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Fix issue with OpenXR environment blend mode not being applied properly

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This commit is contained in:
Bastiaan Olij 2023-09-12 12:39:48 +10:00
parent 3ed4497113
commit 3806d964e3
9 changed files with 101 additions and 11 deletions
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3
doc/classes/ProjectSettings.xml
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@ -2709,6 +2709,9 @@
<member name="xr/openxr/enabled" type="bool" setter="" getter="" default="false">
If [code]true[/code] Godot will setup and initialize OpenXR on startup.
</member>
<member name="xr/openxr/environment_blend_mode" type="int" setter="" getter="" default="&quot;0&quot;">
Specify how OpenXR should blend in the environment. This is specific to certain AR and passthrough devices where camera images are blended in by the XR compositor.
</member>
<member name="xr/openxr/form_factor" type="int" setter="" getter="" default="&quot;0&quot;">
Specify whether OpenXR should be configured for an HMD or a hand held device.
</member>

3
doc/classes/XRInterface.xml
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@ -188,6 +188,9 @@
<member name="ar_is_anchor_detection_enabled" type="bool" setter="set_anchor_detection_is_enabled" getter="get_anchor_detection_is_enabled" default="false">
On an AR interface, [code]true[/code] if anchor detection is enabled.
</member>
<member name="environment_blend_mode" type="int" setter="set_environment_blend_mode" getter="get_environment_blend_mode" enum="XRInterface.EnvironmentBlendMode" default="0">
Specify how XR should blend in the environment. This is specific to certain AR and passthrough devices where camera images are blended in by the XR compositor.
</member>
<member name="interface_is_primary" type="bool" setter="set_primary" getter="is_primary" default="false">
[code]true[/code] if this is the primary interface.
</member>

1
main/main.cpp
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@ -2048,6 +2048,7 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
GLOBAL_DEF_BASIC(PropertyInfo(Variant::INT, "xr/openxr/form_factor", PROPERTY_HINT_ENUM, "Head Mounted,Handheld"), "0");
GLOBAL_DEF_BASIC(PropertyInfo(Variant::INT, "xr/openxr/view_configuration", PROPERTY_HINT_ENUM, "Mono,Stereo"), "1"); // "Mono,Stereo,Quad,Observer"
GLOBAL_DEF_BASIC(PropertyInfo(Variant::INT, "xr/openxr/reference_space", PROPERTY_HINT_ENUM, "Local,Stage"), "1");
GLOBAL_DEF_BASIC(PropertyInfo(Variant::INT, "xr/openxr/environment_blend_mode", PROPERTY_HINT_ENUM, "Opaque,Additive,Alpha"), "0");
GLOBAL_DEF_BASIC("xr/openxr/submit_depth_buffer", false);
GLOBAL_DEF_BASIC("xr/openxr/startup_alert", true);

76
modules/openxr/openxr_api.cpp
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@ -481,11 +481,19 @@ bool OpenXRAPI::load_supported_view_configuration_types() {
result = xrEnumerateViewConfigurations(instance, system_id, num_view_configuration_types, &num_view_configuration_types, supported_view_configuration_types);
ERR_FAIL_COND_V_MSG(XR_FAILED(result), false, "OpenXR: Failed to enumerateview configurations");
ERR_FAIL_COND_V_MSG(num_view_configuration_types == 0, false, "OpenXR: Failed to enumerateview configurations"); // JIC there should be at least 1!
for (uint32_t i = 0; i < num_view_configuration_types; i++) {
print_verbose(String("OpenXR: Found supported view configuration ") + OpenXRUtil::get_view_configuration_name(supported_view_configuration_types[i]));
}
// Check value we loaded at startup...
if (!is_view_configuration_supported(view_configuration)) {
print_verbose(String("OpenXR: ") + OpenXRUtil::get_view_configuration_name(view_configuration) + String(" isn't supported, defaulting to ") + OpenXRUtil::get_view_configuration_name(supported_view_configuration_types[0]));
view_configuration = supported_view_configuration_types[0];
}
return true;
}
@ -512,11 +520,19 @@ bool OpenXRAPI::load_supported_environmental_blend_modes() {
result = xrEnumerateEnvironmentBlendModes(instance, system_id, view_configuration, num_supported_environment_blend_modes, &num_supported_environment_blend_modes, supported_environment_blend_modes);
ERR_FAIL_COND_V_MSG(XR_FAILED(result), false, "OpenXR: Failed to enumerate environmental blend modes");
ERR_FAIL_COND_V_MSG(num_supported_environment_blend_modes == 0, false, "OpenXR: Failed to enumerate environmental blend modes"); // JIC there should be at least 1!
for (uint32_t i = 0; i < num_supported_environment_blend_modes; i++) {
print_verbose(String("OpenXR: Found environmental blend mode ") + OpenXRUtil::get_environment_blend_mode_name(supported_environment_blend_modes[i]));
}
// Check value we loaded at startup...
if (!is_environment_blend_mode_supported(environment_blend_mode)) {
print_verbose(String("OpenXR: ") + OpenXRUtil::get_environment_blend_mode_name(environment_blend_mode) + String(" isn't supported, defaulting to ") + OpenXRUtil::get_environment_blend_mode_name(supported_environment_blend_modes[0]));
environment_blend_mode = supported_environment_blend_modes[0];
}
return true;
}
@ -665,11 +681,19 @@ bool OpenXRAPI::load_supported_reference_spaces() {
result = xrEnumerateReferenceSpaces(session, num_reference_spaces, &num_reference_spaces, supported_reference_spaces);
ERR_FAIL_COND_V_MSG(XR_FAILED(result), false, "OpenXR: Failed to enumerate reference spaces");
ERR_FAIL_COND_V_MSG(num_reference_spaces == 0, false, "OpenXR: Failed to enumerate reference spaces");
for (uint32_t i = 0; i < num_reference_spaces; i++) {
print_verbose(String("OpenXR: Found supported reference space ") + OpenXRUtil::get_reference_space_name(supported_reference_spaces[i]));
}
// Check value we loaded at startup...
if (!is_reference_space_supported(reference_space)) {
print_verbose(String("OpenXR: ") + OpenXRUtil::get_reference_space_name(reference_space) + String(" isn't supported, defaulting to ") + OpenXRUtil::get_reference_space_name(supported_reference_spaces[0]));
reference_space = supported_reference_spaces[0];
}
return true;
}
@ -1917,10 +1941,15 @@ void OpenXRAPI::end_frame() {
}
}
XrCompositionLayerFlags layer_flags = XR_COMPOSITION_LAYER_CORRECT_CHROMATIC_ABERRATION_BIT;
if (layers_list.size() > 0 || environment_blend_mode != XR_ENVIRONMENT_BLEND_MODE_OPAQUE) {
layer_flags |= XR_COMPOSITION_LAYER_BLEND_TEXTURE_SOURCE_ALPHA_BIT;
}
XrCompositionLayerProjection projection_layer = {
XR_TYPE_COMPOSITION_LAYER_PROJECTION, // type
nullptr, // next
layers_list.size() > 0 ? XR_COMPOSITION_LAYER_BLEND_TEXTURE_SOURCE_ALPHA_BIT | XR_COMPOSITION_LAYER_CORRECT_CHROMATIC_ABERRATION_BIT : XR_COMPOSITION_LAYER_CORRECT_CHROMATIC_ABERRATION_BIT, // layerFlags
layer_flags, // layerFlags
play_space, // space
view_count, // viewCount
projection_views, // views
@ -1984,8 +2013,8 @@ OpenXRAPI::OpenXRAPI() {
} else {
// Load settings from project settings
int ff = GLOBAL_GET("xr/openxr/form_factor");
switch (ff) {
int form_factor_setting = GLOBAL_GET("xr/openxr/form_factor");
switch (form_factor_setting) {
case 0: {
form_factor = XR_FORM_FACTOR_HEAD_MOUNTED_DISPLAY;
} break;
@ -1996,8 +2025,8 @@ OpenXRAPI::OpenXRAPI() {
break;
}
int vc = GLOBAL_GET("xr/openxr/view_configuration");
switch (vc) {
int view_configuration_setting = GLOBAL_GET("xr/openxr/view_configuration");
switch (view_configuration_setting) {
case 0: {
view_configuration = XR_VIEW_CONFIGURATION_TYPE_PRIMARY_MONO;
} break;
@ -2016,8 +2045,8 @@ OpenXRAPI::OpenXRAPI() {
break;
}
int rs = GLOBAL_GET("xr/openxr/reference_space");
switch (rs) {
int reference_space_setting = GLOBAL_GET("xr/openxr/reference_space");
switch (reference_space_setting) {
case 0: {
reference_space = XR_REFERENCE_SPACE_TYPE_LOCAL;
} break;
@ -2028,6 +2057,21 @@ OpenXRAPI::OpenXRAPI() {
break;
}
int environment_blend_mode_setting = GLOBAL_GET("xr/openxr/environment_blend_mode");
switch (environment_blend_mode_setting) {
case 0: {
environment_blend_mode = XR_ENVIRONMENT_BLEND_MODE_OPAQUE;
} break;
case 1: {
environment_blend_mode = XR_ENVIRONMENT_BLEND_MODE_ADDITIVE;
} break;
case 2: {
environment_blend_mode = XR_ENVIRONMENT_BLEND_MODE_ALPHA_BLEND;
} break;
default:
break;
}
submit_depth_buffer = GLOBAL_GET("xr/openxr/submit_depth_buffer");
}
@ -2857,12 +2901,24 @@ const XrEnvironmentBlendMode *OpenXRAPI::get_supported_environment_blend_modes(u
return supported_environment_blend_modes;
}
bool OpenXRAPI::set_environment_blend_mode(XrEnvironmentBlendMode mode) {
bool OpenXRAPI::is_environment_blend_mode_supported(XrEnvironmentBlendMode p_blend_mode) const {
ERR_FAIL_NULL_V(supported_environment_blend_modes, false);
for (uint32_t i = 0; i < num_supported_environment_blend_modes; i++) {
if (supported_environment_blend_modes[i] == mode) {
environment_blend_mode = mode;
if (supported_environment_blend_modes[i] == p_blend_mode) {
return true;
}
}
return false;
}
bool OpenXRAPI::set_environment_blend_mode(XrEnvironmentBlendMode p_blend_mode) {
// We allow setting this when not initialised and will check if it is supported when initialising.
// After OpenXR is initialised we verify we're setting a supported blend mode.
if (!is_initialized() || is_environment_blend_mode_supported(p_blend_mode)) {
environment_blend_mode = p_blend_mode;
return true;
}
return false;
}

4
modules/openxr/openxr_api.h
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@ -405,7 +405,9 @@ public:
void unregister_composition_layer_provider(OpenXRCompositionLayerProvider *provider);
const XrEnvironmentBlendMode *get_supported_environment_blend_modes(uint32_t &count);
bool set_environment_blend_mode(XrEnvironmentBlendMode mode);
bool is_environment_blend_mode_supported(XrEnvironmentBlendMode p_blend_mode) const;
bool set_environment_blend_mode(XrEnvironmentBlendMode p_blend_mode);
XrEnvironmentBlendMode get_environment_blend_mode() const { return environment_blend_mode; }
OpenXRAPI();
~OpenXRAPI();

21
modules/openxr/openxr_interface.cpp
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@ -985,6 +985,27 @@ Array OpenXRInterface::get_supported_environment_blend_modes() {
return modes;
}
XRInterface::EnvironmentBlendMode OpenXRInterface::get_environment_blend_mode() const {
if (openxr_api) {
XrEnvironmentBlendMode oxr_blend_mode = openxr_api->get_environment_blend_mode();
switch (oxr_blend_mode) {
case XR_ENVIRONMENT_BLEND_MODE_OPAQUE: {
return XR_ENV_BLEND_MODE_OPAQUE;
} break;
case XR_ENVIRONMENT_BLEND_MODE_ADDITIVE: {
return XR_ENV_BLEND_MODE_ADDITIVE;
} break;
case XR_ENVIRONMENT_BLEND_MODE_ALPHA_BLEND: {
return XR_ENV_BLEND_MODE_ALPHA_BLEND;
} break;
default:
break;
}
}
return XR_ENV_BLEND_MODE_OPAQUE;
}
bool OpenXRInterface::set_environment_blend_mode(XRInterface::EnvironmentBlendMode mode) {
if (openxr_api) {
XrEnvironmentBlendMode oxr_blend_mode;

1
modules/openxr/openxr_interface.h
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@ -152,6 +152,7 @@ public:
/** environment blend mode. */
virtual Array get_supported_environment_blend_modes() override;
virtual XRInterface::EnvironmentBlendMode get_environment_blend_mode() const override;
virtual bool set_environment_blend_mode(XRInterface::EnvironmentBlendMode mode) override;
void on_state_ready();

2
servers/xr/xr_interface.cpp
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@ -79,6 +79,8 @@ void XRInterface::_bind_methods() {
/** environment blend mode. */
ClassDB::bind_method(D_METHOD("get_supported_environment_blend_modes"), &XRInterface::get_supported_environment_blend_modes);
ClassDB::bind_method(D_METHOD("set_environment_blend_mode", "mode"), &XRInterface::set_environment_blend_mode);
ClassDB::bind_method(D_METHOD("get_environment_blend_mode"), &XRInterface::get_environment_blend_mode);
ADD_PROPERTY(PropertyInfo(Variant::INT, "environment_blend_mode"), "set_environment_blend_mode", "get_environment_blend_mode");
ADD_GROUP("AR", "ar_");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "ar_is_anchor_detection_enabled"), "set_anchor_detection_is_enabled", "get_anchor_detection_is_enabled");

1
servers/xr/xr_interface.h
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@ -147,6 +147,7 @@ public:
/** environment blend mode. */
virtual Array get_supported_environment_blend_modes();
virtual XRInterface::EnvironmentBlendMode get_environment_blend_mode() const { return XR_ENV_BLEND_MODE_OPAQUE; }
virtual bool set_environment_blend_mode(EnvironmentBlendMode mode) { return false; }
XRInterface();