Here are some resources to help you create your own 360 images from artwork, drawings, or other manipulated/edited images.
- First you need an image in a 2:1 aspect ratio, like the one above. Here is a link to a 6000 pixel by 3000 pixel template in Google Drawings to get you started.
- This post also talks about how to create 360 drawings: https://dmswart.com/2016/06/28/drawing-a-panorama/ and includes a download to an equirectangular perspective grid.
- This post is great too: http://studiobehind90.com/2016/12/25/how-to-create-360-panorama-painting-in-photoshop/ Check out that art!
- The math behind this is discussed in this paper: Guidelines for Drawing Immersive Panoramas in Equirectangular Perspective António Araújo
I used Exif Fixer to embed the 360 exif data into the 2D image. You can find directions for doing that here http://panoramaphotographer.com/software/exiffixer/. (Thanks for showing me this app Donnie Piercey)
After using Exif Fixer on your image, you can view it in 360 form by uploading it to Google Photos, Google Tour Creator, Facebook, or a tool like https://kuula.co/ or https://www.youvisit.com/builder/.