I'm a customer of Redshift Render, it's a GPU render engine that works as a plugin for popular 3D programs. It only runs on Nvidia/CUDA GPUs. Redshift were recently bought by Maxon, makers of Cinema 4D, the biggest 3D application on the Mac. Redshift have just released a beta of version 3.0 of their software, on their customer forum this week someone asked if Redshift had a future on the Mac - a lot of us have been worried that Redshift would abandon the Mac because of the CUDA/Nvidia situation. Their reply: "Finally, regarding macOS, there are a few developments (and on multiple fronts!) but we can’t say anything due to the NDAs in place. We might be able to talk more in the coming months. One thing we can say without breaching any NDAs is that we’re not abandoning the platform! So please stay tuned! " I'm taking that as extremely positive news about the future of 3D on the Mac. Maybe things have been worked out with Nvidia, or maybe Redshift has been ported to Metal, or possibly even both? Whatever happens it's encouraging that something is going on in the background with regard to pro 3D on the Mac. Roll on WWDC.