Slicer 4.13.0:
For recording the 3D view you can go to “Sequences”, create a new SequenceBrowser, select “Camera” as a Proxy node, and record the sequence that you want to generate the PNG file series from.
Then go to the “Screen Capture” extension, select animation mode → sequence, select the SequenceBrowser you created before and use “output type” → image series. Press “Capture” to create the PNG files.
