I didn’t know you could do that inverse function in Wilbur. Wild. Not knowing that, I put way too much effort into figuring out the problem for myself. That hand-drawn looking globe in the upper right was the product of that work. I’m very familiar with Korslan and Marditha and somewhere in the darkness beyond the Kors Gulf, Hardlannen.
Short story. I made an ico-sphere in Blender(reduced to 20 sides). I fit a UV-map to my icosahedral image, used that to map my image as a texture on the icosphere. Finally, I put a panorama camera set to equirectangular and a light source at the center of the icosphere and rendered.