You can view the previous version here.
The latest version can be viewed here.

I’m very happy with that, but there’s one little problem. I started to notice a very ugly black border around redrawn PNG transparency (which happens when the animation is pre-renderd).

Result without redrawing bitmap (aka: real time rendering)

Result when redrawing the bitmap (aka pre-rendering)

I have no clue what is going on… I have been looking into this issue all day, to no avail… If anyone knows what is going on, feel free to enlighten me.

The PNG file is fine, it’s not corrupt or badly exported, since it works just fine in different versions of the render engine. I do however wonder if redrawing a bitmap over and over again doesn’t create some kind of noise.

If you feel like giving it a shot you can download the .as file here, or get the complete Flash project (.fla + .as + assets) here. (The code is quite messy… Just so you know )
If anyone can point me into the right direction, your help would be much appreciated (and you shall be remembered forever)!

To illustrate the difference I uploaded 2 more versions.
Check out the previous version here (longer render time, but no PNG problem).
See the latest version here (using the faster implementation, generating very ugly black borders).

Edit: You can download the sources for V9 and V10 here to see the difference of the result.