Change alphaData More Than Once?

[Chipp Walters]

Hi Scott,

I have previously documented this and posted a basic work-around. I have a
stack at my site, or you can just:

open stack URL "http://www.altuit.com/webs/altuit2/RunRev/testComposite.rev"

best,

Chipp

> It seems you can set the alphaData of a target image to the alphaData of
> another image.  Very nice.  But it also seems that setting the
> alphaData of
> the target image to anything else after that point causes the image to
> display incorrectly.  Also, if I store the original alphaData of
> the target
> image and then try to set the alphaData of the target image back
> to what it
> was, this process seems to fail.  Do I need to update the image
> somehow?  Is
> this problem simply due to formatting of the alphaData data, or is it
> impossible to change the alphaData of an image once it has been set to
> something else?
>
> Thanks & Regards,
>
> Scott Rossi