A useful playlist with 12 tutorial videos for Vivaty Studio learning is available here:
https://www.youtube.com/playlist?list=PLLUmbeWuXkaUBDQe3gFfgSz1JUIJuEieP
Original source: http://crown.panam.edu/toolbox/vrml/vizx/index.html
Tutorial demo files: http://crown.panam.edu/toolbox/vrml/vizx/content/office.zip
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