Repeat this process for the large star, removing its stroke but this time setting the fill color to white (RGB R=255, G=255, B=255). One of the strengths of raster files is the ability to capture detailed graphics and high-quality photographs taken from. The raster file format, along with vector, is one of the main two file types used for digital images. Learn more about how they work, what they’re used for, and their pros and cons. Now bring the fill square forward and set the fill color to a dark grey (for example, enter an RGB value of R=77, G=77, B=77). Raster image files use pixels to display high-quality photos and graphics. Select the small star, bring the stroke square forward (if necessary) and then remove the stroke by clicking the white box with the red line through it, found in the bottom left of the color panel. Clicking either square brings it to the front, allowing you to change the color of that attribute. You’ll see two boxes in the top left, which represent the color of the fill (the solid square) and the stroke (the square with the square hole in it). Choose Window -> Color to call up the fill and stroke color panel. Now you’ll need to set to color for each star. The printing and prepress industries know raster graphics as contones (from continuous tones ). Raster images are stored in image files with varying dissemination, production, generation, and acquisition formats. You’ll see a small star sitting atop the original large one. A raster is technically characterized by the width and height of the image in pixels and by the number of bits per pixel. You probably know that such sites as Shutterstock or Istockphoto do not accept vector works that have raster images or objects to which the raster effects.
Click Uniform, enter 25% and then click OK. A Scale window appears, allowing you to precisely scale the object you’ve just pasted. This pastes a copy of the star on top of the existing star, and for the moment, it’ll look as though there is still only one star on your canvas. Select the star and then choose File -> Copy, followed by File -> Paste in Place. Enter Radius 1: 800, Radius 2: 420 and Points: 5, and then click OK.) (Or, choose the Star Tool and click the center of the canvas. This can be accomplished in a number of ways-standard gradients, gradient meshes and blends-but for now, let’s create a blend with a star-shaped object.Ĭhoose the Star Tool from the toolbar-you’ll find it in the same place as the Rectangle Tool-and create a star shape that fills most of the document. You’ll now need to create a simple object with a greyscale gradient. Setting a relatively high resolution for the document’s raster effects allows you to get better results when tracing your halftone.
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