Example of how to visualize 3d arrays with Paraview.
1. Save the 3d array to vtr file. You can follow the instructions of this link.
https://www.kaggle.com/ironbar/saving...
2. Open the file with Paraview
3. Apply different thresholds to the data, depending on the problem the number and range will be different.
4. Apply different color and opacity to the thresholds
5. Visualize