VisIt

1. Download VisIt
2. VisIt User Manual
3. VisIt GUI User Manual
4. VisIt Python (CLI) Interface Manual
5. VisIt Tutorials
6. Data formats
7. VisIt Discussion Forum

Tips, etc.

1. Good colormaps: Spectral, Turbo, RdYlBu, RdYlGn, Plasma, Rainbow, Viridis
2. Finding min/max over a time dependent dataset and using it for pseudocolor plot