# SWF optimization - heavy graphics

**URL:** https://forum.kirupa.com/t/swf-optimization-heavy-graphics/290801
**Category:** flash
**Created:** [June 19, 2009, 7:25pm UTC](https://forum.kirupa.com/t/swf-optimization-heavy-graphics/290801 "2009-06-19T19:25:56Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![BoppreH](https://avatars.discourse-cdn.com/v4/letter/b/dbc845/32.png) [@BoppreH](https://forum.kirupa.com/u/BoppreH)
#### Post date: [June 19, 2009, 7:25pm UTC](https://forum.kirupa.com/t/swf-optimization-heavy-graphics/290801/1 "2009-06-19T19:25:56Z")

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I’m coding games that come with the graphics done. Unfortunately the designer has some bad practices, such as not using Sprite symbols - never.

And the files have dozens (even hundreds) of symbols in the library, very few of them with any animation.

I would like to re-brand such symbols as Sprite to save some CPU (and maybe even kB), but my graphics-related skills are very low.

Where should I start? Check and convert the symbols at authoring time or it’s possible to do this at runtime? Can I effectively convert a MovieClip to Sprite (I’m guessing casting to sprite won’t help much) or another light image type?