Have you tried just applying the filter to the movieclip that the bitmapdata
object is attached to rather than using applyFilter?

On 7/8/06, Dan Rogers <[EMAIL PROTECTED]> wrote:

Yesterday, I posted this topic regarding the inversion of a bitmap
alpha channel, but the root of the problem is that I am trying to
find a workaround for the GlowFilter knockout effect.

For some reason, when I programatically apply a GlowFilter to a
BitmapData object, and pass inner = false, with knockout = true, I
get this bizarre zebra effect....  I've provided code and a link to a
side by side comparison screenshot.

Here is an example of the code I am using:

var filter = new GlowFilter(0xFFFFFF, 1, 5, 5, 5, 1, false, true);
myBitmap.applyFilter(myBitmap, myBitmap.rectangle, new Point(0, 0),
filter);

Following is a screen shot of the issue.  The left side is the result
when simply using the GlowFilter without passing inner or knockout,
and the right side is the strange zebra effect I get when I use the
above code.

http://download.danro.net/flashcoders/glowfilter_bug.jpg

Has anyone else dealt with this?

-Danro


On Jul 7, 2006, at 3:29 PM, Dan Rogers wrote:

> Hi gang,
>
> I am trying to invert the alpha channel of a BitmapData object and
> destructively apply it to another bitmap using copyPixels.  Has
> anyone inverted an alpha channel on a bitmap?  I assume use
> applyFilter with ColorMatrixFilter, but I am not very swift in
> figuring out the correct color matrix settings to use.
>
> Thanks,
> -Danro
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