Sử dụng photoshop cs5 part 60 ppsx

➤ You can apply layer effects to the adjustment layer, for some great results try Drop Shadow, Inner Shadow, or Bevel and Emboss.. Deselect Ctrl-D/Cmd-D.The type shapes should appear in

Screening back type

In these instructions, you’ll use a Levels adjustment

layer to screen back type A lightened version of the

image will be visible only within the type shapes

To screen back type:

1 Create a document that contains a medium to

dark image layer and an editable type layer (the

type color won’t matter) We recommend using a

large font size and a bold or black font style.A

2 On the Layers panel, Ctrl-click/Cmd-click the T

icon, hide the type layer, then click the

underly-ing image layer or Background

3. On the Adjustments panel, click the Levels

button The Levels controls display and the

type disappears from view temporarily

4 Move the gray Input Levels slider to the left to

lighten the midtones in the type You also can

move the Input Levels highlights slider Move

the Output Levels shadows slider to the right to

reduce the contrast in the type.B–C

➤ To screen back the imagery instead of the type,

after the last step above, click the Levels

adjust-ment layer, then on the Masks panel, click Invert

➤ To reposition the type over the imagery, click the

adjustment layer, then drag the type shape in the

document with the Move tool

➤ You can apply layer effects to the adjustment

layer, for some great results (try Drop Shadow,

Inner Shadow, or Bevel and Emboss)

A The original document contains an image layer and an editable type layer.

B The mask on the Levels adjustment layer is

restricting the adjustment to the type shapes.

C The type is now screened back Only pixels within the character shapes are affected by the Levels adjustment layer.

352 Chapter 20

Putting type in a spot color channel

To create type in a spot color channel:

1 Display the Channels panel, then from the

panel menu, choose New Spot Channel

2 In the New Spot Channel dialog, click the Color

swatch, and if necessary, click Color Libraries to

display the Color Libraries dialog

3 From the Book menu, choose a spot color

match-ing system, such as a PANTONE system

(non-process), click the desired color or type a number

from a swatch book, then click OK twice

4 Display the Layers panel, and create some

edit-able type

5 Ctrl-click/Cmd-click the T icon on the Layers

panel to select the type shapes, then hide the

type layer.A

6 On the Channels panel, click the new spot color

channel

7 Choose Edit > Fill (Shift-Backspace/Shift-Delete)

In the dialog, choose Use: Black; Mode: Normal;

and an Opacity value that matches the tint, or

density, value of the spot color ink to be used on

press If you don’t know what value that should

be, ask the production manager on the project

Click OK The selection will fill with the color

that you chose for the spot color channel

8 Deselect (Ctrl-D/Cmd-D).The type shapes should

appear in the new spot channel on the Channels

panel (but a layer isn’t created on the Layers

panel).B

➤ To reposition the type shapes in the spot color

channel, click the spot color channel, then with

the Move tool, drag in the document

➤ You can’t edit the type characters in a spot

color channel Instead, you have to redo it from

scratch Fill the channel with White, 100%

Opacity, edit the original type layer, then repeat

steps 5–8 above

B Because our type shapes are now in a spot color channel, our commercial printer will be able to create a special printing plate for them.

A The type is converted to

a selection.

IN THIS CHAPTER

Applying layer effects (general info) .353 Applying a shadow effect .356 Applying a glow effect 358 Applying a bevel or emboss effect 360 Applying the Satin effect 362 Applying the Overlay effects 362 Applying the Stroke effect 364 Copying, moving, removing layer effects 364 Applying layer styles 365 Creating layer styles 366

21

business of creating illusions With

layer effects, you can accomplish this

that you can apply alone or in combination include

Drop Shadow, Inner Shadow,Outer Glow, Inner Glow,

Bevel and Emboss, Satin, Color Overlay, Gradient

Overlay,APattern Overlay, and Stroke.Once applied,

layer effects can be edited, hidden, or removed at any

time And best of all, when you modify layer pixels,

the effects update accordingly (they should be called

“Smart Effects”!)

In this chapter, we include generic instructions for

applying, copying, moving, and removing layer effects;

individual instructions for each effect; and finally, the

steps to save and apply effects, combined with other

Layers panel settings, as styles via the Styles panel

Applying layer effects (general info)

Layer effects can be applied to any layer (even to

edit-able type), but not to the Background They affect all

the visible pixels on a layer and update instantly if you

add, modify, or delete pixels from the layer that

con-tains them Each individual effect can be turned on or

off at any time via its own visibility icon

Layer effects are applied and edited via the Layer

Style dialog and are listed on the Layers panel below

the layer they belong to Before exploring the

indi-vidual effects, familiarize yourself with these generic

instructions

To apply layer effects (generic instructions):

1 Do any of the following:

Double-click to the right of a layer name; or for an

image layer (not a type or Smart Object layer), you

can double-click the layer thumbnail instead

Click a layer, then choose an effect from the Add

Layer Style menu at the bottom of the Layers

panel

AThree effects are applied to this editable type: Drop Shadow,

Bevel and Emboss, and Gradient Overlay.

Continued on the following page

354 Chapter 21

The Layer Style dialog opens.A

2 Click an effect name on the left side, check

Preview to preview the effect in the image, then

choose settings

additional effects to the same layer

4 Click OK.

5. Edit the layer (e.g., for a type layer, edit the

type; for an image layer, add or erase some

pixels) Watch as the “smart” effect(s) update

instantly!

On the Layers panel, layers that contain effects

have this icon: Click the arrowhead next to

the icon to expand or collapse the list of effects

for that layer (B, next page)

6 To change the settings for an effect or to add

more effects to a layer, double-click the layer or the Effects listing, or double-click the effect name, which is nested below the layer name

7. To hide or show one layer effect, expand the effects list for the layer, then click the visibility icon for the effect

To hide all the effects on a layer, click the visibility icon for the “Effects” listing

➤ If you readjust the Angle for an individual effect while Use Global Light is checked, that angle will be applied to any other effects that are using the Global Light option This option unifies the lighting across multiple layer effects

➤ If you move layer pixels, any effects on the layer will also move

A In the Layer Style dialog, click the name for the layer effect that you want to

display and choose settings for (the box becomes checked automatically) The Contour presets define the effect

profile Gray areas in the thumbnail represent opaque pixels, and white areas represent transparency To close the preset picker, either double-click a contour or click in the dialog.

What kind of imagery can layer effects be

applied to?

➤ We recommend applying the layer effects that

work inward or outward from edges — Drop

Shadow, Inner Shadow, Outer Glow, Inner Glow,

Bevel and Emboss, and Stroke — to a type layer,

shape layer, or any layer imagery that’s

sur-rounded by transparent pixels.ATo isolate a

subject from its background before applying

layer effects, select an area of a layer, then press

Ctrl-J/Cmd-J (the Layer via Copy command)

➤ You can apply the Satin, Color Overlay, Gradient

Overlay, and Pattern Overlay effects either to

fully opaque layers or to layers that contain

transparency

Note: Don’t bother creating a selection before

apply-ing a layer effect Your selection will be ignored by

the Layer Style command

CHOOSING DEFAULT LAYER STYLE SETTINGS ★

➤ To establish new default settings for a particular layer effect, choose the desired settings in the Layer Style dialog, then click Make Default

➤ To restore the default settings to a layer effect that you established by clicking Make Default (or to restore the factory default settings, if you didn’t establish user default settings), click Reset to Default

➤ To restore the settings that were in place in all the panels when you opened the Layer Style dialog, Alt-click/Option-click Reset (Cancel becomes Reset)

➤ Unfortunately, the only way to restore the factory default settings to all layer effects is by resetting all the Photoshop preferences Hold down Ctrl-Alt-Shift/

Cmd-Option-Shift while relaunching the program, and click Yes in the alert dialog

To hide or show an individual effect, click its visibility icon

To open the Layer Style dialog, choose an effect from the Add Layer Style menu (or double-click the layer)

Any effect that is already applied to the current layer will have a check mark.

The fx indicates that this layer contains layer effects.

B Click the arrowhead to expand or col-lapse a list of layer effects.

To hide or show all the effects for a layer, click the Effects visibility

icon

A The Layers panel for this image is shown above right: Layer effects are applied to

an image layer that contains transparency;

the underlying layer is solid white.

356 Chapter 21

Applying a shadow effect

You can create a drop shadow or inner shadow with

just a few clicks of the mouse

To apply the Drop Shadow or Inner Shadow

effect:

1 On the Layers panel, double-click next to a layer

name to open the Layer Style dialog.A

2 Click Drop Shadow or Inner Shadow.

3 Choose a Distance value (in pixels) by which

you want to offset a drop shadow from the

origi-nal layer shapes,Bor for the width of an inner

shadow.C–D

➤ You can also change the position of a shadow

by dragging in the document while the dialog

is open, but be aware that this will also

repo-sition any other effects that are using the

Global Light option

Choose a Spread percentage for a Drop Shadow

or a Choke percentage for an Inner Shadow to

control where the shadow begins to fade

Choose an overall Size for the shadow (in pixels).

4 You can also change any of these settings:

Choose a Blend Mode from the menu (For a

drop shadow, we usually keep the default setting

of Multiply.)

To choose a different shadow color, click the

color swatch, then choose a color from the Color

Picker or click a color in the document with the

eyedropper (the new color previews

immedi-ately) Click OK Note: If you change the color for

an inner shadow, you may also want to change

the Blend Mode to Normal

Choose an Opacity percentage for the

transpar-ency level of the shadow (the default value is

75%, but we usually lower it)

Choose an Angle for the angle of the shadow

relative to the original layer shapes

In the Quality area, you can click the Contour

arrowhead and choose a preset from the picker

for the edge profile of the shadow (we’re usually

satisfied with the shape of the default Contour)

Check Anti-aliased to soften any jagged edges

between the shadow and the layer imagery

Adjust the Noise level The addition of noise

(speckling) can help prevent banding on print

output, but a low value is best

A The original image consists of some garden tools on one layer and a background pattern on another layer (we created the pattern via Filter > Render > Clouds).

B The Drop Shadow effect is applied

C The original image consists of editable type on one layer and a blue-gray background pattern on another

D The Inner Shadow effect is applied.

For the Drop Shadow effect, if the layer Fill

opac-ity is below 100% or the layer blending mode

isn’t set to Normal, check Layer Knocks Out

Drop Shadow to prevent the shadow from

show-ing through transparent areas on the layer

5 Click OK If you’re not satisfied with the shape of

the resulting shadow, follow the steps below

➤ To scale the effects on a layer without scaling the

other layer content, right-click the Effects listing

and choose Scale Effects, then specify the desired

Scale percentage in the dialog

Depending on the time of day and the angle of the

sun or another light source, cast shadows are either

short or elongated You can reshape a drop shadow

via the Distort command

To transform a Drop Shadow effect:

1 Apply the Drop Shadow effect (see the preceding

instructions),Aand keep that layer selected

2 To transfer the shadow effect to its own layer,

right-click the Effects listing on the Layers panel,

choose Create Layer(s) from the context menu,

then click OK in the alert dialog, if one appears

3. Click the new Drop Shadow layer.B

4 Choose Edit > Transform > Distort, drag the

han-dles of the transform box to slant the shape, then

press Enter/Return.CFor a symmetrical

perspec-tive distortion, hold down

Ctrl-Alt-Shift/Cmd-Option-Shift as you drag a corner handle Note: If

you don’t see all the handles, press Ctrl-0/Cmd-0

(zero) to enlarge the document window

➤ To limit any painting or fill changes to just the

shadow shape, on the Layers panel, activate the

Lock Transparent Pixels button

➤ To ensure that the image and shadow layers will

move and transform as a unit, Shift-click them,

then click the Link Layers button at the

bottom of the panel

A The original layer has a Drop Shadow effect.

B We clicked the new Drop Shadow layer…

C …then we elongated the shadow.

LAYER OPACITY AND FILL SETTINGS

A quick reminder from the preceding chapter: The

opacity of layer imagery — including any layer

effects — whereas the Fill setting controls only the

opacity of layer imagery — not of layer effects