Package org.lwjgl.openxr

Class FBHandTrackingMesh

java.lang.Object

org.lwjgl.openxr.FBHandTrackingMesh

public class FBHandTrackingMesh
extends Object

The XR_FB_hand_tracking_mesh extension.

The XR_EXT_hand_tracking extension provides a list of hand joint poses but no mechanism to render a skinned hand mesh.

This extension allows:

• An application to get a skinned hand mesh and a bind pose skeleton that can be used to render a hand object driven by the joints from the XR_EXT_hand_tracking extension.
• Control the scale of the hand joints returned by XR_EXT_hand_tracking.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	XR_FB_HAND_TRACKING_MESH_EXTENSION_NAME	The extension name.
static final int	XR_FB_hand_tracking_mesh_SPEC_VERSION	The extension specification version.
static final int	XR_TYPE_HAND_TRACKING_MESH_FB	Extends XrStructureType.
static final int	XR_TYPE_HAND_TRACKING_SCALE_FB	Extends XrStructureType.

Method Summary

Modifier and Type	Method	Description
static int	nxrGetHandMeshFB(XrHandTrackerEXT handTracker, long mesh)	Unsafe version of: GetHandMeshFB
static int	xrGetHandMeshFB(XrHandTrackerEXT handTracker, XrHandTrackingMeshFB mesh)	Create a foveation profile.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

XR_FB_hand_tracking_mesh_SPEC_VERSION

public static final int XR_FB_hand_tracking_mesh_SPEC_VERSION

The extension specification version.

See Also:

• Constant Field Values

XR_FB_HAND_TRACKING_MESH_EXTENSION_NAME

public static final String XR_FB_HAND_TRACKING_MESH_EXTENSION_NAME

The extension name.

See Also:

• Constant Field Values

XR_TYPE_HAND_TRACKING_MESH_FB

public static final int XR_TYPE_HAND_TRACKING_MESH_FB

Extends XrStructureType.

Enum values:

• TYPE_HAND_TRACKING_MESH_FB
• TYPE_HAND_TRACKING_SCALE_FB

See Also:

• Constant Field Values

XR_TYPE_HAND_TRACKING_SCALE_FB

public static final int XR_TYPE_HAND_TRACKING_SCALE_FB

Extends XrStructureType.

Enum values:

• TYPE_HAND_TRACKING_MESH_FB
• TYPE_HAND_TRACKING_SCALE_FB

See Also:

• Constant Field Values

Method Details

nxrGetHandMeshFB

public static int nxrGetHandMeshFB(XrHandTrackerEXT handTracker,
 long mesh)

Unsafe version of: GetHandMeshFB

xrGetHandMeshFB

public static int xrGetHandMeshFB(XrHandTrackerEXT handTracker,
 XrHandTrackingMeshFB mesh)

Create a foveation profile.

C Specification

The GetHandMeshFB function is defined as:

 XrResult xrGetHandMeshFB(
     XrHandTrackerEXT                            handTracker,
     XrHandTrackingMeshFB*                       mesh);

Description

The GetHandMeshFB function populates an XrHandTrackingMeshFB structure with enough information to render a skinned mesh driven by the hand joints. As discussed in the specification for that structure, the data enumerated by this call is constant during the lifetime of an XrInstance.

Valid Usage (Implicit)

• The XR_FB_hand_tracking_mesh extension must be enabled prior to calling GetHandMeshFB
• handTracker must be a valid XrHandTrackerEXT handle
• mesh must be a pointer to an XrHandTrackingMeshFB structure

Return Codes

On success, this command returns

• SUCCESS
• SESSION_LOSS_PENDING

On failure, this command returns

• ERROR_FUNCTION_UNSUPPORTED
• ERROR_VALIDATION_FAILURE
• ERROR_RUNTIME_FAILURE
• ERROR_HANDLE_INVALID
• ERROR_INSTANCE_LOST
• ERROR_SESSION_LOST
• ERROR_SIZE_INSUFFICIENT
• ERROR_FEATURE_UNSUPPORTED

See Also

XrHandTrackingMeshFB

Parameters:

handTracker - the XrHandTrackerEXT that is associated with a particular hand.

mesh - the XrHandTrackingMeshFB output structure.