RAM and performance, few questions about GTX580

NDru · Wed May 25, 2011 1:50 am

Hi, guys!

Tell me please, what if 3072 Mb of memory isn't enough for scene? Will it still be renderable? And how will performance change?
Is it possible to increase the performance up to fast level, which has fell in cause of memory lack by edding additional cards?

I'm planning to buy 2 GTX 580 especially for your render. If I buy it, will I be able to use both GPUs?
Sorry for my bad english. I am russian (vodka, bears, matrioshkas, lol)))

radiance · Wed May 25, 2011 2:30 am

Hi,

3GB is the limit if you have a 3GB scene, octane won't be able to push more into your GPU.
It's quite a large amount of memory though, if you make efficient scenes, you can render some detailed stuff with that amount of VRAM.
You can use any number of GPUs in your machine with the commercial version yes.

Radiance

NDru · Wed May 25, 2011 2:37 am

radiance wrote:3GB is the limit if you have a 3GB scene, octane won't be able to push more into your GPU

Does it means that Octane will not render at all?

You can use any number of GPUs in your machine with the commercial version yes

Of course. Thanx a lot!
Andrew

NDru · Wed May 25, 2011 3:35 am

By the way, didn't you think about a way to add in engine an ability to analize and re-convert (rescale, repack, etc) the textures with the selected by user multiplier, and add them to a temporary directory before render then to use lower part of memory?
Damn, it's hard for me to understand what has I written)

Wed May 25, 2011 8:43 am

I had a scene with 12 Million triangles last month and was able to render it. But client wanted 5 camera perspectives so I expanded the scene on some spots and 13million was the limit.
So I split the scene into 5 (for each camera view) and imported them seperately into Octane for render.

The small scenes had the benefit of faster import because each had around 5-8 million triangles now. So your 580 will perform well I guess.

NDru · Thu May 26, 2011 6:50 am

Well, I hope guys will make Octane work even if the scene is larger that the value of ram it needs. Like V-Ray Rt for example. But that render really sucks nowadays))) this is the only plus I think.