[sldev] Hacking the wind

[Vector Hastings]

Wow! That photo is wonderful!

Congrats!

Vector

-----Original Message-----
From: sldev-bounces at lists.secondlife.com
[mailto:sldev-bounces at lists.secondlife.com]On Behalf Of Aimee
Trescothick
Sent: Sunday, July 26, 2009 7:01 PM
To: Second Life Developer Mailing List
Subject: Re: [sldev] Hacking the wind


On 27 Jul 2009, at 01:59, Teravus Ovares wrote:

> This '2D'
> representation of wind makes it almost impossible to simulate a
> tornado.   Also, the resolution of wind is not great for simulating a
> tornado because the sim is broken up into 16 infinitely tall columns.
> You'd have an easier time simulating a hurricane then a tornado :).
> A tornado would need a higher resolution representation as well as a
> representation in 3D space with 3D wind.

3D wind would be nice for flight, lift from thermals etc. The 2D wind
can still do some pretty cool things at times though :)

http://www.flickr.com/photos/aimeethyst/2878821401/sizes/o/in/photostream/
http://www.flickr.com/photos/aimeethyst/2878884819/sizes/o/in/photostream/

1400 windsocks ... the black dot near the bottom centre is me :)


For reference there's a brief comment on the workings of SL wind from
Andrew Linden here:
http://forums.secondlife.com/showthread.php?t=146384&lang=en

.... might be an interesting conversation topic to bring up at his
office hour some time.

The paper by Jos Stam he mentions it's based on is here:
http://www.dgp.toronto.edu/people/stam/reality/Research/pdf/ns.pdf

.... and some explanatory notes on it here:
http://techhouse.brown.edu/~dmorris/projects/summaries/dmorris.stable_fluids
..notes.pdf

Aimee.
_______________________________________________
Policies and (un)subscribe information available here:
http://wiki.secondlife.com/wiki/SLDev
Please read the policies before posting to keep unmoderated posting
privileges