This repo serves as a proof-of-concept of using Metal to render graphics inside a SwiftUI View, which among other things allows for Metal Views (see MetalUI, either in this repository, or here) to work inside Xcode previews.
As of now this should just be git clone-able and build just fine right out of the box. Since this was refactored from an older project with the same name, there may be strange build bugs. An example of one – the only one I've encountered – is that I can successfully preview this in Xcode with the target set to 'My Mac', but it fails when I set the target to 'My Mac (Mac Catalyst).' I figured a switch like this would be fine since it seems to build fine for iPhone (simulator & real). Hopefully this is something relatively easy to figure out and I can update accordingly (and hopefully not too embarrassing!!). Another quick caveat: the aspect ratio is fixed (I know, embarrassing!!!). Maybe I'll be not terribly lazy and address that.
For now I intend to keep this minimal, and really just keep it a proof-of-concept. Perhaps if there is interest I will expand upon it in the future.