QRhiMetalInitParams Struct

Metal specific initialization parameters. 更多...

详细描述

注意： This is a RHI API with limited compatibility guarantees, see QRhi 了解细节。

A Metal-based QRhi needs no special parameters for initialization.

QRhiMetalInitParams params;
rhi = QRhi::create(QRhi::Metal, ¶ms);
					

注意： Metal API validation cannot be enabled programmatically by the QRhi . Instead, either run the debug build of the application in XCode, by generating a .xcodeproj file via cmake -G Xcode , or set the environment variable METAL_DEVICE_WRAPPER_TYPE=1 . The variable needs to be set early on in the environment, perferably before starting the process; attempting to set it at QRhi creation time is not functional in practice. (too late probably)

注意： QRhiSwapChain can only target QWindow instances that have their surface type set to QSurface::MetalSurface .

Working with existing Metal devices

When interoperating with another graphics engine, it may be necessary to get a QRhi instance that uses the same Metal device. This can be achieved by passing a pointer to a QRhiMetalNativeHandles to QRhi::create (). The device must be set to a non-null value then. Optionally, a command queue object can be specified as well.

The QRhi does not take ownership of any of the external objects.

内容

• 详细描述

• Working with existing Metal devices