translucent B3DSceneObjects with texture?
Andreas.Raab at gmx.de
Tue Mar 12 21:26:43 UTC 2002
Oops. Sorry I forgot about that message. Short answer is: No, not
without using hardware accelerated rendering. The software renderer does
not support alpha operations. But even the hardware renderer needs a
separate sorting path in order to display alpha correctly which is not
explicitly implemented. In short that means you have to make sure that
the rendering order is 'correct' - meaning that first you need to
display all non-alpha objects and then all alpha objects so that opaque
objects behind a transparent one get drawn (if you don't sort 'em the
transparent objects will fill the z-buffer and the opaque objects behind
it don't show through).
> -----Original Message-----
> From: squeak-dev-admin at lists.squeakfoundation.org
> [mailto:squeak-dev-admin at lists.squeakfoundation.org] On
> Behalf Of Craig Latta
> Sent: Tuesday, March 12, 2002 10:15 PM
> To: squeak-dev at lists.squeakfoundation.org
> Subject: translucent B3DSceneObjects with texture?
> Is it possible to create a B3DSceneObject which has a
> texture (e.g.,
> >from a JPEG) but is also translucent? I'd like to extend Luciano's
> facial animation work to show internal muscles; I'd like to use
> translucent skin.
> Craig Latta
> composer and computer scientist
> craig.latta at netjam.org
> crl at watson.ibm.com
> To quote is human, to paraphrase divine.
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