[away3d] Dot3BitMapMaterial & tinted DirectionalLight3D poblem

[MarkC]

Now I finally have my Dot3BitMapMaterial working (thanks Fabrice) I
have hit another problem...

I am using a DirectionalLight3D to illuminate you Moon sphere, here it
is with the default white light colour applied:

http://groups.google.com/group/away3d-dev/web/Capture_White.jpg

If I change the .color of the directional light (in this case I have
set it to 0xFF00D0 - which is a bright purple/magenta colour) then two
unexpected things happen. Firstly the shadow is no longer rendered
correctly, and secondly the colour applied seems to be the inverse of
light source?

Here is the render with the only change being the light source color
set to 0xFF00D0:

http://groups.google.com/group/away3d-dev/web/Capture_Shaded.jpg

The relevant bits of code are:

  sun = new DirectionalLight3D({color:0xFFFFFF,brightness:1.2,ambient:
0.1,diffuse:0.9,specular:0});
  var moonMaterial:Dot3BitmapMaterialF10 = new Dot3BitmapMaterialF10
(Cast.bitmap(moonMap0),Cast.bitmap(normalMap));
  moonMaterial.shininess = 0;
  moonMaterial.specular = 0;

Anything obvious I am doing wrong?

Thanks
Mark