How many Gpu does live preview use?

[ten]

As topic just wondering how many gpu's the live preview uses in c4d? Can it use multiple or is that just for rendering?

I only ask as my second Titan sees no use in live preview even though it's ticked in settings.

Also, what does the 'use pri' tick box do that is next to the video card list in settings please.

Ten

[aoktar]

all gpus. priority is a option to decrease usage of gpu's. this gives more cycle to opengl and viewport for better response.
So you should see all gpu's in Live Viewer. You say that's selected but you can see a usage in rendering.
What do you see when close and open the settings window? Are all gpus selected or partially?

[ten]

Ok I found the issue, the live viewer GPU info incorrectly displays for my 670.

So if you look at attached pic, even though the two titans are selected in settings and the 670 is not, in the live viewer info it looks like one titan is being use and the 670. With the windows gpu meters I can see both titans being used. Guess its a bug?

ten