# Video background with screen blending mode doesn't work on Mac

**URL:** <https://forum.kirupa.com/t/video-background-with-screen-blending-mode-doesnt-work-on-mac/307244>\
**Category:** flash\
**Created:** [March 31, 2010, 9:35am UTC](https://forum.kirupa.com/t/video-background-with-screen-blending-mode-doesnt-work-on-mac/307244 "2010-03-31T09:35:13Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dvvandevelde](https://avatars.discourse-cdn.com/v4/letter/d/e47c2d/32.png) [@dvvandevelde](https://forum.kirupa.com/u/dvvandevelde)\
**Post date:** [March 31, 2010, 9:35am UTC](https://forum.kirupa.com/t/video-background-with-screen-blending-mode-doesnt-work-on-mac/307244/1 "2010-03-31T09:35:13Z")

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Hi,

I’ve included a small videoclip in my flash animation, it’s embedded in a MovieClip with a “Screen” blending mode to make the black background transparent, it works perfectly in the flash IDE and online when viewed from a PC, however on a Mac, the blending mode isn’t working at all and a black square is visible ruining the effect I want to achieve! Because I haven’t got a Mac, it’s difficult for me to test the result (the client gave me that feedback:puzzled:).

Up to now, I’ve found a tricky solution consisting in converting my video sequence in a sequence of png images and replace the video in the MovieClip with that images sequence, the blending works then both on pc or Mac, but I found this solution not very handy and then would like to know if anybody’s got a better solution for me??

You can preview the flash animation with the blending problem here :  
[http://bit.ly/bwprwf](http://bit.ly/bwprwf)

Thanks in advance for your help!