57f52092c3
Restarting particle animation frequently is often done in the VFX tweaking process. This shortcut is available for both GPUParticles and CPUParticles, in 2D and 3D.
312 lines
11 KiB
C++
312 lines
11 KiB
C++
/**************************************************************************/
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/* cpu_particles_2d_editor_plugin.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "cpu_particles_2d_editor_plugin.h"
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#include "canvas_item_editor_plugin.h"
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#include "core/io/image_loader.h"
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#include "editor/editor_node.h"
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#include "editor/editor_settings.h"
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#include "editor/editor_undo_redo_manager.h"
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#include "editor/gui/editor_file_dialog.h"
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#include "editor/scene_tree_dock.h"
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#include "scene/2d/cpu_particles_2d.h"
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#include "scene/2d/gpu_particles_2d.h"
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#include "scene/gui/check_box.h"
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#include "scene/gui/menu_button.h"
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#include "scene/gui/option_button.h"
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#include "scene/gui/separator.h"
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#include "scene/gui/spin_box.h"
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#include "scene/resources/particle_process_material.h"
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void CPUParticles2DEditorPlugin::edit(Object *p_object) {
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particles = Object::cast_to<CPUParticles2D>(p_object);
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}
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bool CPUParticles2DEditorPlugin::handles(Object *p_object) const {
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return p_object->is_class("CPUParticles2D");
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}
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void CPUParticles2DEditorPlugin::make_visible(bool p_visible) {
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if (p_visible) {
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toolbar->show();
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} else {
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toolbar->hide();
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}
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}
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void CPUParticles2DEditorPlugin::_file_selected(const String &p_file) {
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source_emission_file = p_file;
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emission_mask->popup_centered();
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}
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void CPUParticles2DEditorPlugin::_menu_callback(int p_idx) {
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switch (p_idx) {
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case MENU_LOAD_EMISSION_MASK: {
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file->popup_file_dialog();
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} break;
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case MENU_CLEAR_EMISSION_MASK: {
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emission_mask->popup_centered();
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} break;
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case MENU_RESTART: {
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particles->restart();
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} break;
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case MENU_CONVERT_TO_GPU_PARTICLES: {
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GPUParticles2D *gpu_particles = memnew(GPUParticles2D);
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gpu_particles->convert_from_particles(particles);
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gpu_particles->set_name(particles->get_name());
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gpu_particles->set_transform(particles->get_transform());
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gpu_particles->set_visible(particles->is_visible());
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gpu_particles->set_process_mode(particles->get_process_mode());
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EditorUndoRedoManager *ur = EditorUndoRedoManager::get_singleton();
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ur->create_action(TTR("Convert to GPUParticles3D"), UndoRedo::MERGE_DISABLE, particles);
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SceneTreeDock::get_singleton()->replace_node(particles, gpu_particles);
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ur->commit_action(false);
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} break;
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}
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}
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void CPUParticles2DEditorPlugin::_generate_emission_mask() {
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Ref<Image> img;
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img.instantiate();
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Error err = ImageLoader::load_image(source_emission_file, img);
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ERR_FAIL_COND_MSG(err != OK, "Error loading image '" + source_emission_file + "'.");
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if (img->is_compressed()) {
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img->decompress();
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}
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img->convert(Image::FORMAT_RGBA8);
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ERR_FAIL_COND(img->get_format() != Image::FORMAT_RGBA8);
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Size2i s = img->get_size();
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ERR_FAIL_COND(s.width == 0 || s.height == 0);
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Vector<Point2> valid_positions;
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Vector<Point2> valid_normals;
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Vector<uint8_t> valid_colors;
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valid_positions.resize(s.width * s.height);
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EmissionMode emode = (EmissionMode)emission_mask_mode->get_selected();
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if (emode == EMISSION_MODE_BORDER_DIRECTED) {
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valid_normals.resize(s.width * s.height);
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}
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bool capture_colors = emission_colors->is_pressed();
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if (capture_colors) {
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valid_colors.resize(s.width * s.height * 4);
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}
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int vpc = 0;
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{
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Vector<uint8_t> img_data = img->get_data();
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const uint8_t *r = img_data.ptr();
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for (int i = 0; i < s.width; i++) {
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for (int j = 0; j < s.height; j++) {
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uint8_t a = r[(j * s.width + i) * 4 + 3];
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if (a > 128) {
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if (emode == EMISSION_MODE_SOLID) {
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if (capture_colors) {
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valid_colors.write[vpc * 4 + 0] = r[(j * s.width + i) * 4 + 0];
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valid_colors.write[vpc * 4 + 1] = r[(j * s.width + i) * 4 + 1];
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valid_colors.write[vpc * 4 + 2] = r[(j * s.width + i) * 4 + 2];
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valid_colors.write[vpc * 4 + 3] = r[(j * s.width + i) * 4 + 3];
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}
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valid_positions.write[vpc++] = Point2(i, j);
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} else {
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bool on_border = false;
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for (int x = i - 1; x <= i + 1; x++) {
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for (int y = j - 1; y <= j + 1; y++) {
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if (x < 0 || y < 0 || x >= s.width || y >= s.height || r[(y * s.width + x) * 4 + 3] <= 128) {
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on_border = true;
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break;
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}
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}
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if (on_border) {
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break;
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}
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}
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if (on_border) {
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valid_positions.write[vpc] = Point2(i, j);
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if (emode == EMISSION_MODE_BORDER_DIRECTED) {
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Vector2 normal;
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for (int x = i - 2; x <= i + 2; x++) {
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for (int y = j - 2; y <= j + 2; y++) {
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if (x == i && y == j) {
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continue;
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}
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if (x < 0 || y < 0 || x >= s.width || y >= s.height || r[(y * s.width + x) * 4 + 3] <= 128) {
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normal += Vector2(x - i, y - j).normalized();
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}
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}
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}
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normal.normalize();
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valid_normals.write[vpc] = normal;
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}
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if (capture_colors) {
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valid_colors.write[vpc * 4 + 0] = r[(j * s.width + i) * 4 + 0];
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valid_colors.write[vpc * 4 + 1] = r[(j * s.width + i) * 4 + 1];
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valid_colors.write[vpc * 4 + 2] = r[(j * s.width + i) * 4 + 2];
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valid_colors.write[vpc * 4 + 3] = r[(j * s.width + i) * 4 + 3];
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}
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vpc++;
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}
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}
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}
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}
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}
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}
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valid_positions.resize(vpc);
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if (valid_normals.size()) {
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valid_normals.resize(vpc);
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}
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ERR_FAIL_COND_MSG(valid_positions.is_empty(), "No pixels with transparency > 128 in image...");
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if (capture_colors) {
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PackedColorArray pca;
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pca.resize(vpc);
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Color *pcaw = pca.ptrw();
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for (int i = 0; i < vpc; i += 1) {
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Color color;
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color.r = valid_colors[i * 4 + 0] / 255.0f;
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color.g = valid_colors[i * 4 + 1] / 255.0f;
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color.b = valid_colors[i * 4 + 2] / 255.0f;
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color.a = valid_colors[i * 4 + 3] / 255.0f;
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pcaw[i] = color;
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}
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particles->set_emission_colors(pca);
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}
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if (valid_normals.size()) {
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particles->set_emission_shape(CPUParticles2D::EMISSION_SHAPE_DIRECTED_POINTS);
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PackedVector2Array norms;
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norms.resize(valid_normals.size());
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Vector2 *normsw = norms.ptrw();
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for (int i = 0; i < valid_normals.size(); i += 1) {
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normsw[i] = valid_normals[i];
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}
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particles->set_emission_normals(norms);
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} else {
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particles->set_emission_shape(CPUParticles2D::EMISSION_SHAPE_POINTS);
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}
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{
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Vector2 offset;
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if (emission_mask_centered->is_pressed()) {
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offset = Vector2(-s.width * 0.5, -s.height * 0.5);
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}
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PackedVector2Array points;
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points.resize(valid_positions.size());
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Vector2 *pointsw = points.ptrw();
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for (int i = 0; i < valid_positions.size(); i += 1) {
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pointsw[i] = valid_positions[i] + offset;
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}
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particles->set_emission_points(points);
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}
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}
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void CPUParticles2DEditorPlugin::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_ENTER_TREE: {
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menu->get_popup()->connect("id_pressed", callable_mp(this, &CPUParticles2DEditorPlugin::_menu_callback));
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menu->set_icon(file->get_editor_theme_icon(SNAME("CPUParticles2D")));
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file->connect("file_selected", callable_mp(this, &CPUParticles2DEditorPlugin::_file_selected));
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} break;
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}
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}
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void CPUParticles2DEditorPlugin::_bind_methods() {
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}
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CPUParticles2DEditorPlugin::CPUParticles2DEditorPlugin() {
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particles = nullptr;
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toolbar = memnew(HBoxContainer);
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add_control_to_container(CONTAINER_CANVAS_EDITOR_MENU, toolbar);
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toolbar->hide();
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menu = memnew(MenuButton);
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menu->get_popup()->add_shortcut(ED_GET_SHORTCUT("particles/restart_emission"), MENU_RESTART);
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menu->get_popup()->add_item(TTR("Load Emission Mask"), MENU_LOAD_EMISSION_MASK);
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menu->get_popup()->add_item(TTR("Convert to GPUParticles2D"), MENU_CONVERT_TO_GPU_PARTICLES);
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menu->set_text(TTR("CPUParticles2D"));
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menu->set_switch_on_hover(true);
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toolbar->add_child(menu);
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file = memnew(EditorFileDialog);
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List<String> ext;
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ImageLoader::get_recognized_extensions(&ext);
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for (const String &E : ext) {
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file->add_filter("*." + E, E.to_upper());
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}
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file->set_file_mode(EditorFileDialog::FILE_MODE_OPEN_FILE);
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toolbar->add_child(file);
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emission_mask = memnew(ConfirmationDialog);
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emission_mask->set_title(TTR("Load Emission Mask"));
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VBoxContainer *emvb = memnew(VBoxContainer);
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emission_mask->add_child(emvb);
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emission_mask_mode = memnew(OptionButton);
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emvb->add_margin_child(TTR("Emission Mask"), emission_mask_mode);
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emission_mask_mode->add_item(TTR("Solid Pixels"), EMISSION_MODE_SOLID);
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emission_mask_mode->add_item(TTR("Border Pixels"), EMISSION_MODE_BORDER);
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emission_mask_mode->add_item(TTR("Directed Border Pixels"), EMISSION_MODE_BORDER_DIRECTED);
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VBoxContainer *optionsvb = memnew(VBoxContainer);
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emvb->add_margin_child(TTR("Options"), optionsvb);
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emission_mask_centered = memnew(CheckBox);
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emission_mask_centered->set_text(TTR("Centered"));
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optionsvb->add_child(emission_mask_centered);
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emission_colors = memnew(CheckBox);
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emission_colors->set_text(TTR("Capture Colors from Pixel"));
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optionsvb->add_child(emission_colors);
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toolbar->add_child(emission_mask);
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emission_mask->connect("confirmed", callable_mp(this, &CPUParticles2DEditorPlugin::_generate_emission_mask));
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}
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CPUParticles2DEditorPlugin::~CPUParticles2DEditorPlugin() {
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}
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