Olivier St-Amand

Ok, a bit more info from the devs. The only metal cards that are supported are the ones in some MacBook Pro models. This means, sadly, that Affinity is unusable for me. Luckily for the company, I'm a special case! :-)

Thanks. I created a thread there. Hopefully I'll be able to buy Affinity to finally replace Photoshop. :-)

Just did the check you recommended, and yes, it's recognized and supported with my RX560. Anyway I can contact the devs directly?

Thanks for the replies. I can select Metal in the drop down menu (with OpenGL and Software), but I can't click the "Hardware Acceleration: Enable Metal Compute Acceleration" check box. It says that Affinity couldn't detect a Metal compatible GPU. But the RX560 is Metal capable. As a proof: World of Warcraft now requires a Metal aware OS (10.13+) and a Metal capable GPU (which the RX560 is), and I can play WoW on my system. Sadly, this is pretty much a deal-breaker for me unless I can find a solution.

I've tried all four settings with similarly slow results. Just to be sure: when they say changing that setting requires a restart, they mean an app restart, right? Not a full system restart? I'm very surprised. For me it's the opposite. Are you using recent version of Photoshop? As far as old CPUs and RAM size, my CPU is old, but it's still a 4 cores / 8 threads 3.33 GHz Nehalem that runs fine with Photoshop. And my 16GB of ram could be more, but then again, all my apps run fine. Last question: is it normal that Affinity ignores my RX560? The option to use it is greyed out.

Hello, New here, and very intrigued by Affinity. Finally a serious alternative to Photoshop! Quick question to begin. I've been playing with the trial (and watching the tutorials, great job on those!) and I'm loving it so far. The only thing that worries me, on my system (2009 MP with RX560 on 10.13.5), is the performance. It's rather slow. Much slower than Photoshop, especially the liquify persona. I've checked the performance preferences, but that didn't help. Although the OS and card are Metal capable, the Metal options are greyed out. I know my system is old, but given that I plan on keeping it until the 2019 (or 2020? gasp!) Mac Pro, performance is an important concern. Is it normal to get such slow performance on my old system? Thanks