C Specification

The VkImageViewMinLodCreateInfoEXT structure is defined as:

// Provided by VK_EXT_image_view_min_lod
typedef struct VkImageViewMinLodCreateInfoEXT {
    VkStructureType    sType;
    const void*        pNext;
    float              minLod;
} VkImageViewMinLodCreateInfoEXT;

Members

  • sType is a VkStructureType value identifying this structure.

  • pNext is NULL or a pointer to a structure extending this structure.

  • minLod is the value to clamp the minimum LOD accessible by this VkImageView.

Description

If the pNext chain includes a VkImageViewMinLodCreateInfoEXT 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 VkImageViewMinLodCreateInfoEXT 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

  • VUID-VkImageViewMinLodCreateInfoEXT-minLod-06455
    If the minLod feature is not enabled, minLod must be 0.0

  • VUID-VkImageViewMinLodCreateInfoEXT-minLod-06456
    minLod must be less or equal to the index of the last mipmap level accessible to the view

Valid Usage (Implicit)

  • VUID-VkImageViewMinLodCreateInfoEXT-sType-sType
    sType must be VK_STRUCTURE_TYPE_IMAGE_VIEW_MIN_LOD_CREATE_INFO_EXT

See Also

VK_EXT_image_view_min_lod, 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 2014-2023 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0