[osg-users] cessnafire.osg...

Robert Osfield robert.osfield at gmail.com
Mon Jul 7 09:04:08 PDT 2008


Hi Shayne,

Have a look through the archives on this topic, much of the
discussions goes way back.

Also have a look at the osgparticleeffects code block, it has a code
path that handles moving models and particles systems.

Robert.

2008/7/7 Tueller,  Shayne R Civ USAF AFMC 519 SMXS/MXDEC
<Shayne.Tueller at hill.af.mil>:
> Thanks for the link. While I appreciate the info, it doesn't really address
> my original question about transforming the particle emitter that is defined
> in the cessnafire.osg file. After reading the cessnafire.osg file into a
> node, I add this node to a MatrixTransform but only the geometry is
> affected. The fire/smoke part is NOT affected by the transform whatsoever.
>
> Anyone else caring to chime in on this? Perhaps it can't be done...
>
> -Shayne
>
> -----Original Message-----
> From: osg-users-bounces at lists.openscenegraph.org
> [mailto:osg-users-bounces at lists.openscenegraph.org] On Behalf Of ???
> Sent: Thursday, July 03, 2008 8:09 PM
> To: OpenSceneGraph Users
> Subject: Re: [osg-users] cessnafire.osg...
>
>  >I'm assuming that the fire/smoke is modeled using osgParticle…
>
>  I think so! You can take a look
> http://faculty.nps.edu/jasullivan/osgtutorials/osgParticle.htm
>
>
>
>
> 在2008-07-04 07:10:57,"Tueller, Shayne R Civ USAF AFMC 519 SMXS/MXDEC"
> <Shayne.Tueller at HILL.af.mil> 写道:
>
>
>        I have a simple/silly question regarding cessnafire.osg.
>
>
>
>        I can load this into a node and display it without trouble, however,
> when I apply a MatrixTransform to the node, the geometry is changed but the
> fire/smoke animation doesn't follow the geometry. I'm assuming that the
> fire/smoke is modeled using osgParticle…
>
>
>
>        My question is, is what do I need to do to have fire/smoke undergo
> the same transformation as the geometry so that it moves with the airplane?
> Do I need to use the Texture matrix?
>
>
>
>        Any help here would be welcome…
>
>
>
>        Thanks,
>
>        -Shayne
>
>
>
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