# Masking

**URL:** <https://forum.kirupa.com/t/masking/176227>\
**Category:** Uncategorized\
**Created:** [January 21, 2006, 8:37pm UTC](https://forum.kirupa.com/t/masking/176227 "2006-01-21T20:37:47Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![teclas](https://avatars.discourse-cdn.com/v4/letter/t/a88e4f/32.png) [@teclas](https://forum.kirupa.com/u/teclas)\
**Post date:** [January 21, 2006, 8:37pm UTC](https://forum.kirupa.com/t/masking/176227/1 "2006-01-21T20:37:47Z")

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Hello!

I have an issue with masking in flash mx 2004…

thing is… i want to use an image(.png or .gif) created in photoshop to work as a mask to other images but is doesn’t work…

so… let’s say i want to set a grunge mask on pictures… its hard to do a grunge effect on flash because the brushes are not the best…

so i do the mask with a transparent background on photoshop and then i upload it to library on flash

i go to mask layer and i use the mask image from library but when i try out the movie mask doesn’t work or it assumes the full size of the rectangule instead of using the grunge effect i made with TRANSPARENT background for masking to work!

Can anyone help me with this?