Language Version : | ActionScript 3.0 |
Player Version : | Flash Player 9 |
A class that provides constant values for visual blend mode effects. These constants are used in the following:
- The
blendMode
property of the flash.display.DisplayObject class.
- The
blendMode
parameter of the draw()
method of the
flash.display.BitmapData class
public static const ADD:String = "add"
Language Version : | ActionScript 3.0 |
Player Version : | Flash Player 9 |
Adds the values of the constituent colors of the display object to the colors of its background, applying a
ceiling of 0xFF. This setting is commonly used for animating a lightening dissolve between
two objects.
For example, if the display object has a pixel with an RGB value of 0xAAA633, and the background
pixel has an RGB value of 0xDD2200, the resulting RGB value for the displayed pixel is
0xFFC833 (because 0xAA + 0xDD > 0xFF, 0xA6 + 0x22 = 0xC8, and 0x33 + 0x00 = 0x33).
public static const ALPHA:String = "alpha"
Language Version : | ActionScript 3.0 |
Player Version : | Flash Player 9 |
Applies the alpha value of each pixel of the display object to the background.
This requires the blendMode
property of the parent display object be set to
flash.display.BlendMode.LAYER
.
public static const DARKEN:String = "darken"
Language Version : | ActionScript 3.0 |
Player Version : | Flash Player 9 |
Selects the darker of the constituent colors of the display object and the colors of the background (the
colors with the smaller values). This setting is commonly used for superimposing type.
For example, if the display object has a pixel with an RGB value of 0xFFCC33, and the background
pixel has an RGB value of 0xDDF800, the resulting RGB value for the displayed pixel is
0xDDCC00 (because 0xFF > 0xDD, 0xCC < 0xF8, and 0x33 > 0x00 = 33).
public static const DIFFERENCE:String = "difference"
Language Version : | ActionScript 3.0 |
Player Version : | Flash Player 9 |
Compares the constituent colors of the display object with the colors of its background, and subtracts
the darker of the values of the two constituent colors from the lighter value. This setting is commonly
used for more vibrant colors.
For example, if the display object has a pixel with an RGB value of 0xFFCC33, and the background
pixel has an RGB value of 0xDDF800, the resulting RGB value for the displayed pixel is
0x222C33 (because 0xFF - 0xDD = 0x22, 0xF8 - 0xCC = 0x2C, and 0x33 - 0x00 = 0x33).
public static const ERASE:String = "erase"
Language Version : | ActionScript 3.0 |
Player Version : | Flash Player 9 |
Erases the background based on the alpha value of the display object. This process requires
that the blendMode
property of the parent display object be set to
flash.display.BlendMode.LAYER
.
public static const HARDLIGHT:String = "hardlight"
Language Version : | ActionScript 3.0 |
Player Version : | Flash Player 9 |
Adjusts the color of each pixel based on the darkness of the display object.
If the display object is lighter than 50% gray, the display object and background colors are
screened, which results in a lighter color. If the display object is darker than 50% gray,
the colors are multiplied, which results in a darker color.
This setting is commonly used for shading effects.
public static const INVERT:String = "invert"
Language Version : | ActionScript 3.0 |
Player Version : | Flash Player 9 |
Inverts the background.
public static const LAYER:String = "layer"
Language Version : | ActionScript 3.0 |
Player Version : | Flash Player 9 |
Forces the creation of a transparency group for the display object. This means that the display
object is precomposed in a temporary buffer before it is processed further. The precomposition is done
automatically if the display object is precached by means of bitmap caching or if the display object is
a display object container that has at least one child object with a blendMode
setting other than "normal"
.
public static const LIGHTEN:String = "lighten"
Language Version : | ActionScript 3.0 |
Player Version : | Flash Player 9 |
Selects the lighter of the constituent colors of the display object and the colors of the background (the
colors with the larger values). This setting is commonly used for superimposing type.
For example, if the display object has a pixel with an RGB value of 0xFFCC33, and the background
pixel has an RGB value of 0xDDF800, the resulting RGB value for the displayed pixel is
0xFFF833 (because 0xFF > 0xDD, 0xCC < 0xF8, and 0x33 > 0x00 = 33).
public static const MULTIPLY:String = "multiply"
Language Version : | ActionScript 3.0 |
Player Version : | Flash Player 9 |
Multiplies the values of the display object constituent colors by the constituent colors of
the background color, and normalizes by dividing by 0xFF,
resulting in darker colors. This setting is commonly used for shadows and depth effects.
For example, if a constituent color (such as red) of one pixel in the display object and the
corresponding color of the pixel in the background both have the value 0x88, the multiplied
result is 0x4840. Dividing by 0xFF yields a value of 0x48 for that constituent color,
which is a darker shade than the color of the display object or the color of the background.
public static const NORMAL:String = "normal"
Language Version : | ActionScript 3.0 |
Player Version : | Flash Player 9 |
The display object appears in front of the background. Pixel values of the display object
override the pixel values of the background. Where the display object is transparent, the
background is visible.
public static const OVERLAY:String = "overlay"
Language Version : | ActionScript 3.0 |
Player Version : | Flash Player 9 |
Adjusts the color of each pixel based on the darkness of the background.
If the background is lighter than 50% gray, the display object and background colors are
screened, which results in a lighter color. If the background is darker than 50% gray,
the colors are multiplied, which results in a darker color.
This setting is commonly used for shading effects.
public static const SCREEN:String = "screen"
Language Version : | ActionScript 3.0 |
Player Version : | Flash Player 9 |
Multiplies the complement (inverse) of the display object color by the complement of the background
color, resulting in a bleaching effect. This setting is commonly used for highlights or to remove black
areas of the display object.
public static const SUBTRACT:String = "subtract"
Language Version : | ActionScript 3.0 |
Player Version : | Flash Player 9 |
Subtracts the values of the constituent colors in the display object from the values of the background
color, applying a floor of 0. This setting is commonly used for animating a darkening dissolve between
two objects.
For example, if the display object has a pixel with an RGB value of 0xAA2233, and the background
pixel has an RGB value of 0xDDA600, the resulting RGB value for the displayed pixel is
0x338400 (because 0xDD - 0xAA = 0x33, 0xA6 - 0x22 = 0x84, and 0x00 - 0x33 < 0x00).
© 2004-2007 Adobe Systems Incorporated. All rights reserved.
Tue Mar 18 2008, 12:59 PM GMT-07:00