Adobe Illustrator CS3 - Manual (Page 401)

ILLUSTRATOR CS3
User Guide
395
Diffusion Applies a random pattern that is usually less noticeable than Pattern dither. The dither effects are diffused
across adjacent pixels. If you select this algorithm, specify a Dither percentage to control the amount of dithering
applied to the image.
Note: Diffusion dither may cause detectable seams to appear across slice boundaries. Linking slices diffuses the dither
pattern across all linked slices, and eliminates the seams.
Pattern Applies a halftone-like square pattern to determine the value of pixels.
Noise Applies a random pattern similar to the Diffusion dithering, but without diffusing the pattern across adjacent
pixels. No seams appear with the Noise algorithm.
See also
“Optimize an image for the web” on page 383
SWF optimization options (Illustrator)
The Adobe Flash (SWF) file format is a vector-based graphics file format for the creation of scalable, compact
graphics for the web. Because the file format is vector-based, the artwork maintains its image quality at any
resolution. The SWF format is ideal for the creation of animation frames, but you can also save raster images in SWF
format or mix raster and vector graphics.
Optimization settings for SWF
A. File format menu B. Flash Player menu C. Export menu
Preset Specifies the preconfigured set of options you want to use for export. You can create new presets by setting
options as desired, and then choosing Save Settings from the panel menu. (To open the panel menu, click the triangle
to the right of the Preset menu.)
Flash Player Version Specifies the earliest version of Flash Player that will support the exported file.
Type Of Export Determines how layers are exported. Select AI File To SWF File to export the artwork to a single
frame. Select Layers To SWF Frames to export the artwork on each layer to a separate SWF frame, creating an
animated SWF.
Note: Select AI File To SWF File to preserve layer clipping masks.
Curve Quality Specifies the accuracy of the bezier curves. A low number decreases the exported file size with a slight
loss of curve quality. A higher number increases the accuracy of the bezier curve reproduction, but results in a larger
file size.
Frame Rate Specifies the rate at which the animation will play in a Flash viewer. This option is available only for
Layers To SWF Frames.
Loop Causes the animation to loop continuously, rather than play once and then stop, when played in a Flash viewer.
This option is available only for Layers To SWF Frames.
A
B
C