Testing: load disk_out_ref.ex2 and apply various filters

• Start paraview, remote server.
• Load disk_out_ref.ex2
• Change opacity to 0.3. Compare against image baseline.
• Change Settings -> Render View, Remote Render Threshold to 0.
• Compare server rendered image against baseline.
• Change Settings -> Render View, Remote Render Threshold to 20.
• Change representation to Volume
• Color by Temp. Compare against image baseline
• Plot Over Line. Compare against image baseline
• Select a group of cells, extract selection. Compare against image baseline.
• Find dialog. Find cell 100, extract selection. Compare against image baseline.