Curved horizon when uploading media in momento360 but not in the PTGui viewer

[Jérémy Baumert]

Hi everybody,

I just started using this tool and still learning. I'm also using Momento360 to show the panorama files to my clients and embed them on websites.

Until then I was using the panorama files created directly from my Dji Air 3S, but for quality reasons I switched to PTGui this week. 

There's a thing I don't understand. When I upload the panorama created by my Air3s, the horizon is straight, but when I use the PTGui panorama it appears curved on Momento. What can I do to correct that? The same file is fine when viewed with PTGui viewer.

Thanks in advance!

[PTGui Support]

Hi Jérémy,

Most panorama viewers expect the horizon to be in the center of the
panorama. If you cropped the panorama after stitching, and cut off
different amounts from the top and the bottom, the horizon is no longer
in the middle, resulting in a faulty projection.

Generally it's best to output a full 360 x 180 degree equirectangular
image. This will have a 2:1 aspect ratio.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

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[Jérémy Baumert]

Hi Joost, thank you very much for your help.

It is good now indeed, but I have a hole in the sky (that's why I was cropping in the first place) despite all my control point set. How can I fill this? I know the photos exists, and I put the CP on them but the hole is still there :/

[Jérémy Baumert]

Nevermind, I just figured that it is a blind spot. I guess Dji must autofill this place when rendering the panorama? I just filled it in Photoshop. 

[Erik Krause]

baumert...@gmail.com schrieb am Montag, 29. Juni 2026 um 15:44:41 UTC+2:

Nevermind, I just figured that it is a blind spot. I guess Dji must autofill this place when rendering the panorama? I just filled it in Photoshop. 

In Panorama Editor, Blending side menu, check Fill Holes. This will smoothly fill the hole with a uniform colour. 

If you have images for the hole but no control points are found, just drag them in place in Pano Editor, edit single images mode.