Re: Transparency problem

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Mario Veraart (rioj7++at++fel.tno.nl)
Mon, 8 Sep 1997 13:35:31 +0200 (MET DST)

> We are having a problem with transparency. We have two objects, A and
> B, A has a transparent texture and is in front of B. As we move the
> scene around, at certain angles, the parts of B behind the transparent
> areas of A also disappear. We think it may be some kind of drawing
> order problem involved with z-buffering. We don't do the actual
> drawing, that is handled in perfly, is there some way to stop this from
> happening in the scene definition?

This could be caused by the fact that your system doesn't support multismaple.
On those platforms when you render a transparent-textured polygon there will
be an update of the Z-buffer and this causes the geometry that is later
rendered and that lies behind this polygon not to be drawn.

Mario
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