vulkan-3.26.1: Bindings to the Vulkan graphics API.
Safe HaskellSafe-Inferred
LanguageHaskell2010

Vulkan.Extensions.VK_EXT_shader_demote_to_helper_invocation

Description

Name

VK_EXT_shader_demote_to_helper_invocation - device extension

VK_EXT_shader_demote_to_helper_invocation

Name String
VK_EXT_shader_demote_to_helper_invocation
Extension Type
Device extension
Registered Extension Number
277
Revision
1
Ratification Status
Not ratified
Extension and Version Dependencies
VK_KHR_get_physical_device_properties2 or Version 1.1
Deprecation State
Contact

Other Extension Metadata

Last Modified Date
2019-06-01
Interactions and External Dependencies
  • Promoted to Vulkan 1.3 Core
IP Status
No known IP claims.
Interactions and External Dependencies
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 Structures

New Enum Constants

New SPIR-V Capability

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.

Version History

  • Revision 1, 2019-06-01 (Jeff Bolz)

    • Initial draft

See Also

PhysicalDeviceShaderDemoteToHelperInvocationFeaturesEXT

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.

Documentation

type EXT_SHADER_DEMOTE_TO_HELPER_INVOCATION_EXTENSION_NAME = "VK_EXT_shader_demote_to_helper_invocation" Source #