Have you any ideas how may I do a cool looking snow and rain? Where can I find nice exaple for it? Thx in advance... Edited by - oktan on March 29, 2002 4:24:41 PM

First of all you''re going to need a particle system.

Then for something "cool looking", depends on what you mean by cool.

Check my RainZ app for some rain, but the rain isn''t particularly cool (even w/ splashes), though hopefully some other aspects of the app are!

Personally I have always thought that a swirling effect in rain or especially snow is a cool effect, that involves zone-vectoring particles (what I call it).

Rain dribbling down a window, casting light refractions on a wall or face is also very cool.

zin

zintel.com - 3d graphics & more or less

Ok, I made a nice, extended particle system, which can simulate almost everything, but nice rain is a special problem. If you had played in good games, you would know what I mean.

I played Doom1/2..., UnReal, Half-Life and Quake mostly. The only special effect I saw w/ rain was on some flying sim, as it splattered on a jet window. and it wasn''t that great.

I''ve heard of some very nice water effects on some console games, but don''t play them.

zin

zintel.com - 3d graphics & more or less

Halo has a nice particle system but there aren''t that much rain in the game, mostly snow nad the SNOW was very cool!
The water in the game, eventhough the game made the enemies cloak themselves by becoming transparent and start refracting everything, wasn''t very cool. It simply looked odd when you came up close on a lake or something. But at the distance it was great!

However... refractive rain, hmm.
Why not model a 3D raindrop, texture it with som water textures, make it refract stuff, make it a bit transparent, bumpmap it a little and then apply it to the particle system?

-Js

Js

quote:

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Original post by the_recon
However... refractive rain, hmm.
Why not model a 3D raindrop, texture it with som water textures, make it refract stuff, make it a bit transparent, bumpmap it a little and then apply it to the particle system?

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Because that is near impossible to do in realtime.



Death of one is a tragedy, death of a million is just a statistic.

Near impossible? Not with a GeForce 3 and above it ain''t =P
I use a GeForce 2 and it doesn''t support motionblurring, bumpmapping etc. BUT on our Xbox where HALO has EVERYTHING bumbmapped and EVERYTHING is reflecting everything else and where enemies can come at you with a refraction map all over them and the FPS doesn''t drop one bit =)
Near impossible? Don''t think so.


Js

hello
ive just noticed a snow effect example in the OpenGL Game Programming book, page 451. Maybe this has ideas for u, i purchased the book last week and i think its great.
The source code for the book is at http://glbook.gamedev.net/, so maybe one of the files contains the snowstorm example. Im not sure, havent had time to look through it yet. But its just an idea!

Regards.
- Pete

>>I use a GeForce 2 and it doesn''t support motionblurring, bumpmapping etc.<<

my gf2mx certainly does bumpmapping though not motionblurring then again the gf3+4/xbox dont support this either<<

>>BUT on our Xbox where HALO has EVERYTHING bumbmapped and EVERYTHING is reflecting everything else and where enemies can come at you with a refraction map all over them and the FPS doesn''t drop one bit =)<<

except at the end when the fps drops to single didgets

http://uk.geocities.com/sloppyturds/gotterdammerung.html

Hah, but the Voodoo 5 whihc came out a year or two ago, it did motion blur hehe... I miss 3DFX


BTW who would want a particle system tutorial on gamedev.net??

[edited by - ExplosiveNewt on March 30, 2002 8:55:51 PM]