Jesse,

Translucency is currently not supported at all. The reason for this is
mainly that the rasterizer is based on some very experimental design (for
which the entire graphics community would probably kill me - "what??? you
can't seriously do THAT" ;-) The design makes it pretty fast and quite small
(no z-buffer required) but has, in it's current state, the disadvantage that
it simply can't deal with translucency correctly. I know how to change this
but these changes require a fundamental rewrite of core parts in the engine
and for now I just don't have no time to do it. 

  - Andreas

> -----Original Message-----
> From: Jesse Welton [mailto:jwelton at pacific.mps.ohio-state.edu]
> Sent: Wednesday, August 02, 2000 9:55 AM
> To: squeak at cs.uiuc.edu
> Cc: recipient list not shown
> Subject: Re: Learning B3D (newbie)
> 
> 
> I also had a couple of questions about the B3D engine.  In my
> experimenting, I've been putting a B3DSceneObject with a B3DSimpleMesh
> into a B3DSceneMorph.  I eventually figured out how to use the
> texCoords to texturize the model, and color the whole thing with a
> B3DMaterial with an appropriate emission color.  What's stumping me,
> though, is how B3D works with translucency.  I'd really like to be
> able to use translucent 3D objects, and B3DMaterial and
> B3DMaterialColor support some kind of alpha channel, but it doesn't do
> anything for my models.  So, two questions: Can I do what I want?
> (And even if I can't) Where should I look to start understanding
> translucency and lighting?
> 
> -Jesse
>