That worked.  I should've asked this group days ago.  I don't think I
would've figured that out by myself.  Anyway, thanks a lot Dan and
Chris.

Greg

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Gilbert,
Daniel R.
Sent: Wednesday, October 04, 2006 9:49 AM
To: osg users
Subject: RE: [osg-users] white border around textures

Hey Greg,

You place items in the transparent bin by setting the RenderingHint on
the
stateset:

        stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);

And as you mentioned before, you want to make sure and have blending on
if
the billboards include partial transparency:

        stateset->setMode(GL_BLEND, osg::StateAttribute::ON);


-- Dan
 

> -----Original Message-----
> From: [EMAIL PROTECTED] 
> [mailto:[EMAIL PROTECTED] On Behalf Of 
> Goldstein, Gregory A.
> Sent: Wednesday, October 04, 2006 6:40 AM
> To: osg users
> Subject: RE: [osg-users] white border around textures
> 
> > Are your billboards z-sorted by putting them in the transparent bin?
> 
> I'm not sure what this means.  How would I do this?
> 
> 
> > Are you sure the other program uses alpha-blend and not alpha-clip?
> 
> I would try alpha clipping if I knew how to do it.  Is there a state
> attribute for this?
> 
> 
> Thanks Chris.
> - Greg
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of 
> Chris Hanson
> Sent: Tuesday, October 03, 2006 6:48 PM
> To: osg users
> Subject: Re: [osg-users] white border around textures
> 
> Goldstein, Gregory A. wrote:
> > I'm creating a billboard with multiple Quad objects with tree
> textures.  
> > But the tree textures show up with a thin white border around the
> tree.  
> > The white border is around the tree itself, not the rectangular edge
> of 
> > the Quad.  Is there any way to get rid of this white outline?  I've
> used 
> > the same tree textures in another program without seeing any white 
> > border, so I don't think the textures are necessarily the problem.
> I've 
> > tried using a BlendFunc to blend the textures, and this 
> helps to some 
> > degree, but the border is still visible some of the time.
> 
>    Are your billboards z-sorted by putting them in the 
> transparent bin?
> 
>    Are you sure the other program uses alpha-blend and not alpha-clip?
> 
> > Thanks a lot,
> > Greg
> 
> -- 
> Chris 'Xenon' Hanson aka Eric Hammil | 
> http://www.3DNature.com/ eric at
> logrus
>   "I set the wheels in motion, turn up all the machines, activate the
> programs,
>    and run behind the scenes. I set the clouds in motion, 
> turn up light
> and sound,
>    activate the window, and watch the world go 'round." -Prime Mover,
> Rush.
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