On Windows and DirectX, you have the concept of Shared Handles, which are essentially handles you can pass between process boundaries. It also comes with a mute

On Windows and DirectX, you have the concept of Shared Handles, which are essentially handles you can pass between process boundaries. It also comes with a mutex mechanism to signal who is using the resource at the moment. Fun fact - Windows at the kernel level works with the concept of 'objects', which can be file handles, window handles, threads, mutexes, or in this case, textures, which are reference counted. Sharing a particular texture is just exposing the handle to multiple processes. A bit of reading if you are interested: https://learn.microsoft.com/en-us/windows/win32/direct3darticles/surface-sharing-between-windows-graphics-apis?redirectedfrom=MSDN#dxgi_1.1_synchronized_shared_surfaces https://learn.microsoft.com/en-us/windows/win32/direct3darti...