Increasing fatal errors when previewing Iray
deepswing
Posts: 152
Hey folks,
My machine was working pretty solid with Daz 4.15, but in the past 3-4 days, the number of fatal errors where Daz crashes start to increase. I did apply the newest nVidia graphic card driver approximately to the same time which might cause the issue?
After the crash, it ends with this message:
DAZStudio.exe caused ACCESS_VIOLATION in module "C:\Windows\system32\DriverStore\FileRepository\nvmdi.inf_amd64_b1d015fb0590e821\nvcuda64.dll" at 0033:0000000011AF2A50
The problem is that the log file doesn't have anything in there when it crashes, these are the last lines shortly before the crash when I entered Iray preview mode:
2021-07-14 14:38:57.540 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Rendering with 1 device(s):
2021-07-14 14:38:57.541 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : CUDA device 0 (NVIDIA GeForce RTX 3080)
2021-07-14 14:38:57.541 Iray [INFO] - IRAY:RENDER :: 1.0 IRAY rend info : Rendering...
2021-07-14 14:38:57.541 Iray [INFO] - IRAY:RENDER :: 1.3 IRAY rend progr: CUDA device 0 (NVIDIA GeForce RTX 3080): Processing scene...
2021-07-14 14:38:57.717 Iray [VERBOSE] - IRAY:RENDER :: 1.10 IRAY rend stat : Geometry memory consumption: 999.772 MiB (device 0), 0.000 B (host)
2021-07-14 14:39:03.901 Iray [VERBOSE] - IRAY:RENDER :: 1.10 IRAY rend stat : Texture memory consumption: 2.612 GiB for 164 bitmaps (device 0)
A little bit above I see these lines, but I am not sure if they relate to the crash somehow:
2021-07-14 14:38:47.218 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [WARNING] - TRIT:GEOMETRY :: 1.0 TRIT geo warn : Object DS_shape_525_12239: the parametric approximation level is set to 3. The original value of 6 would produce too much geometry in a single mesh.
2021-07-14 14:38:48.879 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [WARNING] - TRIT:GEOMETRY :: 1.0 TRIT geo warn : Object DS_shape_539_12535: the parametric approximation level is set to 4. The original value of 7 would produce too much geometry in a single mesh.
2021-07-14 14:38:49.749 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [WARNING] - TRIT:GEOMETRY :: 1.0 TRIT geo warn : Object DS_shape_53c_12547: the parametric approximation level is set to 4. The original value of 7 would produce too much geometry in a single mesh.
2021-07-14 14:38:50.585 WARNING: ..\..\..\..\..\src\pluginsource\DzIrayRender\dzneuraymgr.cpp(359): Iray [WARNING] - TRIT:GEOMETRY :: 1.0 TRIT geo warn : Object DS_shape_54f_12711: the parametric approximation level is set to 2. The original value of 3 would produce too much geometry in a single mesh.
Are there any other sources I could look for to get some clarity on what happened? Anybody else having similar issues?
Thanks!
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Comments
Update: These lines I have found as well in the log file:
2021-07-14 14:44:52.354 Iray [INFO] - IRAY:RENDER :: 1.1 IRAY rend info : NVIDIA display driver version: 471.11
2021-07-14 14:44:52.354 Iray [INFO] - IRAY:RENDER :: 1.1 IRAY rend info : Your NVIDIA driver supports CUDA version up to 11.4; iray requires CUDA version 11.0; all is good.
2021-07-14 14:44:52.354 Iray [INFO] - IRAY:RENDER :: 1.1 IRAY rend info : CUDA device 0 (NVIDIA GeForce RTX 3080): compute capability 8.6 will be run as 8.0 by this version of iray.
2021-07-14 14:44:52.354 Iray [INFO] - IRAY:RENDER :: 1.1 IRAY rend info : Please look for an update with your software provider to render at optimal performance.
2021-07-14 14:44:52.356 Iray [INFO] - IRAY:RENDER :: 1.1 IRAY rend info : Using iray plugin version 5.1, build 334300.6349 n, 14 Dec 2020, nt-x86-64-vc14.
2021-07-14 14:44:52.410 Iray [INFO] - IRAY:RENDER :: 1.1 IRAY rend info : CUDA device 0 (NVIDIA GeForce RTX 3080): compute capability 8.6, 10.000 GiB total, 8.986 GiB available, display attached
2021-07-14 14:44:52.410 Iray [INFO] - IRAY:RENDER :: 1.1 IRAY rend info : iray photoreal CPU fallback is enabled.
2021-07-14 14:44:52.410 Iray [VERBOSE] - IRAY:RENDER :: 1.1 IRAY rend stat : Environment cache size capacity: 5.
I am worried a bit with the message "Please look for an update with your software provider to render at optimal performance", I have the newest nVidia driver, is there something else I could install?
"the parametric approximation level is set to 3. The original value of 6 would produce too much geometry in a single mesh." This probably means that you have an object (or objects) in the scene where SubD or some other parameter is making the geometry too dense for DS/Iray to handle.
The "Software provider" in this case refers to DAZ 3D for DS and NVIDIA for IRAY, it just means that your GPU and the installed drivers are capable of better performance than is possible with DS 4.15 and the version of IRAY it is bundled with.
Thanks PerttiA, that seems to be a good hint. I have a scene whith dForce hair, and I had a SubD level of 3 over there, which I now reduced to 2 and for now, no further crashes have been happened. I will keep you posted in case it's coming back, but in case it solved it, that was an insanely good tip I would have never thought of!