Hello,
Based on KrPano and Java, a VR-Guide® demo: 8x360° scenes with 3D sounds, 3D comments and videos:
- Don't miss Pseudoscorpion hunting and lap danse of Collembolas!
I apologize, at moment caving demo with comments and videos are only in french but in VR-Guide® architecture all is possible.
The VR-Guide® principle is very simple, you can move forward or backward only when the guide has finished explaining, and that the arrows are visible!
http://vr-guide.online/exploration/
VR-Guide® APK for Android Smartphone manage buffering ressources (images, sounds, videos...) and many others features
as ticket entrance... list of VR-Guide... alternative scenario... to propose a best user/vendor VR online smartphone experience.