Corel Painter X3 Win/Mac, EDU, EN Guia do Utilizador descarregar pdf (Página 611)

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588 Corel Painter X3 Getting Started Guide

Gaussian aperture sharpens the red, green, and blue components of color; Circular

aperture sharpens an image based on luminance.

Before (left) and after (right) applying Sharpen.

To sharpen focus

1 To apply the effect to:

• The canvas — Click the Canvas in the Layers panel.

• A selection — Click a selection tool from the toolbox, and drag in the document

window to select an area.

• A layer — Click a layer in the Layers panel.

2 Choose Effects  Focus  Sharpen.

3 In the Sharpen dialog box, enable an aperture option.

4 Use the following guidelines to adjust the sliders:

• Amount — determines how much of the edge of an element is affected

• Highlight — determines the intensity of the bright areas. Move the slider to the

right to brighten the highlights.

• Shadow — determines the depth of the shadows. The higher the percentage, the

darker the shadows.

If you chose the Gaussian aperture option and you want to sharpen only selected

colors, enable any combination of the Red, Green, or Blue check boxes.

Softening focus

The Soften and Super Soften effects increase the transition from one part of an image

to another by enhancing the anti-aliasing of the brushstrokes. You can apply the Soften

effect to images by using either the Gaussian or Circular aperture options. The

Gaussian aperture is useful for creating smooth, optical blurs or defocusing; the

Circular aperture is useful for creating shadow maps cast by a circular light source like

the sun.

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