Extension and Version Dependencies
VK_KHR_get_physical_device_properties2
or
Version 1.1
SPIR-V Dependencies
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SPV_EXT_demote_to_helper_invocation == Deprecation State
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Promoted to Vulkan 1.3
Contact
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Jeff Bolz jeffbolznv
Other Extension Metadata
- Last Modified Date
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2019-06-01
- 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_EXT_demote_to_helper_invocation
-
- Contributors
-
-
Jeff Bolz, NVIDIA
-
Description
This extension adds Vulkan support for the
SPV_EXT_demote_to_helper_invocation
SPIR-V extension.
That SPIR-V extension provides a new instruction
OpDemoteToHelperInvocationEXT allowing shaders to “demote” a fragment
shader invocation to behave like a helper invocation for its duration.
The demoted invocation will have no further side effects and will not output
to the framebuffer, but remains active and can participate in computing
derivatives and in group operations.
This is a better match for the “discard” instruction in HLSL.
New Enum Constants
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VK_EXT_SHADER_DEMOTE_TO_HELPER_INVOCATION_EXTENSION_NAME -
VK_EXT_SHADER_DEMOTE_TO_HELPER_INVOCATION_SPEC_VERSION -
Extending VkStructureType:
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VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_DEMOTE_TO_HELPER_INVOCATION_FEATURES_EXT
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Promotion to Vulkan 1.3
Functionality in this extension is included in core Vulkan 1.3, with the EXT suffix omitted. The original type, enum and command names are still available as aliases of the core functionality.
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.