# Run VTK visualization scripts on Deadline Cloud
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The [vtk-latest](https://github.com/aws-deadline/deadline-cloud-samples/tree/mainline/job_bundles/vtk-latest) job bundle runs VTK (Visualization Toolkit) Python scripts on Deadline Cloud. The bundle is generalizable for any VTK-based Python script that accepts command-line parameters for output path, width, and height, and saves visualization output to a specified location.

Your VTK script must accept the following command-line arguments:
+ `--output`: Output file path
+ `--width`: Image width
+ `--height`: Image height

The bundle includes a sample script (`sample/flow_simulation_visualization.py`) that creates a 3D airfoil geometry, generates a flow field, calculates pressure distribution, and saves the output as an image with streamlines.

To run this bundle, your queue needs the `vtk` and `numpy` conda packages available in the queue environment's conda channels.

Submit the job with these parameters:
+ `InputDir`: Directory containing your VTK script
+ `InputScript`: Filename of your script
+ `OutputDir`: Where to save the visualization
+ `OutputFilename`: Name for the output file
+ `ExtraParams`: Additional script parameters in the format `--param1 value1 --param2 value2`