# Question about Filter Effects tutorial?

**URL:** https://forum.kirupa.com/t/question-about-filter-effects-tutorial/174150
**Category:** flash
**Created:** [January 3, 2006, 8:51am UTC](https://forum.kirupa.com/t/question-about-filter-effects-tutorial/174150 "2006-01-03T08:51:26Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Phogasmic](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/phogasmic/32/2045_2.png) [@Phogasmic](https://forum.kirupa.com/u/Phogasmic)
#### Post date: [January 3, 2006, 8:51am UTC](https://forum.kirupa.com/t/question-about-filter-effects-tutorial/174150/1 "2006-01-03T08:51:26Z")

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I am a noob to Actionscript. I was doing the Flash 8 Filter Effects tutorial located here [http://www.kirupa.com/developer/flash8/filter\_effects.htm](http://www.kirupa.com/developer/flash8/filter_effects.htm). It is a very good tutorial and it works great. I am determined to know why it works though so I read through each line of code. There is one line I do not understand the purpose of

it is  
\<code\> this.filters = [gf]; \</code\>

it comes right after the rollover event, I am confused because it seems like the filter was called by the kText movie clip. In the beginning of the movie.  
Like I said I am a noob its probably a obvious reason, could someone point it out to me please.