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GHC 9.14.1 · lts/ghc-9.14.x · 3e2d568 · 2026-10-11

Modulevulkan-3.27GHC2021

Vulkan.Extensions.VK_EXT_image_view_min_lod

Name

VK_EXT_image_view_min_lod - device extension

VK_EXT_image_view_min_lod

Name String

VK_EXT_image_view_min_lod

Extension Type

Device extension

Registered Extension Number

392

Revision

1

Ratification Status

Ratified

Extension and Version Dependencies

VK_KHR_get_physical_device_properties2

or

Vulkan Version 1.1

Contact

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

  • Faith Ekstrand, Intel

  • Tom Olson, ARM

Description

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

This extension may be useful to restrict a ImageView 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

New Enum Constants

Version History

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

    • Initial version

See Also

No cross-references are available

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.

  • 4 types
  • Packagevulkan-3.27
  • Exports6
  • LanguageGHC2021
  • LicenceBSD-3-Clause
  • SourceVK_EXT_image_view_min_lod.hs
datadata PhysicalDeviceImageViewMinLodFeaturesEXT
#

VkPhysicalDeviceImageViewMinLodFeaturesEXT - Structure describing whether clamping the min LOD of an image view is supported by the implementation

Members

This structure describes the following feature:

Description

If the PhysicalDeviceImageViewMinLodFeaturesEXT structure is included in the pNext chain of the PhysicalDeviceFeatures2 structure passed to getPhysicalDeviceFeatures2, it is filled in to indicate whether each corresponding feature is supported. If the application wishes to use a Device with any features described by PhysicalDeviceImageViewMinLodFeaturesEXT, it must add an instance of the structure, with the desired feature members set to TRUE, to the pNext chain of DeviceCreateInfo when creating the Device.

Structure Chaining

Extends the structures

See Also

VK_EXT_image_view_min_lod, Bool32, StructureType

Constructors

Instances6Eq, Show, Storable, FromCStruct, ToCStruct, Zero
datadata ImageViewMinLodCreateInfoEXT
#

VkImageViewMinLodCreateInfoEXT - Structure describing the minimum LOD of an image view

Description

If the pNext chain includes a ImageViewMinLodCreateInfoEXT structure, then that structure includes a parameter specifying a value to clamp the minimum LOD value during Image Level(s) Selection, Texel Gathering and Integer Texel Coordinate Operations.

If the image view contains ImageViewMinLodCreateInfoEXT and it is used as part of a sampling operation:

minLodFloatimageView = minLod

otherwise:

minLodFloatimageView = 0.0

An integer variant of this parameter is also defined for sampling operations which access integer mipmap levels:

minLodIntegerimageView = ⌊minLodFloatimageView⌋

Valid Usage

  • If the minLod feature is not enabled, minLod must be 0.0

  • minLod must be less or equal to the index of the last mipmap level accessible to the view

Valid Usage (Implicit)

Structure Chaining

Extends the structure

See Also

VK_EXT_image_view_min_lod, StructureType

Constructors

Instances6Eq, Show, Storable, FromCStruct, ToCStruct, Zero