Transition Between Two Images during a 90-deg Rotation

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Transition Between Two Images during a 90-deg Rotation

Postby im42n8 » Tue Oct 16, 2018 2:34 pm

Most ProShow users transition images during a rotation of either 180 degrees or 360 degrees. Doing that in only 90 degrees presents some problems that have to do with differences in apparent size over the rotation range. Those changes require some physical adjustments to the zoom and pan settings.

This tutorial shows how those changes are dealt with in two different ways. The first is accomplished using 1) a mathematical analysis of the changes in layer width and height from the non-rotated state to the state at 90-degrees of rotation (using relevant relationships and geometry) and 2) an approach using my Tools for ProShow (which does all the hard mathematical work for you). Knowing how to look at such an effect makes creating that effect much easier to do.

If you'd like to create the effect but would like to:

• Have the math done for you, try my Tools For ProShow (the basic and free version helps figure out what to do but the Full Version provides much more assistance)
• Do the math yourself, here's the relationships that apply: ProShow Equations



u/d 181020 ProShow Equations
Cheers!
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