Fluid volume simulation

Discussion in 'Rendering Technology and APIs' started by Voxilla, Dec 27, 2009.

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  1. Talonman

    Talonman
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    Thanks for your response... :)

    I noticed it had:
    System Requirements


    • Supported Operating Systems: Windows 2000 Service Pack 4; Windows Server 2003; Windows Vista; Windows XP
    I am 7 64 bit, so is it safe for me to install?
     
    #21 Talonman, Jan 6, 2010
  2. Voxilla

    Voxilla
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    Should be ok.
     
    #22 Voxilla, Jan 6, 2010
  3. chavvdarrr

    chavvdarrr
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    Is it possible to run it on NV hardware?
     
    #23 chavvdarrr, Jan 6, 2010
  4. fellix

    fellix
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    ...probably.
     
    #24 fellix, Jan 6, 2010
  5. Voxilla

    Voxilla
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    Currently not as it is DX11 / Compute shader 5. On Fermi it should run quite well as the simulation is more limited by memory bandwidth than by FLOPs.
     
    #25 Voxilla, Jan 6, 2010
  6. Talonman

    Talonman
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    #26 Talonman, Jan 6, 2010
  7. Voxilla

    Voxilla
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    On a Nvidia 295 this software can not run, as it requires compute shader 5. Currently only works on ATI 5xxx cards.
     
    #27 Voxilla, Jan 6, 2010
  8. fellix

    fellix
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    ComputeMark -- a benchmark, based on Fluid3D. :p

    (just hit the big green button for download)
     
    #28 fellix, Apr 18, 2010
  9. IRQ Conflict

    IRQ Conflict

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    Score of 2199 with a Q6600 and HD 5870.
     
    #29 IRQ Conflict, Apr 18, 2010
  10. Lightman

    Lightman
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    Looks great in motion!
     
    #30 Lightman, Apr 18, 2010
  11. fellix

    fellix
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    My HD5870 @ 930/1250MHz scores 2328.

    From what I've read, the kernel is vectorized, so it suits nicely for the Radeons. Playing with thread block size doesn't help much the GF100 to gain performance.
     
    #31 fellix, Apr 18, 2010
  12. fellix

    fellix
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    New version (1.3) is available, with optimizations for both NV and ATi hardware -- as claimed by the autor -- while GF100 still lagging way behind HD5000 scores.

    From the comments, some are pointing to the crappy handling of 3D textures in NV's driver for DC5.
     
    #32 fellix, May 21, 2010
  13. Voxilla

    Voxilla
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    An updated Fluid3D version 1.3 is now available.
    The thread group size has been changed to 256 (16x4x4) for all volume compute kernels. (Before it was 50x4x4 or 8x4x4). The results is a 10-20% speed bump.

    This demo was made before Fermi was available. On a GTX480 It happens to be running 3 times slower as a HD5870. Nvidia has some performance issues when using 3D textures.
    An alternative version making use of 2D texture arrays is available in the ComputeMark 2.x benchmark.
     
    #33 Voxilla, Jun 6, 2010
  14. CarstenS

    CarstenS
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    Wow, that's weird. With 2DTexArrays, my HD5870 is only half as fast (252 score) as with the former 3D textures 532 score) using the ComputeMark 2.0.

    Total score: 1448 (in 1920x1200) on Cat 10.4, Win7x64 and an E8500.

    Nice Benchmark, guys!
     
    #34 CarstenS, Jun 6, 2010
  15. Davros

    Davros
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    will that affect games ?
     
    #35 Davros, Jun 6, 2010
  16. Voxilla

    Voxilla
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    It used to be only 1/3 slower, I just noticed Robert made the volume larger than 200^3 that may explain something...
     
    #36 Voxilla, Jun 7, 2010
  17. Voxilla

    Voxilla
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    I can imagine that DirectCompute based physics could use simulations like these that need 3d textures, so yes it could affect future games.
     
    #37 Voxilla, Jun 7, 2010
  18. Robert Varga

    Robert Varga
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    It's 220^3 for Normal, 240^3 for Complex and 270^3 for Extreme.
     
    #38 Robert Varga, Jun 7, 2010
  19. guardian

    guardian
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    hmm would it run on an nvidia 330M GT? the one that comes with recent macbook pros?
     
    #39 guardian, Dec 9, 2010
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