In addition to its vector drawing capabilities, ActionScript™ 3.0 includes the ability to create bitmap images or manipulate the pixel data of external bitmap images that are loaded into a SWF. With the ability to access and change individual pixel values, you can create your own filter-like image effects and use the built-in noise functions to create textures and random noise. All of these techniques are described in this chapter.

Contents

• Basics of working with bitmaps
• The Bitmap and BitmapData classes
• Manipulating pixels
• Copying bitmap data
• Making textures with noise functions
• Scrolling bitmaps
• Taking advantage of mipmapping
• Example: Animated spinning moon