Not all browsers/devices can handle one large (20480px or wider) equirectangular panorama file. So i'm converting the (partial) equirectangular panorama to a cube face panorama. In addition, a lower resolution (4096px wide) equirectangular mobile fallback version is created.
This is tested on windows but the most parts should also apply to other OS's.
The script assumes a full (360° by 180°) panorama with an aspect ratio of 2:1. If it isn't, the top is filled with black to accomplish the 2:1 ratio.
- ImageMagick (convert)
- Hugin (nona)
- powershell
- First stitch photos, for example with Microsoft "Image Composite Editor" (ICE), as equirectangular (sphere) projection
- Export the partial panorama or if your panoram is missing the sky, try the following steps in ICE to autocomplete the sky:
- In step 2 (STITCH), change "Pitch" under "Orientation" section to 90 degrees.
- In step 3 "CROP", click "Auto complete".
- Open Powershell an change to a workdir.
- run
panorama.ps1 -panoOriginal <path_to_exported_panorama>- if you previously changed the pitch append the
-fixPitchparameter
- if you previously changed the pitch append the
- copys the panorama in to the workdir
- if specified, fixes the pitch of equirectangular pano using nona
- generates 1000px wide preview
- if needed, expands panorama to 2:1 aspect ratio with black
- creates mobile browser fallback version
- creates cube faces from equirectangular pano using nona
Now we are ready to use the genereated files with eg. pannellum