The macOS screen recording tool doesn't appear to support recording HDR content (f.e. in QuickTime player). This tool can record from the camera using various YCbCr 422 and 420 formats needed for HVEC and ProRes HDR10 recording, but doesn't offer any options for screen recording HDR. So that leaves in-game screen recording with AVFoundation. Without any YCbCr formats exposed in Metal api, how do we use CVPixelBuffer with Metal, and then send these formats off to the video codes directly? Can we send Rec2020 RGB10A2Unorm data directly? I'd like the fewest conversions possible.

CMake calls through to xcodebuild clean, but this fails since custom build directories are set. The current workaround is to have to trash the entire CMake build folder. With many subprojects this then takes a long time to rebuild. Can Apple please fix this? Here I have a project with multiple targets (a fake workspace). CMake can only generate xcprojects and not xcworkspace files. Visual Studio and Android Studio both integrate CMake into the IDE. But building iOS and macOS universal apps is still not simple with CMake. Can Xcode team support CMake better in general? cmake --build . --target clean  xcodebuild -project foo.xcodeproj clean -target ALL_BUILD -parallelizeTargets -configuration Debug -hideShellScriptEnvironment Command line invocation:   xcodebuild -project foo.xcodeproj clean -target ALL_BUILD -parallelizeTargets -configuration Debug -hideShellScriptEnvironment User defaults from command line:   HideShellScriptEnvironment = YES note: Using new build system note: Building targets in parallel error: Could not delete `build/lib` because it was not created by the build system. error: Could not delete `build/app1` because it was not created by the build system. error: Could not delete `build/app2` because it was not created by the build system. warning: Refusing to delete `build` because it contains one of the projects in this workspace: `build/foo.xcodeproj`. CLEAN FAILED