def point_noise(*args):
"""Returns a point whose value is a (pseudo) random function of its arguments."""
la = len(args)
if la==1:
try:
a = len(args[0])
except:
a = 1
if a==1:
return noise.vnoise(args[0],0,0)
elif a==2:
return noise.vnoise(args[0],0)
elif a==3:
return noise.vnoise(args[0])
else:
raise ValueError("arg1: invalid argument length")
elif la==2:
try:
a = len(args[0])
except:
a = 1
if a==1:
return noise.vnoise(args[0],args[1],0)
elif a==3:
return noise.vnoise(args[0],args[1])
else:
raise ValueError("arg1: invalid argument length")
elif la==3:
return noise.vnoise(args[0],args[1],args[2])
elif la==4:
x,y,z,t = noise.vnoise(args[0],args[1],args[2],args[3])
return _vec3(x,y,z)
else:
raise TypeError("the function takes between 1 and 4 arguments (%s given)"%(la))
def _tovec3(arg):
try:
a = len(arg)
except:
a = 1
if a==1:
return _vec3(arg,0.0,0.0)
elif a==2:
x,y=arg
return _vec3(x,y,0.0)
elif a==3:
x,y,z=arg
return _vec3(x,y,z)
elif a==4:
x,y,z,t=arg
return _vec3(x,y,z)
else:
return _vec3()
def point_cellnoise(*args):
"""Returns a point whose value is a (pseudo) random function of its arguments.
The return value is constant between integer lattice points.
"""
la = len(args)
if la==1:
try:
a = len(args[0])
except:
a = 1
if a==1:
return noise.vcellnoise(args[0],0,0)
elif a==2:
return noise.vcellnoise(args[0],0)
elif a==3:
return noise.vcellnoise(args[0])
else:
raise ValueError,"arg1: invalid argument length"
elif la==2:
try:
a = len(args[0])
except:
a = 1
if a==1:
return noise.vcellnoise(args[0],args[1],0)
elif a==3:
return noise.vcellnoise(args[0],args[1])
else:
raise ValueError,"arg1: invalid argument length"
elif la==3:
return noise.vcellnoise(args[0],args[1],args[2])
elif la==4:
x,y,z,t = noise.vcellnoise(args[0],args[1],args[2],args[3])
return _vec3(x,y,z)
else:
raise TypeError, "the function takes between 1 and 4 arguments ("+`la`+" given)"
def point_random():
"""Return a point (a vec3) whose componenets are a random number between 0 and 1."""
return _vec3(random.random(), random.random(), random.random())
def color_random():
"""Return a color whose componenets are a random number between 0 and 1.
The function actually returns a vec3."""
return _vec3(random.random(), random.random(), random.random())
