Octane not using GPU

[Alexisbaydoun]

Hi guys,

i'm moving computers and installing Octane on a new Desktop that has a GPU RTX 2070. I've installed the Nividia drivers and the Cuda drivers and everything. But the computer is very slow when i open a scene and the GPU percentage being used is 1% to 5% maximum. Attaching reference.

I also went to Settings in Octane to check if the GPU is enabled and ticked "Use Priority" but still its not using the GPU at all.

Any help?

Thanks

[bepeg4d]

Hi,
you need to use GPU-Z to monitor the GPU sensors while rendering:
https://www.techpowerup.com/gpuz/
Note that you can see the GPU Load/Temperature displayed also in Live View info bar.
Priority is necessary if the GPU is used for both system/monitor, and CUDA rendering.
ciao Beppe

[Alexisbaydoun]

The weird thing is that on Live Viewer it says RTX Driver is being used 80%, but the computer is very slow i'm sure its not using it, and on the Task Manager its clear its only using 1%

[bepeg4d]

From Windows you can see only CPU, or GPU usage in OpenGL mode, not CUDA rendering.
As said, you need GPU-Z.
Check to have not the Priority set to High, or it is like having the option disabled.
You need to set Priority to Low,.
ciao Beppe

[funk]

From Windows you can see only CPU, or GPU usage in OpenGL mode, not CUDA rendering.
As said, you need GPU-Z.
Check to have not the Priority set to High, or it is like having the option disabled.
You need to set Priority to Low,.
ciao Beppe

GPU-Z is much better for this, but you can see Octane's GPU usage in Windows task manager as well.

Select the GPU in the left column, then change one of the right hand graphs to "Cuda". Cuda seems to be a new addition (?). I would previously use "compute_0" or "compute_1" to check gpu renderers.

EDIT: Yes it seems only my 1080 Ti shows Cuda. On the 670, I have to choose "Compute_0". I'm not sure why it's different on each card.

[Alexisbaydoun]

I did what you guys said and it seems ok, but now Cinema4D can't render!

I can see the render on the Octane Live Viewer but when i go to "Render to Picture Viewer" on Cinema 4D to render the image, it says "Not Enough Memory"..

Any idea why? It seems to be taking 90% of Memory/RAM but the scene isn't extremely advanced and i tried many ways to minimize it but still it tells me Not Enough Memory..

[bepeg4d]

@funk; interesting, didn’t know, thanks for sharing.

@Alexisbaydoun; please go to c4d menu Script/Console, (Shift+F10), and copy paste the log output, or share a screenshot after sending to PV.
Most likely you have different subdivision settings for viewport and final render in some c4d objects:

ciao Beppe

[Alexisbaydoun]

Thank you for the reply!

Here is the Console text:

Loaded Octane DLL:OctaneRender Studio 4.02.1 version:4020100 SDK:4.02.1
Octane Render VR for Cinema 4D V4.02.1-R3 built for:200 C4D vers:20059
C4D:20059 comp:[DESKTOP-5DKAFJD] OS:[WINDOWS 64 BIT] Windows 10, 64 Bit, Professional Edition (build 17763) opengl:460 sysInfo:32 versType:2
CPU:[AuthenticAMD, stepping 2, model 8, instruction family 15] speed:3.6 GHz numOfCpu:12Ht
Plugins:[houdiniconfig addons advanced render alembic archigrass bitmapfilter bpexchange browser c4dOctane-R20 ca ca2 cadexchange clothilde collada14 collada15 colorchoosergui compositing Cyc Types dwg dwgobjects dynamics exchanges expressiontag fbx gpurenderer hair i_skp iges io_obj licenseserver Light Types LightKit metrics mkmodeler mocca model mograph motioncam motiontracker nbp newman nodeeditor objects onlinehelp onlineupdater python relaxuv sculpt sculptbrushes shader sketch sky sla spacemouse substance teamrender texturemanager thinking particles tpoperators volumes walkthrough xpressocore xtensions ]
Light V(3), 20059 Studio, Windows
Cyc Object V(3), 20059 Studio, Windows
Light Kit Studio V(3), 20059 Studio, Windows
Light Kit Browser V(3.01), 20059 Studio_s, Windows
Activation time=11.08 sec.
VRAM used/free/max:0Kb/8Gb/8Gb Out-of-core used:0Kb RAM used:4.978Gb total:31.949Gb OpenGL free/total:0/0
Device:0 [GeForce RTX 2070]<Dis>[PT][7.5] Memory used/free/total:0Kb/8Gb/8Gb outOfCoreMem:0Kb p2pBytesUsed:0 temperature:31

I have used Subdivision Surface in the scene that's correct!

Can you let me know please how to fix this? Thanks

[Alexisbaydoun]

The scene i'm working with is becoming very strange.. Octane keeps saying "Render failure" and the part of the product that has "Subdivision Surface" keeps disappearing alone.. Notice the top part has disappeared although the layer is still there and I have added "Subdivision" to this part...

[aoktar]

As Beppe says that be sure subdivision objects have same subdiv values for render as editor. Also open "Console" window and post texts.