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Nvidia Titan V: IRay render fails

Dolce SaitoDolce Saito Posts: 196
in Technical Help (nuts n bolts)

I've been using GTX 980 (4GB) in my system. I also installed a titan V today. Latest drivers is installed and it runs successfully.

Daz studio (latest - as of now ends with .123) sees the card under advanced iray options as "Titan V"

If I select both cards and hit render, only GTX 980 renders with Iray.

If I hit render with only Titan V selected, render info window appears and disappears quickly. At the end of the log file, I found this:

2018-01-10 18:55:15.005 WARNING: dzneuraymgr.cpp(307): Iray ERROR - module:category(IRAY:RENDER):   1.0   IRAY   rend error: Cannot render: found no usable devices.
2018-01-10 18:55:15.005 Iray Render error: Invalid parameters (NULL pointer).

So disappointed to can't give it a try. Anything I can do? 

Comments

  • Daywalker DesignsDaywalker Designs Posts: 3,586
    If this is the Volta Titan card, it's not supported by the version of Iray used in Daz Studio yet.
  • Dolce SaitoDolce Saito Posts: 196

    I'm so sad. I also checked the beginning of the log. I found this:

    WARNING: dzneuraymgr.cpp(307): Iray WARNING - module:category(IRAY:RENDER):   1.1   IRAY   rend warn : CUDA device 0 (TITAN V): compute capability 7.0: unsupported by this version of iray, please look for an update with your software provider.
    Iray INFO - module:category(IRAY:RENDER):   1.1   IRAY   rend info : Using iray plugin version 4.6-beta, build 287000.7672 n, 23 May 2017, nt-x86-64-vc11.
    WARNING: dzneuraymgr.cpp(307): Iray WARNING - module:category(IRAY:RENDER):   1.1   IRAY   rend warn : GPU 1 (TITAN V) with CUDA compute capability 7.0 cannot be used by iray photoreal.

     

    :(

  • Richard HaseltineRichard Haseltine Posts: 108,138

    We may hope that nVidia learned from their experience with Pascal and that Volta willbe supported much more quickly, and that the updated iray will then be integrated into DS (though at that point a previous generation of cards, Fermi or Maxwell I think, will no longer be supported).

  • JamesJABJamesJAB Posts: 1,766

    I could see support for Fermi getting dropped and maybe Kepler, but Maxwell is too new for that 
    Fermi = GTX 4xx, GTX 5xx and some GTX 6xx cards
    Kepler = Some GTX 6xx cards, GTX 7xx and some GTX 8xx cards.
    Maxwell = Some GTX 8xx cards and all GTX 9xx cards
    Pascal = GTX 10xx series
     

  • Richard HaseltineRichard Haseltine Posts: 108,138

    Fermi then, as I recall - it's deprecated in this build of Iray and won't be supported in the next. I suppose the names are in alphabetical order, as is Volta, but it's still hard to keep track of which means what.

  • JD_MortalJD_Mortal Posts: 760

    Support, at the moment, is only in the latest build and in the SDK for IRAY.

    I am waiting for it to get into Daz3D too. :(

    It works in every other rendering program. However, the materials do not, from Daz3D. They are close though...

    P.S. They apparently have a new set of profile settings too, for the "Maxwell" cards, running on windows 10. In the control panel, something about "optomize for compute power", bringing the cards closer to the "Pascal" series cards performance, and older Windows-7 benchmark/use speeds that Maxwell once had.

  • outrider42outrider42 Posts: 3,679
    Its really sad that every other renderer can use Volta except for the renderer that uses the engine created by Nvidia themselves. That is really messed up.

    At least this time the Titan V is the only Volta gpu out for consumers. Hopefully by the time the GTX series launches in full they will be supported in Daz. But it certainly does suck for anybody who dropped $3K on a high end gpu with the intention of using it for Daz.
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