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Flash - Black and white image as mask

mediapanderer
on
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Last Modified: 2011-10-03
In Flash (CS3), I want to have a black and white bitmap be a mask for a movie clip.  How do I do this?

Thanks!
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Antonio EstradaEngineering Manager / Architect
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Commented:
I'm unsure if Flash CS3 has this option but there's no reason for not having it.

In Flash 8 it's as follows:

1. Import your image to the stage (Ctrl+R).
2. Select your imported bitmap.
3. Go to the Modify menu -> Bitmap -> Trace bitmap.
4. Depending on how much detail you want, change around the options. If you want full detail use this:
    a) Color threshold: 1
    b) Minimum area: 1
    c) Curve fit: Very Smooth
    d) Corner threshold: Many Corners
5. It will probably take a bit if it's too detailed, once it's finished, it'll be turned into a Shape.
6. Select either the black or white bits of the image (just click on them) and delete them.
7. Voilá, you have a Shape that you can now use as a mask.

Hope this helps, there shouldn't really be much trouble porting this to CS3, it must be almost identical.

Good Luck.

-V

Author

Commented:
Thanks for that idea!  Although the source image has gradients and blurs in it (key part of the mask effect).

Thoughts?
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Author

Commented:
PERFECT Graphixer!  Thanks!!!!
Antonio EstradaEngineering Manager / Architect
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Commented:
Nice one Graphixer :)

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