There is certainly a change in behavior, although I can't pinpoint the change in code yet.
Setting the rotational speed with (0, 0, 1): OSG 2.2.0 - particles rotate like fans (pinwheels) OSG 2.4.0 - particles rotate like a margarita blender (cork-screw) OSG 2.6.0 - particles rotate like a margarita blender (cork-screw) I guess I'm just wondering if this is the expected behavior? And I'm surprised nobody has a problem with this. Thanks, Erik Date: Thu, 21 Aug 2008 09:26:52 +0100 > From: "Robert Osfield" <[EMAIL PROTECTED]> > Subject: Re: [osg-users] Particle system > setInitialRotationalSpeedRange() > To: "OpenSceneGraph Users" <osg-users@lists.openscenegraph.org> > Message-ID: > <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=ISO-8859-1 > > Hi Erik, > > osgParticle has hardly been touched between OSG-2.2 and 2.6. Use svn > log to check which files have changed. > > Robert. > > On Thu, Aug 21, 2008 at 1:07 AM, Erik Johnson <[EMAIL PROTECTED]> > wrote: > > Hi all, > > > > It seems to me, back in the OSG 2.2.x time frame, that I could set the > > initial rotational velocity of the RadialShooter and have the particles > > "pinwheel" around their center point, while maintaining their billboard > > orientation and face the Camera. Perhaps it was a rotation on the "Y" > > axis. > > > > Nowadays with OSG 2.4/2.6, setting the rotational speed will cause the > > particles to rotate relative to the world axis and not in the > > camera-relative axis. > > > > Is this a bug? A feature? Is it still posible to "pinwheel" a particle > > around? Does anyone use setInitialRotationalSpeedRange()? > > > > This was a cool effect which added a nice dimension to smoke plumes and > > such. > > > > Thanks for any info! > > -Erik Johnson > > > > > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > >
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