Adobe 5.5 Design Standard Manual de usuario descargar pdf (Pagina 86)

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Adobe Creative Suite 5 Printing Guide 84

3D Eects

To edit existing 3D eects, double-click the 3D entry in the Appearance panel. To see

additional controls in the 3D Options dialog, click the More Options buon.

Spot Colors and SVG Filters

While most Live Eects preserve spot color content, SVG Filters (Eect > SVG Filters)

convert spot-color content to the color mode of the document, whether that is CMYK or

RGB. If necessary, remember that all Eects (including SVG lters) can be modied or

deleted via the Appearance panel (Window > Appearance).

If the object is intended to print as four-color process, no additional

measures are necessary. However, if the object uses a spot color, special

handling is required to ensure that the spot color prints as intended.

The option to retain spot color is hidden in the initial view of the 3D

Options dialog box. To access the spot-color option, click the More

Options button in the 3D dialog box. Controls for lighting and spot-

color preservation are displayed at the bottom of the dialog box.

Spot-color 3D Objects

When performing 3D operations on a spot-color object, display the additional options in the

3D dialog box for more controls. To avoid converting spot-color content to CMYK, check the

Preserve Spot Colors option. At rst, the object will appear as black only; for correct display,

activate Overprint Preview (View > Overprint Preview). For output, Illustrator renders a spot-

color 3D object as two elements—a group of black-only objects, set to overprint, and a solid

object lled with the spot color. You must turn on Overprint Preview to view this eect

correctly, and the output device must honor the overprint instruction to image the objects

correctly.

To maintain spot-color content in 3D objects, Illustrator uses overprint.

Essentially, the object is replicated by two separate objectsa solid

object filled with the spot color, plus a grayscale (black only) object

carrying the shading and set to overprint. This arrangement will initially

appear to be black only, until you turn on Overprint Preview (View >

Overprint Preview). Since overprint must be processed for the object to

print correctly in the spot color and black, the RIP must allow PostScript

overprint to be active.

We have used an extruded object as the example, but the same rules

apply to rotated and revolved 3D objects.

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Adobe 5.5 Design Standard Manual de usuario Pagina 86