# VkSamplerCustomBorderColorCreateInfoEXT(3) Manual Page

## Name

VkSamplerCustomBorderColorCreateInfoEXT - Structure specifying custom border color

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## C Specification

In addition to the predefined border color values, applications can provide a custom border color value by including the `VkSamplerCustomBorderColorCreateInfoEXT` structure in the VkSamplerCreateInfo::`pNext` chain.

The `VkSamplerCustomBorderColorCreateInfoEXT` structure is defined as:

    // Provided by VK_EXT_custom_border_color
    typedef struct VkSamplerCustomBorderColorCreateInfoEXT {
        VkStructureType      sType;
        const void*          pNext;
        VkClearColorValue    customBorderColor;
        VkFormat             format;
    } VkSamplerCustomBorderColorCreateInfoEXT;

## Members

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

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

- `customBorderColor` is a VkClearColorValue representing the desired custom sampler border color.

- `format` is a VkFormat representing the format of the sampled image view(s). This field may be `VK_FORMAT_UNDEFINED` if the `customBorderColorWithoutFormat` feature is enabled.

## Description

Note | If `format` is a depth/stencil format, the aspect is determined by the value of VkSamplerCreateInfo::`borderColor`. If VkSamplerCreateInfo::`borderColor` is `VK_BORDER_COLOR_FLOAT_CUSTOM_EXT`, the depth aspect is considered. If VkSamplerCreateInfo::`borderColor` is `VK_BORDER_COLOR_INT_CUSTOM_EXT`, the stencil aspect is considered. If `format` is `VK_FORMAT_UNDEFINED`, the VkSamplerCreateInfo::`borderColor` is `VK_BORDER_COLOR_INT_CUSTOM_EXT`, and the sampler is used with an image with a stencil format, then the implementation must source the custom border color from either the first or second components of VkSamplerCreateInfo::`borderColor` and should source it from the first component.

Valid Usage

- VUID-VkSamplerCustomBorderColorCreateInfoEXT-format-07605
  If `format` is not `VK_FORMAT_UNDEFINED` and `format` is not a depth/stencil format then the VkSamplerCreateInfo::`borderColor` type must match the sampled type of the provided `format`, as shown in the SPIR-V Type column of the https://registry.khronos.org/vulkan/specs/latest/html/vkspec.html#formats-numericformat table

- VUID-VkSamplerCustomBorderColorCreateInfoEXT-format-04014
  If the `customBorderColorWithoutFormat` feature is not enabled then `format` must not be `VK_FORMAT_UNDEFINED`

- VUID-VkSamplerCustomBorderColorCreateInfoEXT-format-04015
  If the sampler is used to sample an image view of `VK_FORMAT_B4G4R4A4_UNORM_PACK16`, `VK_FORMAT_B5G6R5_UNORM_PACK16`, `VK_FORMAT_A1B5G5R5_UNORM_PACK16`, or `VK_FORMAT_B5G5R5A1_UNORM_PACK16` format then `format` must not be `VK_FORMAT_UNDEFINED`

Valid Usage (Implicit)

- VUID-VkSamplerCustomBorderColorCreateInfoEXT-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_SAMPLER_CUSTOM_BORDER_COLOR_CREATE_INFO_EXT`

- VUID-VkSamplerCustomBorderColorCreateInfoEXT-format-parameter
  `format` must be a valid VkFormat value

## See Also

VK_EXT_custom_border_color, VkClearColorValue, VkFormat, 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 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0