"Preparing Scene" is looping infinitely

ANNOProfi

Whenever I try to either render an image, or change the viewport setting to IRAY shading, DAZ starts preparing the scene, but never stops and just loops it forever.
This only happens, when there is an object in the scene, but it can be any object, from a whole building, to just a blank cube.

The log file records this:

2023-05-31 11:20:26.440 [INFO] :: Loading Layout: C:/Users/ANNOP/AppData/Roaming/DAZ 3D/Studio4/layout.dsx
2023-05-31 11:20:30.739 [WARNING] :: QColor::setRgb: RGB parameters out of range
2023-05-31 11:20:30.975 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "D:\Program Files\DAZ 3D\DAZStudio4\shaders\iray\resources\DTHDR-RuinsB-500.hdr", no selector, pixel type "Rgb_fp", 512x256x1 pixels, 1 miplevel.
2023-05-31 11:20:31.187 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating geometry.
2023-05-31 11:20:31.189 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating motion transforms.
2023-05-31 11:20:31.189 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Importing scene graph.
2023-05-31 11:20:31.189 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Importing geometry for motion time 0
2023-05-31 11:20:31.189 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Geometry import (0 triangle objects with 0 triangles, 0 fiber objects with 0 fibers (0 segments), 0 triangle instances yielding 0 triangles, 0 fiber instances yielding 0 segments) took 0.000 s
2023-05-31 11:20:31.190 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating section objects.
2023-05-31 11:20:31.207 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating materials.
2023-05-31 11:20:31.209 Iray [INFO] - MATCNV:RENDER ::   1.0   MATCNV rend info : found 0 textures, 0 lambdas (0 unique)
2023-05-31 11:20:31.209 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating volumes.
2023-05-31 11:20:31.209 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating environment.
2023-05-31 11:20:31.223 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating lens.
2023-05-31 11:20:31.223 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating lights.
2023-05-31 11:20:31.224 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating object flags.
2023-05-31 11:20:31.224 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating backplate.
2023-05-31 11:20:31.229 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating caustic portals.
2023-05-31 11:20:31.229 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating decals.
2023-05-31 11:20:31.382 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Using iray core convergence estimate.
2023-05-31 11:20:31.405 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Allocating 1-layer frame buffer
2023-05-31 11:20:31.410 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Using interactive scheduling, caustic sampler disabled
2023-05-31 11:20:31.410 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Initializing local rendering.
2023-05-31 11:20:31.501 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Using OptiX Prime version 5.0.1
2023-05-31 11:20:31.502 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Initializing OptiX Prime for CUDA device 1
2023-05-31 11:20:32.688 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Using OptiX version 7.3.0
2023-05-31 11:20:32.742 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Initializing OptiX for CUDA device 0
2023-05-31 11:20:41.528 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Rendering with 2 device(s):
2023-05-31 11:20:41.528 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : CUDA device 1 (NVIDIA GeForce GTX 970)
2023-05-31 11:20:41.528 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2070)
2023-05-31 11:20:41.535 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Rendering...
2023-05-31 11:20:41.569 Iray [INFO] - IRAY:RENDER ::   1.2   IRAY   rend progr: CUDA device 1 (NVIDIA GeForce GTX 970): Processing scene...
2023-05-31 11:20:41.569 Iray [INFO] - IRAY:RENDER ::   1.8   IRAY   rend progr: CUDA device 0 (NVIDIA GeForce RTX 2070): Processing scene...
2023-05-31 11:20:41.633 Iray [INFO] - IRAY:RENDER ::   1.5   IRAY   rend info : Importing lights for motion time 0
2023-05-31 11:20:41.641 Iray [INFO] - IRAY:RENDER ::   1.5   IRAY   rend info : Initializing light hierarchy.
2023-05-31 11:20:41.659 Iray [INFO] - IRAY:RENDER ::   1.5   IRAY   rend info : Light hierarchy initialization took 0.018 s
2023-05-31 11:20:41.872 Iray [INFO] - IRAY:RENDER ::   1.8   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2070): Scene processed in 0.303s
2023-05-31 11:20:41.879 Iray [INFO] - IRAY:RENDER ::   1.9   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2070): Allocated 12.098 MiB for frame buffer
2023-05-31 11:20:41.886 Iray [INFO] - IRAY:RENDER ::   1.8   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2070): Allocated 1.906 GiB of work space (2048k active samples in 0.006s)
2023-05-31 11:20:41.942 Iray [INFO] - IRAY:RENDER ::   1.8   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2070): Optimizing for cooperative usage (performance could be sacrificed)
2023-05-31 11:20:42.117 Iray [INFO] - IRAY:RENDER ::   1.2   IRAY   rend info : CUDA device 1 (NVIDIA GeForce GTX 970): Scene processed in 0.547s
2023-05-31 11:20:42.119 Iray [INFO] - IRAY:RENDER ::   1.5   IRAY   rend info : CUDA device 1 (NVIDIA GeForce GTX 970): Allocated 4.224 MiB for frame buffer
2023-05-31 11:20:42.447 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00001 iterations after 0.655s.
2023-05-31 11:20:42.451 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Rendering...
2023-05-31 11:20:42.478 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00002 iterations after 0.683s.
2023-05-31 11:20:42.483 Iray [INFO] - IRAY:RENDER ::   1.2   IRAY   rend info : CUDA device 1 (NVIDIA GeForce GTX 970): Allocated 976.000 MiB of work space (1024k active samples in 0.018s)
2023-05-31 11:20:42.568 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00004 iterations after 0.773s.
2023-05-31 11:20:42.587 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00006 iterations after 0.791s.
2023-05-31 11:20:42.619 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00010 iterations after 0.824s.
2023-05-31 11:20:42.671 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00018 iterations after 0.875s.
2023-05-31 11:20:42.778 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00034 iterations after 0.982s.
2023-05-31 11:20:42.865 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00050 iterations after 1.070s.
2023-05-31 11:20:43.036 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00082 iterations after 1.240s.
2023-05-31 11:20:43.238 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00120 iterations after 1.443s.
2023-05-31 11:20:43.437 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00158 iterations after 1.642s.
2023-05-31 11:20:43.636 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00196 iterations after 1.841s.
2023-05-31 11:20:43.835 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00234 iterations after 2.039s.
2023-05-31 11:20:44.036 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00273 iterations after 2.241s.
2023-05-31 11:20:44.241 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00311 iterations after 2.445s.
2023-05-31 11:20:44.446 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00349 iterations after 2.650s.
2023-05-31 11:20:44.648 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00386 iterations after 2.853s.
2023-05-31 11:20:44.839 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00424 iterations after 3.044s.
2023-05-31 11:20:45.044 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00462 iterations after 3.248s.
2023-05-31 11:20:45.247 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00499 iterations after 3.452s.
2023-05-31 11:20:45.453 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00536 iterations after 3.658s.
2023-05-31 11:20:45.652 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00572 iterations after 3.856s.
2023-05-31 11:20:45.853 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00608 iterations after 4.057s.
2023-05-31 11:20:46.054 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00644 iterations after 4.259s.
2023-05-31 11:20:46.250 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00679 iterations after 4.455s.
2023-05-31 11:20:46.446 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00715 iterations after 4.651s.
2023-05-31 11:20:46.656 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00752 iterations after 4.860s.
2023-05-31 11:20:46.849 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00788 iterations after 5.054s.
2023-05-31 11:20:47.059 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00825 iterations after 5.263s.
2023-05-31 11:20:47.255 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00861 iterations after 5.460s.
2023-05-31 11:20:47.454 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00897 iterations after 5.659s.
2023-05-31 11:20:47.686 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00934 iterations after 5.891s.
2023-05-31 11:20:47.889 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00966 iterations after 6.093s.
2023-05-31 11:20:48.060 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 00999 iterations after 6.265s.
2023-05-31 11:20:48.254 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 01036 iterations after 6.458s.
2023-05-31 11:20:48.460 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 01074 iterations after 6.665s.
2023-05-31 11:20:48.652 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 01113 iterations after 6.856s.
2023-05-31 11:20:48.863 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 01152 iterations after 7.068s.
2023-05-31 11:20:49.064 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 01189 iterations after 7.269s.
2023-05-31 11:20:49.292 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 01227 iterations after 7.497s.
2023-05-31 11:20:49.486 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 01260 iterations after 7.691s.
2023-05-31 11:20:49.669 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 01294 iterations after 7.874s.
2023-05-31 11:20:49.865 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 01331 iterations after 8.069s.
2023-05-31 11:20:50.064 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 01369 iterations after 8.269s.
2023-05-31 11:20:50.267 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 01408 iterations after 8.471s.
2023-05-31 11:20:50.472 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 01446 iterations after 8.677s.
2023-05-31 11:20:50.676 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 01483 iterations after 8.881s.
2023-05-31 11:20:50.870 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend progr: Received update to 01521 iterations after 9.074s.
2023-05-31 11:20:51.154 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Device statistics:
2023-05-31 11:20:51.154 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : CUDA device 1 (NVIDIA GeForce GTX 970):  1521 iterations, 1.838s init, 8.617s render
2023-05-31 11:20:51.155 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2070): 1521 iterations, 9.275s init, 8.798s render
2023-05-31 11:20:52.057 [INFO] :: Loaded image: DTHDR-RuinsB-500.hdr
2023-05-31 11:21:02.076 [WARNING] :: QColor::setRgb: RGB parameters out of range
2023-05-31 11:21:02.127 Iray [INFO] - IMAGE:IO ::   1.0   IMAGE  io   info : Loading image "D:\Program Files\DAZ 3D\DAZStudio4\shaders\iray\resources\DTHDR-RuinsB-500.hdr", no selector, pixel type "Rgb_fp", 512x256x1 pixels, 1 miplevel.
2023-05-31 11:21:02.249 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating geometry.
2023-05-31 11:21:02.249 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating motion transforms.
2023-05-31 11:21:02.249 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Importing scene graph.
2023-05-31 11:21:02.251 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Auto instancing compression ratio 0.80 (Full instancing compression ratio 0.75)
2023-05-31 11:21:02.251 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Importing geometry for motion time 0
2023-05-31 11:21:02.254 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Geometry import (1 triangle object with 12 triangles, 0 fiber objects with 0 fibers (0 segments), 1 triangle instance yielding 12 triangles, 0 fiber instances yielding 0 segments) took 0.003 s
2023-05-31 11:21:02.254 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating section objects.
2023-05-31 11:21:02.254 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating materials.
2023-05-31 11:21:02.264 Iray [INFO] - MATCNV:RENDER ::   1.0   MATCNV rend info : found 0 textures, 0 lambdas (0 unique)
2023-05-31 11:21:02.264 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating volumes.
2023-05-31 11:21:02.264 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating environment.
2023-05-31 11:21:02.274 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating lens.
2023-05-31 11:21:02.274 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating lights.
2023-05-31 11:21:02.274 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating object flags.
2023-05-31 11:21:02.274 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating backplate.
2023-05-31 11:21:02.276 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating caustic portals.
2023-05-31 11:21:02.276 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Updating decals.
2023-05-31 11:21:02.279 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Using iray core convergence estimate.
2023-05-31 11:21:02.279 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Allocating 1-layer frame buffer
2023-05-31 11:21:02.282 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Using interactive scheduling, caustic sampler disabled
2023-05-31 11:21:02.283 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Initializing local rendering.
2023-05-31 11:21:02.285 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Initializing OptiX Prime for CUDA device 1
2023-05-31 11:21:02.291 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Initializing OptiX for CUDA device 0
2023-05-31 11:21:02.537 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Rendering with 2 device(s):
2023-05-31 11:21:02.537 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : CUDA device 1 (NVIDIA GeForce GTX 970)
2023-05-31 11:21:02.538 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2070)
2023-05-31 11:21:02.538 Iray [INFO] - IRAY:RENDER ::   1.0   IRAY   rend info : Rendering...
2023-05-31 11:21:02.538 Iray [INFO] - IRAY:RENDER ::   1.2   IRAY   rend progr: CUDA device 1 (NVIDIA GeForce GTX 970): Processing scene...
2023-05-31 11:21:02.538 Iray [INFO] - IRAY:RENDER ::   1.8   IRAY   rend progr: CUDA device 0 (NVIDIA GeForce RTX 2070): Processing scene...
2023-05-31 11:21:02.588 Iray [INFO] - IRAY:RENDER ::   1.5   IRAY   rend info : Importing lights for motion time 0
2023-05-31 11:21:02.589 Iray [INFO] - IRAY:RENDER ::   1.5   IRAY   rend info : Initializing light hierarchy.
2023-05-31 11:21:02.589 Iray [INFO] - IRAY:RENDER ::   1.5   IRAY   rend info : Light hierarchy initialization took 0.000 s
2023-05-31 11:21:02.621 Iray [INFO] - IRAY:RENDER ::   1.8   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2070): Scene processed in 0.083s
2023-05-31 11:21:02.622 Iray [INFO] - IRAY:RENDER ::   1.7   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2070): Allocated 12.098 MiB for frame buffer
2023-05-31 11:21:02.623 Iray [INFO] - IRAY:RENDER ::   1.8   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2070): Allocated 1.906 GiB of work space (2048k active samples in 0.000s)
2023-05-31 11:21:02.623 Iray [INFO] - IRAY:RENDER ::   1.8   IRAY   rend info : CUDA device 0 (NVIDIA GeForce RTX 2070): Optimizing for cooperative usage (performance could be sacrificed)

 

As far as I can understand this, it says that there is nothing wrong and the scene is done, right?

PerttiA

Try unchecking the GTX 970 from rendering devices.

Instead of copying the text from the log, attach the log file to your post with "Attach a file" above the "Post Comment" button. The text you copied, is notvery helpful

ANNOProfi

PerttiA said:

Try unchecking the GTX 970 from rendering devices.

Instead of copying the text from the log, attach the log file to your post with "Attach a file" above the "Post Comment" button. The text you copied, is notvery helpful

Unchecking the 970 worked, thanks.