Hi Matthieu,
Switching the effect off under terrain is not straight forward as the
effect is achieved by creating a repeating regular grid of bricks of
particles. Each brick is actually just a single geometry that the
shader uses coord data to position in its final place. This technique
provides
Hello,
I am using osgParticle::PrecipitationEffect to add snow or rain on my
scene.
I am looking at a way to determine for each particle, if z position is
under the terrain or not.
The objective is, when a particle is under an object or in a tunnel it
should not be visible...
In a firs
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