Describes the status of facial expression weights.

Description

If the returned isValid is FALSE, then it indicates that the face tracker failed to track or lost track of the face, or the application lost focus, or the consent for face tracking was denied.

If the returned isValid is TRUE, the runtime must return all weights (or all weights except eyes related weights, see isEyeFollowingBlendshapesValid).

If the returned isEyeFollowingBlendshapesValid is FALSE, then it indicates that the eye tracking driving blendshapes with prefix XR_FACE_EXPRESSION_EYES_LOOK_* lost track or the consent for eye tracking was denied.

Valid Usage (Implicit)

The XR_FB_face_tracking extension must be enabled prior to using XrFaceExpressionStatusFB

Layout


struct XrFaceExpressionStatusFB {
    XrBool32 isValid;
    XrBool32 isEyeFollowingBlendshapesValid;
}

Nested and Inner Type Summary

Modifier and Type	Class and Description
public static class	XrFaceExpressionStatusFB.Buffer An array of `XrFaceExpressionStatusFB` structs.

Field Summary

Modifier and Type	Field and Description
public static final int	ALIGNOF The struct alignment in bytes.
public static final int	ISEYEFOLLOWINGBLENDSHAPESVALID The struct member offsets.
public static final int	ISVALID The struct member offsets.
public static final int	SIZEOF The struct size in bytes.

Inherited from org.lwjgl.system.Struct:: container DEFAULT_ALIGN_AS DEFAULT_PACK_ALIGNMENT

Constructor Summary

Access	Constructor and Description
protected	XrFaceExpressionStatusFB(long address, ByteBuffer container)
public	XrFaceExpressionStatusFB(ByteBuffer container) Creates a `XrFaceExpressionStatusFB` instance at the current position of the specified `ByteBuffer` container.

Method Summary

Modifier and Type	Method and Description
public static XrFaceExpressionStatusFB	calloc() Returns a new `XrFaceExpressionStatusFB` instance allocated with `memCalloc`.
public static XrFaceExpressionStatusFB.Buffer	calloc(int the buffer capacity capacity) Returns a new `XrFaceExpressionStatusFB.Buffer` instance allocated with `memCalloc`.
public static XrFaceExpressionStatusFB	calloc(MemoryStack the stack from which to allocate stack) Returns a new `XrFaceExpressionStatusFB` instance allocated on the specified `MemoryStack` and initializes all its bits to zero.
public static XrFaceExpressionStatusFB.Buffer	calloc(int the buffer capacity capacity, MemoryStack the stack from which to allocate stack) Returns a new `XrFaceExpressionStatusFB.Buffer` instance allocated on the specified `MemoryStack` and initializes all its bits to zero.
protected XrFaceExpressionStatusFB	create(long the struct memory address address, ByteBuffer an optional container buffer, to be referenced strongly by the struct instance. container) Implements abstract org.lwjgl.system.Struct.create. Similar to `the constructor`, but returns the exact type of the `Struct` subclass.
public static XrFaceExpressionStatusFB	create() Returns a new `XrFaceExpressionStatusFB` instance allocated with `BufferUtils`.
public static XrFaceExpressionStatusFB	create(long address) Returns a new `XrFaceExpressionStatusFB` instance for the specified memory address.
public static XrFaceExpressionStatusFB.Buffer	create(int the buffer capacity capacity) Returns a new `XrFaceExpressionStatusFB.Buffer` instance allocated with `BufferUtils`.
public static XrFaceExpressionStatusFB.Buffer	create(long the memory address address, int the buffer capacity capacity) Create a `XrFaceExpressionStatusFB.Buffer` instance at the specified memory.
public static XrFaceExpressionStatusFB	createSafe(long address) Like `create`, but returns `null` if `address` is `NULL`.
public static XrFaceExpressionStatusFB.Buffer	createSafe(long address, int capacity) Like `create`, but returns `null` if `address` is `NULL`.
public boolean	isEyeFollowingBlendshapesValid() an `XrBool32` which indicates if the 8 expression weights with prefix `XR_FACE_EXPRESSION_EYES_LOOK_*` are valid.
public XrFaceExpressionStatusFB	isEyeFollowingBlendshapesValid(boolean value) Sets the specified value to the `isEyeFollowingBlendshapesValid` field.
public boolean	isValid() an `XrBool32` which indicates that the tracked expression weights are valid.
public XrFaceExpressionStatusFB	isValid(boolean value) Sets the specified value to the `isValid` field.
public static XrFaceExpressionStatusFB	malloc() Returns a new `XrFaceExpressionStatusFB` instance allocated with `memAlloc`.
public static XrFaceExpressionStatusFB.Buffer	malloc(int the buffer capacity capacity) Returns a new `XrFaceExpressionStatusFB.Buffer` instance allocated with `memAlloc`.
public static XrFaceExpressionStatusFB	malloc(MemoryStack the stack from which to allocate stack) Returns a new `XrFaceExpressionStatusFB` instance allocated on the specified `MemoryStack`.
public static XrFaceExpressionStatusFB.Buffer	malloc(int the buffer capacity capacity, MemoryStack the stack from which to allocate stack) Returns a new `XrFaceExpressionStatusFB.Buffer` instance allocated on the specified `MemoryStack`.
public static int	nisEyeFollowingBlendshapesValid(long struct) Unsafe version of `isEyeFollowingBlendshapesValid`.
public static void	nisEyeFollowingBlendshapesValid(long struct, int value) Unsafe version of `isEyeFollowingBlendshapesValid`.
public static int	nisValid(long struct) Unsafe version of `isValid`.
public static void	nisValid(long struct, int value) Unsafe version of `isValid`.
public XrFaceExpressionStatusFB	set(boolean isValid, boolean isEyeFollowingBlendshapesValid) Initializes this struct with the specified values.
public XrFaceExpressionStatusFB	Returns: this struct set(XrFaceExpressionStatusFB the source struct src) Copies the specified struct data to this struct.
public int	sizeof() Implements abstract org.lwjgl.system.Struct.sizeof. Returns `sizeof(struct)`.

Field Detail

ALIGNOF	back to summary
public static final int ALIGNOF The struct alignment in bytes.

ISEYEFOLLOWINGBLENDSHAPESVALID	back to summary
public static final int ISEYEFOLLOWINGBLENDSHAPESVALID The struct member offsets.

ISVALID	back to summary
public static final int ISVALID The struct member offsets.

SIZEOF	back to summary
public static final int SIZEOF The struct size in bytes.

Constructor Detail

XrFaceExpressionStatusFB	back to summary
protected XrFaceExpressionStatusFB(long address, ByteBuffer container)

XrFaceExpressionStatusFB back to summary

XrFaceExpressionStatusFB	back to summary
public XrFaceExpressionStatusFB(ByteBuffer container) Creates a `XrFaceExpressionStatusFB` instance at the current position of the specified `ByteBuffer` container. Changes to the buffer's content will be visible to the struct instance and vice versa. The created instance holds a strong reference to the container object.

public XrFaceExpressionStatusFB(ByteBuffer container)

Creates a XrFaceExpressionStatusFB instance at the current position of the specified ByteBuffer container. Changes to the buffer's content will be visible to the struct instance and vice versa.

The created instance holds a strong reference to the container object.

Method Detail

calloc	back to summary
public static XrFaceExpressionStatusFB calloc() Returns a new `XrFaceExpressionStatusFB` instance allocated with `memCalloc`. The instance must be explicitly freed.

calloc back to summary

calloc	back to summary
public static XrFaceExpressionStatusFB.Buffer calloc(int capacity) Returns a new `XrFaceExpressionStatusFB.Buffer` instance allocated with `memCalloc`. The instance must be explicitly freed. Parameters capacity:int the buffer capacity

public static XrFaceExpressionStatusFB.Buffer calloc(int capacity)

Returns a new XrFaceExpressionStatusFB.Buffer instance allocated with memCalloc. The instance must be explicitly freed.

Parameters

capacity:int: the buffer capacity

calloc back to summary

calloc	back to summary
public static XrFaceExpressionStatusFB calloc(MemoryStack stack) Returns a new `XrFaceExpressionStatusFB` instance allocated on the specified `MemoryStack` and initializes all its bits to zero. Parameters stack:MemoryStack the stack from which to allocate

public static XrFaceExpressionStatusFB calloc(MemoryStack stack)

Returns a new XrFaceExpressionStatusFB instance allocated on the specified MemoryStack and initializes all its bits to zero.

Parameters

stack:MemoryStack: the stack from which to allocate

calloc back to summary

calloc	back to summary
public static XrFaceExpressionStatusFB.Buffer calloc(int capacity, MemoryStack stack) Returns a new `XrFaceExpressionStatusFB.Buffer` instance allocated on the specified `MemoryStack` and initializes all its bits to zero. Parameters capacity:int the buffer capacity stack:MemoryStack the stack from which to allocate

public static XrFaceExpressionStatusFB.Buffer calloc(int capacity, MemoryStack stack)

Returns a new XrFaceExpressionStatusFB.Buffer instance allocated on the specified MemoryStack and initializes all its bits to zero.

Parameters

capacity:int: the buffer capacity
stack:MemoryStack: the stack from which to allocate

create back to summary

create	back to summary
protected XrFaceExpressionStatusFB create(long address, ByteBuffer container) Implements abstract org.lwjgl.system.Struct.create. Doc from org.lwjgl.system.Struct.create. Similar to `the constructor`, but returns the exact type of the `Struct` subclass. Effectively, every `Struct` instance is a factory for more instances of the same type. This is used by `StructBuffer`. Parameters address:long the struct memory address container:ByteBuffer an optional container buffer, to be referenced strongly by the struct instance. Annotations @Override

protected XrFaceExpressionStatusFB create(long address, ByteBuffer container)

Implements abstract org.lwjgl.system.Struct.create.

Doc from org.lwjgl.system.Struct.create.

Similar to the constructor, but returns the exact type of the Struct subclass.

Effectively, every Struct instance is a factory for more instances of the same type. This is used by StructBuffer.

Parameters

address:long: the struct memory address
container:ByteBuffer: an optional container buffer, to be referenced strongly by the struct instance.

Annotations

@Override

create	back to summary
public static XrFaceExpressionStatusFB create() Returns a new `XrFaceExpressionStatusFB` instance allocated with `BufferUtils`.

create	back to summary
public static XrFaceExpressionStatusFB create(long address) Returns a new `XrFaceExpressionStatusFB` instance for the specified memory address.

create back to summary

create	back to summary
public static XrFaceExpressionStatusFB.Buffer create(int capacity) Returns a new `XrFaceExpressionStatusFB.Buffer` instance allocated with `BufferUtils`. Parameters capacity:int the buffer capacity

public static XrFaceExpressionStatusFB.Buffer create(int capacity)

Returns a new XrFaceExpressionStatusFB.Buffer instance allocated with BufferUtils.

Parameters

capacity:int: the buffer capacity

create back to summary

create	back to summary
public static XrFaceExpressionStatusFB.Buffer create(long address, int capacity) Create a `XrFaceExpressionStatusFB.Buffer` instance at the specified memory. Parameters address:long the memory address capacity:int the buffer capacity

public static XrFaceExpressionStatusFB.Buffer create(long address, int capacity)

Create a XrFaceExpressionStatusFB.Buffer instance at the specified memory.

Parameters

address:long: the memory address
capacity:int: the buffer capacity

createSafe back to summary

createSafe	back to summary
public static XrFaceExpressionStatusFB createSafe(long address) Like `create`, but returns `null` if `address` is `NULL`. Annotations @Nullable

public static XrFaceExpressionStatusFB createSafe(long address)

Like create, but returns null if address is NULL.

Annotations

@Nullable

createSafe back to summary

createSafe	back to summary
public static XrFaceExpressionStatusFB.Buffer createSafe(long address, int capacity) Like `create`, but returns `null` if `address` is `NULL`. Annotations @Nullable

public static XrFaceExpressionStatusFB.Buffer createSafe(long address, int capacity)

Like create, but returns null if address is NULL.

Annotations

@Nullable

isEyeFollowingBlendshapesValid back to summary

isEyeFollowingBlendshapesValid	back to summary
public boolean isEyeFollowingBlendshapesValid() an `XrBool32` which indicates if the 8 expression weights with prefix `XR_FACE_EXPRESSION_EYES_LOOK_*` are valid. Annotations @NativeType:XrBool32

public boolean isEyeFollowingBlendshapesValid()

an XrBool32 which indicates if the 8 expression weights with prefix XR_FACE_EXPRESSION_EYES_LOOK_* are valid.

Annotations

@NativeType:XrBool32

isEyeFollowingBlendshapesValid	back to summary
public XrFaceExpressionStatusFB isEyeFollowingBlendshapesValid(boolean value) Sets the specified value to the `isEyeFollowingBlendshapesValid` field.

isValid back to summary

isValid	back to summary
public boolean isValid() an `XrBool32` which indicates that the tracked expression weights are valid. Annotations @NativeType:XrBool32

public boolean isValid()

an XrBool32 which indicates that the tracked expression weights are valid.

Annotations

@NativeType:XrBool32

isValid	back to summary
public XrFaceExpressionStatusFB isValid(boolean value) Sets the specified value to the `isValid` field.

malloc	back to summary
public static XrFaceExpressionStatusFB malloc() Returns a new `XrFaceExpressionStatusFB` instance allocated with `memAlloc`. The instance must be explicitly freed.

malloc back to summary

malloc	back to summary
public static XrFaceExpressionStatusFB.Buffer malloc(int capacity) Returns a new `XrFaceExpressionStatusFB.Buffer` instance allocated with `memAlloc`. The instance must be explicitly freed. Parameters capacity:int the buffer capacity

public static XrFaceExpressionStatusFB.Buffer malloc(int capacity)

Returns a new XrFaceExpressionStatusFB.Buffer instance allocated with memAlloc. The instance must be explicitly freed.

Parameters

capacity:int: the buffer capacity

malloc back to summary

malloc	back to summary
public static XrFaceExpressionStatusFB malloc(MemoryStack stack) Returns a new `XrFaceExpressionStatusFB` instance allocated on the specified `MemoryStack`. Parameters stack:MemoryStack the stack from which to allocate

public static XrFaceExpressionStatusFB malloc(MemoryStack stack)

Returns a new XrFaceExpressionStatusFB instance allocated on the specified MemoryStack.

Parameters

stack:MemoryStack: the stack from which to allocate

malloc back to summary

malloc	back to summary
public static XrFaceExpressionStatusFB.Buffer malloc(int capacity, MemoryStack stack) Returns a new `XrFaceExpressionStatusFB.Buffer` instance allocated on the specified `MemoryStack`. Parameters capacity:int the buffer capacity stack:MemoryStack the stack from which to allocate

public static XrFaceExpressionStatusFB.Buffer malloc(int capacity, MemoryStack stack)

Returns a new XrFaceExpressionStatusFB.Buffer instance allocated on the specified MemoryStack.

Parameters

capacity:int: the buffer capacity
stack:MemoryStack: the stack from which to allocate

nisEyeFollowingBlendshapesValid	back to summary
public static int nisEyeFollowingBlendshapesValid(long struct) Unsafe version of `isEyeFollowingBlendshapesValid`.

nisEyeFollowingBlendshapesValid	back to summary
public static void nisEyeFollowingBlendshapesValid(long struct, int value) Unsafe version of `isEyeFollowingBlendshapesValid`.

nisValid	back to summary
public static int nisValid(long struct) Unsafe version of `isValid`.

nisValid	back to summary
public static void nisValid(long struct, int value) Unsafe version of `isValid`.

set	back to summary
public XrFaceExpressionStatusFB set(boolean isValid, boolean isEyeFollowingBlendshapesValid) Initializes this struct with the specified values.

set	back to summary
public XrFaceExpressionStatusFB set(XrFaceExpressionStatusFB src) Copies the specified struct data to this struct. Parameters src:XrFaceExpressionStatusFB the source struct Returns:XrFaceExpressionStatusFB this struct

set

back to summary

public XrFaceExpressionStatusFB set(XrFaceExpressionStatusFB src)

Copies the specified struct data to this struct.

Parameters

src:XrFaceExpressionStatusFB: the source struct

Returns:XrFaceExpressionStatusFB

this struct

sizeof back to summary

sizeof	back to summary
public int sizeof() Implements abstract org.lwjgl.system.Struct.sizeof. Doc from org.lwjgl.system.Struct.sizeof. Returns `sizeof(struct)`. Annotations @Override

public int sizeof()

Implements abstract org.lwjgl.system.Struct.sizeof.

Doc from org.lwjgl.system.Struct.sizeof.

Returns sizeof(struct).

Annotations

@Override

org.lwjgl.openxr back to summary

public Class XrFaceExpressionStatusFB.Buffer

Class Inheritance

extends StructBuffer<XrFaceExpressionStatusFB, XrFaceExpressionStatusFB.Buffer>
implements NativeResource

java.lang.Object
org.lwjgl.system.Pointer.Default
org.lwjgl.system.CustomBuffer
org.lwjgl.system.StructBuffer
org.lwjgl.openxr.XrFaceExpressionStatusFB.Buffer

All Implemented Interfaces

org.lwjgl.system.NativeResource, java.lang.AutoCloseable

An array of XrFaceExpressionStatusFB structs.

Field Summary

Modifier and Type	Field and Description
private static final XrFaceExpressionStatusFB	ELEMENT_FACTORY

Constructor Summary

Access	Constructor and Description
public	Buffer(ByteBuffer container) Creates a new `XrFaceExpressionStatusFB.Buffer` instance backed by the specified container.
public	Buffer(long address, int cap)
pack-priv	Buffer(long address, ByteBuffer container, int mark, int pos, int lim, int cap)

Method Summary

Modifier and Type	Method and Description
protected XrFaceExpressionStatusFB	getElementFactory() Implements abstract org.lwjgl.system.StructBuffer.getElementFactory.
public boolean	Returns: the value of the `XrFaceExpressionStatusFB#isEyeFollowingBlendshapesValid` field. isEyeFollowingBlendshapesValid()
public XrFaceExpressionStatusFB.Buffer	isEyeFollowingBlendshapesValid(boolean value) Sets the specified value to the `XrFaceExpressionStatusFB#isEyeFollowingBlendshapesValid` field.
public boolean	Returns: the value of the `XrFaceExpressionStatusFB#isValid` field. isValid()
public XrFaceExpressionStatusFB.Buffer	isValid(boolean value) Sets the specified value to the `XrFaceExpressionStatusFB#isValid` field.
protected XrFaceExpressionStatusFB.Buffer	self() Implements abstract org.lwjgl.system.CustomBuffer.self.

Inherited from org.lwjgl.system.StructBuffer:: apply apply forEach get get get get iterator parallelStream put put sizeof spliterator stream

Field Detail

ELEMENT_FACTORY	back to summary
private static final XrFaceExpressionStatusFB ELEMENT_FACTORY

Constructor Detail

Buffer back to summary

Buffer	back to summary
public Buffer(ByteBuffer container) Creates a new `XrFaceExpressionStatusFB.Buffer` instance backed by the specified container. Changes to the container's content will be visible to the struct buffer instance and vice versa. The two buffers' position, limit, and mark values will be independent. The new buffer's position will be zero, its capacity and its limit will be the number of bytes remaining in this buffer divided by `XrFaceExpressionStatusFB#SIZEOF`, and its mark will be undefined. The created buffer instance holds a strong reference to the container object.

public Buffer(ByteBuffer container)

Creates a new XrFaceExpressionStatusFB.Buffer instance backed by the specified container.

Changes to the container's content will be visible to the struct buffer instance and vice versa. The two buffers' position, limit, and mark values will be independent. The new buffer's position will be zero, its capacity and its limit will be the number of bytes remaining in this buffer divided by XrFaceExpressionStatusFB#SIZEOF, and its mark will be undefined.

The created buffer instance holds a strong reference to the container object.

Buffer	back to summary
public Buffer(long address, int cap)

Buffer	back to summary
pack-priv Buffer(long address, ByteBuffer container, int mark, int pos, int lim, int cap)

Method Detail

getElementFactory	back to summary
protected XrFaceExpressionStatusFB getElementFactory() Implements abstract org.lwjgl.system.StructBuffer.getElementFactory. Annotations @Override

getElementFactory

back to summary

protected XrFaceExpressionStatusFB getElementFactory()

Implements abstract org.lwjgl.system.StructBuffer.getElementFactory.

Annotations

@Override

isEyeFollowingBlendshapesValid	back to summary
public boolean isEyeFollowingBlendshapesValid() Returns:boolean the value of the `XrFaceExpressionStatusFB#isEyeFollowingBlendshapesValid` field. Annotations @NativeType:XrBool32

isEyeFollowingBlendshapesValid	back to summary
public XrFaceExpressionStatusFB.Buffer isEyeFollowingBlendshapesValid(boolean value) Sets the specified value to the `XrFaceExpressionStatusFB#isEyeFollowingBlendshapesValid` field.

isValid	back to summary
public boolean isValid() Returns:boolean the value of the `XrFaceExpressionStatusFB#isValid` field. Annotations @NativeType:XrBool32

isValid	back to summary
public XrFaceExpressionStatusFB.Buffer isValid(boolean value) Sets the specified value to the `XrFaceExpressionStatusFB#isValid` field.

self	back to summary
protected XrFaceExpressionStatusFB.Buffer self() Implements abstract org.lwjgl.system.CustomBuffer.self. Annotations @Override

self

back to summary

protected XrFaceExpressionStatusFB.Buffer self()

Implements abstract org.lwjgl.system.CustomBuffer.self.

Annotations

@Override

public Class XrFaceExpressionStatusFB

Description

Valid Usage (Implicit)

See Also

Layout

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

public Class XrFaceExpressionStatusFB.Buffer

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail