Start by unchecking the Constrain Proportion box. This is done using the Image -> Image Size dialog. The first step is to open the panorama and to transform it into a square. With your panorama ready, it only takes a few moments to make the wee planet in Photoshop. Do so after the leveling because it affects edges. In that case, it is important to crop the opposites sides of the panorama so that they match exactly. If you used your camera’s built-in Sweep Panorama (Sony) or Motion Panorama (Fuji), you may have more than 360°. Although it is better to assemble a panorama photo from level shots, modern panorama software can often level things for you. If you stitched images using panorama software that handles 360° panoramas, edges should exactly match as long as the horizon is level. Because the horizon gets looped into a circle, anything other than 360° will not make a seamless planet. The first step in creating a wee planet is therefore to make a 360° panorama photo. This technique requires a panorama with an angle-of-view of exactly 360° and distorts is so that it gets wrapped in a circle which fits nicely into a square image. The technical term for wee planet is stereographic projection, although if you Google that you will see a lot more math than simply searching for wee planet. This creates an unusually interesting image that looks like a small planet shot from above using a fisheye lens. One way to show everything at once is to transform the panorama into a wee planet. Such an image is difficult to print and see as a whole due to its extreme aspect-ratio. A panoramic photo is capable of showing a 360° angle-of-view all around.
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