Class EXTFragmentShaderInterlock


  • public final class EXTFragmentShaderInterlock
    extends java.lang.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
    Contact
    Last Modified Data
    2019-05-02
    Interactions and External Dependencies
    Contributors
    • Daniel Koch, NVIDIA
    • Graeme Leese, Broadcom
    • Jan-Harald Fredriksen, Arm
    • Jason Ekstrand, Intel
    • Jeff Bolz, NVIDIA
    • Ruihao Zhang, Qualcomm
    • Slawomir Grajewski, Intel
    • Spencer Fricke, Samsung
    • Field Detail

      • VK_EXT_FRAGMENT_SHADER_INTERLOCK_SPEC_VERSION

        public static final int VK_EXT_FRAGMENT_SHADER_INTERLOCK_SPEC_VERSION
        The extension specification version.
        See Also:
        Constant Field Values
      • VK_EXT_FRAGMENT_SHADER_INTERLOCK_EXTENSION_NAME

        public static final java.lang.String VK_EXT_FRAGMENT_SHADER_INTERLOCK_EXTENSION_NAME
        The extension name.
        See Also:
        Constant Field Values
      • 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:
        Constant Field Values