1/**************************************************************************/
2/* voxel_gi_gizmo_plugin.cpp */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
6/* https://godotengine.org */
7/**************************************************************************/
8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
10/* */
11/* Permission is hereby granted, free of charge, to any person obtaining */
12/* a copy of this software and associated documentation files (the */
13/* "Software"), to deal in the Software without restriction, including */
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17/* the following conditions: */
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20/* included in all copies or substantial portions of the Software. */
21/* */
22/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
23/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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29/**************************************************************************/
30
31#include "voxel_gi_gizmo_plugin.h"
32
33#include "editor/editor_node.h"
34#include "editor/editor_settings.h"
35#include "editor/editor_string_names.h"
36#include "editor/editor_undo_redo_manager.h"
37#include "editor/plugins/gizmos/gizmo_3d_helper.h"
38#include "editor/plugins/node_3d_editor_plugin.h"
39#include "scene/3d/voxel_gi.h"
40
41VoxelGIGizmoPlugin::VoxelGIGizmoPlugin() {
42 helper.instantiate();
43
44 Color gizmo_color = EDITOR_DEF("editors/3d_gizmos/gizmo_colors/voxel_gi", Color(0.5, 1, 0.6));
45
46 create_material("voxel_gi_material", gizmo_color);
47
48 // This gizmo draws a lot of lines. Use a low opacity to make it not too intrusive.
49 gizmo_color.a = 0.1;
50 create_material("voxel_gi_internal_material", gizmo_color);
51
52 gizmo_color.a = 0.05;
53 create_material("voxel_gi_solid_material", gizmo_color);
54
55 create_icon_material("voxel_gi_icon", EditorNode::get_singleton()->get_editor_theme()->get_icon(SNAME("GizmoVoxelGI"), EditorStringName(EditorIcons)));
56 create_handle_material("handles");
57}
58
59VoxelGIGizmoPlugin::~VoxelGIGizmoPlugin() {
60}
61
62bool VoxelGIGizmoPlugin::has_gizmo(Node3D *p_spatial) {
63 return Object::cast_to<VoxelGI>(p_spatial) != nullptr;
64}
65
66String VoxelGIGizmoPlugin::get_gizmo_name() const {
67 return "VoxelGI";
68}
69
70int VoxelGIGizmoPlugin::get_priority() const {
71 return -1;
72}
73
74String VoxelGIGizmoPlugin::get_handle_name(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary) const {
75 return helper->box_get_handle_name(p_id);
76}
77
78Variant VoxelGIGizmoPlugin::get_handle_value(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary) const {
79 VoxelGI *probe = Object::cast_to<VoxelGI>(p_gizmo->get_node_3d());
80 return probe->get_size();
81}
82
83void VoxelGIGizmoPlugin::begin_handle_action(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary) {
84 helper->initialize_handle_action(get_handle_value(p_gizmo, p_id, p_secondary), p_gizmo->get_node_3d()->get_global_transform());
85}
86
87void VoxelGIGizmoPlugin::set_handle(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary, Camera3D *p_camera, const Point2 &p_point) {
88 VoxelGI *probe = Object::cast_to<VoxelGI>(p_gizmo->get_node_3d());
89
90 Vector3 sg[2];
91 helper->get_segment(p_camera, p_point, sg);
92
93 Vector3 size = probe->get_size();
94 Vector3 position;
95 helper->box_set_handle(sg, p_id, size, position);
96 probe->set_size(size);
97 probe->set_global_position(position);
98}
99
100void VoxelGIGizmoPlugin::commit_handle(const EditorNode3DGizmo *p_gizmo, int p_id, bool p_secondary, const Variant &p_restore, bool p_cancel) {
101 helper->box_commit_handle(TTR("Change Probe Size"), p_cancel, p_gizmo->get_node_3d());
102}
103
104void VoxelGIGizmoPlugin::redraw(EditorNode3DGizmo *p_gizmo) {
105 p_gizmo->clear();
106
107 if (p_gizmo->is_selected()) {
108 VoxelGI *probe = Object::cast_to<VoxelGI>(p_gizmo->get_node_3d());
109 Ref<Material> material = get_material("voxel_gi_material", p_gizmo);
110 Ref<Material> material_internal = get_material("voxel_gi_internal_material", p_gizmo);
111
112 Vector<Vector3> lines;
113 Vector3 size = probe->get_size();
114
115 static const int subdivs[VoxelGI::SUBDIV_MAX] = { 64, 128, 256, 512 };
116
117 AABB aabb = AABB(-size / 2, size);
118 int subdiv = subdivs[probe->get_subdiv()];
119 float cell_size = aabb.get_longest_axis_size() / subdiv;
120
121 for (int i = 0; i < 12; i++) {
122 Vector3 a, b;
123 aabb.get_edge(i, a, b);
124 lines.push_back(a);
125 lines.push_back(b);
126 }
127
128 p_gizmo->add_lines(lines, material);
129
130 lines.clear();
131
132 for (int i = 1; i < subdiv; i++) {
133 for (int j = 0; j < 3; j++) {
134 if (cell_size * i > aabb.size[j]) {
135 continue;
136 }
137
138 int j_n1 = (j + 1) % 3;
139 int j_n2 = (j + 2) % 3;
140
141 for (int k = 0; k < 4; k++) {
142 Vector3 from = aabb.position, to = aabb.position;
143 from[j] += cell_size * i;
144 to[j] += cell_size * i;
145
146 if (k & 1) {
147 to[j_n1] += aabb.size[j_n1];
148 } else {
149 to[j_n2] += aabb.size[j_n2];
150 }
151
152 if (k & 2) {
153 from[j_n1] += aabb.size[j_n1];
154 from[j_n2] += aabb.size[j_n2];
155 }
156
157 lines.push_back(from);
158 lines.push_back(to);
159 }
160 }
161 }
162
163 p_gizmo->add_lines(lines, material_internal);
164
165 Vector<Vector3> handles = helper->box_get_handles(probe->get_size());
166
167 if (p_gizmo->is_selected()) {
168 Ref<Material> solid_material = get_material("voxel_gi_solid_material", p_gizmo);
169 p_gizmo->add_solid_box(solid_material, aabb.get_size());
170 }
171
172 p_gizmo->add_handles(handles, get_material("handles"));
173 }
174
175 Ref<Material> icon = get_material("voxel_gi_icon", p_gizmo);
176 p_gizmo->add_unscaled_billboard(icon, 0.05);
177}
178