Wrong view scaling

Started by lottelita, March 24, 2021, 10:08:04

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Device: Oculust Quest 2
Version number: 1.2.304

I've made an indoor tour using Pano2VR and view it in VR Tourviewer with Occulust Quest 2. But the view scaling is wrong, it's feels like I'm a tiny person and the surrounding is huge. It's the same with the demo tour as well (the interior one).
Please advice what can I do to adjust this.
Thanks in advance.

Ruud van Reenen

The scale is correct, VR Tourviewer uses the physical FOV of the Quest 2. This is fixed and can't be changed in VR, changing it would cause instant nausea. This is because when turning your head 90 degrees in real life, the image has to rotate exactly 90 degrees too. If there's a difference between the physical rotation and the image rotation, nausea is easily triggered.

You can make a comparison with an equirectangular image from your tour by copying it to the Pictures folder on your Quest. Then in the bottom toolbar select Apps, then choose TV (top right) and select 'Your Media' to open your image.
You can then change the projection to 360.
I've tested this and the result is the same as in VR Tourviewer.

The perceived scale is influenced a lot by the camera height when the picture is taken. For example: if the camera is lower than your physical eye height, the world looks bigger. If the camera is higher, you feel like a giant. This is especially noticeable in interior images due to the closeness of the walls.

Ruud van Reenen

What you could try with the Quest 2 is using another IPD setting (distance between your pupils).
You can move the lenses of the Quest 2 to change the IPD setting.
When moving the lenses to the outside for a larger IPD the resulting FOV will be the largest.


Thanks for your response. I made the panos in a 3D software, set the camera height roughly my height so it's should not the problem. I'll try to adjust the IPD and see if it helps.

Ruud van Reenen

Note that for scale perception it even makes a difference whether you're standing or sitting when watching a panorama.
If you're sitting but the image is taken from a standing position, you might still feel like the room is smaller.

Ruud van Reenen

I recommend using the latest version of VR Tourviewer: 1.3.415, especially when using the Quest 2.

The Quest 2 wasn't available yet when 1.2.304 was created, so it hasn't been tested or optimized for it.