[away3d] PhongBitmapMaterial in Away3D 4.0

[iiley Chen]

Hi,

Broomstick Rocks!! I have a simple game now is in porting to
Broomstick/FlashPlayer11 to get Hardware acceleration. Everything
works fine now, but just i am new to 3D.
I have used PhongBitmapMaterial in old version Away3D, and that is the
effect i need. I create the light by:
        var dl:DirectionalLight3D = new DirectionalLight3D();
        dl.ambient = 0.3; //Note that there is no such property in broomstick
now, what can i do to replace?
        dl.diffuse = 0.5;
        dl.specular = 0.5;
Create the material by:
        var pbm:PhongBitmapMaterial = new
PhongBitmapMaterial(img.bitmapData);
        pbm.shininess = 55;
But i can not find how to implement PhongBitmapMaterial in Away3D 4.0,
i see there is material methods package, but they are hard to
understand, any tips will be helpful.

Thanks very much!