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Improvements to VRS/Foveated rendering

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This commit is contained in:
Bastiaan Olij 2024-03-26 12:57:26 +11:00
parent 34b5e8f55c
commit 9042ddf19f
38 changed files with 708 additions and 124 deletions
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85
modules/openxr/openxr_api.cpp
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@ -54,6 +54,7 @@
#endif
#include "extensions/openxr_composition_layer_depth_extension.h"
#include "extensions/openxr_eye_gaze_interaction.h"
#include "extensions/openxr_fb_display_refresh_rate_extension.h"
#include "extensions/openxr_fb_foveation_extension.h"
#include "extensions/openxr_fb_update_swapchain_extension.h"
@ -1826,6 +1827,46 @@ bool OpenXRAPI::get_view_projection(uint32_t p_view, double p_z_near, double p_z
return graphics_extension->create_projection_fov(render_state.views[p_view].fov, p_z_near, p_z_far, p_camera_matrix);
}
Vector2 OpenXRAPI::get_eye_focus(uint32_t p_view, float p_aspect) {
ERR_FAIL_NULL_V(graphics_extension, Vector2());
if (!render_state.running) {
return Vector2();
}
// xrWaitFrame not run yet
if (render_state.predicted_display_time == 0) {
return Vector2();
}
// we don't have valid view info
if (render_state.views == nullptr || !render_state.view_pose_valid) {
return Vector2();
}
Projection cm;
if (!graphics_extension->create_projection_fov(render_state.views[p_view].fov, 0.1, 1000.0, cm)) {
return Vector2();
}
// Default focus to center...
Vector3 focus = cm.xform(Vector3(0.0, 0.0, 999.9));
// Lets check for eye tracking...
OpenXREyeGazeInteractionExtension *eye_gaze_interaction = OpenXREyeGazeInteractionExtension::get_singleton();
if (eye_gaze_interaction && eye_gaze_interaction->supports_eye_gaze_interaction()) {
Vector3 eye_gaze_pose;
if (eye_gaze_interaction->get_eye_gaze_pose(1.0, eye_gaze_pose)) {
Transform3D view_transform = transform_from_pose(render_state.views[p_view].pose);
eye_gaze_pose = view_transform.xform_inv(eye_gaze_pose);
focus = cm.xform(eye_gaze_pose);
}
}
return Vector2(focus.x, focus.y);
}
bool OpenXRAPI::poll_events() {
ERR_FAIL_COND_V(instance == XR_NULL_HANDLE, false);
@ -2633,10 +2674,23 @@ bool OpenXRAPI::xr_result(XrResult result, const char *format, Array args) const
RID OpenXRAPI::get_tracker_rid(XrPath p_path) {
List<RID> current;
tracker_owner.get_owned_list(&current);
for (int i = 0; i < current.size(); i++) {
Tracker *tracker = tracker_owner.get_or_null(current[i]);
for (const RID &E : current) {
Tracker *tracker = tracker_owner.get_or_null(E);
if (tracker && tracker->toplevel_path == p_path) {
return current[i];
return E;
}
}
return RID();
}
RID OpenXRAPI::find_tracker(const String &p_name) {
List<RID> current;
tracker_owner.get_owned_list(&current);
for (const RID &E : current) {
Tracker *tracker = tracker_owner.get_or_null(E);
if (tracker && tracker->name == p_name) {
return E;
}
}
@ -2827,10 +2881,23 @@ void OpenXRAPI::action_set_free(RID p_action_set) {
RID OpenXRAPI::get_action_rid(XrAction p_action) {
List<RID> current;
action_owner.get_owned_list(&current);
for (int i = 0; i < current.size(); i++) {
Action *action = action_owner.get_or_null(current[i]);
for (const RID &E : current) {
Action *action = action_owner.get_or_null(E);
if (action && action->handle == p_action) {
return current[i];
return E;
}
}
return RID();
}
RID OpenXRAPI::find_action(const String &p_name) {
List<RID> current;
action_owner.get_owned_list(&current);
for (const RID &E : current) {
Action *action = action_owner.get_or_null(E);
if (action && action->name == p_name) {
return E;
}
}
@ -2931,10 +2998,10 @@ void OpenXRAPI::action_free(RID p_action) {
RID OpenXRAPI::get_interaction_profile_rid(XrPath p_path) {
List<RID> current;
interaction_profile_owner.get_owned_list(&current);
for (int i = 0; i < current.size(); i++) {
InteractionProfile *ip = interaction_profile_owner.get_or_null(current[i]);
for (const RID &E : current) {
InteractionProfile *ip = interaction_profile_owner.get_or_null(E);
if (ip && ip->path == p_path) {
return current[i];
return E;
}
}