How Lenticular Printing Works
Lenticular prints are the result of specially prepared graphics combined with a lenticular lens that allows the viewer to see different images depending on their viewing angle.
How 3-D Images Work
As human beings we perceive objects in our world not just in relation to each other horizontally or vertically, but with depth as well. The main reason for this is that we have binocular vision, or in other words, we look at objects with two eyes
PPI and DPI
The terms DPI and PPI are occassionally used improperly. Many people believe these terms are interchangeable, and quite often when creating images for conventional printing it doesn't matter very much. When creating images for lenticular printing, it’s important to understand the distinction between PPI (Pixels-Per-Inch) and DPI (Dots-Per-Inch) because this will affect how you create your lenticular images and how they are printed.