VkPhysicalDeviceShaderOCPMicroscalingTypesFeaturesEXT(3)

# VkPhysicalDeviceShaderOCPMicroscalingTypesFeaturesEXT(3) Manual Page

## Name

VkPhysicalDeviceShaderOCPMicroscalingTypesFeaturesEXT - Structure describing OCP microscaling types features that can be supported by the implementation

## C Specification

The `VkPhysicalDeviceShaderOCPMicroscalingTypesFeaturesEXT` structure is defined as:

    // Provided by VK_EXT_shader_ocp_microscaling_types
    typedef struct VkPhysicalDeviceShaderOCPMicroscalingTypesFeaturesEXT {
        VkStructureType    sType;
        void*              pNext;
        VkBool32           shaderFloat4;
        VkBool32           shaderFloat6;
        VkBool32           shaderFloat8UnsignedE8M0;
        VkBool32           shaderMXInt8;
    } VkPhysicalDeviceShaderOCPMicroscalingTypesFeaturesEXT;

## Members

This structure describes the following features:

- `sType` is a VkStructureType value identifying this structure.

- `pNext` is `NULL` or a pointer to a structure extending this structure.

- `shaderFloat4` indicates whether the implementation supports shaders with the `Float4EXT` or `BitcastExtractEXT` capabilities.

- `shaderFloat6` indicates whether the implementation supports shaders with the `Float6EXT` or `BitcastExtractEXT` capabilities.

- `shaderFloat8UnsignedE8M0` indicates whether the implementation supports shaders with the `Float8UnsignedE8M0EXT` capability.

- `shaderMXInt8` indicates whether the implementation supports shaders with the `MXInt8EXT` capability.

## Description

If the `VkPhysicalDeviceShaderOCPMicroscalingTypesFeaturesEXT` structure is included in the `pNext` chain of the VkPhysicalDeviceFeatures2 structure passed to vkGetPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. If the application wishes to use a VkDevice with any features described by `VkPhysicalDeviceShaderOCPMicroscalingTypesFeaturesEXT`, it must add an instance of the structure, with the desired feature members set to VK_TRUE, to the `pNext` chain of VkDeviceCreateInfo when creating the VkDevice.

Valid Usage (Implicit)

- VUID-VkPhysicalDeviceShaderOCPMicroscalingTypesFeaturesEXT-sType-sType
  `sType` must be VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_OCP_MICROSCALING_TYPES_FEATURES_EXT

Structure Chaining

Extends the structures

  - VkDeviceCreateInfo

  - VkPhysicalDeviceFeatures2

## See Also

VK_EXT_shader_ocp_microscaling_types, VkBool32, VkStructureType

## Document Notes

For more information, see the Vulkan Specification.

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

## Copyright

Copyright 2014-2026 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0