caisson posted at 11:37AM Thu, 24 October 2019 - #4368116

mr_phoenyxx, the problem is that the 1080Ti and Poser are speaking different languages and do not understand each other. The 1080Ti was released in 2017, Poser 11 in 2015. GPU rendering is still relatively new and nowhere near as mature or stable as CPU rendering, and the various cards have gone through major changes internally over time. It could be that the slowdown you've seen is to do with changes in the graphics drivers. It isn't Poser because Superfly has not been updated since the initial release. Octane Render is exactly the same - when I was using it, every time a new round of Nvidia cards got released it would have to be updated to work properly. At least you don't have a new RTX card as they just don't work at all.

So I think that both Poser and the 1080Ti are working, they just cannot communicate efficiently. If your rendering speed is good when using two cards together then that is your best solution for GPU rendering right now; alternatively switch to CPU. The long term solution is for Superfly to get an update (and I hope that it's high on the dev teams list).

I am aware of all of that. I've had similar issues in other software packages with updating NVidia drivers and seeing changed behavior. However, that is not the case this time. What you are saying does not make sense. I was already running Poser 11.1, which is older than Poser 11.2 as you indicated. I'm not sure when the 1080 Ti was released, but I will take your word for it as far as Poser 11 being older than the 1080 Ti.

My NVidia drivers were already running the latest iteration. My Windows was already as up-to-date as it could be. Those updates were actually done the week before. And my 1080 Ti was working properly in Poser 11.1 with all those updates installed. I am running the exact same drivers, the exact same hardware, the exact same OS as what I was using with Poser 11.1. The only change was moving to 11.2, which then broke my 1080 Ti in Poser. So yes, it's a Poser issue, as that is the only thing that changed. They may not have announced that they changed the version of Superfly, but they have clearly done something.

Which I mean that isn't surprising. It's a different version. Obviously they have changed things. I am also not 100% convinced that it's the 1080 Ti. What I am saying is that there is some combination of specific things happening on my computer that has broken GPU rendering in Superfly with my 1080 Ti by itself. At the moment, the only tests I can think to do seem to indicate that the problem is the 1080 Ti or its drivers. But the change wasn't done in the hardware or in NVidian's drivers. The change was in Poser. So in my opinion, Bondware is responsible for fixing it.