Image programming in actionscript3 games)

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4.3.6 matrix mathematics in colormatrix

Colormatrix is a subclass of dynamicmatrix. It is fixed as soon as it is initialized: 5*5 (why not 5*4? I believe this problem does not need to be explained again ), and fill in the unit matrix data:

 

 

This class has five methods. The first four correspond to the brightness, contrast, saturation, and hue attributes of adjustcolor, and the last one is getflatarray, its only function is to convert the valid data in the matrix (5*4) into an array of 20 for the colormatrixfilter parameter to call.

 

Next let's take a look at the four matrix computing functions corresponding to adjustcolor.

 

 

Image programming in actionscript3 games)