WARNING: Render has failed

[jscottsmith]

I'm working on a scene with lots of proxied vegetation. I've hit the point where adding one plant causes the Octane preview to fail. It sounds like I've maxed out the graphics cards's RAM, but I don't see any indication of that.

At the top of the viewport it says: Mem: 2.670/5.572 GB. I'm running two GTX GeForce GTX 780 cards.

I'm almost done with this job, but this presents a real problem. What's the fix?

[Stahlwolle]

Hey,

im not sure but if i understood right the GF 780ti got 3GB of RAM. And the RAM is not added if you use more Cards because the scene has to be loaded in each cards memory.
so... if you got 2.8 Gigs of RAM loaded it sounds like you got close to the limit here, perhaps a bit over the limit? you dont have 6 gigs available because of 2 cards with each 3 gigs of ram!

[jscottsmith]

That makes sense. If that's correct, I have two suggestions/requests for the folks at Otoy .

1 - Show the available vram in the header stats - not the total ram.

2 - When a scene exceeds that limit, rather than crashing, give us a way to know the total memory being requested so we can have an idea what needs to be done.

[grimm]

Also if you have your monitor(s) plugged into one or both GPUs they will take up some of the vram depending on the resolution you have them set to. To get full use out of your 780's you will need to add an additional card just for your monitor(s). If you are running version 2.1+ of Octane you can turn on the out-of-core texture memory use. You might save some vram so your scene will fit?

[jscottsmith]

I'm using a third card for display, so that's not an issue. I'm on v2.15, but I'm not familiar with the setting you mentioned, and I haven't found it yet. Care to give me a nudge in the right direction?

[grimm]

Hmm, I'm not sure which version it first came out in then. I'm using 2.22.2 and the setting is in the Preferences, under the Out-of-core tab. It slows Octane down a bit, but it's better than not being able to render at all.

[jscottsmith]

Ok. After some searching, and since you said 2.22.2, I'm suspecting you're using standalone. I'm using MAX.

I've upgraded to the 2.21. plugin, which the release post says supports Out-of-Core, but I still don't see any options to enable it.

[jscottsmith]

Note: Moved here ... http://render.otoy.com/forum/viewtopic.php?f=27&t=45819