OTOY Forums

Does anyone have any data on how much speed up one gets if he used Octane for Blender rendering as opposed to using the cpu?
Would this be an animation or single render?
Thanks.

Hi,

This is very difficult to say as both engines are very different and act different on different types of scenes.
And, it also depends on what GPU you have.
I suggest you try the demo to see how it performs for the stuff you want to render...

Radiance

It really depends on if you are talking about rendering full AO. If so then yeah. You get a lot more options with Octane too. If you're talking about the internally, non AO based der engine, then a lot depends. I've had scenes that rendered faster in Blender, and scenes that rendered faster in octane. Granted it is rarer for them to be faster in blender.

I am thinking of getting an ASUS Maximus III gene or Rampage II gene.
These give me dual X16 on a uatx mainboard. The first is a socket 1156 and two X8 speeds and the second give me a socket 1366 and two X16 speeds.

If I am making an animation, I assume that a GTX465 or higher should blow away any cpu head to head.

Thanks.

Yup, it should If you are doing naimating go for the x16 slotted mobo a it will help your load times of each frame. Not by much, but some.

I believe the work flow will be like this:
Save Blender file
File -> Export -> Octane
Run Octane
Open File
I guess the last is to animate.
Corrections welcomed.
Thanks.

There is a blender plugin for octane that somewhat automates the animation process. Setup your blender scene, load the plugin. Export the scene to octane (via plugin). setup your octane scene. Save. Close. back in blender tell it to animate. Sit back and watch the windows open, render, close, repeat.

Looking at the render of the Lamborghini on youtube, would it take a long time for an i5 or i7 to render?
I think I need to buy a more powerful system to see exactly how much time saving I am getting.

Will Octane ever support ATI? I know that ATI does not have CUDA.
What do they have that is comparable to cuda, if any?
I have seen a raytrace demo on youtube for ATI cards.
I do not remember what they are running.
Maybe you could call it Fuel. SGI had a computer called Fuel.
Everytime I read Octane I think of SGI Octane.
Are we on the virge of a new type of renaissance?
Cheers.

ATI's native gpu programming tool is called Stream. The idea of opening Octane to ATI cards wont use Stream though, it will use openCL which will use pretty much any type of processing unit hooked up to the computer. It is still a ways from being properly developed, openCL that is, so when the time is right Radiance has said they might move in that direction.
Trying to render the lamborgini scene on an i7 would be ridiculous. The system they are showing uses multiple gtx480's. I think it is supposed to be something like 25x the speed of an i7. As much as I love the i7's, it would probably take a day at least to render with the same quality.

Great Googleplex,that tells me alot. I believe the cpu is for one thing, that is for running programs.
You have me sold on the GPU Raytracing concept.
I guess I could put a GTX480 with my 235e and get a pci video card for win7, but I had rather build another system instead.

Cheers.