[osg-users] Particles / gpu / cpu

[Robert Osfield]

Hi Johny,

With modern graphics hardware I would recommend using GPU.

Most of osgParticle was written back before shaders so is primarily
around CPU particles. These old classes need to be kept around for
backwards compatibility but I wouldn't recommend using these CPU
particles systems these days.

The exception in osgParticle is the PrecipitionEffect class that
implements a GPU based rain/snow/sleet rendering.

Robert.


On 22 February 2017 at 09:18, Johny Canes <psijsma at gmail.com> wrote:
> Hi,
>
> I'm going to do add 'particles' to my osgapp, and someone might be interested in how I. I'll do some research to see what tradeoffs should be made, and whether I can run some of it on the gpu, et cetera. I'm not sure if I want to do manual state changes via uniform callbacks on a large set of particles.
>
> I'm aiming for dust particles, radioactive particles, maybe rain. Maybe generalize it into a system or write a handy glsl for each different type.
>
> Thank you!
>
> Cheers,
> Johny
>
> ------------------
> Read this topic online here:
> http://forum.openscenegraph.org/viewtopic.php?p=70306#70306
>
>
>
>
>
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