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    HEXUS.beans all stories come true in the end… see what’s sprouting, and discuss here

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    Old 19-03-2007, 04:23 PM   #1 (permalink)
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    Physics simulation gets sophisticated - R600 at work

    Take a massively parallel architecture like a GPU - say, R600 - and get it to do advanced physics simulation. This is what you get...
    http://www.hexus.net/content/item.php?item=8013


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    Old 19-03-2007, 04:35 PM   #2 (permalink)
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    **** me



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    Old 19-03-2007, 04:44 PM   #3 (permalink)
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    Impressive

    I think this year and next will be a big step ahead interms of graphical power and its ability to render real world physics take Crysis for example...

    Last edited by Optical668; 19-03-2007 at 04:48 PM..
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    Old 19-03-2007, 06:00 PM   #4 (permalink)
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    benchmarks/pictures please
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    Old 19-03-2007, 06:04 PM   #5 (permalink)
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    Quad XFire R600s
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    Old 19-03-2007, 06:09 PM   #6 (permalink)
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    Thats insane !!!

    Hark the children of the Resolution !!
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    Old 19-03-2007, 06:54 PM   #7 (permalink)
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    Cloth and water physics :O Sweet!

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    Old 19-03-2007, 07:20 PM   #8 (permalink)
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    TBH I look forward to the R600 as much as anyone and I hope it smashes the Geforce 8800 GTX in the benchies, but this does just not impress me. A still of a simulation it has ran that deals with a very small area says nothing for its performance or capabilities TBH

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    Old 19-03-2007, 07:59 PM   #9 (permalink)
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    Originally Posted by badass View Post
    TBH I look forward to the R600 as much as anyone and I hope it smashes the Geforce 8800 GTX in the benchies, but this does just not impress me. A still of a simulation it has ran that deals with a very small area says nothing for its performance or capabilities TBH
    Yeah exactly...

    It looks pretty nifty there, but seeing it in motion might be another story, and it says simulation - no mention of real time. If it's real time and looks good in motion that that's really quite something. If it was a case of the R600 pre-rendering it then it's not so impressive, a 486 would probably achieve the same result if you had a few decades of free time

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    Old 19-03-2007, 08:13 PM   #10 (permalink)
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    Drools (a very well modeled physically accurate drool). I look foward to physics simulation as a very cools addition as graphics becomes almost photo realistic (Especially in games like Flight Simulator which strive for realism, and achieve it).
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    Old 19-03-2007, 10:34 PM   #11 (permalink)
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    its already been done by the NVidia lot

    I have somewhere on one of my machines vids of them doing water/blood in a fish tank thing sloshing around and also one of a very realistic smoke effect with artifical interaction so there is an actual reaction to a action.

    So tbh while impressive its not anything new.

    http://graphics.cs.uiuc.edu/svn/kcra...ect_fluid.html

    Last edited by PMM; 19-03-2007 at 10:40 PM..
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    Old 20-03-2007, 12:47 AM   #12 (permalink)
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    It's Eran Guendelman, Andrew Selle, Frank Losasso, and Ron Fedkiw who deserve credit on this one, not ATI.

    That's frame 109 from a video supporting the SIGGRAPH 2005 paper, "Coupling Water and Smoke to Thin Deformable and Rigid Shells."

    Here's the full frame from the original video:

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    Old 20-03-2007, 06:57 AM   #13 (permalink)
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    Yup, the original work was done by them, but the really impressive bit is still down to ATi if they managed to take that simulation, convert it to GPU runnable code, and render it real-time at a decent resolution..

    The original video took a bit longer:
    We were able to simulate computational grids with effective resolutions as large as 256 × 256 × 192 for the fluid and as many as 90k triangles for the rigid and deforming bodies using a 3 GHz Pentium 4. The computational cost ranged from 5 to 20 minutes per frame, and thus the longest examples took a couple of days.
    Like I said, if that's running in real time at a decent resolution, then ATi deserves a *lot* of credit.

    Originally Posted by silent ben
    Nanotechnology is going to be huge.
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    Old 20-03-2007, 07:46 AM   #14 (permalink)
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    Originally Posted by Stoo View Post
    Like I said, if that's running in real time at a decent resolution, then ATi deserves a *lot* of credit.
    Absolutely!

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    Old 20-03-2007, 09:02 AM   #15 (permalink)
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    Originally Posted by hexus
    And once they do, how much GPU time will be left for the graphics?
    That's what your second R600 is for, silly
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    Old 20-03-2007, 09:42 AM   #16 (permalink)
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    Originally Posted by kalniel View Post
    That's what your second R600 is for, silly
    I think marketing actually wants that to be the third, silly
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