A good sollution how to make rain with particles?

[svenip]

could be a good start with the plane. just use the emit from object command. then i would suggest to use streak mode particles as the render type. a wind field and a little turbulence one will be all that you need then. ahh forget. a gravity off course too :) .

maybe at the end a particle collision event then the particles hit the ground so the spread out to a few tiny particles.

shall i make an example ?

[rsalonen]

Thanks svenip
I have started some with the plane, and I added the air with wind field, but it doesn't react, how comes?

And also, the rain falls very, ummm, flat and in a straight boring line...doesn't really look like rain, more like the matrix text falling down :p

yes and example would be really great!
If you got time of course :beer:

[svenip]

so, here's a fast example. if you don't find out how it worx then i give you an "in depth explain" :)

rain (http://www2.fh-harz.de/~u13837/rain.mb)

[rsalonen]

thank you very much svenip
This is pretty much the effect I want to make
So I will try to re-create what you just done so I learn it.
Will do it tommorrow thou.

But I got one question for you now, how to make the particles stop at the plane (or any surface)
In your example the fall through...

EDIT: oh sorry, it's not the first particles which go through, it's the ones that emits at the ground

[svenip]

select the ground and then particles-make collide. but that's unfortunately that's not all. you then need to go to windows-relationship editors-dynamic relationships and assign the groudn object as a collision for the particles (simply select in the left field the particles, click the collide radio button, and then click the ground surface on the right side)

[rsalonen]

Ah, thanks for the help about the colide, I already knew how to do that, I just had forgoten, it was a while.

Well, I now got a question for you rearding your example file
How do you get the rain to actually move away from the emited plane...when I do it it looks more like it's stucked there and moves very slowly down.
Also I checked your settings and found Event Valid[0], Event Count[0] etc

I do not have these Event atributes, what do they do and where did they came from?

[graphiouz]

if you have added Air and you whant the particles to slide of the plane? play with the GeoConnector, select the colliding plane and hit ctrl-a play around with the 'tessellation factor' 'resilience' and friction., also if you think there are to little influence on the particle from the Air ´set the max distance to a higher number.,

Rain test playblast (http://hem.bredband.net/b122388/misc/blast3.avi)

.

[svenip]

i've added a particle collision event. simply select your particles and in the particle menu click the event menu button. then you can assign what should happen then the particles collide. i selected split.

[rsalonen]

Thank you very much guys for you help
Now I have started to understand more about particles, fields and collision events.

I wonder how this will work in my big scene...
well I will play around with it.

Thanks! :beer:

[jwmoebius]

after hours of fiddling i need to resurrect this thread. i'm trying to let it rain on my maya city, everythings fine so far, i did it as described (emit from surface -> direction -y etc) but i can't change the "density" of the rain, no matter how big my nurbs plane is, i only get 4*4 streaks of rain and that's definitely not enough. this might be in TFM, if so i'm sorry but could use every hint to find it ...
thanks,
jwm

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