def randomVectorOnUnitRadiusXZDisk(self): """ Returns a position randomly distributed on a disk of unit radius on the XZ (Y=0) plane, centered at the origin. Orientation will be random and length will range between 0 and 1 """ v = vec3() while 1: v.set( ((frandom01()*2) - 1, 0, (frandom01()*2) - 1)) if (v.length()>=1): break return v
def randomVectorOnUnitRadiusXZDisk(self):
"""
Returns a position randomly distributed on a disk of unit radius
on the XZ (Y=0) plane, centered at the origin. Orientation will be
random and length will range between 0 and 1
"""
v = vec3()
while 1:
v.set(((frandom01() * 2) - 1, 0, (frandom01() * 2) - 1))
if (v.length() >= 1):
break
return v
def RandomVectorInUnitRadiusSphere(self):
"""
Returns a position randomly distributed inside a sphere of unit radius
centered at the origin. Orientation will be random and length will range
between 0 and 1
"""
v = vec3()
while 1:
v.set((frandom01() * 2) - 1, (frandom01() * 2) - 1,
(frandom01() * 2) - 1)
if (v.length() >= 1):
break
return v
def RandomVectorInUnitRadiusSphere(self): """ Returns a position randomly distributed inside a sphere of unit radius centered at the origin. Orientation will be random and length will range between 0 and 1 """ v = vec3() while 1: v.set ( (frandom01()*2) - 1, (frandom01()*2) - 1, (frandom01()*2) - 1) if (v.length()>=1): break return v