ACTIONSCRIPT 3 Developer’s Guide en

Chapter 15: Working with Pixel Bender
shaders
Flash Player 10 and later, Adobe AIR 1.5 and later
Adobe Pixel Bender Toolkit allows developers to write shaders that create graphical effects and perform other image
and data processing. The Pixel Bender bytecode can be executed in ActionScript to apply the effect to image data or
visual content. Using Pixel Bender shaders in ActionScript gives you the capability to create custom visual effects and
perform data processing beyond the built-in capabilities in ActionScript.
Note: Pixel Bender support is available starting in Flash Player 10 and Adobe AIR 1.5. Pixel Bender blends, filters, and
fills are not supported under GPU rendering.
More Help topics
Adobe Pixel Bender Technology Center
Pixel Bender Developer's Guide
Pixel Bender Reference
flash.display.Shader
flash.filters.ShaderFilter
Pixel Bender basics for Flash
Pixel Bender basics for Flex
Basics of Pixel Bender shaders
Flash Player 10 and later, Adobe AIR 1.5 and later
Adobe Pixel Bender is a programming language that is used to create or manipulate image content. Using Pixel Bender
you create a kernel, also known as a shader. The shader defines a single function that executes on each of the pixels of
an image individually. The result of each call to the function is the output color at that pixel coordinate in the image.
Input images and parameter values can be specified to customize the operation. In a single execution of a shader, input
and parameter values are constant. The only thing that varies is the coordinate of the pixel whose color is the result of
the function call.
Where possible, the shader function is called for multiple output pixel coordinates in parallel. This improves shader
performance and can provide high-performance processing.
In ActionScript, three types of effects can be easily created using a shader:
drawing fill
blend mode
filter
Last updated 6/6/2012
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