#!/usr/bin/env python
# coding: utf-8

# In[ ]:


from k3d import K3D
import numpy

X, Y, Z = numpy.mgrid[:30, :30, :30]
scalars_field = ((X-15.0)/15.0)**2 + ((Y-15.0)/15.0)**2 + ((Z-15.0)/15.0)**2

plot = K3D(background_color=0x000000)
plot += K3D.marching_cubes(scalars_field, level=0.8)
plot.display()