VK_KHR_shader_clock(3)
VK_KHR_shader_clock
- Name String
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VK_KHR_shader_clock - Extension Type
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Device extension
- Registered Extension Number
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182
- Revision
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1
- Ratification Status
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Ratified
- Extension and Version Dependencies
- SPIR-V Dependencies
- Contact
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Aaron Hagan ahagan
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Other Extension Metadata
- Last Modified Date
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2019-4-25
- IP Status
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No known IP claims.
- Interactions and External Dependencies
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This extension provides API support for
GL_ARB_shader_clockandGL_EXT_shader_realtime_clock
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- Contributors
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Aaron Hagan, AMD
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Daniel Koch, NVIDIA
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Description
This extension advertises the SPIR-V ShaderClockKHR capability for
Vulkan, which allows a shader to query a real-time or monotonically
incrementing counter at the subgroup level or across the device level.
The two valid SPIR-V scopes for OpReadClockKHR are Subgroup and
Device.
When using GLSL source-based shading languages, the clockRealtime*EXT()
timing functions map to the OpReadClockKHR instruction with a scope of
Device, and the clock*ARB() timing functions map to the
OpReadClockKHR instruction with a scope of Subgroup.
New Enum Constants
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VK_KHR_SHADER_CLOCK_EXTENSION_NAME -
VK_KHR_SHADER_CLOCK_SPEC_VERSION -
Extending VkStructureType:
Document Notes
For more information, see the Vulkan Specification.
This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.