How to Animate Multiple VTK files ParaView 5.11

I have at least 1000 files of 3D numpy array (96 X 144 X 32) of climate variables that I want to visualize through time.

I have converted the numpy files to VTK files.

My question is, how can I animate the 3D map across time?

Methods and Problems I have encountered:

  1. Using ParaView application
  • Load some vti (vtk) files (it visualizes correctly). Go to animation view and add new keyframe. Start animation (ParaView crashes and closes. The keyframe causes the crash).
  1. pvpython Script.
  • I couldn’t find an example that does animation with vtk files.

Could someone show me an example script?

This is the script I got using ChatGPT. I load this into the paraview application ‘load sate’, but doesn’t render anything and outputs

"Traceback (most recent call last):
File “”, line 3, in start_cue
NameError: name ‘Text’ is not defined
Traceback (most recent call last):
File “”, line 11, in tick
NameError: name ‘GetAnimationScene’ is not defined
Traceback (most recent call last):
File “”, line 11, in tick

import sys, glob

from paraview.simple import *

# Load the first VTK file

vtkFileNames = sorted(glob.glob("*_0.vti"))



data = XMLImageDataReader(FileName=[vtkFileNames[0]])

# Load the remaining VTK files

for i in range(1, len(vtkFileNames)):

vtkFileName = vtkFileNames[i]

data = AppendDatasets(Input=[data, XMLImageDataReader(FileName=[vtkFileName])])

# Define the time values

timeValues = [i for i in range(len(vtkFileNames) - 1)]


data.PointData.GetArray("TimeValue").SetTuple1(0, timeValues[0])

for i in range(1, len(timeValues)):

data.PointData.GetArray("TimeValue").SetTuple1(i, timeValues[i])

# Show the animation



# Play the animation

animationScene = GetAnimationScene()


Please update the script you pasted: for loops are not indented so hard to so what is expected.

From what I understand, you have one .vti file per timestep. So try


see the exact example here