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GHC 10.0.0.20260917 · lts/ghc-10.0.x · fc4e598 · 2026-10-11

Modulevulkan-3.27GHC2021

Vulkan.Extensions.VK_EXT_legacy_vertex_attributes

Name

VK_EXT_legacy_vertex_attributes - device extension

VK_EXT_legacy_vertex_attributes

Name String

VK_EXT_legacy_vertex_attributes

Extension Type

Device extension

Registered Extension Number

496

Revision

1

Ratification Status

Ratified

Extension and Version Dependencies

VK_EXT_vertex_input_dynamic_state

Special Use
Contact
Extension Proposal

VK_EXT_legacy_vertex_attributes

Other Extension Metadata

Last Modified Date

2024-02-23

IP Status

No known IP claims.

Contributors

  • Mike Blumenkrantz, Valve

  • Piers Daniell, NVIDIA

  • Spencer Fricke, LunarG

  • Alyssa Rosenzweig, Valve

Description

This extension adds support for legacy features of (non-64-bit) vertex attributes as found in OpenGL:

  • Vertex attributes loaded from arbitrary buffer alignments

  • Vertex attributes using arbitrary strides

  • Vertex attributes where the component data type of the binding does not match the component numeric type of the shader input

These features are only usable with dynamic vertex input. Unaligned loads of vertex attributes may incur performance penalties, indicated with a property.

New Structures

New Enum Constants

Issues

  1. ) Should implementations convert float/integer values?

RESOLVED: No. When fetching an integer data type from float values or float data types from integer values, the resulting shader values are implementation-dependent.

Version History

  • Revision 1, 2024-02-16 (Mike Blumenkrantz)

    • Initial revision

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_legacy_vertex_attributes.hs
datadata PhysicalDeviceLegacyVertexAttributesFeaturesEXT
#

VkPhysicalDeviceLegacyVertexAttributesFeaturesEXT - Structure describing compatibility features for vertex attributes

Members

This structure describes the following features:

Description

If the PhysicalDeviceLegacyVertexAttributesFeaturesEXT 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 PhysicalDeviceLegacyVertexAttributesFeaturesEXT, 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_legacy_vertex_attributes, Bool32, StructureType

Constructors

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

VkPhysicalDeviceLegacyVertexAttributesPropertiesEXT - Structure describing properties for legacy vertex attributes

Members

This structure describes the following features:

Description

If the PhysicalDeviceLegacyVertexAttributesPropertiesEXT 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 PhysicalDeviceLegacyVertexAttributesPropertiesEXT, 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 structure

See Also

VK_EXT_legacy_vertex_attributes, Bool32, StructureType

Constructors

Instances6Eq, Show, Storable, FromCStruct, ToCStruct, Zero