I'm trying to convert a series of existing panos to cubes in order to make the iPhone/iPad viewer work properly. The panos are all partial spheres. I took the rendered pano and dropped it onto the "Convert SPHERE to CUBE" droplet, which successfully breaks the image up into 6 square sides. However, the horizon line becomes extremely curved when this happens.
Is there a way to stop that from happening? I can't figure out if the distortion is coming from the way I shot the pano, or the way I converted it to a cube, or the way that the viewer is handling the pano. I did notice that the "voffset" element that I used in my .XML files in the spherical panos to correct distortion does not seem to have any effect in a cube pano.
I just need to know what step in the process is resulting in the distortion so that I know if I need to reshoot the pano, or re-render the pano, or reconvert, or whatever I need to do to make it display correctly.
Thanks!