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Stereo video hotspot and patch problems

Stereo video hotspot and patch problems
« on: October 15, 2019, 13:59:27 »
Hey!

I work in Pano2VR, my tour is stereo, have mono and stereo panoramas and stereo videos (file name containing '_tb' for videos). Everything works perfectly, except 3 things.

I've created a patch on a stereo 360 video node, and put a video there with alpha channel. My problem is that only in VR Tourviewer the video I've created from the patch is placed slightly off, like around -2 tilt maybe? This only happened in video. When I did the same on a mono and a stereo picture, I just copied the video element on the second picture, and it works perfectly.

BTW I had to make a mono video out of the patch, but it shows perfectly in the browser after generating output on both eyes. If patching needs to be done differently on Stereo videos, I'd like some pointers please.

Anyway another problem I have is hotspots to pictures, info hotspots, popup video and image only show in left eye when I'm on a video. Hotspots to another stereo video show just fine, patches as well. Will this be fixed when single node stereo support arrives?

Another question I have, I also have another video, which refuses to play ever since I made the tour stereo. Before that it worked perfectly, but now I have 2 videos in a stereo tour and only the first plays. Deleting the node and reimporting did not solve this.



Also in pictures right eye doesn't show when I'm hovering above info hotspots or hotspots towards video node for example.

Re: Stereo video hotspot and patch problems
« Reply #1 on: October 16, 2019, 13:30:30 »
Another question I have, I also have another video, which refuses to play ever since I made the tour stereo. Before that it worked perfectly, but now I have 2 videos in a stereo tour and only the first plays. Deleting the node and reimporting did not solve this.

This was fixed by having a dummy node next to the video node. Like with mono panoramas. My bad for not thinking about this.

Ruud van Reenen

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Re: Stereo video hotspot and patch problems
« Reply #2 on: October 17, 2019, 18:17:24 »
Thanks for reporting!

Could you share an example of the stereo video with the patch that is slightly off? Would be very helpful if you could share the Pano2VR project that shows this behaviour. If you can, please send it using WeTransfer to info@vrtourviewer.com

Quote
Anyway another problem I have is hotspots to pictures, info hotspots, popup video and image only show in left eye when I'm on a video. Hotspots to another stereo video show just fine, patches as well. Will this be fixed when single node stereo support arrives?

Note that currently for stereo tours VR Tourviewer expects two nodes per panorama, one for the left eye and one for the right eye. The right eye node requires the same hotspots and other items as the left eye node. Items can be easily copied between nodes using the List View in Pano2VR.

The next update of VR Tourviewer will indeed support single node stereoscopic panoramas, so you won't have to use two nodes for each panorama anymore then. The update is expected to be ready in the next few weeks.
« Last Edit: October 17, 2019, 18:22:20 by Ruud van Reenen »

Ruud van Reenen

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Re: Stereo video hotspot and patch problems
« Reply #3 on: October 28, 2019, 23:02:54 »
Hi,

I've been able to reproduce the issue.
Apparently the video spere that is used to project the 360 video on has a mapping that is shifted about 2.35 degrees. This will be fixed in the next update of VR Tourviewer.

Ruud van Reenen

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Re: Stereo video hotspot and patch problems
« Reply #4 on: October 28, 2019, 23:34:37 »
Note that if you want to use patches with correct stereo depth, you will need to create a separate patch for each eye.
To add these you would have to use the 'old fashioned' way of creating a stereo tour, by creating a node for each eye.

Ie:
- node 1 is panorama A, left eye
- node 2 is panorama A, right eye
- node 3 is panorama B, left eye
- node 4 is panorama B, right eye, etc. etc.

For the browser, you would then have to choose the cardboard HTML template, and edit the properties to check 'Nodes are stereo pairs'.
For VR Tourviewer you will need to add a 'stereo' User Data Tag, so the app knows this tour uses stereo pairs.

As long as the patch doesn't include items that are relatively close to the camera (and will have a large 'stereo separation') you can get away with using a monoscopic patch.
« Last Edit: October 28, 2019, 23:37:11 by Ruud van Reenen »