Flash Tutorial: Learn how to change the glow filter parameters.

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Create Multiple Filters with ActionScript

 

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Step Eight: Glow Filter Parameter Settings

In this section detailed information is given on each of the Glow Filter parameters. This will enable you to set the Filter parameter's correctly. The parameters are set with this section of code:

(0x6699ff,0.6,4,20,3,3,false,true)

Here is what the parameters set:

Distance, Angle, Color, Alpha, Blur X, Blur Y, Strength, Quality, Inner Shadow, Knockout & Hide Object.

Each of these parameters has a default setting and if you are not familiar with the Filter it is often best to start with the default and then edit:

Example: Download both the Flash files Draw 215a & 215b



My Settings


Draw 215a


Default Settings


Draw 215b

Here are my parameter setting compared to the default setting:

Parameter
  My Setting   Default

Color:
 

0x6699FF

  0xFF0000
Alpha:
  0.6   1
Blur X:
  4   6
Blur Y:
  20   6
Strength:
  3   1
Quality
  3   1
Inner
  false   false
Knockout
  true   false

 

Color: 0x000000 to 0xFFFFFF - Default: 0xFF0000
The color of the glow. Valid values are in the hexadecimal format 0xRRGGBB. The default value is 0xFF0000. In many programs color is written as a hexadecimal number. If you are not familiar with hexadecimal numbers they can be a bit tricky but in ActionScript they are always prefixed with Zero Ex and followed by six digits or letters: A Hexadecimal number as written in ActionScript: 0xFF00FF

Note: For more info on setting the color see the Tip below.

Alpha: 0 to 1 - Default = 1
The transparency value of the color. Valid values are 0 to 1. For example, .25 sets a transparency value of 25%. The default value is 1.

Blur X: 0 to 255 - Default = 6
The amount of horizontal blur in pixels. Valid values are from 0 to 255. The default value is 4. Values that are a power of 2 (such as 2, 4, 8, 16, and 32) are optimized to render more quickly than other values.

Blur Y: 0 to 255 - Default = 6
The amount of vertical blur in pixels. Valid values are from 0 to 255. The default value is 4. Values that are a power of 2 (such as 2, 4, 8, 16, and 32) are optimized to render more quickly than other values.

Strength: 0 to 255 - Default: 2
The strength of the imprint or spread. The higher the value, the more color is imprinted and the stronger the contrast between the glow and the background. Valid values are 0 to 255. The default is 2.

Quality: 0 to 15 - Default: 1
The number of times to apply the filter. Valid values are 0 to 15. The default value is 1, which is equivalent to low quality. A value of 2 is medium quality, and a value of 3 is high quality. Filters with lower values are rendered more quickly. For most applications, a quality value of 1, 2, or 3 is sufficient. Although you can use additional numeric values up to 15 to achieve different effects, higher values are rendered more slowly. Instead of increasing the value of quality, you can often get a similar effect, and with faster rendering, by simply increasing the values of blurX and blurY.

Inner: false
Specifies whether the glow is an inner glow. The value true indicates an inner glow. The default is false, an outer glow (a glow around the outer edges of the object).

Knockout: false
Applies a knockout effect (true), which effectively makes the object's fill transparent and reveals the background color of the document. The default is false (no knockout).

Tip: To find the colour code you want look at the color pallet in the Flash tool box:


The hexadecimal code is displayed at the top of the pallet.

Note: Do not write the number as displayed in the color pallet. You need to remove the # and replace it with Zero Ex: 0xff00ff

Case Sensitive: The Ex is case sensitive: 0Xff00ff will result in an error message. For this reason use lower case for the x. Correct syntax: 0xff00ff or 0xFF00FF

Quick Links:    
Bevel Filter:
Info on Parameters Full Tutorial
Blur Filter:
Info on Parameters Full Tutorial

Drop Shadow Filter:

Info on Parameters Full Tutorial
Glow Filter:
Info on Parameters Full Tutorial
Gradient Bevel Filter:
Info on Parameters Full Tutorial
Gradient Glow Filter:
Info on Parameters Full Tutorial
Color Matrix Filter:
Info on Parameters Full Tutorial

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