Using blend modes

To apply a shader of the Stdpx library, you must use the DisplayObject.blendShader property of any display object.
All available blend modes are in the stdpx.blendmodes.* package.

You have two ways to access a stdpx blend mode : (examples below assume myDisplayObject is a DisplayObject instance)

• by creating an instance of a blend mode class :

import stdpx.blendmodes.*;
// Applies a blend mode Saturation to myDisplayObject
myDisplayObject.blendShader = new BlendModeSaturation();

• by accessing the blend mode through the stdpx.blendmodes.StdpxBlendMode or the stdpx.blendmodes.FlashBlendMode static classes.
  The former wraps new blend modes that are not available natively in Flash Player.
  The latter wraps existing blend modes in Flash. The FlashBlendMode class exists only for compatibility. However, they use hardware while Flash Player ones use software. Consider it when choosing between Flash Player blend modes and thoses from the stdpx.blendmodes.FlashBlendMode class.

Class	Description
stdpx.blendmodes.StdpxBlendMode	New blend modes not previously in flash
stdpx.blendmodes.FlashBlendMode	All legacy blend modes of Flash

import stdpx.blendmodes.StdpxBlendMode;
// Applies a blend mode Saturation to myDisplayObject
myDisplayObject.blendShader = StdpxBlendMode.SATURATION;

This way is more intuitive and faster to write, however you cannot specify parameters to the blend mode (not a bad news since there is no parameters for blend modes yet).

That’s it for blend modes with Stdpx.