Bug / Error

[Refracty]

Hi face,
I have an error after reloading the Octane viewport.
Any ideas?
Thanks
Refracty

[roeland]

My guess is the scene is very heavy on geometry. We currently have a limit in how much memory is taken up by geometry, which is 2GB. This limit is there for performance reasons.

--
Roeland

[Refracty]

It is a complex scene but the Graphics Card has 12 GB and should handle it easily.
Why is there a limitation?
I need the scene to run.

[abstrax]

It is a complex scene but the Graphics Card has 12 GB and should handle it easily.
Why is there a limitation?
I need the scene to run.

As Roeland said, it's there because of performance. If it wouldn't be there everything would render ~10% slower. And no, currently we can't switch between those two modes. Octane 3 will allow larger geometry. Until then you have to reduce scene complexity.

[face_off]

You can reduce the number of triangles in the scene by selecting appropriate meshes, and in the Properties->Object window, tick Custom Mesh, click Adjust->Simple Controls, and move the slider towards "Fewer Polygon".

Paul

[Refracty]

Thank you Marcus and Face for the clarification.
Unfortunately I can not reduce the scene much more. It is a big architecture scene and I have already shrinked everything to a minimum.
My client is using VRay at the moment but I am working on bringing this project into Octane to have more instant feedback.
So lets wait for Octane 3...

[Refracty]

So is there any advantage of using a graphics card with more then 6GB VRam in Octane 2 ?
It looks like that the geometry limitation makes a 12GB Card useless.

[face_off]

Keep in mind the the render pass outputs (ie. the Viewport) take VRAM too - so if you render very large resolutions, it will take a lot if VRAM. Plus you 12GB can be used to store texturemaps.

Paul

[Refracty]

That is true. On the other side out of core rendering will minimize the VRam consumption for textures with acceptable performance loss.
Hopefully Version 3 will bring the solution for this heavy scene.
Cheers
R

[Refracty]

Using a different scene I am running into the same problem. I have a detailed Car interior with exterior on seperate obj files with more then 20.000 Polys. The TitanX shows only a consumption of 15 percent when I only load one of them. So much headroom.
But I am not able to load them together. That is a pitty because I thought Octane is now ready for Automotive Visualisation (of heavy tesselated cars) when the TitanX came up.
Can the geometry limit be removed easily? I need to work with Octane when doing this kind of renderings.