import numpy as np import matplotlib.pyplot as plt from matplotlib.animation import FuncAnimation from mpl_toolkits.mplot3d import Axes3D  bits=3 fig = plt.figure() fig.subplots_adjust(left=0, bottom=0, right=1, top=1) ax = fig.add_subplot(111, projection='3d') ax.set_axis_bgcolor((0.5, 0.5, 0.5)) gradient = np.linspace(0, 1, 2**bits) X,Y,Z = np.meshgrid(gradient, gradient, gradient) colors=np.stack((X.flatten(),Y.flatten(),Z.flatten()),axis=1) ax.scatter(X,Y,Z,alpha=1.0,s=100./2**bits,c=colors,marker='o',linewidth='0')  def update(i):     ax.view_init(elev=20., azim=i)     return fig, ax  if __name__ == '__main__':     plt.axis('off')     fig.set_size_inches(5, 5)     anim = FuncAnimation(fig, update, frames=np.arange(0, 360, 2), repeat=True)     anim.save('%d-bit_color.gif' %(3*bits), dpi=80, writer='imagemagick', fps=24)