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/**************************************************************************/
/* lightmap_probe_gizmo_plugin.cpp */
/**************************************************************************/
/* This file is part of: */
/* REDOT ENGINE */
/* https://redotengine.org */
/**************************************************************************/
/* Copyright (c) 2024-present Redot Engine contributors */
/* (see REDOT_AUTHORS.md) */
/* 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 "lightmap_probe_gizmo_plugin.h"
#include "editor/editor_node.h"
#include "editor/editor_settings.h"
#include "editor/editor_string_names.h"
#include "editor/plugins/node_3d_editor_plugin.h"
#include "scene/3d/lightmap_probe.h"
LightmapProbeGizmoPlugin::LightmapProbeGizmoPlugin() {
create_icon_material("lightmap_probe_icon", EditorNode::get_singleton()->get_editor_theme()->get_icon(SNAME("GizmoLightmapProbe"), EditorStringName(EditorIcons)));
Color gizmo_color = EDITOR_GET("editors/3d_gizmos/gizmo_colors/lightprobe_lines");
gizmo_color.a = 0.3;
create_material("lightprobe_lines", gizmo_color);
}
bool LightmapProbeGizmoPlugin::has_gizmo(Node3D *p_spatial) {
return Object::cast_to<LightmapProbe>(p_spatial) != nullptr;
}
String LightmapProbeGizmoPlugin::get_gizmo_name() const {
return "LightmapProbe";
}
int LightmapProbeGizmoPlugin::get_priority() const {
return -1;
}
void LightmapProbeGizmoPlugin::redraw(EditorNode3DGizmo *p_gizmo) {
Ref<Material> material_lines = get_material("lightprobe_lines", p_gizmo);
p_gizmo->clear();
Vector<Vector3> lines;
int stack_count = 8;
int sector_count = 16;
float sector_step = (Math_PI * 2.0) / sector_count;
float stack_step = Math_PI / stack_count;
Vector<Vector3> vertices;
float radius = 0.2;
for (int i = 0; i <= stack_count; ++i) {
float stack_angle = Math_PI / 2 - i * stack_step; // starting from pi/2 to -pi/2
float xy = radius * Math::cos(stack_angle); // r * cos(u)
float z = radius * Math::sin(stack_angle); // r * sin(u)
// add (sector_count+1) vertices per stack
// the first and last vertices have same position and normal, but different tex coords
for (int j = 0; j <= sector_count; ++j) {
float sector_angle = j * sector_step; // starting from 0 to 2pi
// vertex position (x, y, z)
float x = xy * Math::cos(sector_angle); // r * cos(u) * cos(v)
float y = xy * Math::sin(sector_angle); // r * cos(u) * sin(v)
Vector3 n = Vector3(x, z, y);
vertices.push_back(n);
}
}
for (int i = 0; i < stack_count; ++i) {
int k1 = i * (sector_count + 1); // beginning of current stack
int k2 = k1 + sector_count + 1; // beginning of next stack
for (int j = 0; j < sector_count; ++j, ++k1, ++k2) {
// 2 triangles per sector excluding first and last stacks
// k1 => k2 => k1+1
if (i != 0) {
lines.push_back(vertices[k1]);
lines.push_back(vertices[k2]);
lines.push_back(vertices[k1]);
lines.push_back(vertices[k1 + 1]);
}
if (i != (stack_count - 1)) {
lines.push_back(vertices[k1 + 1]);
lines.push_back(vertices[k2]);
lines.push_back(vertices[k2]);
lines.push_back(vertices[k2 + 1]);
}
}
}
const Ref<Material> icon = get_material("lightmap_probe_icon", p_gizmo);
p_gizmo->add_lines(lines, material_lines);
p_gizmo->add_unscaled_billboard(icon, 0.05);
}
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