OTOY Forums

Hey everyone!

Sorry that a new user is already asking so many questions but I guess that's how it goes, haha.
Let me know if it would be better to create one single huge topic instead of multiple ones through the week.

I have a GTX 770 2GB build into my PC (upgrading soon) and noticed quite a big difference between the standalone and the modo plugin in terms of speed.

Here are a few technical facts first:
- Modo 801 SP4 as well as 901 tested with the current Octane Plugin 2.23.2
- Standalone Ver. 2.23 as well

Loading in a DAZ Model and rendering the same parts I noticed a performance difference of 5-15 mMSamples per second (ms/s).
I compared the settings and they seem to be the same.
Direct Lighting, camera positions as closely matched as possible, no aperature, ...

Anyone an idea why there is such a performance difference between the plugin and the standalone?
Did I miss a tiny setting that's different?

Thanks a lot for your guys help already!

I just tested a medium size scene in Modo and then exported as OCS, loaded into Octane Standalone and tested there....

OctaneRender for Modo : 1.65 MS/s
OctaneRender Standalone : 1.65 MS/s

Do you have a separate card to your GTX770 as your display adapter? If so, you should get identical render times. If not, Modo's OpenGL Viewports will be using some of your GTX770 clock cycles for the Modo preview window, so the render will run slower in Modo. Also, is your Render Priority set the same in both Modo and Octane Standalone?

Paul

Thanks a lot for your quick reply face_off!

Sadly I don't have a seperate card to my GTX 770 yet and I also don't have a CPU with integrated graphics I could use for that.
Must be the Modo's OpenGL Viewport then, which would make totally sense now as you mentioned it.
I set the render priority in Modo to High and the Standalone is set to High by default I suppose? Didn't find a setting for it.

Regarding a seperate card:
If I'd buy a GTX 980ti, would there be a possibility to use the GTX 770 for driving my displays / Modo's viewport, while still using the 980 Ti for everything else aside Octane, like Games?


Thanks a lot for your help!

If I'd buy a GTX 980ti, would there be a possibility to use the GTX 770 for driving my displays / Modo's viewport, while still using the 980 Ti for everything else aside Octane, like Games?

Yes - just plugin your monitor into the GTX770, and disable Octane rendering on that card so it is just using the 980. You will probably need to disable SLI, which will impact games using both cards.

Paul