For running my app on devices with P3 screens, to take advantage of the P3 colors, which MTLPixelFormat is the proper one to use for my MTKView? My app is for iOS, but it’s nice to be able to debug on the simulator or as a Catalyst app.
Right now, I’ve been using MTLPixelFormatBGR10_XR_sRGB and MTLPixelFormatBGRA10_XR_sRGB per the recommendation in WWDC 2016 session 605 for iOS support of P3 color. This appears to work fine on iOS devices, but on my Apple silicon Mac, when running as a Catalyst app, the colors sometimes look lighter than they should, but it doesn’t always happen. When I run in the simulator on this Mac, my app crashes. When I was using an Intel Mac (with an sRGB screen), I was having my app render in sRGB-only with MTLPixelFormat.bgra8Unorm. MTLPixelFormat.bgra8Unorm also works fine on my Apple silicon Mac, but of course, I’m not getting the P3 color space.
For Apple Silicon Macs, as the GPU hardware is more like an iOS device than like an Intel Mac, should the same pixel formats work on an Apple silicon Mac as on iOS devices? Or are the pixel formats that work with Apple Silicon Macs the same as those on Intel Macs?
