Re: [osg-users] osgParticle(particle system) vs PrecipitationEffect plz help me out~
Hi, so the precipitationEffect(shader) is based on GPU? Thank you! Cheers, Kim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=55973#55973 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osgParticle(particle system) vs PrecipitationEffect plz help me out~
On 23 August 2013 08:32, Kim JongBum osgfo...@tevs.eu wrote: the precipitationEffect(shader) is based on GPU? I don't personally write shaders for anything other than to run on the GPU. The whole architecture of PrecipitionEffect is geared around getting the best performance for a given visual quality and scalability, so it uses static geometry that resides on the GPU and all the animation of particles is done on the GPU. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] osgParticle(particle system) vs PrecipitationEffect plz help me out~
Hi, guys i would like to learn differences between osgParticle (particle system) and osgParticle::PrecipitationEffect. i tried to implement snow/rain effect with them but the result is totally different so why is that? especially, osgParticle (particle system)'s performance is very low even if i render little particles with short life span and at the small part. on the other hand, PrecipitationEffect render at the whole scene but performance is high(frame rates) so could you explain that the differences and how they work i mean the principles plz~ Thank you so much guys ! Cheers, Kim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=55938#55938 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] osgParticle(particle system) vs PrecipitationEffect plz help me out~
Hi Kim, PrecipitationEffect uses shaders is relatively modern but problem specific, while osgParticle::Particle/ParticleSystem uses CPU is relatively old but general purpose. Robert. On 22 August 2013 06:20, Kim JongBum osgfo...@tevs.eu wrote: Hi, guys i would like to learn differences between osgParticle (particle system) and osgParticle::PrecipitationEffect. i tried to implement snow/rain effect with them but the result is totally different so why is that? especially, osgParticle (particle system)'s performance is very low even if i render little particles with short life span and at the small part. on the other hand, PrecipitationEffect render at the whole scene but performance is high(frame rates) so could you explain that the differences and how they work i mean the principles plz~ Thank you so much guys ! Cheers, Kim -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=55938#55938 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
