[osg-users] Particle Sorting
dchristopher at playnet.com
Wed Sep 5 15:46:11 PDT 2007
The settings you mentioned below have been set. These are set by default
within the osg particle system. The problem still exists when I create
I wish I could be of help with the polygon sorting, but I have never
implemented it with osg.
----- Original Message -----
From: "Michele Bosi" <michele.bosi at gmail.com>
To: "Public OpenSceneGraph Users discussion list."
<osg-users at lists.openscenegraph.org>
Sent: Wednesday, September 05, 2007 5:14 PM
Subject: Re: [osg-users] Particle Sorting
> I am also dealing with transparencies and sorting, in your case maybe
> it's enough to mask off z-buffer writing for all the particle systems
> using something like:
> osg::Depth* depth = new osg::Depth();
> osg::StateAttribute::OVERRIDE | osg::StateAttribute::ON);
> also be sure that all the rest is ok, like
> usually for particle systems using this little trick you don't need to
> sort at all.
> The method has some flaws since the result is not really correct as if
> you sorted your particles but since they are moving this shouldn't be
> a problem.
> Theoretically transparent object that don't write on the z-buffer
> should be rendered after the transparent ones that do write on it so
> in order to obtain more correct results for your particles you should
> create another BIN (I know you can do it but have no idea how) and
> schedule it after TRANSPARENT_BIN.
> I just posted a question about polygon sorting, have you ever
> implement it with osg or do you have any particular advice share?
> osg-users mailing list
> osg-users at lists.openscenegraph.org
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