![]() Maybe that is what is behind the fan spinning issue. Hopefully it will last for the life of the app.Ĭompared to older graphics frameworks, Metal is supposed to be a GPU hog. When you create an app, you must decide on a graphics framework. UA's Luna developers decided to use Metal. Maybe UA hasn't taken advantage of this feature and it might be something that will improve single GPU performance in a future update. That potentially casts the blame for the fan issue on both Apple and UA.įurther, note: Apple's Metal Memory De-bugger's analyzes "Metal for Pro Apps how your resources are configured." The de-bugger "suggests improvements, so you can deeply optimize your game or app to take full advantage of Metal." It also analyzes how your resources are configured and suggests improvements, so you can deeply optimize your game or app to take full advantage of Metal.Ĭlick to expand.The fact is that there is sharing of tasks with multiple GPUs. The Metal Memory Debugger gives fine-grained insight into how much memory Metal objects and rendering resources consume at runtime. Three well-considered groupings allow you to easily target functionality that's common across all Metal-enabled GPUs, access unique capabilities of Apple-designed GPUs, and better harness supported third-party GPUs on macOS. ![]() ![]() And enhancements to CAMetalLayer give you access to the High Dynamic Range capabilities of Pro Display XDR.ĭeveloping with Metal is even easier with the dramatically simplified GPU Families. Metal Peer Groups make it easy to rapidly share data between multiple GPUs in Mac Pro without transferring through main memory. Professional content-creation apps can take advantage of outstanding enhancements in Metal on macOS Catalina. So what is Metal? From the Apple Developer site I found this: So is Luna the problem or is the problem rooted elsewhere?Īpparently the Apple Metal graphics framework is the engine that powers the graphics you see in Luna. But what card? And what set of factors will determine how powerful a card you need? It's possible that an eGPU breakout box with a more powerful card could be required. Or is the internal card always taking the load for the operating system? What about any other application that's running at the same time? Like plugin interfaces? Or a synth editor? It is unclear to me as to whether the eGPU takes over all of the graphics processes in operation while Luna is running. Third, there is not enough evidence to determine whether a Sonnet Puck will allow you to run Luna without fan noise on all Macs. But I've been watching this subject across multiple threads and Joe is the only Luna user to report a result that I've seen. I am not questioning his results I am hoping there will be more users with the same positive result. Second, Joe's post is only one case of anecdotal evidence. This won't help with TB 1 or TB2 equipped Macs. I say 'potentially' because you must have a TB3 equipped Mac to use an external card to take the load off of the built in graphics of your Mac. Click to expand.So you could potentially be able to get an eGPU that will stop fan noise. ![]()
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