preferLowPowerDevice
An option for whether to select low-power-usage devices for Metal rendering.
Declaration
static let preferLowPowerDevice: SCNView.OptionDiscussion
The value for this key is an NSNumber object containing a Boolean value.
SceneKit uses this option when automatically selecting a Metal device on systems with multiple GPUs. If the value is true, SceneKit uses a device with low power usage requirements—for example, the integrated GPU on a MacBook Pro with both integrated and discrete graphics hardware.
Leaving this key unspecified is equivalent to setting its value to false. In this case, SceneKit chooses the most capable available Metal device.