has a ton of features and potential applications, and it really merits its own
entire article, so this will be just a brief introduction.
When you open up the Vanishing Point dialog (found under the “Filter”
menu item), you’ll see a large preview of your image, along with a small set
of tools on the left side.
The Vanishing Point dialog.
Grab the tool sitting second from the top to set up your initial plane. With
this tool, click once on each of the four corners, outlining the desired plane.
Once you’ve created an initial plane, you can Command + click (Control +
click on a PC) to extend the plane perpendicularly. Some images, though,