I also tried to do the same but no luck. The only remaining difference between IdeaSpaceVR and the example codes is the way scene is implemented. While the former uses JS/JSON construct, the latter defines it inline. That should hardly have any consequence on cross hair. We need to delve deeper, looks like.

Please do inform me. I'll be looking forward to that. Thanks!

Just noticed that https://developers.google.com/vr/develop/web/vrview-web cites an example page http://googlevr.github.io/vrview/examples/hotspots/index.html and it supports gaze navigation. Confirmed testing it with actual Cardboard.

On a closer look, I observed that in the IdeaSpaceVR theme (https://www.ideaspacevr.org/themes/vr-view-360-image-with-hotspot-navigation) doesn't implement function onGetPosition(e) in index.js. Can that be the reason? Also, there is no cross-hair seen in IdeaSpaceVR theme while the github example page displays a circular cross-hair on Cardboard viewer. Are we missing something?

https://www.ideaspacevr.org/themes/vr-view-360-image-with-hotspot-navigation supports Cardboard V2 navigation but lacks supports for information hotspots.

https://www.ideaspacevr.org/themes/ideaspace-360-photo-tour supports information hotspot but supports only desktop/mouse navigation. It doesn't work with Cardboard V2 navigation.

What should be the best way forward to have both info hotspot and Cardboard V2 navigation in a single theme? Write my own afresh? Can I tweak the https://www.ideaspacevr.org/themes/vr-view-360-image-with-hotspot-navigation to support info hotspot?

Any help appreciated...

Theme https://www.ideaspacevr.org/themes/vr-view-360-image-with-hotspot-navigation is expected to support gaze navigation however, it is not working for me. I'm using Google Cardboard viewer and opening the preview given the above link on chrome browser on smartphone. Binocular vision works fine, the Hotspot size changes but nothing happens even of I keep staring for 15s. Am I missing something? Kindly help