VkPhysicalDeviceSamplerFilterMinmaxProperties(3)

# VkPhysicalDeviceSamplerFilterMinmaxProperties(3) Manual Page

## Name

VkPhysicalDeviceSamplerFilterMinmaxProperties - Structure describing sampler filter minmax limits that can be supported by an implementation

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## C Specification

The `VkPhysicalDeviceSamplerFilterMinmaxProperties` structure is defined as:

    // Provided by VK_VERSION_1_2
    typedef struct VkPhysicalDeviceSamplerFilterMinmaxProperties {
        VkStructureType    sType;
        void*              pNext;
        VkBool32           filterMinmaxSingleComponentFormats;
        VkBool32           filterMinmaxImageComponentMapping;
    } VkPhysicalDeviceSamplerFilterMinmaxProperties;

or the equivalent

    // Provided by VK_EXT_sampler_filter_minmax
    typedef VkPhysicalDeviceSamplerFilterMinmaxProperties VkPhysicalDeviceSamplerFilterMinmaxPropertiesEXT;

## Members

- `sType` is the type of this structure.

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

## Description

- `filterMinmaxSingleComponentFormats` is a boolean value indicating whether a minimum set of required formats support min/max filtering.

- `filterMinmaxImageComponentMapping` is a boolean value indicating whether the implementation supports non-identity component mapping of the image when doing min/max filtering.

If the `VkPhysicalDeviceSamplerFilterMinmaxProperties` structure is included in the `pNext` chain of the VkPhysicalDeviceProperties2 structure passed to vkGetPhysicalDeviceProperties2, it is filled in with the corresponding implementation-dependent properties.

If `filterMinmaxSingleComponentFormats` is `VK_TRUE`, the following formats must support the `VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_MINMAX_BIT` feature with `VK_IMAGE_TILING_OPTIMAL`, if they support `VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT`.

- `VK_FORMAT_R8_UNORM`

- `VK_FORMAT_R8_SNORM`

- `VK_FORMAT_R16_UNORM`

- `VK_FORMAT_R16_SNORM`

- `VK_FORMAT_R16_SFLOAT`

- `VK_FORMAT_R32_SFLOAT`

- `VK_FORMAT_D16_UNORM`

- `VK_FORMAT_X8_D24_UNORM_PACK32`

- `VK_FORMAT_D32_SFLOAT`

- `VK_FORMAT_D16_UNORM_S8_UINT`

- `VK_FORMAT_D24_UNORM_S8_UINT`

- `VK_FORMAT_D32_SFLOAT_S8_UINT`

If the format is a depth/stencil format, this bit only specifies that the depth aspect (not the stencil aspect) of an image of this format supports min/max filtering, and that min/max filtering of the depth aspect is supported when depth compare is disabled in the sampler.

If `filterMinmaxImageComponentMapping` is `VK_FALSE` the component mapping of the image view used with min/max filtering must have been created with the `r` component set to the identity swizzle. Only the `r` component of the sampled image value is defined and the other component values are undefined. If `filterMinmaxImageComponentMapping` is `VK_TRUE` this restriction does not apply and image component mapping works as normal.

Valid Usage (Implicit)

- VUID-VkPhysicalDeviceSamplerFilterMinmaxProperties-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_FILTER_MINMAX_PROPERTIES`

## See Also

`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 2014-2021 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0