I am a brand new user of Corel Painter 2021, although I did use the product some ten or twelve years ago on a client project so I have a little familiarity, albeit outdated (I am an experienced graphic/media software user in general). I am running Painter on a <6 month old Windows 10 pc, i910900X CPU @3.70GHz, two Nvidia RTX2070 Super GPUs with NVLink, 64GB RAM and fast P2 storage. I have to really try hard to get bad performance out of this machine, even with heavyweight 3d modelling and video editing software (I run a modest media production business).
When I installed Painter yesterday I ran the optimiser and got a score of around 9750, described as 'awesome' and suggesting I would have no issues with brush performance. And indeed I didn't. Everything was super slick and I didn't experience a single instance of lag with any brushes I used. I tinkered for three or more hours without a hitch,
Today, however, it's a very different story. Although I still get the same score when I run the optimiser, no matter what brushes I use, performance is dire, with lags of several seconds after most brush strokes before I can use the brush again. I have also had three crashes to desktop.I am not aware of any Windows update overnight that might have caused this and the only thing that I have knowingly added to the installation was the free brush pack available on the store.
I have started Painter while holding shift in order to start with a vanilla version but it has had no effect on performance.
Rather than blindly try lots of other potential remedies, may I please ask the group if there is any prior knowledge of this kind of thing and whether there are any prescribed steps I can take to either diagnose the root problem or, ideally, cure it.Thanks for any help.
2 thoughts, tho I have never run into the problem you describe:
1. Do anything like you used to but turn on task manager to track resource usages to look for a resource hog, including temporary disconnect from internet. Or try monitoring using Windows Resource Monitor or download free Process Explorer.
2. Start from a fresh PC boot and turn off every program you can except for Painter to see if any other program is causing a problem in Painter. And monitor the same resources as in 1. above to see any significant differences from 1. to 2.
Hi Doug, many thanks for taking the time to respond. I did indeed try using Task Manager/Windows Resource Manager and there was nothing out of the ordinary. Similarly I tried it from a fresh boot but same problem. Now here's the interesting part - I did another 'shift start' of Pinter but this time I selected the option to revert to a vanilla install (in other words to remove the free brush pack, which was the only thing I had added since first installing). This seemed to solve the problem. I rebooted again and all still good - performance was as before. What's interesting is the free brushes are still installed. So I don't know if that's a red herring or if the original installation somehow got messed up or what!
Anyway, suffice to say the issue has gone away, which is a great relief. I will monitor and report back if any developments. Thanks again for the assistance.