# Movie clips contents alpha at different rate during Tween class tween

**URL:** https://forum.kirupa.com/t/movie-clips-contents-alpha-at-different-rate-during-tween-class-tween/305842
**Category:** Uncategorized
**Created:** [March 4, 2010, 1:17pm UTC](https://forum.kirupa.com/t/movie-clips-contents-alpha-at-different-rate-during-tween-class-tween/305842 "2010-03-04T13:17:46Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![natronp](https://avatars.discourse-cdn.com/v4/letter/n/87869e/32.png) [@natronp](https://forum.kirupa.com/u/natronp)
#### Post date: [March 4, 2010, 1:17pm UTC](https://forum.kirupa.com/t/movie-clips-contents-alpha-at-different-rate-during-tween-class-tween/305842/1 "2010-03-04T13:17:46Z")

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This behavior has driven me crazy in the past.

If i have a clip with a bunch of stuff inside it (on layers) like other clips, bitmaps, etc. and perform a tween on that clip (via tween class), the stuff inside the clip seems to alpha at different rates.

For instance, i have a clip with an empty movieclip which loads a bitmap image and on top of the bitmap image, i have a gradient feathered edge (.png) bitmap and on top of that I have some dynamic text (embedded fonts).

The bitmap is supposed to create a feathered edge on the photo but since they alpha at different rates, you always see the hard edge of the photo…

is there a solution like cacheAsBitmap which would let the whole clip alpha at once? If it’s cacheAsBitmap, i must be using it incorrectly, b/c it’s not working!