Spherical panorama vs spherical vs cubemap 6x1?

[Richard7666]

For 360 panoramas, I've I've seen people say to use 'spherical panorama' in the V-ray global settings camera section, as 'spherical' is outdated. However, I get weird repeating results with 'spherical panorama', see attachment:

For both of these I set the FOV override to 360, is that correct? I am using Krpano to produce the final panoramas.

Basically, I'm looking for whatever is the best way to produce minimal distortion. Any pointers much appreciated!

[delineator]

Would like to know this too. The spherical panorama doesn't seem to wrap correctly and the projection seems off (by default). I'm currently using the spherical camera set to 360 and it works as I would expect it to.

cube map would be fine UNLESS your doing any editing or compositing, in which case, I'd maintain equi rectangular projection is the best way to keep everything (this is how most programs like pano2vr prefer it, this is how Adobe CC prefers it, especially with the new tools in Premiere Pro and the upcoming tools in After Effects)

[Richard7666]

something like this is what I am aiming for.
http://www.sommarnojen.se/hus/attefa...ma-fritidshus/

When using Spherical, after putting it through krpano I get significantly more distortion at the edges than the above example has.
I hoped Spherical Panorama would fix it but seems I'm doing something wrong.

[delineator]

YEAH, they are using pano2vr (and I do as well) - i personally think its much better than krpano. Maybe there is some tweaking that can be done in krpano, but everytime i see a weird pano distoration where you can see the edges of the cubic box, I check the plugin and yup, krpano.

Feed a spherical pano into pano2vr and then see for yourself - pretty much perfect

[Richard7666]

Oh thanks! Will give it a go.

[fernando_pinheiro]

Hello guys,

I have an issue that i think this topic may help.

Been doing some 360 VR Tours, and using Latlong images (360 spherical panoramas at 6000 x 3000)

When i see the result on a VR headset like Quest 2, the objects that are near me look too near, and the ones far from me look to far.

Do you believe that using Cubemaps instead will solve this?

The other issue with that is that i do not find a Web based service to upload cubemaps, only latlongs.

Been using Roundme and Orbix360 for the panorama images, creating tours with hotspots, etc.

Any suggestions for the cubemaps? Thanks!

[Garryclarke]

Hmm... I do quite a few 360 renders and I've not had any problems. Setting up VRay for 360 rendering is easy.

Put a camera at the nodal point, horizontal and pointing in the direction that you want the middle of the image to be.
Set the size of the render to be a 2:1 ratio (eg 15000x7500)
In the Camera tab, set Type to Spherical and override FOV to 360
Render

A few times I've matched the rendering to an actual 360 photo (taken with NCTech camera) and it matched really well, given the limitations of the Pano Camera (it's a multi lens system). Nothing seemed too close or far away.
For the Pano Tour itself we're still using Kolor Panotour Pro which works for what we need and the finished tour can sit on our own servers.

[fernando_pinheiro]

Hmm... I do quite a few 360 renders and I've not had any problems. Setting up VRay for 360 rendering is easy.

Thanks for the feedback.

Yes i do not have any issues with the rendering, but seeing the tour on the Oculus Quest 2 the nearer objects look to near, and i have my camera placed at 160 cm height.

Navigate here to the bedroom, and look to your right to the bedside table:

https://orbix360.com/KVrOkRT6z

Here on the PC it does not look to bad, but in the headset it looks strange. The bedroom and the outdoor patio lookei okei, but the bedside table looks to near.

This one was a cubemap, and it looks far better on the headset:

https://vrto.me/?k=bn8n&c=1

[Garryclarke]

I don't use a headset (all our panotours are designed to be viewed on screen) but to me the angle of view looks very wide, but this may just be the way that a VR tour looks on the desktop.
The cubemap seems even more extreme and it feels slightly nauseous panning around.

[fernando_pinheiro]

I don't use a headset (all our panotours are designed to be viewed on screen) but to me the angle of view looks very wide, but this may just be the way that a VR tour looks on the desktop.
The cubemap seems even more extreme and it feels slightly nauseous panning around.

Yes its funny you say that, because in the VR headset happens the opposite, the setereo cubemap feels more natural, for me.

I also believe the angle of view on desktops looks too wide, but we just need to ajust the web browser window a bit and it looks better, not too wide (as in a phone)

[Morne]

For desktop. the "wideness" look is down to the FOV. You can just adjust that in your viewing platform. If you host yourself and use proper software you have control over all that.