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Layer styles
Photoshop provides a variety
of layer styles—such as shadows, glows, and bevels—that change the
appearance of a layer. After Effects can preserve these layer styles
when importing Photoshop layers. You can also apply layer styles
in After Effects and animate their properties.
In addition to the layer styles that add visual elements—like
a drop shadow or a color overlay—each layer’s Layer Styles property
group contains a Blending Options property group. You can use the
Blending Options settings for powerful and flexible control over
blending operations.
Though layer styles are referred to as effects in
Photoshop, they behave more like blending modes in After Effects.
Layer styles follow transformations in the standard render order,
whereas effects precede transformations. Another difference is that
each layer style blends directly with the underlying layers in the composition,
whereas an effect is rendered on the layer to which it’s applied,
the result of which then interacts with the underlying layers as
a whole.
When you import a Photoshop file that includes layers as a composition,
you can retain editable layer styles or merge layer styles into
footage. When you import only one layer that includes layer styles,
you can choose to ignore the layer styles or merge layer styles
into footage. At any time, you can convert merged layer styles into
editable layer styles for each After Effects layer based on a Photoshop footage
item.
After Effects can preserve all layer styles in imported Photoshop
files, but you can only add and modify some layer styles and controls
within After Effects.
Layer styles that you can apply and edit in After Effects- Drop Shadow
- Adds
a shadow that falls behind the layer.
- Inner Shadow
- Adds
a shadow that falls inside the contents of the layer, giving the
layer a recessed appearance.
- Outer Glow
- Adds a glow that emanates outward
from the contents of the layer.
- Inner Glow
- Adds a glow that emanates inward from the contents of the
layer.
- Bevel And Emboss
- Adds
various combinations of highlights and shadows.
 Use
the Bevel And Emboss layer style rather than the Bevel Alpha effect
if, for example, you want to apply different blending modes to the
highlights and shadows of a bevel. - Satin
- Applies
interior shading that creates a satiny finish.
- Color Overlay
- Fills
the contents of the layer with a color.
- Gradient Overlay
- Fills
the contents of the layer with a gradient.
- Stroke
- Outlines
the contents of the layer.
Add, remove, and convert layer styles- To
convert merged layer styles into editable layer styles, select one
or more layers and choose Layer > Layer Styles > Convert To
Editable Styles.
- To add a layer style to selected layers, choose Layer
> Layer Styles, and choose a layer style from the menu.
- To remove a layer style, select it in the Timeline panel
and press Delete.
- To remove all layer styles from selected layers, choose
Layer > Layer Styles > Remove All.
When a layer style is applied to a vector layer—such
as a text layer, a shape layer, or a layer based on an Illustrator
footage item—visual elements that apply to the edges of the contents
of the layer apply to the outlines of the vector objects, such as
text characters or shapes. When a layer style is applied to a layer
based on a non-vector footage item, the layer style applies to the
edges of the layer’s bounds or masks.
You can apply a layer
style to a 3D layer, but a layer with a layer style can’t intersect
with other 3D layers or interact with other 3D layers for casting
and receiving shadows. 3D layers on either side of a layer with
a layer style can’t intersect one another or cast shadows on one
another.
When you use the Layer > Convert To Editable Text
command on a text layer from a Photoshop file, any layer styles
on that layer are also converted to editable layer styles.
Layer style settingsEach
layer style has its own collection of properties in the Timeline
panel.
- Align With Layer
- Uses the bounding box of the layer to calculate the gradient fill.
- Altitude
- For the Bevel And Emboss layer style, the elevation of the
light source above the layer, in degrees.
- Choke
- Shrinks the boundaries of the matte of an Inner Shadow or
Inner Glow before blurring.
- Distance
- The offset distance for a Shadow or Satin layer style
- Highlight Mode, Shadow Mode
- Specifies the blending mode of a bevel or emboss highlight
or shadow.
- Jitter
- Varies the application of the colors and opacity of a gradient,
which reduces banding.
- Layer Knocks Out Drop Shadow
- Controls the visibility of a drop shadow in a semitransparent
layer.
- Reverse
- Flips the orientation of a gradient.
- Scale
- Resizes the gradient.
- Spread
- Expands the boundaries of the matte before blurring.
- Use Global Light
- Set this option to On to use the Global Light Angle and Global Light
Altitude in the Blending Options property group instead of the Angle
and Altitude settings for each individual layer style. This option
is useful if you have multiple layer styles applied to the same
layer and want to animate the position of the light for all of them.
Blending options for layer stylesEach
layer style has its own blending mode, which determines how it interacts with
underlying layers. The underlying layer in this context may or may
not include the layer to which the layer style is applied. For example,
a drop shadow does not blend with the layer to which it’s applied,
because the shadow falls behind the layer; whereas an inner shadow
does blend with the layer to which it’s applied.
Layer styles
can be categorized as interior layer styles or exterior layer styles. Interior
layer styles affect the opaque pixels of the layer to which they’re
applied. Interior layer styles include Inner Glow, Inner Shadow,
Color Overlay, Gradient Overlay, Satin, and Bevel And Emboss. Exterior
layer styles do not blend with the pixels of the layer to which
they’re applied, but only interact with the underlying layers. Exterior
layer styles include Outer Glow and Drop Shadow.
If Blend
Interior Styles As Group is set to On, interior layer styles use
the blending mode of the layer.
If you modify the Opacity
property of a layer, the opacity of the contents of the layer and
the opacity of the layer styles are all affected. If, however, you
modify the Fill Opacity property in the Blending Options property
group, the opacity of the layer styles is unaffected. For example,
if a text layer has the Drop Shadow layer style applied, decreasing
the Fill Opacity to 0 makes the text disappear, but the drop shadow
remains visible.
Use the Blend Ranges From Source option to
use the advanced blending options set for the Photoshop file that
determine what blending operations to perform based on the color
characteristics of the input layer.
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