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OpenXRAPIExtension¶

Makes the OpenXR API available for GDExtension.

Description¶

OpenXRAPIExtension makes OpenXR available for GDExtension. It provides the OpenXR API to GDExtension through the get_instance_proc_addr method, and the OpenXR instance through get_instance.

It also provides methods for querying the status of OpenXR initialization, and helper methods for ease of use of the API with GDExtension.

Tutorials¶

Methods¶

bool	can_render()
String	get_error_string(result: int)
int	get_hand_tracker(hand_index: int)
int	get_instance()
int	get_instance_proc_addr(name: String)
int	get_next_frame_time()
int	get_play_space()
int	get_predicted_display_time()
int	get_session()
String	get_swapchain_format_name(swapchain_format: int)
int	get_system_id()
OpenXRAlphaBlendModeSupport	is_environment_blend_mode_alpha_supported()
bool	is_initialized()
bool	is_running()
bool	openxr_is_enabled(check_run_in_editor: bool) static
void	register_composition_layer_provider(extension: OpenXRExtensionWrapperExtension)
void	set_emulate_environment_blend_mode_alpha_blend(enabled: bool)
Transform3D	transform_from_pose(pose: `const void*`)
void	unregister_composition_layer_provider(extension: OpenXRExtensionWrapperExtension)
bool	xr_result(result: int, format: String, args: Array)

Enumerations¶

enum OpenXRAlphaBlendModeSupport: 🔗

OpenXRAlphaBlendModeSupport OPENXR_ALPHA_BLEND_MODE_SUPPORT_NONE = 0

Means that XRInterface.XR_ENV_BLEND_MODE_ALPHA_BLEND isn't supported at all.

OpenXRAlphaBlendModeSupport OPENXR_ALPHA_BLEND_MODE_SUPPORT_REAL = 1

Means that XRInterface.XR_ENV_BLEND_MODE_ALPHA_BLEND is really supported.

OpenXRAlphaBlendModeSupport OPENXR_ALPHA_BLEND_MODE_SUPPORT_EMULATING = 2

Means that XRInterface.XR_ENV_BLEND_MODE_ALPHA_BLEND is emulated.

Method Descriptions¶

bool can_render() 🔗

Returns true if OpenXR is initialized for rendering with an XR viewport.

String get_error_string(result: int) 🔗

Returns an error string for the given XrResult.

int get_hand_tracker(hand_index: int) 🔗

Returns the corresponding XRHandTrackerEXT handle for the given hand index value.

int get_instance() 🔗

Returns the XrInstance created during the initialization of the OpenXR API.

int get_instance_proc_addr(name: String) 🔗

Returns the function pointer of the OpenXR function with the specified name, cast to an integer. If the function with the given name does not exist, the method returns 0.

Note: openxr/util.h contains utility macros for acquiring OpenXR functions, e.g. GDEXTENSION_INIT_XR_FUNC_V(xrCreateAction).

int get_next_frame_time() 🔗

Returns the predicted display timing for the next frame.

int get_play_space() 🔗

Returns the play space, which is an XrSpace cast to an integer.

int get_predicted_display_time() 🔗

Returns the predicted display timing for the current frame.

int get_session() 🔗

Returns the OpenXR session, which is an XrSession cast to an integer.

String get_swapchain_format_name(swapchain_format: int) 🔗

Returns the name of the specified swapchain format.

int get_system_id() 🔗

Returns the id of the system, which is a XrSystemId cast to an integer.

OpenXRAlphaBlendModeSupport is_environment_blend_mode_alpha_supported() 🔗

Returns OpenXRAlphaBlendModeSupport denoting if XRInterface.XR_ENV_BLEND_MODE_ALPHA_BLEND is really supported, emulated or not supported at all.

bool is_initialized() 🔗

Returns true if OpenXR is initialized.

bool is_running() 🔗

Returns true if OpenXR is running (xrBeginSession was successfully called and the swapchains were created).

bool openxr_is_enabled(check_run_in_editor: bool) static 🔗

Returns true if OpenXR is enabled.

void register_composition_layer_provider(extension: OpenXRExtensionWrapperExtension) 🔗

Registers the given extension as a composition layer provider.

void set_emulate_environment_blend_mode_alpha_blend(enabled: bool) 🔗

If set to true, an OpenXR extension is loaded which is capable of emulating the XRInterface.XR_ENV_BLEND_MODE_ALPHA_BLEND blend mode.

Transform3D transform_from_pose(pose: const void*) 🔗

Creates a Transform3D from an XrPosef.

void unregister_composition_layer_provider(extension: OpenXRExtensionWrapperExtension) 🔗

Unregisters the given extension as a composition layer provider.

bool xr_result(result: int, format: String, args: Array) 🔗

Returns true if the provided XrResult (cast to an integer) is successful. Otherwise returns false and prints the XrResult converted to a string, with the specified additional information.