![]() ![]() MacOS does not natively support Vulkan, the Khronos group's official successor to OpenGL. It reduces driver overhead and improves multithreading, allowing every CPU thread to send commands to the GPU. Metal reduces CPU load, shifting more tasks to the GPU. Metal makes use of the homogenized hardware by abandoning the abstraction layer and running on the "bare metal". As time went on, Apple has shifted its efforts towards building its hardware platforms for mobile and desktop use. At the time, moving to OpenGL allowed Apple to take advantage of existing libraries that enabled hardware acceleration on a variety of different GPUs. Apple chose OpenGL in the late 1990s to build support for software graphics rendering into the Mac, after abandoning QuickDraw 3D. OpenGL is a cross-platform graphics framework designed to support a wide range of processors. ![]() The graphics frameworks OpenGL and OpenCL are still supported by the operating system, but will no longer be maintained developers are encouraged to use Apple's Metal library instead. MacOS Mojave deprecates support for several legacy features of the OS. This requires using a patch to modify the install image. It is possible to install Mojave on many older Macintosh computers that are not officially supported by Apple. Mojave installations convert the installation volume to Apple File System (APFS), if the volume had not previously been converted from HFS+. Some features are not available on all compatible models. MacOS Mojave requires at least 2 GB of RAM as well as 12.5 GB of available disk space to upgrade from OS X El Capitan, macOS Sierra, or macOS High Sierra, or 18.5 GB of disk space to upgrade from OS X Yosemite and earlier releases.
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