Package org.lwjgl.vulkan

Class EXTFragmentShaderInterlock

java.lang.Object
org.lwjgl.vulkan.EXTFragmentShaderInterlock
public final class EXTFragmentShaderInterlock extends Object
This extension adds support for the FragmentShaderPixelInterlockEXT, FragmentShaderSampleInterlockEXT, and FragmentShaderShadingRateInterlockEXT capabilities from the SPV_EXT_fragment_shader_interlock extension to Vulkan.

Enabling these capabilities provides a critical section for fragment shaders to avoid overlapping pixels being processed at the same time, and certain guarantees about the ordering of fragment shader invocations of fragments of overlapping pixels.

This extension can be useful for algorithms that need to access per-pixel data structures via shader loads and stores. Algorithms using this extension can access per-pixel data structures in critical sections without other invocations accessing the same per-pixel data. Additionally, the ordering guarantees are useful for cases where the API ordering of fragments is meaningful. For example, applications may be able to execute programmable blending operations in the fragment shader, where the destination buffer is read via image loads and the final value is written via image stores.

Name String
VK_EXT_fragment_shader_interlock
Extension Type
Device extension
Registered Extension Number
252
Revision
1
Extension and Version Dependencies
VK_KHR_get_physical_device_properties2 or Version 1.1
SPIR-V Dependencies
Contact
Other Extension Metadata
Last Modified Date
2019-05-02
Interactions and External Dependencies
Contributors
  • Daniel Koch, NVIDIA
  • Graeme Leese, Broadcom
  • Jan-Harald Fredriksen, Arm
  • Faith Ekstrand, Intel
  • Jeff Bolz, NVIDIA
  • Ruihao Zhang, Qualcomm
  • Slawomir Grajewski, Intel
  • Spencer Fricke, Samsung

  • Field Details

    • VK_EXT_FRAGMENT_SHADER_INTERLOCK_SPEC_VERSION

      public static final int VK_EXT_FRAGMENT_SHADER_INTERLOCK_SPEC_VERSION
      The extension specification version.
      See Also:

    • VK_EXT_FRAGMENT_SHADER_INTERLOCK_EXTENSION_NAME

      public static final String VK_EXT_FRAGMENT_SHADER_INTERLOCK_EXTENSION_NAME
      The extension name.
      See Also:

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FRAGMENT_SHADER_INTERLOCK_FEATURES_EXT

      public static final int VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FRAGMENT_SHADER_INTERLOCK_FEATURES_EXT
      Extends VkStructureType.
      See Also: