how can open 3vr?? in cityengine or viewer?
AFAIK there is no other way besides Gear VR to actually view the file. You also have to upload it to ArcGIS Online and then use a beta app to download it again, after which you can view it offline. Unfortunately you can't just put the file on your phone right away and there's apparently no way to view private 3vrs, so this is a pretty public affair.
There is also a blog post:
GIS2VR: From CityEngine via Unity to HTC Vive | ArcGIS Blog
I don't have it installed but this thread mentions the viewport window
http://desktop.arcgis.com/en/cityengine/latest/get-started/cityengine-2017-0-release-notes.htm
my Question about how to open the file 3vr with this extension again
a quick query in the help
http://cehelp.esri.com/help/index.jsp?topic=/com.procedural.cityengine.help/html/manual/export/vr360/export_formats_3vr.html
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