Example Program
# teapots.py
# This program demonstrates lots of material properties.
# A single light source illuminates the objects.
import sys
import time
try:
from OpenGL.GLUT import *
from OpenGL.GL import *
from OpenGL.GLU import *
except:
print '''
ERROR: PyOpenGL not installed properly.
'''
sys.exit()
# Initialize depth buffer, projection matrix, light source, and lighting
# model. Do not specify a material property here.
def init():
ambient = [0.0, 0.0, 0.0, 1.0]
diffuse = [1.0, 1.0, 1.0, 1.0]
specular = [1.0, 1.0, 1.0, 1.0]
position = [0.0, 3.0, 3.0, 0.0]
lmodel_ambient = [0.2, 0.2, 0.2, 1.0]
local_view = [0.0]
glLightfv(GL_LIGHT0, GL_AMBIENT, ambient)
glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse)
glLightfv(GL_LIGHT0, GL_POSITION, position)
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient)
glLightModelfv(GL_LIGHT_MODEL_LOCAL_VIEWER, local_view)
glFrontFace(GL_CW)
glEnable(GL_LIGHTING)
glEnable(GL_LIGHT0)
glEnable(GL_AUTO_NORMAL)
glEnable(GL_NORMALIZE)
glEnable(GL_DEPTH_TEST)
# be efficient--make teapot display list
global teapotList
teapotList = glGenLists(1)
glNewList (teapotList, GL_COMPILE)
glutSolidTeapot(1.0)
glEndList ()
# Move object into position. Use 3rd through 12th
# parameters to specify the material property. Draw a teapot.
def renderTeapot(x, y, ambr, ambg, ambb, difr, difg,
difb, specr, specg, specb, shine):
mat = [0, 0, 0, 0]
glPushMatrix()
glTranslatef(x, y, 0.0)
mat[0] = ambr; mat[1] = ambg; mat[2] = ambb; mat[3] = 1.0
glMaterialfv(GL_FRONT, GL_AMBIENT, mat)
mat[0] = difr; mat[1] = difg; mat[2] = difb
glMaterialfv(GL_FRONT, GL_DIFFUSE, mat)
mat[0] = specr; mat[1] = specg; mat[2] = specb
glMaterialfv(GL_FRONT, GL_SPECULAR, mat)
glMaterialf(GL_FRONT, GL_SHININESS, shine * 128.0)
glCallList(teapotList)
glPopMatrix()
# First column: emerald, jade, obsidian, pearl, ruby, turquoise
# 2nd column: brass, bronze, chrome, copper, gold, silver
# 3rd column: black, cyan, green, red, white, yellow plastic
# 4th column: black, cyan, green, red, white, yellow rubber
def display():
start = time.clock()
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
renderTeapot(2.0, 17.0, 0.0215, 0.1745, 0.0215,
0.07568, 0.61424, 0.07568, 0.633, 0.727811, 0.633, 0.6)
renderTeapot(2.0, 14.0, 0.135, 0.2225, 0.1575,
0.54, 0.89, 0.63, 0.316228, 0.316228, 0.316228, 0.1)
renderTeapot(2.0, 11.0, 0.05375, 0.05, 0.06625,
0.18275, 0.17, 0.22525, 0.332741, 0.328634, 0.346435, 0.3)
renderTeapot(2.0, 8.0, 0.25, 0.20725, 0.20725,
1, 0.829, 0.829, 0.296648, 0.296648, 0.296648, 0.088)
renderTeapot(2.0, 5.0, 0.1745, 0.01175, 0.01175,
0.61424, 0.04136, 0.04136, 0.727811, 0.626959, 0.626959, 0.6)
renderTeapot(2.0, 2.0, 0.1, 0.18725, 0.1745,
0.396, 0.74151, 0.69102, 0.297254, 0.30829, 0.306678, 0.1)
renderTeapot(6.0, 17.0, 0.329412, 0.223529, 0.027451,
0.780392, 0.568627, 0.113725, 0.992157, 0.941176, 0.807843,
0.21794872);
renderTeapot(6.0, 14.0, 0.2125, 0.1275, 0.054,
0.714, 0.4284, 0.18144, 0.393548, 0.271906, 0.166721, 0.2)
renderTeapot(6.0, 11.0, 0.25, 0.25, 0.25,
0.4, 0.4, 0.4, 0.774597, 0.774597, 0.774597, 0.6)
renderTeapot(6.0, 8.0, 0.19125, 0.0735, 0.0225,
0.7038, 0.27048, 0.0828, 0.256777, 0.137622, 0.086014, 0.1)
renderTeapot(6.0, 5.0, 0.24725, 0.1995, 0.0745,
0.75164, 0.60648, 0.22648, 0.628281, 0.555802, 0.366065, 0.4)
renderTeapot(6.0, 2.0, 0.19225, 0.19225, 0.19225,
0.50754, 0.50754, 0.50754, 0.508273, 0.508273, 0.508273, 0.4)
renderTeapot(10.0, 17.0, 0.0, 0.0, 0.0, 0.01, 0.01, 0.01,
0.50, 0.50, 0.50, .25)
renderTeapot(10.0, 14.0, 0.0, 0.1, 0.06, 0.0, 0.50980392, 0.50980392,
0.50196078, 0.50196078, 0.50196078, .25)
renderTeapot(10.0, 11.0, 0.0, 0.0, 0.0,
0.1, 0.35, 0.1, 0.45, 0.55, 0.45, .25);
renderTeapot(10.0, 8.0, 0.0, 0.0, 0.0, 0.5, 0.0, 0.0,
0.7, 0.6, 0.6, .25)
renderTeapot(10.0, 5.0, 0.0, 0.0, 0.0, 0.55, 0.55, 0.55,
0.70, 0.70, 0.70, .25)
renderTeapot(10.0, 2.0, 0.0, 0.0, 0.0, 0.5, 0.5, 0.0,
0.60, 0.60, 0.50, .25)
renderTeapot(14.0, 17.0, 0.02, 0.02, 0.02, 0.01, 0.01, 0.01,
0.4, 0.4, 0.4, .078125)
renderTeapot(14.0, 14.0, 0.0, 0.05, 0.05, 0.4, 0.5, 0.5,
0.04, 0.7, 0.7, .078125)
renderTeapot(14.0, 11.0, 0.0, 0.05, 0.0, 0.4, 0.5, 0.4,
0.04, 0.7, 0.04, .078125)
renderTeapot(14.0, 8.0, 0.05, 0.0, 0.0, 0.5, 0.4, 0.4,
0.7, 0.04, 0.04, .078125)
renderTeapot(14.0, 5.0, 0.05, 0.05, 0.05, 0.5, 0.5, 0.5,
0.7, 0.7, 0.7, .078125)
renderTeapot(14.0, 2.0, 0.05, 0.05, 0.0, 0.5, 0.5, 0.4,
0.7, 0.7, 0.04, .078125)
glFlush()
end = time.clock()
print start, end, end-start
def reshape(w, h):
glViewport(0, 0, w, h)
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
if (w <= h):
glOrtho(0.0, 16.0, 0.0, 16.0*h/w, -10.0, 10.0)
else:
glOrtho(0.0, 16.0*w/h, 0.0, 16.0, -10.0, 10.0)
glMatrixMode(GL_MODELVIEW)
def keyboard(key, x, y):
if key == chr(27):
sys.exit(0)
# Main Loop
glutInit(sys.argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH);
glutInitWindowSize(500, 600);
glutInitWindowPosition(50,50);
glutCreateWindow(sys.argv[0]);
init();
glutReshapeFunc(reshape)
glutDisplayFunc(display)
glutKeyboardFunc(keyboard)
glutMainLoop()
next