The easiest answer, as far as I know, is that "alpha" is a property of
the material (both physically and virtually speaking...), not a
property of the geometry. So, it makes sense that to define alpha you
use a material, doesn't it? :)



On 18 abr, 06:59, Julien <[email protected]> wrote:
> Hi all !
> What i would like to do is quite simple but i didn't found an easy way
> to do it.
>
> I have an 3Dobject with a material on it and i would like to change
> some of the faces alpha level.
>
> Right now, to do that, i have to do :
> var mat:BitmapMaterial  = new BitmapMaterial(params...);
> mat.alpha = 0.5;
> object.faces[12].material = mat;
>
> But this is long and not clean way.
> Is there any solution to get something close to this :
> object.faces[12].alpha = 0.5;
>
> I bet that there is an explanation why we can't do the above solution.
>
> Thank you for your time.

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