Definition of transition effect

(in video editing and presentation software) a method of changing the scene from one view to another. Transition effects can give visual interest to a presentation by introducing an element of motion to the graphics. In video editing, they can help establish a change in location, or indicate the passage of time. There are literally hundreds of transition effects, and the exact terminology varies from program to program. Basically, there are four major types of transition effects:

1. Dissolve. Gradually replaces the first image with the second, either superimposing the pictures in mid-transition (like a double exposure) or replacing the image pixel-by-pixel or in larger blocks.
2. Swipe. The first image is seemingly wiped off, revealing the second image underneath. Swipes can go from left to right, right to left, up, or down, and the speed and the sharpness of the swipe edge can usually be controlled.
3. Fade. The image either darkens to black or lightens to pure white.
4. Fly-in. An image element moves in suddenly from off-screen.

It is wise to use transition effects sparingly. Not every editing cut or slide change merits special attention; in fact, overuse of distracting transitions will annoy and possibly confuse the audience.