1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/**************************************************************************/
/* openxr_composition_layer_quad.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "openxr_composition_layer_quad.h"
#include "../extensions/openxr_composition_layer_extension.h"
#include "../openxr_api.h"
#include "../openxr_interface.h"
#include "scene/3d/mesh_instance_3d.h"
#include "scene/main/viewport.h"
#include "scene/resources/3d/primitive_meshes.h"
OpenXRCompositionLayerQuad::OpenXRCompositionLayerQuad() {
composition_layer = {
XR_TYPE_COMPOSITION_LAYER_QUAD, // type
nullptr, // next
0, // layerFlags
XR_NULL_HANDLE, // space
XR_EYE_VISIBILITY_BOTH, // eyeVisibility
{}, // subImage
{ { 0, 0, 0, 0 }, { 0, 0, 0 } }, // pose
{ (float)quad_size.x, (float)quad_size.y }, // size
};
openxr_layer_provider = memnew(OpenXRViewportCompositionLayerProvider((XrCompositionLayerBaseHeader *)&composition_layer));
}
OpenXRCompositionLayerQuad::~OpenXRCompositionLayerQuad() {
}
void OpenXRCompositionLayerQuad::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_quad_size", "size"), &OpenXRCompositionLayerQuad::set_quad_size);
ClassDB::bind_method(D_METHOD("get_quad_size"), &OpenXRCompositionLayerQuad::get_quad_size);
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "quad_size", PROPERTY_HINT_NONE, ""), "set_quad_size", "get_quad_size");
}
void OpenXRCompositionLayerQuad::_on_openxr_session_begun() {
OpenXRCompositionLayer::_on_openxr_session_begun();
if (openxr_api) {
composition_layer.space = openxr_api->get_play_space();
}
}
Ref<Mesh> OpenXRCompositionLayerQuad::_create_fallback_mesh() {
Ref<QuadMesh> mesh;
mesh.instantiate();
mesh->set_size(quad_size);
return mesh;
}
void OpenXRCompositionLayerQuad::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_LOCAL_TRANSFORM_CHANGED: {
Transform3D transform = get_transform();
Quaternion quat(transform.basis.orthonormalized());
composition_layer.pose.orientation = { (float)quat.x, (float)quat.y, (float)quat.z, (float)quat.w };
composition_layer.pose.position = { (float)transform.origin.x, (float)transform.origin.y, (float)transform.origin.z };
} break;
}
}
void OpenXRCompositionLayerQuad::set_quad_size(const Size2 &p_size) {
quad_size = p_size;
composition_layer.size = { (float)quad_size.x, (float)quad_size.y };
update_fallback_mesh();
}
Size2 OpenXRCompositionLayerQuad::get_quad_size() const {
return quad_size;
}
Vector2 OpenXRCompositionLayerQuad::intersects_ray(const Vector3 &p_origin, const Vector3 &p_direction) const {
Transform3D quad_transform = get_global_transform();
Vector3 quad_normal = quad_transform.basis.get_column(2);
float denom = quad_normal.dot(p_direction);
if (Math::abs(denom) > 0.0001) {
Vector3 vector = quad_transform.origin - p_origin;
float t = vector.dot(quad_normal) / denom;
if (t < 0.0) {
return Vector2(-1.0, -1.0);
}
Vector3 intersection = p_origin + p_direction * t;
Vector3 relative_point = intersection - quad_transform.origin;
Vector2 projected_point = Vector2(
relative_point.dot(quad_transform.basis.get_column(0)),
relative_point.dot(quad_transform.basis.get_column(1)));
if (Math::abs(projected_point.x) > quad_size.x / 2.0) {
return Vector2(-1.0, -1.0);
}
if (Math::abs(projected_point.y) > quad_size.y / 2.0) {
return Vector2(-1.0, -1.0);
}
float u = 0.5 + (projected_point.x / quad_size.x);
float v = 1.0 - (0.5 + (projected_point.y / quad_size.y));
return Vector2(u, v);
}
return Vector2(-1.0, -1.0);
}
|
