Adobe Pixel Bender Cookbook

Recent Recipes Latest recipes on Pixel Bender

• Adding beginGradientFill(), beginShaderFill(), lineBitmapStyle(), lineGradientStyle() and lineShaderStyle() to the DataDrawingCanvas for Charts
  • Karl Sigiscar 
  •   June 24, 2011
  • Not yet rated
  
  

  Problem

  DataDrawingCanvas from Ely Greenfield does have beginFill() and beginBitmapFill(), but misses beginGradientFill() and beginShaderFill(). Same with the CartesianDataCanvas and PolarDataCanvas present in Flex since SDK 3.0 which are derived from it.

  Solution

  Modify the DataDrawingCanvas and OpCode classes. Add the BEGIN_GRADIENT_FILL, BEGIN_SHADER_FILL, LINE_BITMAP_STYLE, LINE_GRADIENT_STYLE and LINE_SHADER_STYLE constants to the OpCode class. Modify the collectValues() and render() methods implementation to use them. Add the beginGradientFill(), beginShaderFill(), lineBitmapStyle(), lineGradientStyle() and lineShaderStyle() methods in the DataDrawingCanvas class.

• Vector class: creating typed array lists in ActionScript 3.0
  • Jhonatan Rosa Jacinto 
  •   October 11, 2010
  • Avg. rating 5.00
  
  

  Problem

  In some situations we need to be sure whether the correct type of data has been passed within an array list for an argument of a method or has been received from a specific function.

  Solution

  Using the Vector class we can specify which type of data will be accepted in our list, allowing the insertion if only the type required was matched.

• Date manipulation and various operations
  • Virat Patel 
  •   June 7, 2010
  • Avg. rating 4.50
  
  

  Problem

  Though this is not necessarily for a specific problem, I have created a class through which we can make some operations on given date like add days, add seconds or find the difference between two dates by day,hour,min & sec etc..

  Solution

  I have create a class and sample code for various operations.

• How to do linear algebraic matrix multiplication, A * B in pixel bender?
  • Kevin Goldsmith 
  •   January 19, 2010
  • Not yet rated
  
  

  Problem

  I want to create a pixel bender script that does this (linear algebraic multiplication) on 2 matrices: for (j=0;j<$rows;j++) { for (k=0;k<$columns;k++) { for (s=0;s<m2.$rows;s++) $m[j][k] += m1.$m[j][s]*m2.$m[s][k]; } } } }

  Solution

  Matrix math is built into Pixel Bender.

• Enumerating Pixel Bender filter parameters and metadata dynamically in Flash
  • Kevin Goldsmith 
  •   January 13, 2010
  • Not yet rated
  
  

  Problem

  Once you create a Pixel Bender Shader object, how do you find out what metadata and properties are associated with it?

  Solution

  This recipe shows how to walk the parameters and metadata of a shader object.