Adobe 65089063 User Guide - Page 215

ADOBE PHOTOSHOP ELEMENTS 207 User Guide individual pixels in a selection. Within a specified radius, the Maximum and Minimum filters replace the current pixel's brightness value with the greatest or least brightness value of the surrounding pixels. Offset Moves a selection a specified amount horizontally to the right or vertically down, leaving an empty space at the selection's original location. Depending on the size of the selection, you can fill the empty area with a transparent background, with the edge pixels, or with pixels from the right or bottom edges of an image. (See "Defining undistorted areas" on page 191.) Lighting Effects filter The Lighting Effects filter lets you produce myriad lighting effects on RGB images. You can also use textures from grayscale files (called bump maps) to produce 3D-like effects and save your own styles for use in other images. Using the Lighting Effects filter The Lighting Effects filter allows adjustment of light styles, light types, light properties, and a texture channel. To use the Lighting Effects filter: 1 Choose Filter > Render > Lighting Effects, or use the Filters palette to apply the Lighting Effects filter. 2 For Style, choose a style. (See "Choosing a Lighting Effects style" on page 209.) 3 For Light Type, choose a type from the menu. If you're using multiple lights, select and deselect On to turn individual lights on and off. (See "Choosing a Lighting Effects type" on page 208.) 4 To change the color of the light, click the color box in the Light Type section of the dialog box. The color picker chosen in the General Preferences dialog box opens. For information on choosing a color picker, see "Using the Adobe Color Picker" on page 77, or "Using other color pickers" on page 79. 5 To set light properties, drag the corresponding slider for the following options: • Gloss determines how much the surface reflects light (as on the surface of a piece of photographic paper) from Matte (low reflectance) to Shiny (high reflectance). • Material determines whether the light or the object on which the light is cast reflects more light. Plastic reflects the light's color, Metallic reflects the object's color. • Exposure increases the light (positive values) or decreases the light (negative values). A value of 0 has no effect. • Ambience diffuses the light as if it were combined with other light in a room, such as sunlight or fluorescent light. Choose a value of 100 to use only the light source, or a value of -100 to diffuse the light source. To change the color of the ambient light, click the color box and use the color picker that appears. To duplicate a light, Alt-drag (Windows) or Option-drag (Mac OS) the light within the preview window.