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Volumetric waterfalls

category: code [glöplog]
 
as seen in http://www.youtube.com/watch?v=1Kvl31g77Z8#t=00m46s.

Not ultra-realistic but the volumetric effect is rather striking imo.
It seems like it's achieved with smart positioning of some water textures... what's your opinion / insight on this technique?

cheers
added on the 2010-10-09 21:03:20 by bdk bdk
it looks like scaling cardboard particles with physics?
added on the 2010-10-09 21:47:51 by Maali Maali
yep, in a graceful way...
added on the 2010-10-09 22:31:55 by bdk bdk
How you managed to be impressed by the by far LEAST good-looking bit in that video is beyond me.
added on the 2010-10-09 22:47:48 by gloom gloom
Quote:
How you managed to be impressed by the by far LEAST good-looking bit in that video is beyond me.


Indeed.
added on the 2010-10-09 23:14:59 by texel texel
I just haven't meet better looking real-time versions of such a thing like 'waterfalls' (I'm aware of Ryan Geiss "Waterfalls" demo for DX10).
Shitty or not, I ask myself how it's implemented.
Maybe it's just cardboard sprites :)
added on the 2010-10-09 23:26:27 by bdk bdk
and btw, Geiss version is Much nicer, but lacks of the mentioned 'volumetric' effect.
added on the 2010-10-09 23:27:48 by bdk bdk
added on the 2010-10-09 23:50:23 by ara ara
added on the 2010-10-09 23:55:33 by bdk bdk
seeing those geisswerk-videos on youtube reminds me of a sentence henrik wann jensen said during his keynote at goto-conference "making things look like plastic is easy".

that bumpmapping on the stone to reflect the water looks very plastic to me :)
Thinking a bit about it, it looks to be a very complex effect to simulate...

Not realtime, but one of the most impressive examples is on the film Ratatouille:

http://graphics.pixar.com/library/Whitewater/paper.pdf
http://graphics.pixar.com/library/RatSizedWater/paper.pdf
added on the 2010-10-10 13:13:34 by texel texel
the first two scenes in that video impresses me the most.
added on the 2010-10-10 14:53:04 by rudi rudi
nice links texel, thx.
added on the 2010-10-10 16:46:37 by bdk bdk
@cry-video: these are just stretched particles. They align to the movement and to the camera. Size animated. Fading out at the end. Some Gravity. Probably 2 or 4 texture variations. Easy ;P
But nice textures though.

The nvidia thing is nice as well. Much more sophisticated but of course doesn't look so "phat" on the other hand.
added on the 2010-10-11 12:28:22 by ewerybody ewerybody

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