES, 0, 30)
if __name__ == "__main__":
pygame.init()
screen = pygame.display.set_mode([800, 600], pygame.OPENGL | pygame.DOUBLEBUF)
pygame.display.set_caption('Python OpenGL test', 'pygame')
setup_scene(screen)
while True:
starttime = time.time()
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
sys.exit()
render_scene()
pygame.display.flip()
timeleft = FRAME_TIME- (time.time()- starttime)
if (timeleft > 0):
time.sleep(timeleft)
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