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#!
# This is statement is required by the build system to query build info
if __name__ == '__build__':
raise Exception
import string
__version__ = string.split('$Revision: 1.10 $')[1]
__date__ = string.join(string.split('$Date: 2002/12/31 04:13:56 $')[1:3], ' ')
__author__ = 'Tarn Weisner Burton <twburton@users.sourceforge.net>'
#
# Ported to PyOpenGL 2.0 by Tarn Weisner Burton 10May2001
from OpenGL.GL import *
from OpenGL.GLU import *
from OpenGL.GLUT import *
import sys
def display():
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glCallList(1)
glutSwapBuffers()
def main():
mat_red_diffuse = ( 0.7, 0.0, 0.1, 1.0 )
mat_green_diffuse = ( 0.0, 0.7, 0.1, 1.0 )
mat_blue_diffuse = ( 0.0, 0.1, 0.7, 1.0 )
mat_yellow_diffuse = ( 0.7, 0.8, 0.1, 1.0 )
mat_specular = ( 1.0, 1.0, 1.0, 1.0 )
mat_shininess = 100.0
knots = ( 0.0, 0.0, 0.0, 0.0, 1.0, 1.0, 1.0, 1.0 )
glutInit(sys.argv)
glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH)
glutCreateWindow('molehill')
glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular)
glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess)
glEnable(GL_LIGHTING)
glEnable(GL_LIGHT0)
glEnable(GL_DEPTH_TEST)
glEnable(GL_AUTO_NORMAL)
glEnable(GL_NORMALIZE)
nurb = gluNewNurbsRenderer()
# get a really good sampling
gluNurbsProperty(nurb, GLU_SAMPLING_TOLERANCE, 5.0)
gluNurbsProperty(nurb, GLU_DISPLAY_MODE, GLU_FILL)
# Build control points for NURBS mole hills.
pts1 = []
pts2 = []
pts3 = []
pts4 = []
for u in range(4):
pts1.append([])
pts2.append([])
pts3.append([])
pts4.append([])
for v in range(4):
# Red.
pts1[u].append([2.0*u, 2.0*v, 0.0])
if (u == 1 or u == 2) and (v == 1 or v == 2):
pts1[u][v][2] = 6.0
# Green.
pts2[u].append([2.0*u - 6.0, 2.0*v - 6.0, 0.0])
if (u == 1 or u == 2) and (v == 1 or v == 2):
if u == 1 and v == 1:
# Pull hard on single middle square.
pts2[u][v][2] = 15.0
else:
# Push down on other middle squares.
pts2[u][v][2] = -2.0
# Blue.
pts3[u].append([2.0*u - 6.0, 2.0*v, 0.0])
if (u == 1 or u == 2) and (v == 1 or v == 2):
if u == 1 and v == 2:
# Pull up on single middple square.
pts3[u][v][2] = 11.0
else:
# Pull up slightly on other middle squares.
pts3[u][v][2] = 2.0
# Yellow.
pts4[u].append([2.0*u, 2.0*v - 6.0, 0.0])
if u != 0 and (v == 1 or v == 2):
if v == 1:
# Push down front middle and right squares.
pts4[u][v][2] = -2.0
else:
# Pull up back middle and right squares.
pts4[u][v][2] = 5.0
# Stretch up red's far right corner.
pts1[3][3][2] = 6.0
# Pull down green's near left corner a little.
pts2[0][0][2] = -2.0
# Turn up meeting of four corners.
pts1[0][0][2] = 1.0
pts2[3][3][2] = 1.0
pts3[3][0][2] = 1.0
pts4[0][3][2] = 1.0
glMatrixMode(GL_PROJECTION)
gluPerspective(55.0, 1.0, 2.0, 24.0)
glMatrixMode(GL_MODELVIEW)
glTranslatef(0.0, 0.0, -15.0)
glRotatef(330.0, 1.0, 0.0, 0.0)
glNewList(1, GL_COMPILE)
# Render red hill.
glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_red_diffuse)
gluBeginSurface(nurb)
gluNurbsSurface(nurb, knots, knots, pts1, GL_MAP2_VERTEX_3)
gluEndSurface(nurb)
# Render green hill.
glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_green_diffuse)
gluBeginSurface(nurb)
gluNurbsSurface(nurb, knots, knots, pts2, GL_MAP2_VERTEX_3)
gluEndSurface(nurb)
# Render blue hill.
glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_blue_diffuse)
gluBeginSurface(nurb)
gluNurbsSurface(nurb, knots, knots, pts3, GL_MAP2_VERTEX_3)
gluEndSurface(nurb)
# Render yellow hill.
glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_yellow_diffuse)
gluBeginSurface(nurb)
gluNurbsSurface(nurb, knots, knots, pts4, GL_MAP2_VERTEX_3)
gluEndSurface(nurb)
glEndList()
glutDisplayFunc(display)
if __name__ == '__main__':
try:
GLU_VERSION_1_2
except:
print "Need GLU 1.2 to run this demo"
sys.exit(1)
main()
glutMainLoop()
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