Help with very complex scene.

[Dakati]

I just purchased octane for blender. It works fine and quickly on small scenes. I just loaded up one of my scenes that pretty small but contains some particles in it, On switching to render view it hands at sending stuff to server, then hangs on refreshing server and never actually gets to rendering, Any ideas?

[grimm]

We need more information, like your card, how much memory you have, how many cards, etc. I have been working on a fairly large project that has a lot of particles and it does slow things down quite a bit. At first I wasn't waiting long enough, but it did start to render after about a minute or so. It might depend on how fast your card is, mine is an old GTX460 so it's slow compared to the new cards.

Jason

[Dakati]

Hey thanks for the quick reply.

I have two 780s in sli working on the project. What it is working with molecules that emit from a cube all at the same time so the cube becomes a solid particle. When i start with very few particles (like 50) it works like normal, but as I add more and more it becomes exponentially slower. for a relatively small size scene it takes a great deal of time. It says its sending the global something, Then says refreshing, then final the images loads, or the scene crashes. If I turn on cycles the complex scene loads instantaneously.

I think it has something to do with the octane server being a middle man.

[grimm]

I don't know if it's the reason for your issue, but do not put the cards in sli mode when using Octane. Octane doesn't need it to be on and it can cause issues. What are you using your particles for? And do you have the mesh set to "scatter"?

Jason

[Dakati]

The cards aren't currently in SLI mode. The scene is a ton of small circle that flow around and become some text. I don't think i tried putting it in scatter. I will defiantly give that a try tomorrow when I am on.

Thanks for the tips.
Chris.

[Dakati]

I don't know if it's the reason for your issue, but do not put the cards in sli mode when using Octane. Octane doesn't need it to be on and it can cause issues. What are you using your particles for? And do you have the mesh set to "scatter"?

Jason

Thank you so much sir, scatter seems to have done the trick! Anyone know the difference between scatter and "as is"?

[grimm]

Excellent! There are two places where you can set the mesh type. The first is in the render tab and it globally controls how the scene is sent and handled to the server (and Alembic files). The "as is" setting tells Octane to use the individual (local) mesh type settings, the other settings will override those and make every mesh be of that type.

The other place is on the mesh tab where you can locally set the type. This is better than the global setting which should be set to "as is" and probably not changed, unless your scene will work better if it is set. This is how I understand it to work, YMMV.

Jason

[JimStar]

http://render.otoy.com/manuals/Blender/?page_id=575

[Dakati]

http://render.otoy.com/manuals/Blender/?page_id=575

Thanks for this, and am currently trying to work with displacements. Are they not supported in blender. All i manage to get is a black surface.

[mib2berlin]

Hi, it is supported in version 2.
You have to unwrap your object to get it to work.

Cheers, mib