There are known performance issues with point cloud visualizations used on Mac-based platforms due to the rendering library that is used by default. These performance issues appear in the R2023a release of MATLAB and are experienced when using a Mac machine with an AMD graphics card configuration.
Workaround:
The workaround provided must be executed with no figure windows or apps open in MATLAB (such as pcviewer and the Lidar Viewer app). This enables the correct graphics library to be used on Mac-based platforms, after executing the commands.
To fix this issue, configure MATLAB to use a Mac-based graphics library by running these commands.
>> wm = matlab.internal.webwindowmanager.instance;
>> wm.setStartupOptions("ExtProcess", "--use-angle=metal");
NOTE
- You only need to execute the commands once per MATLAB session.
- Close all open MATLAB figure windows and apps before running the commands.
- The internal commands to execute are valid for R2023a or earlier, and may change in a future release. Because these commands are internal, they are not documented.
To revert back to the old graphics library, execute these commands:
> wm = matlab.internal.webwindowmanager.instance;
>> wm.setStartupOptions('ExtProcess', '');
To turn off the warning message received, execute these commands:
>> warning("off", "vision:pointcloud:Viewer3dMACIssue")
