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Iray Render produces blank image

31415926543141592654 Posts: 975
in Technical Help (nuts n bolts)

Good day,

I just did a fresh install of DS4.9 on my computer. Everything seems to be working so far except Iray rendering. When I hit the render button, a few seconds pass and then a blank image appears. I have checked many settings and all seem correct. The only difference I am seeing is that my render button is blue rather than the normal dark grey. Any suggestions?

Thank you in advance,

Pi Man

Comments

  • 31415926543141592654 Posts: 975

    Update ... it has something to do with the nvidia card or software related stuff ... I tried rendering an image in cpu only mode and that worked.

  • Richard HaseltineRichard Haseltine Posts: 102,218

    What driver version are you uisng - right-click on desktop, nVidia Control Panel.

  • 31415926543141592654 Posts: 975

    Update ... it does not work in photoreal mode, but does work in interactive render mode ... 

  • jb16jb16 Posts: 52
    edited May 2017

    A black render is sometimes indicative of the fact that your GPU doesn't have enough memory.

    Hope that helps.

    Post edited by jb16 on
  • 31415926543141592654 Posts: 975
    edited May 2017

    Thank you, but it is not a black render ... it is a clear render - something I have not seen before.

    Post edited by 3141592654 on
  • 31415926543141592654 Posts: 975
    edited May 2017

    Updating my driver was something I considered before posting here ... it is 368.71 ... that did not help ... it is a 960M if that makes any difference.

    Post edited by 3141592654 on
  • ToborTobor Posts: 2,300

    The troubleshooting log will tell you why the GPU is not rendering the scene. It can be cryptic, so if the problem isn't obvious, post it here (trim off the log to just the last render; don't post everything from the current Daz Studio session).

    Otherwise, any advice you may get is just a guess. It's better to narrow it down first.

  • 31415926543141592654 Posts: 975

    Okay ... here is a shot of the render log. I see one line that says no usable device detected ... but why would that be?

    dstwerenderlog01.jpg
    1920 x 1080 - 740K
  • 31415926543141592654 Posts: 975

    Okay, I have fixed the problem ... somewhat. When I did the fresh install of DS it gave me version 4.9.3.166 - I tried the DIM version, the manual version, Nvidia updates, etc. Nothing worked. I looked in my hard drive and had the manual DS I started with a year ago 4.9.1.30 and loaded it. Everything is working again. Appearantly some confilict between the newest DS and Nvidia.

  • fastbike1fastbike1 Posts: 4,078
    edited May 2017

    @3141592654

    There may be a conflict between your 4.9.3.166 and your Nvidia driver, but it is by no means widespread,

    Post edited by fastbike1 on
  • javier_4c3512252bjavier_4c3512252b Posts: 6

    Hi, I got the same problem, and after a thousand trials the problem had to to do with temp files. I deleted all temp files and render started normally.

  • tonyjas46_1cccd9144etonyjas46_1cccd9144e Posts: 39

    If you get a transparent render: For low angle shots below the ground plane remember to switch OFF the "Draw Ground" option in the Render/Environment panel. (Gets me every time)wink

  • StratDragonStratDragon Posts: 3,249
    edited April 2019

    Sorry for the necro post but I had this happen to me and I don't have an Nvidia card

    This issue appeared for me last night on 4.10, I had followed the steps above and had rebooted and this issue still repeated. The fix for me after I tried all the above was to cancel the render which hung the system up for a minute or two and then resume the render again, once I did it began rendering immediately. It was on one specific project. I'm wondering if it had anything to do with some crappy geometry somewhere.

    Specs 
    MacPro 2.4GHz Xeon Westmere x2 
    64 GB DDR 1600 MHz
    ATI 5770 1GB DDR5 x2
    Samsung 860 EVO SSD ~80GB Free
    Win7 SP1 (running native not virtualized)
    DS 4.10 Windows
     

    Post edited by StratDragon on
  • tatupandaempiretatupandaempire Posts: 0
    edited April 2020
    tonyjas46_1cccd9144e said:

     

    If you get a transparent render: For low angle shots below the ground plane remember to switch OFF the "Draw Ground" option in the Render/Environment panel. (Gets me every time)wink

    omg thanks,this was my issue. I actually laughed when i switched it off.

    tonyjas46_1cccd9144e said:

    If you get a transparent render: For low angle shots below the ground plane remember to switch OFF the "Draw Ground" option in the Render/Environment panel. (Gets me every time)wink

     

    Post edited by Chohole on
  • John CoxJohn Cox Posts: 29

    tonyjas46...how clever are you. What insight! Thanks so much, now what glue to use to stick my hair back in?

     

    John

  • commo81commo81 Posts: 19

    I had it happen a few nights ago, I'm running a GTX 1070 Gaming 8G. I found if you are trying to capture a scene and the camera is below "ground level" it will do this. That was a few nights ago and once I figured that out, everything was fine. Now, tonight it's doing the same thing described in this thread...again. I checked all my settings. Nothing has changed. I am running DS 4.15.0.2 Pro. Getting frustrating.

  • tom_4003121tom_4003121 Posts: 0

    Got me too lmao, Thanks 

    tonyjas46_1cccd9144e said:

    If you get a transparent render: For low angle shots below the ground plane remember to switch OFF the "Draw Ground" option in the Render/Environment panel. (Gets me every time)wink

  • sivagurumuralidharansivagurumuralidharan Posts: 0

    A Blank Render suggests that your Graphics card is running out of vram required to process the scene. Solution -> Remove some of the assets in the scene which won't be visible in the final Render. For example: If a room has too many small items or tables and wall decorations which won't be in the final render, try removing them. It for sure helps.

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