On 03/09/2010 13:32, George Jones wrote:
Hi;
I think I've done my homework on this, but I can find no answers. Is it possible, using
BitmapData, to make part--and only part--of a bitmap transparent? I'm presuming the
answer is "no". If that is the case, would you be so kind as to inform me so
that I quit beating my head against the wall? I've asked the following question on about
5 forums and nobody has answered it, which I presume means it's over most people's
heads...but certainly not this list. The net effect which I'm trying to create is
programmically created fire that burns over a background image I select. What I now have
is such fire over a black background (or any other color I choose), not over a jpg, for
example.
I'm trying to tweak a script I found online to work for my application.
The problem I am having is to make a certain part of the bitmap that
is created by code transparent...but only a certain part of it. The
code has the following:
_fire = new BitmapData(865, 92, false, 0xffffff);
Note
the alpha flag must be set to false, which is the source of my problem,
It certainly is. Bitmaps aren't transparent unless the flag is set to
true. You are wasting your time trying to make bits of an opaque bitmap
transparent.
Paul
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