This viewpoint slideshow is online at https://X3dGraphics.com/examples/X3dForAdvancedModeling/Blender/viewpointSlideshow.html
Viewpoint image version history at https://sourceforge.net/p/x3d/code/HEAD/tree/www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/Blender/_viewpoints