Yes. I've done that, exactly as written. Several times with several stacks.
Using the demo of the rock sample I get a pair of rotating white splodges but this time with a very few black speckles and a big horizontal black bar going straight across the pair.

As a total newbie you will have to forgive me for being totally thick. I have tried in vain to find instructions about how to generate 3D stereo images - or indeed how to get Helicon 3D viewer to produce anything at all, other than two rotating white splodges. It can obviously be done - but not by me!