Vulkan 1.2 Specifications Released




Khronos Vulkan 1.2

 
The Khronos Group has released today the specifications of the new Vulkan 1.2 (Vulkan 1.1 specs have been released in 2018).

Proven API extensions integrated into new Vulkan core specification for improved GPU acceleration functionality and performance.

Beaverton, OR – January 15, 2020 – 6:00 AM PT – Today, The Khronos® Group, an open consortium of industry-leading companies creating advanced interoperability standards, announces the release of the Vulkan® 1.2 specification for GPU acceleration. This release integrates 23 proven extensions into the core Vulkan API, bringing significant developer-requested access to new hardware functionality, improved application performance, and enhanced API usability. Multiple GPU vendors have certified conformant implementations, and significant open source tooling is expected during January 2020.

Vulkan continues to evolve by listening to developer needs, shipping new functionality as extensions, and then consolidating extensions that receive positive developer feedback into a unified core API specification. Carefully selected API features are made optional to enable market-focused implementations. Many Vulkan 1.2 features were requested by developers to meet critical needs in their engines and applications, including: timeline semaphores for easily managed synchronization; a formal memory model to precisely define the semantics of synchronization and memory operations in different threads; descriptor indexing to enable reuse of descriptor layouts by multiple shaders; deeper support for shaders written in HLSL, and more.

“Vulkan 1.2 brings together nearly two dozen high-priority features developed over the past two years into one, unified core Vulkan standard, setting a cutting-edge bar for functionality in the industry’s only open GPU API for cross-platform 3D and compute acceleration,” said Tom Olson, distinguished engineer at Arm, and Vulkan working group chair. “Khronos will continue delivering regular Vulkan ecosystem updates with this proven, developer-focused methodology to both meet the needs and expand the horizons of real-world applications.”

Khronos and the Vulkan community will support Vulkan 1.2 in a wide range of open source compilers, tools, and debuggers by the end of January 2020. This includes the RenderDoc frame capture and debugging tool, the Vulkan conformance test suite, and the Vulkan SDK with support for both the ‘GPU Assisted’ and ‘Best Practices’ validation layers.

All GPUs that support previous versions of Vulkan are capable of supporting Vulkan 1.2, ensuring its widespread availability. As of today, five GPU vendors have Vulkan 1.2 implementations passing the Khronos conformance tests: AMD, Arm, Imagination Technologies, Intel, NVIDIA, plus the open-source Mesa RADV driver for AMD. Driver release updates will be posted on the Vulkan Public Release Tracker along with the status of other Vulkan ecosystem components.

Vulkan is an open, royalty-free API for high-efficiency, cross-platform access to modern GPUs, with widespread adoption in leading engines, cutting-edge games, and demanding applications. Vulkan is supported in a diverse range of devices from Windows and Linux PCs, consoles, and the cloud, to mobile phones and embedded platforms, including the addition of Google’s Stadia in 2019.

Find more information on the Vulkan 1.2 specification and associated tests and tools at Khronos’ Vulkan Resource Page. Sample code can be found in the Vulkan Unified Samples Repository. Khronos welcomes feedback on Vulkan 1.2 from the developer community through Khronos Developer Slack and GitHub.

The complete press release is available HERE.

 
Khronos Vulkan 1.2 - slide page 8

 
Vulkan 1.2 promoted the following extensions into the core API:
VK_KHR_8bit_storage
VK_KHR_buffer_device_address
VK_KHR_create_renderpass2
VK_KHR_depth_stencil_resolve
VK_KHR_draw_indirect_count
VK_KHR_driver_properties
VK_KHR_image_format_list
VK_KHR_imageless_framebuffer
VK_KHR_sampler_mirror_clamp_to_edge
VK_KHR_separate_depth_stencil_layouts
VK_KHR_shader_atomic_int64
VK_KHR_shader_float16_int8
VK_KHR_shader_float_controls
VK_KHR_shader_subgroup_extended_types
VK_KHR_spirv_1_4
VK_KHR_timeline_semaphore
VK_KHR_uniform_buffer_standard_layout
VK_KHR_vulkan_memory_model
VK_EXT_descriptor_indexing
VK_EXT_host_query_reset
VK_EXT_sampler_filter_minmax
VK_EXT_scalar_block_layout
VK_EXT_separate_stencil_usage
VK_EXT_shader_viewport_index_layer

 
As often, NVIDIA is the first to publish graphics drivers with Vulkan 1.2 support. You can download the GeForce 441.99 (Windows) or GeForce 440.48.02 (Linux) from THIS PAGE.

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