Safe Haskell	None
Language	Haskell2010

Vulkan.Extensions.VK_EXT_legacy_vertex_attributes

Description

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

OpenGL / ES support

Contact

Mike Blumenkrantz @zmike%0A*Here describe the issue or question you have about the VK_EXT_legacy_vertex_attributes extension*

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

Extending PhysicalDeviceFeatures2, DeviceCreateInfo:
- PhysicalDeviceLegacyVertexAttributesFeaturesEXT

Extending PhysicalDeviceProperties2:
- PhysicalDeviceLegacyVertexAttributesPropertiesEXT

New Enum Constants

EXT_LEGACY_VERTEX_ATTRIBUTES_EXTENSION_NAME

Issues

) 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

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.

Synopsis

data PhysicalDeviceLegacyVertexAttributesFeaturesEXT = PhysicalDeviceLegacyVertexAttributesFeaturesEXT {
- legacyVertexAttributes :: Bool
}
data PhysicalDeviceLegacyVertexAttributesPropertiesEXT = PhysicalDeviceLegacyVertexAttributesPropertiesEXT {
- nativeUnalignedPerformance :: Bool
}
type EXT_LEGACY_VERTEX_ATTRIBUTES_SPEC_VERSION = 1
pattern EXT_LEGACY_VERTEX_ATTRIBUTES_SPEC_VERSION :: Integral a => a
type EXT_LEGACY_VERTEX_ATTRIBUTES_EXTENSION_NAME = "VK_EXT_legacy_vertex_attributes"
pattern EXT_LEGACY_VERTEX_ATTRIBUTES_EXTENSION_NAME :: (Eq a, IsString a) => a

Documentation

data PhysicalDeviceLegacyVertexAttributesFeaturesEXT Source #

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.

Valid Usage (Implicit)

Eq PhysicalDeviceLegacyVertexAttributesFeaturesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_legacy_vertex_attributes Methods (==) :: PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> Bool # (/=) :: PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> Bool #
Storable PhysicalDeviceLegacyVertexAttributesFeaturesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_legacy_vertex_attributes Methods sizeOf :: PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> Int # alignment :: PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> Int # peekElemOff :: Ptr PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> Int -> IO PhysicalDeviceLegacyVertexAttributesFeaturesEXT # pokeElemOff :: Ptr PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> Int -> PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> IO () # peekByteOff :: Ptr b -> Int -> IO PhysicalDeviceLegacyVertexAttributesFeaturesEXT # pokeByteOff :: Ptr b -> Int -> PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> IO () # peek :: Ptr PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> IO PhysicalDeviceLegacyVertexAttributesFeaturesEXT # poke :: Ptr PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> IO () #
Show PhysicalDeviceLegacyVertexAttributesFeaturesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_legacy_vertex_attributes Methods showsPrec :: Int -> PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> ShowS # show :: PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> String # showList :: [PhysicalDeviceLegacyVertexAttributesFeaturesEXT] -> ShowS #
FromCStruct PhysicalDeviceLegacyVertexAttributesFeaturesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_legacy_vertex_attributes Methods peekCStruct :: Ptr PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> IO PhysicalDeviceLegacyVertexAttributesFeaturesEXT Source #
ToCStruct PhysicalDeviceLegacyVertexAttributesFeaturesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_legacy_vertex_attributes Methods withCStruct :: PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> (Ptr PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> IO b) -> IO b Source # pokeCStruct :: Ptr PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> IO b -> IO b Source # withZeroCStruct :: (Ptr PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> IO b) -> IO b Source # pokeZeroCStruct :: Ptr PhysicalDeviceLegacyVertexAttributesFeaturesEXT -> IO b -> IO b Source # cStructSize :: Int Source # cStructAlignment :: Int Source #
Zero PhysicalDeviceLegacyVertexAttributesFeaturesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_legacy_vertex_attributes Methods zero :: PhysicalDeviceLegacyVertexAttributesFeaturesEXT Source #

data PhysicalDeviceLegacyVertexAttributesPropertiesEXT Source #

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.

Valid Usage (Implicit)

Eq PhysicalDeviceLegacyVertexAttributesPropertiesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_legacy_vertex_attributes Methods (==) :: PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> Bool # (/=) :: PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> Bool #
Storable PhysicalDeviceLegacyVertexAttributesPropertiesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_legacy_vertex_attributes Methods sizeOf :: PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> Int # alignment :: PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> Int # peekElemOff :: Ptr PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> Int -> IO PhysicalDeviceLegacyVertexAttributesPropertiesEXT # pokeElemOff :: Ptr PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> Int -> PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> IO () # peekByteOff :: Ptr b -> Int -> IO PhysicalDeviceLegacyVertexAttributesPropertiesEXT # pokeByteOff :: Ptr b -> Int -> PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> IO () # peek :: Ptr PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> IO PhysicalDeviceLegacyVertexAttributesPropertiesEXT # poke :: Ptr PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> IO () #
Show PhysicalDeviceLegacyVertexAttributesPropertiesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_legacy_vertex_attributes Methods showsPrec :: Int -> PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> ShowS # show :: PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> String # showList :: [PhysicalDeviceLegacyVertexAttributesPropertiesEXT] -> ShowS #
FromCStruct PhysicalDeviceLegacyVertexAttributesPropertiesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_legacy_vertex_attributes Methods peekCStruct :: Ptr PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> IO PhysicalDeviceLegacyVertexAttributesPropertiesEXT Source #
ToCStruct PhysicalDeviceLegacyVertexAttributesPropertiesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_legacy_vertex_attributes Methods withCStruct :: PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> (Ptr PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> IO b) -> IO b Source # pokeCStruct :: Ptr PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> IO b -> IO b Source # withZeroCStruct :: (Ptr PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> IO b) -> IO b Source # pokeZeroCStruct :: Ptr PhysicalDeviceLegacyVertexAttributesPropertiesEXT -> IO b -> IO b Source # cStructSize :: Int Source # cStructAlignment :: Int Source #
Zero PhysicalDeviceLegacyVertexAttributesPropertiesEXT Source #
Instance details Defined in Vulkan.Extensions.VK_EXT_legacy_vertex_attributes Methods zero :: PhysicalDeviceLegacyVertexAttributesPropertiesEXT Source #

type EXT_LEGACY_VERTEX_ATTRIBUTES_SPEC_VERSION = 1 Source #

pattern EXT_LEGACY_VERTEX_ATTRIBUTES_SPEC_VERSION :: Integral a => a Source #

type EXT_LEGACY_VERTEX_ATTRIBUTES_EXTENSION_NAME = "VK_EXT_legacy_vertex_attributes" Source #

pattern EXT_LEGACY_VERTEX_ATTRIBUTES_EXTENSION_NAME :: (Eq a, IsString a) => a Source #

Name

VK_EXT_legacy_vertex_attributes

Other Extension Metadata

Description

New Structures

New Enum Constants

Issues

Version History

See Also

Document Notes

Documentation

Members

Description

Valid Usage (Implicit)

See Also

Instances

Members

Description

Valid Usage (Implicit)

See Also

Instances

PhysicalDeviceLegacyVertexAttributesFeaturesEXT
Fields legacyVertexAttributes :: Bool `legacyVertexAttributes` specifies whether compatibility features for vertex attributes are supported when using dynamic vertex input state.

PhysicalDeviceLegacyVertexAttributesPropertiesEXT
Fields nativeUnalignedPerformance :: Bool `nativeUnalignedPerformance` specifies whether unaligned vertex fetches do not incur significant performance penalties as compared to aligned fetches.