Khronos Blog Archives

Vulkan 1.2 Deepens HLSL Support HLSL support in Vulkan has come a long way since its introduction. Over the past couple of years HLSL in Vulkan has made amazing strides to hit a critical maturation point and earned the coveted label of production ready. HLSL in Vulkan has been achieved through integrating a SPIR-V backend into DXC, Microsoft’s open source HLSL compiler (the encircled section in Figure 1 below), and Khronos’ glslang. I

The original Vulkan synchronization APIs relied on two separate coarse-grained primitives: VkSemaphore and VkFence. Both of these were reusable binary-state objects with slightly different purposes and behavior. VkSemaphore allowed applications to synchronize operations across device queues. VkFence facilitated device to host synchronization. Together, they enabled applications to observe and control the execution of command buffers and other queue commands, but they inherited various limitations of the underlying OS and device mechanisms at the time which made them somewhat difficult to use.