/* UnrealEngine\Engine\Source\Runtime\RenderCore\Public\RenderingThread.h *//** The parent class of commands stored in the rendering command queue. */class RENDERCORE_API FRenderCommand{public: ? ?// All render commands run on the render thread ? ?static ENamedThreads::Type GetDesiredThread() // 所有渲染指令都必須在渲染線程執(zhí)行. ? ?{ ? ? ? ?check(!GIsThreadedRendering || ENamedThreads::GetRenderThread() != ENamedThreads::GameThread); ? ? ? ?return ENamedThreads::GetRenderThread(); // 開啟渲染多線程時，返回渲染線程。不開啟渲染多線程時，返回GameThread ? ?} ? ?static ESubsequentsMode::Type GetSubsequentsMode() ? ?{ ? ? ? ?// Don't support tasks having dependencies on us, reduces task graph overhead tracking and dealing with subsequents ? ? ? ?return ESubsequentsMode::FireAndForget;