A Complete Guide to Web Design

Creating Animated GIFs 327

Animated GIFs

Creating Animated GIFs

Web Design in a Nutshell, eMatter Edition

Other Options

The following are descriptions of other aspects of animated GIF files that can be
set within most animation programs.

Loop
You can specify the number of times an animation repeats—none, forever, or
a specific number. As noted earlier, not all browsers will support a specific
number of loops (it will either loop or not). One workaround to this problem

Figure 18-1: Disposal method comparison

frame 1

Unspecified

frame 2

replaces entire

non-transparent frame

with another

frame 2 - result

Disposal Methods

frame 1

Do Not Dispose

frame 2

pixels not replaced by next

frame continue to display

frame 2 - result

light gray is not transparent

frame 1

Restore to Background

frame 2

background color or tile

shows through

transparent pixels

frame 2 - result

background tile light gray is transparent

frame 1 frame 2 - result frame 3

Restore to Previous (supported by Microsoft Internet Explorer 3.0 or greater)

frame 2 frame 3 - result

restore previous