# VK_KHR_shader_terminate_invocation(3) Manual Page

## Name

VK_KHR_shader_terminate_invocation - device extension

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## Registered Extension Number

216

## Revision

1

## Ratification Status

Ratified

## Extension and Version Dependencies

VK_KHR_get_physical_device_properties2
or
Vulkan Version 1.1

## SPIR-V Dependencies

- SPV_KHR_terminate_invocation

## Deprecation State

- Promoted to Vulkan 1.3

## Contact

- Jesse Hall [GitHub]critsec

## Other Extension Metadata

Last Modified Date

  2020-08-11

IP Status

  No known IP claims.

Contributors

  - Alan Baker, Google

  - Jeff Bolz, NVIDIA

  - Jesse Hall, Google

  - Ralph Potter, Samsung

  - Tom Olson, Arm

## Description

This extension adds Vulkan support for the `SPV_KHR_terminate_invocation` SPIR-V extension. That SPIR-V extension provides a new instruction, `OpTerminateInvocation`, which causes a shader invocation to immediately terminate and sets the coverage of shaded samples to `0`; only previously executed instructions will have observable effects. The `OpTerminateInvocation` instruction, along with the `OpDemoteToHelperInvocation` instruction from the `VK_EXT_shader_demote_to_helper_invocation` extension, together replace the `OpKill` instruction, which could behave like either of these instructions. `OpTerminateInvocation` provides the behavior required by the GLSL `discard` statement, and should be used when available by GLSL compilers and applications that need the GLSL `discard` behavior.

## New Structures

- Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:

  - VkPhysicalDeviceShaderTerminateInvocationFeaturesKHR

## New Enum Constants

- `VK_KHR_SHADER_TERMINATE_INVOCATION_EXTENSION_NAME`

- `VK_KHR_SHADER_TERMINATE_INVOCATION_SPEC_VERSION`

- Extending VkStructureType:

  - `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_TERMINATE_INVOCATION_FEATURES_KHR`

## Promotion to Vulkan 1.3

Vulkan APIs in this extension are included in core Vulkan 1.3, with the KHR suffix omitted. External interactions defined by this extension, such as SPIR-V token names, retain their original names. The original Vulkan API names are still available as aliases of the core functionality.

## Version History

- Revision 1, 2020-08-11 (Jesse Hall)

## See Also

No cross-references are available

## 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.

## Copyright

Copyright 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0