# How is this flash done?

**URL:** <https://forum.kirupa.com/t/how-is-this-flash-done/222010>\
**Category:** flash\
**Created:** [April 10, 2007, 4:56am UTC](https://forum.kirupa.com/t/how-is-this-flash-done/222010 "2007-04-10T04:56:39Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![panzooka](https://avatars.discourse-cdn.com/v4/letter/p/a87d85/32.png) [@panzooka](https://forum.kirupa.com/u/panzooka)\
**Post date:** [April 10, 2007, 4:56am UTC](https://forum.kirupa.com/t/how-is-this-flash-done/222010/1 "2007-04-10T04:56:39Z")

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if you look at [http://au.playstation.com](http://au.playstation.com/) and check out the amazing background it has!

Well i know how to place flash background, i know how color changing works, but how does the flash draw the randomly curved lines with gradient, and moves up and down?

here is the link to the background flash [http://au.playstation.com/assets/flash/background.swf](http://au.playstation.com/assets/flash/background.swf)

as far i can tell, the lines are done purely in action script, because the whole thing is only 47kb

any one got any idea?