HI Tom, The original changes back in March were there for a reason (to handle world scale effects), and the new code was meant to handle the billboards wihthout needing to reset the modelview matrix. I'm currently reviewing the code and the SmokeBox.osg example, but as yet haven't spotted where the bug might lie.
BTW, I don't know what relevance the orientation of X,Y,Z has as, and hence why you mention it, as in theory a billboard will just rotate to be parallel to cameras near plane. Is there something specific that made you mention this? Robert. On Wed, Dec 17, 2008 at 2:36 PM, Jolley, Thomas P <[email protected]> wrote: > Hi Robert, > > Trying this again on osg-submissions. > > I found time to look at this problem. What you had usually won't work > because the rotation applied in Particle::render doesn't always match > what is going on in ParticleSystem::single_pass_render. It may work for > applications where Y is up, X is to the right, and Z is toward the > viewer like VTP. I'm not sure how to fix it other than reversing most > of the r7961 changes. > > I've enclosed a modified ParticleSystem.cpp with some of the r7961 > changes you made in single_pass_render. It looks like there is a typo > in calculating yAxis. I think it should be scaleY*scaleY instead of > scaleX*scaleY. Since I'm not sure what you were trying to do with this > I left that part the way you had it. > > <<ParticleSystem.cpp.gz>> > > _______________________________________________ > osg-submissions mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org > > _______________________________________________ osg-submissions mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-submissions-openscenegraph.org
