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Participating in the World Wide Panorama:
Image Dimensions and File Sizes


Updated March 2015

We don't want to stifle your creativity, but we do have to specify dimension limits so we can fit all the panoramas on the same size pages, and maximum file sizes to keep download times, server storage and bandwidth usage under control.

You have four "slots" to upload into. They are described in more detail below.


High resolution RGB JPEG (strongly recommended)


Additional files

QTVR STANDARD VERSION (optional, deprecated)

NOTE: You do not need to upload a QTVR version if you have uploaded a JPEG image (see above)

The standard size panorama should be of modest size, to be accessible to as many viewers as possible.

It should be possible to produce a standard size panorama with a file size of less than 700 kb. Consider this your goal when optimizing. The maximum file size that will be accepted for a standard panorama is 1024 kb.

We have found that when creating standard version cubic panoramas, a QTVR with cube faces of 1024 pixels (equirectangular source of 3216x1608 pixels) and a compression of Photo-JPEG at 30-40% (QuickTime scale) gives very good results.


QTVR FULL-SCREEN VERSION (optional, deprecated)

NOTE: You do not need to upload a QTVR version if you have uploaded a JPEG image (see above)

We would also like to host a "full-screen" version of your panorama. Site visitors have found fullscreens to be much more engaging than smaller versions.

When creating a full-screen be aware that it will be viewed at 1000 to 1600 pixels wide, sometimes more. File size, however, is still an issue - careful optimization is critical.

Your full-screen panorama can be produced to be viewed at any size - its viewing window will resize when opened.

It should be possible to produce a full-screen size panorama with a file size of less than 3 mb. Take this as a goal. The maximum file size that will be accepted for a full-screen panorama is ~10 MB.

We have found that when creating fullscreen cubic panoramas, a QTVR with cube faces of 1908 pixels (equirectangular source of 6000x3000 pixels) and a compression of Photo-JPEG at 30-40% (QuickTime scale) gives very good results. Using tiled cube faces can significantly increase playback performance. For the 1908 pixels example, a 3x3 to 5x5 tiling setup usually works well.


MP3 AUDIO FILE (optional)

PLEASE RESPECT THE ARTIST’S WORK. All images are copyright by the individual photographers, unless stated otherwise. Use in any way other than viewing on this web site is prohibited unless permission is obtained from the individual photographer. If you're interested in using a panorama, be it for non-profit or commercial purposes, please contact the individual photographer. The WWP can neither negotiate for, nor speak on behalf of its participants. The overall site is copyright by the World Wide Panorama Foundation, a California Public Benefit Corporation.