Render failure. Triangle count is over the limit?

[JEEK]

Hey guys,

I've been working on this scene like crazy, and when I finally put all the elements together, Octane won't render it. In the Live Viewer, it says :

Render Failure!!! Check Console window and Octane log window. triangle count:19.41m can be high. Try to decrease polygon counts.

I'm on VR 3.07-R2.

Now I've started reading on this error, and it seems like the triangle count limit was increased to >70m triangle count for VR 3.0, yet it still stops at 19m?

I have 16 Gigs of RAM and 8GB of VRAM (GTX1080.

Here's the output in the console window :

Started logging on 08.04.18 04:52:34

OctaneVR 3.07 (3070007)

shader error...
shader error...
--------------------------- EXPORT LOG ---------------------------
Create Materials....
shader error...
shader error...
Tried to access pin via an invalid ID P_DIFFUSE (30)
Tried to access null node pin
Export materials time= 11686.272 ms
Collect objects time= 39.169 ms
Mesh creation time = 6173.369 ms.
MB:0/0 ST/MOV:0/1022 Nodes:2241 Tris:0 DispTris:0 Hairs:0 Meshes:0
VRAM used/free/max:273Mb/4.618Gb/8Gb Out-of-core used:0Kb total used RAM:15.318Gb
Total export Time = 19007.838 ms
Out-of-core memory limit exceeded
----------------------------------------------------------------------------------------
<<< Render failure detected!!! >>>
Please check render statistics to solve the problem.
MB:0/0 ST/MOV:0/1022 Nodes:2241 Tris:19.752m DispTris:22k Hairs:0 Meshes:1k
Device:0 TotMem:8Gb rtData:262Mb film:11Mb geo:3.193Gb node:56Kb tex:1.13Gb unavailable:2.89Gb temperature:53

Is there anything that stands out? Is my only option to reduce the triangle count, or to render in different parts?

Thank you so much for your time. Really appreciate it.

[JEEK]

Quick update; realized that 1 group of objects - instanced 13 times - contained the 3D model of a curtain, which by itself had a crap load of polygons. I used the "Polygon Reduction" tool on it and for once it worked surprisingly well.

Things are now smooth and render at a reasonable pace.

Still doesn't explain why I'm limited at 19.4m triangle count still, but I can keep on working.

Thanks!

[bepeg4d]

Hi,
firstly, always use the Render Instance option to reduce the poly count, then note that you are loosing ~2.9GB, because of os and monitor, so you have roughly only ~5GB of VRAM availabe.
Having a dedicated card for display can give you more VRAM.
ciao Beppe

[JEEK]

Gotcha. Thank you very much Beppe.