VK_EXT_image_view_min_lod(3)

# VK_EXT_image_view_min_lod(3) Manual Page

## Name

VK_EXT_image_view_min_lod - device extension

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## Registered Extension Number

392

## Revision

1

## Extension and Version Dependencies

- Requires Vulkan 1.0

- Requires `VK_KHR_get_physical_device_properties2`

## Contact

- Joshua Ashton Joshua-Ashton

## Other Extension Metadata

Last Modified Date

  2021-11-09

IP Status

  No known IP claims.

Contributors

  - Joshua Ashton, Valve

  - Hans-Kristian Arntzen, Valve

  - Samuel Iglesias Gonsalvez, Igalia

  - Tobias Hector, AMD

  - Jason Ekstrand, Intel

  - Tom Olson, ARM

## Description

This extension allows applications to clamp the minimum LOD value during Image Level(s) Selection and Integer Texel Coordinate Operations with a given VkImageView by VkImageViewMinLodCreateInfoEXT::`minLod`.

This extension may be useful to restrict a VkImageView to only mips which have been uploaded, and the use of fractional `minLod` can be useful for smoothly introducing new mip levels when using linear mipmap filtering.

## New Structures

- Extending VkImageViewCreateInfo:

  - VkImageViewMinLodCreateInfoEXT

- Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:

  - VkPhysicalDeviceImageViewMinLodFeaturesEXT

## New Enum Constants

- `VK_EXT_IMAGE_VIEW_MIN_LOD_EXTENSION_NAME`

- `VK_EXT_IMAGE_VIEW_MIN_LOD_SPEC_VERSION`

- Extending VkStructureType:

  - `VK_STRUCTURE_TYPE_IMAGE_VIEW_MIN_LOD_CREATE_INFO_EXT`

  - `VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_VIEW_MIN_LOD_FEATURES_EXT`

## Version History

- Revision 1, 2021-07-06 (Joshua Ashton)

  - Initial version

## See Also

VkImageViewMinLodCreateInfoEXT, VkPhysicalDeviceImageViewMinLodFeaturesEXT

## Document Notes

For more information, see the Vulkan Specification

This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.

## Copyright

Copyright 2014-2022 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0