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371
Adobe Photoshop Help
Designing Web Pages
Using Help
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Contents
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Index
Back
371
Layer-based slices are especially useful when working with rollovers. If you apply an effect
to the layer—such as a drop shadow or glow—to create a rollover state, the slice automat-
ically adjusts to encompass the new pixels. However, do not use a layer-based slice when
you plan to move the layer over a large area of the image during an animation, because
the slice dimension may exceed a useful size.
To create a slice from a layer:
1
Select a layer in the Layers palette.
2
Choose Layer > New Layer Based Slice.
Converting auto slices to user slices
You can move, duplicate, combine, divide, resize, delete, arrange, align, and distribute user
slices. You can also apply different optimization settings to user slices. In contrast, all auto
slices in an image are linked and share the same optimization settings. This is because
auto slices are regenerated every time you create or edit a user slice or layer-based slice.
Converting an auto slice to a user slice prevents it from being changed when regeneration
occurs. Dividing, combining, linking, and setting options for auto slices automatically
converts them to user slices.
To convert an auto slice to a user slice:
1
Select an auto slice. In ImageReady, you can select multiple slices. (See
“Selecting slices”
on page 373
.)
2
Do one of the following:
•
(Photoshop) With the slice select tool selected, click Promote to User Slice in the
options bar.
•
(ImageReady) Choose Slices > Promote to User-slice(s).
Converting layer-based slices to user slices
Because a layer-based slice is tied to the pixel content of a layer, the only way to move,
combine, divide, resize, and align it is to edit the layer. You can convert a layer-based slice
to a user slice to unlink it from the layer.
To convert a layer-based slice to a user slice:
1
Select a layer-based slice. In ImageReady, you can select multiple slices. (See
“Selecting
slices” on page 373
.)
2
Do one of the following:
•
(Photoshop) Click Promote to User Slice in the options bar.
•
(ImageReady) Choose Slices > Promote to User-slice(s).
Viewing slices
You can view slices in Photoshop, the Photoshop Save for Web dialog box, and
ImageReady. The following characteristics can help you identify and differentiate between
slices:
Slice lines
Define the boundary of the slice. Solid lines indicate that the slice is a user slice
or layer-based slice; dotted lines indicate that the slice is an auto slice.
