Re: [Algorithms] PVA hierarchies (was: Terrain performance etc)

[Lucas A. <ack...@ll...>]

Jonathan Blow wrote:

>Mark Duchaineau wrote:
>
>  
>
>>For a huge computational
>>fluid dynamics isosurface representing the mixing boundary
>>of two gases undergoing violent (explosion-induced)
>>turbulence, i.e. a REALLY nasty surface, I am getting
>>a solid 100M tri/sec with essentially no CPU work
>>per frame (from the app anyway -- I can't speak for
>>the drivers).  This surface has depth complexity 50
>>on average, so I really need to minimize the window size
>>to get this performance (we haven't gotten the
>>occlusion culling for this finished yet -- that's
>>another big project!).
>>    
>>
>
>That sounds really cool, actually.  Are you able to share this
>data set?  I'd like to do some experiments with something
>like that.
>
>   -Jonathan.
>
>  
>

I'm not informed as to its availibility (and have learned not to ask 
certain kinds of questions around here).

There are a couple pages with some background info and lots of pictures:

http://www.llnl.gov/CASC/asciturb/simulations.shtml

and movies:

http://www.llnl.gov/CASC/asciturb/movies.html

It's one monster of an isosurface.  Mark does have a butchered version 
that can be rendered (static LOD chunk hierarchy) in realtime on a laptop.

-Lucas