Adobe After Effects CS3 Manual de usuario descargar pdf (Pagina 459)

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AFTER EFFECTS CS3

User Guide

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3 Adjust the Blur Matte value to soften the matte and to produce a softer transition between the affected and

unaffected areas of the image.

4 If you’re using both a color matte and a layer mask, choose one of the following from the Combine Match And

Mask Using menu:

Screen Makes the matte white wherever either the mask or the color match is white.

Multiply Makes the matte white where both of the inputs are white.

5 Reduce the Amount value to let more of the original image show through the grain.

6 Choose Final Output from the Viewing Mode control.

Generate a color-matching matte

When a grain effect is first applied, a neutral gray color is used to generate a default color-matching matte, so that in

most images a visible matte appears. The Color Matching group of controls uses color matching to precisely define

amatte.Thematteisolatesportionsoftheimagewherethelayerthatusesthegraineffectisblendedwiththeinput.

1 Apply a grain effect to the image.

2 To select a color to exclude from or restrict to the effect, do one of the following adjacent to the Matching Color

control in the Blend With Original and Color Matching controls groups:

• Click the color swatch and select a color in the Color Picker dialog box.

• Click the eyedropper and click a color anywhere on-screen.

3 Do one of the following:

• To prevent the grain effect from affecting the selected color, make sure that the Invert Match control is deselected.

• To restrict the grain effect to the selected color, leaving the rest of the image unaffected, select Invert Match.

4 Ifyouwanttoexcludecolorsthataresimilartothematchingcolor,increasetheMatchingTolerancevalue,which

sets a threshold for color matching. As the value increases, the matte includes pixels with colors increasingly different

from the matching color.

5 Choose an option from the Match Color Using control if you want to change the default criterion (RGB) used to

determine that a color is similar to the matching color.

6 Adjust the Matching Softness controls to determine the width of the transition band between completely matched

and completely unmatched pixels or how smoothly the affected areas blend with the original image.

7 Select Invert Match if you want to invert the matte so that the white areas become black and the black areas

becomewhite.(Thematchingcolorwillbeblackinthematteandwillbeprocessedbythegraineffectregardlessof

the Amount setting. The inversion doesn’t affect any other settings.)

8 If you’re using both a color matte and a layer mask, choose one of the following from the Combine Match And

Mask Using menu:

Screen Makes the matte white wherever either the mask or the color match is white.

Multiply Makes the matte white where both of the inputs are white.

9 Choose Final Output from the Viewing Mode control.

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Adobe After Effects CS3 Manual de usuario Pagina 459

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