/*************************************************************************/ /* particles_editor_plugin.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */ /* */ /* 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 "particles_editor_plugin.h" #include "core/io/resource_loader.h" #include "editor/plugins/spatial_editor_plugin.h" #include "scene/3d/cpu_particles.h" #include "scene/resources/particles_material.h" bool ParticlesEditorBase::_generate(PoolVector<Vector3> &points, PoolVector<Vector3> &normals) { bool use_normals = emission_fill->get_selected() == 1; if (emission_fill->get_selected() < 2) { float area_accum = 0; Map<float, int> triangle_area_map; for (int i = 0; i < geometry.size(); i++) { float area = geometry[i].get_area(); if (area < CMP_EPSILON) continue; triangle_area_map[area_accum] = i; area_accum += area; } if (!triangle_area_map.size() || area_accum == 0) { EditorNode::get_singleton()->show_warning(TTR("The geometry's faces don't contain any area.")); return false; } int emissor_count = emission_amount->get_value(); for (int i = 0; i < emissor_count; i++) { float areapos = Math::random(0.0f, area_accum); Map<float, int>::Element *E = triangle_area_map.find_closest(areapos); ERR_FAIL_COND_V(!E, false); int index = E->get(); ERR_FAIL_INDEX_V(index, geometry.size(), false); // ok FINALLY get face Face3 face = geometry[index]; //now compute some position inside the face... Vector3 pos = face.get_random_point_inside(); points.push_back(pos); if (use_normals) { Vector3 normal = face.get_plane().normal; normals.push_back(normal); } } } else { int gcount = geometry.size(); if (gcount == 0) { EditorNode::get_singleton()->show_warning(TTR("The geometry doesn't contain any faces.")); return false; } PoolVector<Face3>::Read r = geometry.read(); AABB aabb; for (int i = 0; i < gcount; i++) { for (int j = 0; j < 3; j++) { if (i == 0 && j == 0) aabb.position = r[i].vertex[j]; else aabb.expand_to(r[i].vertex[j]); } } int emissor_count = emission_amount->get_value(); for (int i = 0; i < emissor_count; i++) { int attempts = 5; for (int j = 0; j < attempts; j++) { Vector3 dir; dir[Math::rand() % 3] = 1.0; Vector3 ofs = (Vector3(1, 1, 1) - dir) * Vector3(Math::randf(), Math::randf(), Math::randf()) * aabb.size + aabb.position; Vector3 ofsv = ofs + aabb.size * dir; //space it a little ofs -= dir; ofsv += dir; float max = -1e7, min = 1e7; for (int k = 0; k < gcount; k++) { const Face3 &f3 = r[k]; Vector3 res; if (f3.intersects_segment(ofs, ofsv, &res)) { res -= ofs; float d = dir.dot(res); if (d < min) min = d; if (d > max) max = d; } } if (max < min) continue; //lost attempt float val = min + (max - min) * Math::randf(); Vector3 point = ofs + dir * val; points.push_back(point); break; } } } return true; } void ParticlesEditorBase::_node_selected(const NodePath &p_path) { Node *sel = get_node(p_path); if (!sel) return; if (!sel->is_class("Spatial")) { EditorNode::get_singleton()->show_warning(vformat(TTR("\"%s\" doesn't inherit from Spatial."), sel->get_name())); return; } VisualInstance *vi = Object::cast_to<VisualInstance>(sel); if (!vi) { EditorNode::get_singleton()->show_warning(vformat(TTR("\"%s\" doesn't contain geometry."), sel->get_name())); return; } geometry = vi->get_faces(VisualInstance::FACES_SOLID); if (geometry.size() == 0) { EditorNode::get_singleton()->show_warning(vformat(TTR("\"%s\" doesn't contain face geometry."), sel->get_name())); return; } Transform geom_xform = base_node->get_global_transform().affine_inverse() * vi->get_global_transform(); int gc = geometry.size(); PoolVector<Face3>::Write w = geometry.write(); for (int i = 0; i < gc; i++) { for (int j = 0; j < 3; j++) { w[i].vertex[j] = geom_xform.xform(w[i].vertex[j]); } } w.release(); emission_dialog->popup_centered(Size2(300, 130)); } void ParticlesEditorBase::_bind_methods() { ClassDB::bind_method("_node_selected", &ParticlesEditorBase::_node_selected); ClassDB::bind_method("_generate_emission_points", &ParticlesEditorBase::_generate_emission_points); } ParticlesEditorBase::ParticlesEditorBase() { emission_dialog = memnew(ConfirmationDialog); emission_dialog->set_title(TTR("Create Emitter")); add_child(emission_dialog); VBoxContainer *emd_vb = memnew(VBoxContainer); emission_dialog->add_child(emd_vb); emission_amount = memnew(SpinBox); emission_amount->set_min(1); emission_amount->set_max(100000); emission_amount->set_value(512); emd_vb->add_margin_child(TTR("Emission Points:"), emission_amount); emission_fill = memnew(OptionButton); emission_fill->add_item(TTR("Surface Points")); emission_fill->add_item(TTR("Surface Points+Normal (Directed)")); emission_fill->add_item(TTR("Volume")); emd_vb->add_margin_child(TTR("Emission Source: "), emission_fill); emission_dialog->get_ok()->set_text(TTR("Create")); emission_dialog->connect("confirmed", this, "_generate_emission_points"); emission_file_dialog = memnew(EditorFileDialog); add_child(emission_file_dialog); emission_file_dialog->connect("file_selected", this, "_resource_seleted"); emission_tree_dialog = memnew(SceneTreeDialog); add_child(emission_tree_dialog); emission_tree_dialog->connect("selected", this, "_node_selected"); List<String> extensions; ResourceLoader::get_recognized_extensions_for_type("Mesh", &extensions); emission_file_dialog->clear_filters(); for (int i = 0; i < extensions.size(); i++) { emission_file_dialog->add_filter("*." + extensions[i] + " ; " + extensions[i].to_upper()); } emission_file_dialog->set_mode(EditorFileDialog::MODE_OPEN_FILE); } void ParticlesEditor::_node_removed(Node *p_node) { if (p_node == node) { node = NULL; hide(); } } void ParticlesEditor::_notification(int p_notification) { if (p_notification == NOTIFICATION_ENTER_TREE) { options->set_icon(options->get_popup()->get_icon("Particles", "EditorIcons")); get_tree()->connect("node_removed", this, "_node_removed"); } } void ParticlesEditor::_menu_option(int p_option) { switch (p_option) { case MENU_OPTION_GENERATE_AABB: { float gen_time = node->get_lifetime(); if (gen_time < 1.0) generate_seconds->set_value(1.0); else generate_seconds->set_value(trunc(gen_time) + 1.0); generate_aabb->popup_centered_minsize(); } break; case MENU_OPTION_CREATE_EMISSION_VOLUME_FROM_MESH: { Ref<ParticlesMaterial> material = node->get_process_material(); if (material.is_null()) { EditorNode::get_singleton()->show_warning(TTR("A processor material of type 'ParticlesMaterial' is required.")); return; } emission_file_dialog->popup_centered_ratio(); } break; case MENU_OPTION_CREATE_EMISSION_VOLUME_FROM_NODE: { Ref<ParticlesMaterial> material = node->get_process_material(); if (material.is_null()) { EditorNode::get_singleton()->show_warning(TTR("A processor material of type 'ParticlesMaterial' is required.")); return; } emission_tree_dialog->popup_centered_ratio(); } break; case MENU_OPTION_CONVERT_TO_CPU_PARTICLES: { CPUParticles *cpu_particles = memnew(CPUParticles); cpu_particles->convert_from_particles(node); cpu_particles->set_name(node->get_name()); cpu_particles->set_transform(node->get_transform()); cpu_particles->set_visible(node->is_visible()); cpu_particles->set_pause_mode(node->get_pause_mode()); UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo(); ur->create_action(TTR("Convert to CPUParticles")); ur->add_do_method(EditorNode::get_singleton()->get_scene_tree_dock(), "replace_node", node, cpu_particles, true, false); ur->add_do_reference(cpu_particles); ur->add_undo_method(EditorNode::get_singleton()->get_scene_tree_dock(), "replace_node", cpu_particles, node, false, false); ur->add_undo_reference(node); ur->commit_action(); } break; case MENU_OPTION_RESTART: { node->restart(); } break; } } void ParticlesEditor::_generate_aabb() { float time = generate_seconds->get_value(); float running = 0.0; EditorProgress ep("gen_aabb", TTR("Generating AABB"), int(time)); bool was_emitting = node->is_emitting(); if (!was_emitting) { node->set_emitting(true); OS::get_singleton()->delay_usec(1000); } AABB rect; while (running < time) { uint64_t ticks = OS::get_singleton()->get_ticks_usec(); ep.step("Generating...", int(running), true); OS::get_singleton()->delay_usec(1000); AABB capture = node->capture_aabb(); if (rect == AABB()) rect = capture; else rect.merge_with(capture); running += (OS::get_singleton()->get_ticks_usec() - ticks) / 1000000.0; } if (!was_emitting) { node->set_emitting(false); } UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo(); ur->create_action(TTR("Generate Visibility AABB")); ur->add_do_method(node, "set_visibility_aabb", rect); ur->add_undo_method(node, "set_visibility_aabb", node->get_visibility_aabb()); ur->commit_action(); } void ParticlesEditor::edit(Particles *p_particles) { base_node = p_particles; node = p_particles; } void ParticlesEditor::_generate_emission_points() { /// hacer codigo aca PoolVector<Vector3> points; PoolVector<Vector3> normals; if (!_generate(points, normals)) { return; } int point_count = points.size(); int w = 2048; int h = (point_count / 2048) + 1; PoolVector<uint8_t> point_img; point_img.resize(w * h * 3 * sizeof(float)); { PoolVector<uint8_t>::Write iw = point_img.write(); zeromem(iw.ptr(), w * h * 3 * sizeof(float)); PoolVector<Vector3>::Read r = points.read(); float *wf = (float *)iw.ptr(); for (int i = 0; i < point_count; i++) { wf[i * 3 + 0] = r[i].x; wf[i * 3 + 1] = r[i].y; wf[i * 3 + 2] = r[i].z; } } Ref<Image> image = memnew(Image(w, h, false, Image::FORMAT_RGBF, point_img)); Ref<ImageTexture> tex; tex.instance(); tex->create_from_image(image, Texture::FLAG_FILTER); Ref<ParticlesMaterial> material = node->get_process_material(); ERR_FAIL_COND(material.is_null()); if (normals.size() > 0) { material->set_emission_shape(ParticlesMaterial::EMISSION_SHAPE_DIRECTED_POINTS); material->set_emission_point_count(point_count); material->set_emission_point_texture(tex); PoolVector<uint8_t> point_img2; point_img2.resize(w * h * 3 * sizeof(float)); { PoolVector<uint8_t>::Write iw = point_img2.write(); zeromem(iw.ptr(), w * h * 3 * sizeof(float)); PoolVector<Vector3>::Read r = normals.read(); float *wf = (float *)iw.ptr(); for (int i = 0; i < point_count; i++) { wf[i * 3 + 0] = r[i].x; wf[i * 3 + 1] = r[i].y; wf[i * 3 + 2] = r[i].z; } } Ref<Image> image2 = memnew(Image(w, h, false, Image::FORMAT_RGBF, point_img2)); Ref<ImageTexture> tex2; tex2.instance(); tex2->create_from_image(image2, Texture::FLAG_FILTER); material->set_emission_normal_texture(tex2); } else { material->set_emission_shape(ParticlesMaterial::EMISSION_SHAPE_POINTS); material->set_emission_point_count(point_count); material->set_emission_point_texture(tex); } } void ParticlesEditor::_bind_methods() { ClassDB::bind_method("_menu_option", &ParticlesEditor::_menu_option); ClassDB::bind_method("_generate_aabb", &ParticlesEditor::_generate_aabb); ClassDB::bind_method("_node_removed", &ParticlesEditor::_node_removed); } ParticlesEditor::ParticlesEditor() { node = NULL; particles_editor_hb = memnew(HBoxContainer); SpatialEditor::get_singleton()->add_control_to_menu_panel(particles_editor_hb); options = memnew(MenuButton); options->set_switch_on_hover(true); particles_editor_hb->add_child(options); particles_editor_hb->hide(); options->set_text(TTR("Particles")); options->get_popup()->add_item(TTR("Generate AABB"), MENU_OPTION_GENERATE_AABB); options->get_popup()->add_separator(); options->get_popup()->add_item(TTR("Create Emission Points From Mesh"), MENU_OPTION_CREATE_EMISSION_VOLUME_FROM_MESH); options->get_popup()->add_item(TTR("Create Emission Points From Node"), MENU_OPTION_CREATE_EMISSION_VOLUME_FROM_NODE); options->get_popup()->add_separator(); options->get_popup()->add_item(TTR("Convert to CPUParticles"), MENU_OPTION_CONVERT_TO_CPU_PARTICLES); options->get_popup()->add_separator(); options->get_popup()->add_item(TTR("Restart"), MENU_OPTION_RESTART); options->get_popup()->connect("id_pressed", this, "_menu_option"); generate_aabb = memnew(ConfirmationDialog); generate_aabb->set_title(TTR("Generate Visibility AABB")); VBoxContainer *genvb = memnew(VBoxContainer); generate_aabb->add_child(genvb); generate_seconds = memnew(SpinBox); genvb->add_margin_child(TTR("Generation Time (sec):"), generate_seconds); generate_seconds->set_min(0.1); generate_seconds->set_max(25); generate_seconds->set_value(2); add_child(generate_aabb); generate_aabb->connect("confirmed", this, "_generate_aabb"); } void ParticlesEditorPlugin::edit(Object *p_object) { particles_editor->edit(Object::cast_to<Particles>(p_object)); } bool ParticlesEditorPlugin::handles(Object *p_object) const { return p_object->is_class("Particles"); } void ParticlesEditorPlugin::make_visible(bool p_visible) { if (p_visible) { particles_editor->show(); particles_editor->particles_editor_hb->show(); } else { particles_editor->particles_editor_hb->hide(); particles_editor->hide(); particles_editor->edit(NULL); } } ParticlesEditorPlugin::ParticlesEditorPlugin(EditorNode *p_node) { editor = p_node; particles_editor = memnew(ParticlesEditor); editor->get_viewport()->add_child(particles_editor); particles_editor->hide(); } ParticlesEditorPlugin::~ParticlesEditorPlugin() { }