19 Patterns

1. Use the rectangle marquee tool on any open image to select an area to use as a pattern. Feather must be set to 0 px. Note that large images may become unwieldy.
2. Choose Edit > Define Pattern.
3. (Photoshop) Enter a name for the pattern in the Pattern Name dialog box.
   
   Note: If you are using a pattern from one image and applying it to another, Photoshop converts the color mode.

1. Choose File > Open. Each preset file in the PostScript Patterns folder (which comes with Photoshop) contains a single pattern in the Adobe Illustrator format. You can scale and render these patterns at any resolution.
2. Select the pattern file you want to use, and click Open.
3. Select any rasterizing options. (See Opening and importing images.)
4. Make a rectangular selection around the pattern, or make no selection to use the whole image.
5. Choose Edit > Define Pattern.
6. (Photoshop) Enter a name for the pattern in the Pattern Name dialog box.

Using the Pattern Maker

The Pattern Maker lets you create an infinite variety of patterns based on a selection or the contents of the Clipboard. Because the pattern is based on the pixels in a sample, it shares visual characteristics with the sample. For example, if you sample an image of grass, the Pattern Maker generates a tileable pattern that is different from the sample but still appears to be grass.You can generate multiple patterns from the same sample, and save pattern tiles as preset patterns for future use in Photoshop and ImageReady.

Note: The Pattern Maker command is available only for 8-bit images in RGB Color, CMYK Color, Lab Color, and Grayscale image modes.

Generating patterns

The Pattern Maker generates patterns by rearranging the pixels in a sampled area to create a tile. The size of a tile can vary, from 1 pixel by 1 pixel to the dimensions of the active layer. If the tile is smaller than the active layer, the pattern is made up of multiple tiles that are laid out in a grid to fill the layer. If the tile is the same size as the active layer, it comprises the entire pattern.

Original image. Pixels in selected area are sampled to create a tile.

Generated pattern: A. Single tile B. Tiled pattern

Note: If the transparency of the active layer is locked, the Pattern Maker does not change the transparency of the layer when it tiles with a generated pattern.

To generate a pattern:

1. Do one of the following:
   • Select the layer that contains the area from which you want to generate the pattern. The layer you select will be replaced by the generated pattern, so it's a good idea to make a copy of the layer first.
   • To generate a pattern in a new layer or file, select the pixels from which you want to generate the pattern, and choose Edit > Copy. Then add a layer to the image, or create a new file with the dimensions you want the final image to have.
     
     Note: You cannot generate a pattern from a non-rectangular sample. If you make a non-rectangular selection, Photoshop uses the bounding box of the selected area to create a rectangular sample.
     
2. Choose Filter > Pattern Maker.
3. Do one of the following:
   • If you are generating a pattern in the same layer that contains the sample, select the rectangular marquee tool in the Pattern Maker dialog box, and select the area from which you want to generate the pattern. To move the selection marquee, drag it to a different location.
   • If you are generating a pattern in a new layer or file, select Use Clipboard as Sample in the Pattern Maker dialog box.
4. Specify the dimensions of tiles in the generated pattern by doing one of the following:
   • Enter pixel values in the Width and Height text boxes, or drag the pop-up sliders.
   • Click Use Image Size to use the image size as the tile size. Selecting this option produces a pattern with a single tile.
5. To offset the tiles in the generated pattern, choose a direction from the Offset pop-up menu and specify an offset amount by entering a value in the Amount text box or dragging the Amount pop-up slider. The offset amount is a percentage of the tile dimension in the specified direction.
6. Click Generate. The preview area is tiled with the generated pattern.
   
   You can view the status of the current generation in the Photoshop status bar. Press Esc to cancel the generation.
   
7. Click Generate Again to generate additional patterns using the same options, or adjust the options and then click Generate Again.
   
   You can navigate through the generated tiles using the Tile History panel. (See Reviewing tiles and pattern previews.)
   
8. When you are satisfied with a pattern preview and you have saved the tiles that you might want to use in the future, click OK.

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