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particles_storage.cpp
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/**************************************************************************/
/* particles_storage.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 "particles_storage.h"
#include "servers/rendering/renderer_rd/renderer_compositor_rd.h"
#include "servers/rendering/rendering_server_globals.h"
#include "texture_storage.h"
using namespace RendererRD;
ParticlesStorage *ParticlesStorage::singleton = nullptr;
ParticlesStorage *ParticlesStorage::get_singleton() {
return singleton;
}
ParticlesStorage::ParticlesStorage() {
singleton = this;
MaterialStorage *material_storage = MaterialStorage::get_singleton();
/* Effects */
sort_effects = memnew(SortEffects);
/* Particles */
{
String defines = "#define SAMPLERS_BINDING_FIRST_INDEX " + itos(SAMPLERS_BINDING_FIRST_INDEX) + "\n";
// Initialize particles
Vector<String> particles_modes;
particles_modes.push_back("");
particles_shader.shader.initialize(particles_modes, defines);
}
MaterialStorage::get_singleton()->shader_set_data_request_function(MaterialStorage::SHADER_TYPE_PARTICLES, _create_particles_shader_funcs);
MaterialStorage::get_singleton()->material_set_data_request_function(MaterialStorage::SHADER_TYPE_PARTICLES, _create_particles_material_funcs);
{
ShaderCompiler::DefaultIdentifierActions actions;
actions.renames["COLOR"] = "PARTICLE.color";
actions.renames["VELOCITY"] = "PARTICLE.velocity";
//actions.renames["MASS"] = "mass"; ?
actions.renames["ACTIVE"] = "particle_active";
actions.renames["RESTART"] = "restart";
actions.renames["CUSTOM"] = "PARTICLE.custom";
actions.renames["AMOUNT_RATIO"] = "FRAME.amount_ratio";
for (int i = 0; i < ParticlesShader::MAX_USERDATAS; i++) {
String udname = "USERDATA" + itos(i + 1);
actions.renames[udname] = "PARTICLE.userdata" + itos(i + 1);
actions.usage_defines[udname] = "#define USERDATA" + itos(i + 1) + "_USED\n";
}
actions.renames["TRANSFORM"] = "PARTICLE.xform";
actions.renames["TIME"] = "frame_history.data[0].time";
actions.renames["PI"] = _MKSTR(Math_PI);
actions.renames["TAU"] = _MKSTR(Math_TAU);
actions.renames["E"] = _MKSTR(Math_E);
actions.renames["LIFETIME"] = "params.lifetime";
actions.renames["DELTA"] = "local_delta";
actions.renames["NUMBER"] = "particle_number";
actions.renames["INDEX"] = "index";
//actions.renames["GRAVITY"] = "current_gravity";
actions.renames["EMISSION_TRANSFORM"] = "FRAME.emission_transform";
actions.renames["EMITTER_VELOCITY"] = "FRAME.emitter_velocity";
actions.renames["INTERPOLATE_TO_END"] = "FRAME.interp_to_end";
actions.renames["RANDOM_SEED"] = "FRAME.random_seed";
actions.renames["FLAG_EMIT_POSITION"] = "EMISSION_FLAG_HAS_POSITION";
actions.renames["FLAG_EMIT_ROT_SCALE"] = "EMISSION_FLAG_HAS_ROTATION_SCALE";
actions.renames["FLAG_EMIT_VELOCITY"] = "EMISSION_FLAG_HAS_VELOCITY";
actions.renames["FLAG_EMIT_COLOR"] = "EMISSION_FLAG_HAS_COLOR";
actions.renames["FLAG_EMIT_CUSTOM"] = "EMISSION_FLAG_HAS_CUSTOM";
actions.renames["RESTART_POSITION"] = "restart_position";
actions.renames["RESTART_ROT_SCALE"] = "restart_rotation_scale";
actions.renames["RESTART_VELOCITY"] = "restart_velocity";
actions.renames["RESTART_COLOR"] = "restart_color";
actions.renames["RESTART_CUSTOM"] = "restart_custom";
actions.renames["emit_subparticle"] = "emit_subparticle";
actions.renames["COLLIDED"] = "collided";
actions.renames["COLLISION_NORMAL"] = "collision_normal";
actions.renames["COLLISION_DEPTH"] = "collision_depth";
actions.renames["ATTRACTOR_FORCE"] = "attractor_force";
actions.render_mode_defines["disable_force"] = "#define DISABLE_FORCE\n";
actions.render_mode_defines["disable_velocity"] = "#define DISABLE_VELOCITY\n";
actions.render_mode_defines["keep_data"] = "#define ENABLE_KEEP_DATA\n";
actions.render_mode_defines["collision_use_scale"] = "#define USE_COLLISION_SCALE\n";
actions.base_texture_binding_index = 1;
actions.texture_layout_set = 3;
actions.base_uniform_string = "material.";
actions.base_varying_index = 10;
actions.default_filter = ShaderLanguage::FILTER_LINEAR_MIPMAP;
actions.default_repeat = ShaderLanguage::REPEAT_ENABLE;
actions.global_buffer_array_variable = "global_shader_uniforms.data";
particles_shader.compiler.initialize(actions);
}
{
// default material and shader for particles shader
particles_shader.default_shader = material_storage->shader_allocate();
material_storage->shader_initialize(particles_shader.default_shader);
material_storage->shader_set_code(particles_shader.default_shader, R"(
// Default particles shader.
shader_type particles;
void process() {
COLOR = vec4(1.0);
}
)");
particles_shader.default_material = material_storage->material_allocate();
material_storage->material_initialize(particles_shader.default_material);
material_storage->material_set_shader(particles_shader.default_material, particles_shader.default_shader);
ParticleProcessMaterialData *md = static_cast<ParticleProcessMaterialData *>(material_storage->material_get_data(particles_shader.default_material, MaterialStorage::SHADER_TYPE_PARTICLES));
particles_shader.default_shader_rd = particles_shader.shader.version_get_shader(md->shader_data->version, 0);
Vector<RD::Uniform> uniforms;
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.binding = 2;
u.append_id(material_storage->global_shader_uniforms_get_storage_buffer());
uniforms.push_back(u);
}
material_storage->samplers_rd_get_default().append_uniforms(uniforms, SAMPLERS_BINDING_FIRST_INDEX);
particles_shader.base_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, particles_shader.default_shader_rd, BASE_UNIFORM_SET);
}
{
Vector<String> copy_modes;
for (int i = 0; i <= ParticlesShader::MAX_USERDATAS; i++) {
if (i == 0) {
copy_modes.push_back("\n#define MODE_FILL_INSTANCES\n");
copy_modes.push_back("\n#define MODE_FILL_SORT_BUFFER\n#define USE_SORT_BUFFER\n");
copy_modes.push_back("\n#define MODE_FILL_INSTANCES\n#define USE_SORT_BUFFER\n");
} else {
copy_modes.push_back("\n#define MODE_FILL_INSTANCES\n#define USERDATA_COUNT " + itos(i) + "\n");
copy_modes.push_back("\n#define MODE_FILL_SORT_BUFFER\n#define USE_SORT_BUFFER\n#define USERDATA_COUNT " + itos(i) + "\n");
copy_modes.push_back("\n#define MODE_FILL_INSTANCES\n#define USE_SORT_BUFFER\n#define USERDATA_COUNT " + itos(i) + "\n");
}
}
particles_shader.copy_shader.initialize(copy_modes);
particles_shader.copy_shader_version = particles_shader.copy_shader.version_create();
for (int i = 0; i <= ParticlesShader::MAX_USERDATAS; i++) {
for (int j = 0; j < ParticlesShader::COPY_MODE_MAX; j++) {
particles_shader.copy_pipelines[i * ParticlesShader::COPY_MODE_MAX + j] = RD::get_singleton()->compute_pipeline_create(particles_shader.copy_shader.version_get_shader(particles_shader.copy_shader_version, i * ParticlesShader::COPY_MODE_MAX + j));
}
}
}
}
ParticlesStorage::~ParticlesStorage() {
MaterialStorage *material_storage = MaterialStorage::get_singleton();
particles_shader.copy_shader.version_free(particles_shader.copy_shader_version);
material_storage->material_free(particles_shader.default_material);
material_storage->shader_free(particles_shader.default_shader);
if (sort_effects) {
memdelete(sort_effects);
sort_effects = nullptr;
}
singleton = nullptr;
}
bool ParticlesStorage::free(RID p_rid) {
if (owns_particles(p_rid)) {
particles_free(p_rid);
return true;
} else if (owns_particles_collision(p_rid)) {
particles_collision_free(p_rid);
return true;
} else if (owns_particles_collision_instance(p_rid)) {
particles_collision_instance_free(p_rid);
return true;
}
return false;
}
/* PARTICLES */
RID ParticlesStorage::particles_allocate() {
return particles_owner.allocate_rid();
}
void ParticlesStorage::particles_initialize(RID p_rid) {
particles_owner.initialize_rid(p_rid);
}
void ParticlesStorage::particles_free(RID p_rid) {
Particles *particles = particles_owner.get_or_null(p_rid);
particles->dependency.deleted_notify(p_rid);
particles->update_list.remove_from_list();
_particles_free_data(particles);
particles_owner.free(p_rid);
}
void ParticlesStorage::particles_set_mode(RID p_particles, RS::ParticlesMode p_mode) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
if (particles->mode == p_mode) {
return;
}
_particles_free_data(particles);
particles->mode = p_mode;
}
void ParticlesStorage::particles_set_emitting(RID p_particles, bool p_emitting) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->emitting = p_emitting;
}
bool ParticlesStorage::particles_get_emitting(RID p_particles) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL_V(particles, false);
return particles->emitting;
}
void ParticlesStorage::_particles_free_data(Particles *particles) {
if (particles->particle_buffer.is_valid()) {
RD::get_singleton()->free(particles->particle_buffer);
particles->particle_buffer = RID();
RD::get_singleton()->free(particles->particle_instance_buffer);
particles->particle_instance_buffer = RID();
}
particles->userdata_count = 0;
if (particles->frame_params_buffer.is_valid()) {
RD::get_singleton()->free(particles->frame_params_buffer);
particles->frame_params_buffer = RID();
}
particles->particles_transforms_buffer_uniform_set = RID();
if (RD::get_singleton()->uniform_set_is_valid(particles->trail_bind_pose_uniform_set)) {
RD::get_singleton()->free(particles->trail_bind_pose_uniform_set);
}
particles->trail_bind_pose_uniform_set = RID();
if (particles->trail_bind_pose_buffer.is_valid()) {
RD::get_singleton()->free(particles->trail_bind_pose_buffer);
particles->trail_bind_pose_buffer = RID();
}
if (RD::get_singleton()->uniform_set_is_valid(particles->collision_textures_uniform_set)) {
RD::get_singleton()->free(particles->collision_textures_uniform_set);
}
particles->collision_textures_uniform_set = RID();
if (particles->particles_sort_buffer.is_valid()) {
RD::get_singleton()->free(particles->particles_sort_buffer);
particles->particles_sort_buffer = RID();
particles->particles_sort_uniform_set = RID();
}
if (particles->emission_buffer != nullptr) {
particles->emission_buffer = nullptr;
particles->emission_buffer_data.clear();
RD::get_singleton()->free(particles->emission_storage_buffer);
particles->emission_storage_buffer = RID();
}
if (particles->unused_emission_storage_buffer.is_valid()) {
RD::get_singleton()->free(particles->unused_emission_storage_buffer);
particles->unused_emission_storage_buffer = RID();
}
if (particles->unused_trail_storage_buffer.is_valid()) {
RD::get_singleton()->free(particles->unused_trail_storage_buffer);
particles->unused_trail_storage_buffer = RID();
}
if (RD::get_singleton()->uniform_set_is_valid(particles->particles_material_uniform_set)) {
//will need to be re-created
RD::get_singleton()->free(particles->particles_material_uniform_set);
}
particles->particles_material_uniform_set = RID();
}
void ParticlesStorage::particles_set_amount(RID p_particles, int p_amount) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
if (particles->amount == p_amount) {
return;
}
_particles_free_data(particles);
particles->amount = p_amount;
particles->prev_ticks = 0;
particles->phase = 0;
particles->prev_phase = 0;
particles->clear = true;
particles->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_PARTICLES);
}
void ParticlesStorage::particles_set_amount_ratio(RID p_particles, float p_amount_ratio) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->amount_ratio = p_amount_ratio;
}
void ParticlesStorage::particles_set_lifetime(RID p_particles, double p_lifetime) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->lifetime = p_lifetime;
}
void ParticlesStorage::particles_set_one_shot(RID p_particles, bool p_one_shot) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->one_shot = p_one_shot;
}
void ParticlesStorage::particles_set_pre_process_time(RID p_particles, double p_time) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->pre_process_time = p_time;
}
void ParticlesStorage::particles_set_explosiveness_ratio(RID p_particles, real_t p_ratio) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->explosiveness = p_ratio;
}
void ParticlesStorage::particles_set_randomness_ratio(RID p_particles, real_t p_ratio) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->randomness = p_ratio;
}
void ParticlesStorage::particles_set_custom_aabb(RID p_particles, const AABB &p_aabb) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->custom_aabb = p_aabb;
particles->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_AABB);
}
void ParticlesStorage::particles_set_speed_scale(RID p_particles, double p_scale) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->speed_scale = p_scale;
}
void ParticlesStorage::particles_set_use_local_coordinates(RID p_particles, bool p_enable) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->use_local_coords = p_enable;
particles->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_PARTICLES);
}
void ParticlesStorage::particles_set_fixed_fps(RID p_particles, int p_fps) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->fixed_fps = p_fps;
_particles_free_data(particles);
particles->prev_ticks = 0;
particles->phase = 0;
particles->prev_phase = 0;
particles->clear = true;
particles->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_PARTICLES);
}
void ParticlesStorage::particles_set_interpolate(RID p_particles, bool p_enable) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->interpolate = p_enable;
}
void ParticlesStorage::particles_set_fractional_delta(RID p_particles, bool p_enable) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->fractional_delta = p_enable;
}
void ParticlesStorage::particles_set_trails(RID p_particles, bool p_enable, double p_length) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
ERR_FAIL_COND(p_length < 0.01);
p_length = MIN(10.0, p_length);
particles->trails_enabled = p_enable;
particles->trail_lifetime = p_length;
_particles_free_data(particles);
particles->prev_ticks = 0;
particles->phase = 0;
particles->prev_phase = 0;
particles->clear = true;
particles->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_PARTICLES);
}
void ParticlesStorage::particles_set_trail_bind_poses(RID p_particles, const Vector<Transform3D> &p_bind_poses) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
if (particles->trail_bind_pose_buffer.is_valid() && particles->trail_bind_poses.size() != p_bind_poses.size()) {
_particles_free_data(particles);
particles->prev_ticks = 0;
particles->phase = 0;
particles->prev_phase = 0;
particles->clear = true;
}
particles->trail_bind_poses = p_bind_poses;
particles->trail_bind_poses_dirty = true;
particles->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_PARTICLES);
}
void ParticlesStorage::particles_set_collision_base_size(RID p_particles, real_t p_size) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->collision_base_size = p_size;
}
void ParticlesStorage::particles_set_transform_align(RID p_particles, RS::ParticlesTransformAlign p_transform_align) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->transform_align = p_transform_align;
}
void ParticlesStorage::particles_set_process_material(RID p_particles, RID p_material) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->process_material = p_material;
particles->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_PARTICLES); //the instance buffer may have changed
}
RID ParticlesStorage::particles_get_process_material(RID p_particles) const {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL_V(particles, RID());
return particles->process_material;
}
void ParticlesStorage::particles_set_draw_order(RID p_particles, RS::ParticlesDrawOrder p_order) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->draw_order = p_order;
}
void ParticlesStorage::particles_set_draw_passes(RID p_particles, int p_passes) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->draw_passes.resize(p_passes);
}
void ParticlesStorage::particles_set_draw_pass_mesh(RID p_particles, int p_pass, RID p_mesh) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
ERR_FAIL_INDEX(p_pass, particles->draw_passes.size());
particles->draw_passes.write[p_pass] = p_mesh;
}
void ParticlesStorage::particles_restart(RID p_particles) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->restart_request = true;
}
void ParticlesStorage::_particles_allocate_emission_buffer(Particles *particles) {
ERR_FAIL_COND(particles->emission_buffer != nullptr);
particles->emission_buffer_data.resize(sizeof(ParticleEmissionBuffer::Data) * particles->amount + sizeof(uint32_t) * 4);
memset(particles->emission_buffer_data.ptrw(), 0, particles->emission_buffer_data.size());
particles->emission_buffer = reinterpret_cast<ParticleEmissionBuffer *>(particles->emission_buffer_data.ptrw());
particles->emission_buffer->particle_max = particles->amount;
particles->emission_storage_buffer = RD::get_singleton()->storage_buffer_create(particles->emission_buffer_data.size(), particles->emission_buffer_data);
if (RD::get_singleton()->uniform_set_is_valid(particles->particles_material_uniform_set)) {
//will need to be re-created
RD::get_singleton()->free(particles->particles_material_uniform_set);
particles->particles_material_uniform_set = RID();
}
}
void ParticlesStorage::_particles_ensure_unused_emission_buffer(Particles *particles) {
if (particles->unused_emission_storage_buffer.is_null()) {
particles->unused_emission_storage_buffer = RD::get_singleton()->storage_buffer_create(sizeof(uint32_t) * 4);
}
}
void ParticlesStorage::_particles_ensure_unused_trail_buffer(Particles *particles) {
if (particles->unused_trail_storage_buffer.is_null()) {
particles->unused_trail_storage_buffer = RD::get_singleton()->storage_buffer_create(sizeof(uint32_t) * 4);
}
}
void ParticlesStorage::particles_set_subemitter(RID p_particles, RID p_subemitter_particles) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
ERR_FAIL_COND(p_particles == p_subemitter_particles);
particles->sub_emitter = p_subemitter_particles;
if (RD::get_singleton()->uniform_set_is_valid(particles->particles_material_uniform_set)) {
RD::get_singleton()->free(particles->particles_material_uniform_set);
particles->particles_material_uniform_set = RID(); //clear and force to re create sub emitting
}
}
void ParticlesStorage::particles_emit(RID p_particles, const Transform3D &p_transform, const Vector3 &p_velocity, const Color &p_color, const Color &p_custom, uint32_t p_emit_flags) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
ERR_FAIL_COND(particles->amount == 0);
if (particles->emitting) {
particles->clear = true;
particles->emitting = false;
}
if (particles->emission_buffer == nullptr) {
_particles_allocate_emission_buffer(particles);
}
particles->inactive = false;
particles->inactive_time = 0;
int32_t idx = particles->emission_buffer->particle_count;
if (idx < particles->emission_buffer->particle_max) {
RendererRD::MaterialStorage::store_transform(p_transform, particles->emission_buffer->data[idx].xform);
particles->emission_buffer->data[idx].velocity[0] = p_velocity.x;
particles->emission_buffer->data[idx].velocity[1] = p_velocity.y;
particles->emission_buffer->data[idx].velocity[2] = p_velocity.z;
particles->emission_buffer->data[idx].custom[0] = p_custom.r;
particles->emission_buffer->data[idx].custom[1] = p_custom.g;
particles->emission_buffer->data[idx].custom[2] = p_custom.b;
particles->emission_buffer->data[idx].custom[3] = p_custom.a;
particles->emission_buffer->data[idx].color[0] = p_color.r;
particles->emission_buffer->data[idx].color[1] = p_color.g;
particles->emission_buffer->data[idx].color[2] = p_color.b;
particles->emission_buffer->data[idx].color[3] = p_color.a;
particles->emission_buffer->data[idx].flags = p_emit_flags;
particles->emission_buffer->particle_count++;
}
}
void ParticlesStorage::particles_request_process(RID p_particles) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
if (!particles->dirty) {
particles->dirty = true;
if (!particles->update_list.in_list()) {
particle_update_list.add(&particles->update_list);
}
}
}
AABB ParticlesStorage::particles_get_current_aabb(RID p_particles) {
const Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL_V(particles, AABB());
int total_amount = particles->amount;
if (particles->trails_enabled && particles->trail_bind_poses.size() > 1) {
total_amount *= particles->trail_bind_poses.size();
}
uint32_t particle_data_size = sizeof(ParticleData) + sizeof(float) * 4 * particles->userdata_count;
Vector<uint8_t> buffer = RD::get_singleton()->buffer_get_data(particles->particle_buffer);
ERR_FAIL_COND_V(buffer.size() != (int)(total_amount * particle_data_size), AABB());
Transform3D inv = particles->emission_transform.affine_inverse();
AABB aabb;
if (buffer.size()) {
bool first = true;
const uint8_t *data_ptr = (const uint8_t *)buffer.ptr();
for (int i = 0; i < total_amount; i++) {
const ParticleData &particle_data = *(const ParticleData *)&data_ptr[particle_data_size * i];
if (particle_data.active) {
Vector3 pos = Vector3(particle_data.xform[12], particle_data.xform[13], particle_data.xform[14]);
if (!particles->use_local_coords) {
pos = inv.xform(pos);
}
if (first) {
aabb.position = pos;
first = false;
} else {
aabb.expand_to(pos);
}
}
}
}
float longest_axis_size = 0;
for (int i = 0; i < particles->draw_passes.size(); i++) {
if (particles->draw_passes[i].is_valid()) {
AABB maabb = MeshStorage::get_singleton()->mesh_get_aabb(particles->draw_passes[i], RID());
longest_axis_size = MAX(maabb.get_longest_axis_size(), longest_axis_size);
}
}
aabb.grow_by(longest_axis_size);
return aabb;
}
AABB ParticlesStorage::particles_get_aabb(RID p_particles) const {
const Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL_V(particles, AABB());
return particles->custom_aabb;
}
void ParticlesStorage::particles_set_emission_transform(RID p_particles, const Transform3D &p_transform) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->emission_transform = p_transform;
}
void ParticlesStorage::particles_set_emitter_velocity(RID p_particles, const Vector3 &p_velocity) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->emitter_velocity = p_velocity;
}
void ParticlesStorage::particles_set_interp_to_end(RID p_particles, float p_interp) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->interp_to_end = p_interp;
}
int ParticlesStorage::particles_get_draw_passes(RID p_particles) const {
const Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL_V(particles, 0);
return particles->draw_passes.size();
}
RID ParticlesStorage::particles_get_draw_pass_mesh(RID p_particles, int p_pass) const {
const Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL_V(particles, RID());
ERR_FAIL_INDEX_V(p_pass, particles->draw_passes.size(), RID());
return particles->draw_passes[p_pass];
}
void ParticlesStorage::particles_update_dependency(RID p_particles, DependencyTracker *p_instance) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
p_instance->update_dependency(&particles->dependency);
}
void ParticlesStorage::particles_get_instance_buffer_motion_vectors_offsets(RID p_particles, uint32_t &r_current_offset, uint32_t &r_prev_offset) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
r_current_offset = particles->instance_motion_vectors_current_offset;
r_prev_offset = particles->instance_motion_vectors_previous_offset;
}
void ParticlesStorage::particles_add_collision(RID p_particles, RID p_particles_collision_instance) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->collisions.insert(p_particles_collision_instance);
}
void ParticlesStorage::particles_remove_collision(RID p_particles, RID p_particles_collision_instance) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->collisions.erase(p_particles_collision_instance);
}
void ParticlesStorage::particles_set_canvas_sdf_collision(RID p_particles, bool p_enable, const Transform2D &p_xform, const Rect2 &p_to_screen, RID p_texture) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->has_sdf_collision = p_enable;
particles->sdf_collision_transform = p_xform;
particles->sdf_collision_to_screen = p_to_screen;
particles->sdf_collision_texture = p_texture;
}
void ParticlesStorage::_particles_process(Particles *p_particles, double p_delta) {
TextureStorage *texture_storage = TextureStorage::get_singleton();
MaterialStorage *material_storage = MaterialStorage::get_singleton();
if (p_particles->particles_material_uniform_set.is_null() || !RD::get_singleton()->uniform_set_is_valid(p_particles->particles_material_uniform_set)) {
Vector<RD::Uniform> uniforms;
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.binding = 0;
u.append_id(p_particles->frame_params_buffer);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.binding = 1;
u.append_id(p_particles->particle_buffer);
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.binding = 2;
if (p_particles->emission_storage_buffer.is_valid()) {
u.append_id(p_particles->emission_storage_buffer);
} else {
_particles_ensure_unused_emission_buffer(p_particles);
u.append_id(p_particles->unused_emission_storage_buffer);
}
uniforms.push_back(u);
}
{
RD::Uniform u;
u.uniform_type = RD::UNIFORM_TYPE_STORAGE_BUFFER;
u.binding = 3;
Particles *sub_emitter = particles_owner.get_or_null(p_particles->sub_emitter);
if (sub_emitter) {
if (sub_emitter->emission_buffer == nullptr) { //no emission buffer, allocate emission buffer
_particles_allocate_emission_buffer(sub_emitter);
}
u.append_id(sub_emitter->emission_storage_buffer);
} else {
_particles_ensure_unused_emission_buffer(p_particles);
u.append_id(p_particles->unused_emission_storage_buffer);
}
uniforms.push_back(u);
}
p_particles->particles_material_uniform_set = RD::get_singleton()->uniform_set_create(uniforms, particles_shader.default_shader_rd, 1);
}
double new_phase = Math::fmod((double)p_particles->phase + (p_delta / p_particles->lifetime) * p_particles->speed_scale, 1.0);
//move back history (if there is any)
for (uint32_t i = p_particles->frame_history.size() - 1; i > 0; i--) {
p_particles->frame_history[i] = p_particles->frame_history[i - 1];
}
//update current frame
ParticlesFrameParams &frame_params = p_particles->frame_history[0];
if (p_particles->clear) {
p_particles->cycle_number = 0;
p_particles->random_seed = Math::rand();
} else if (new_phase < p_particles->phase) {
if (p_particles->one_shot) {
p_particles->emitting = false;
}
p_particles->cycle_number++;
}
frame_params.emitting = p_particles->emitting;
frame_params.system_phase = new_phase;
frame_params.prev_system_phase = p_particles->phase;
p_particles->phase = new_phase;
frame_params.time = RendererCompositorRD::get_singleton()->get_total_time();
frame_params.delta = p_delta * p_particles->speed_scale;
frame_params.random_seed = p_particles->random_seed;
frame_params.explosiveness = p_particles->explosiveness;
frame_params.randomness = p_particles->randomness;
if (p_particles->use_local_coords) {
RendererRD::MaterialStorage::store_transform(Transform3D(), frame_params.emission_transform);
} else {
RendererRD::MaterialStorage::store_transform(p_particles->emission_transform, frame_params.emission_transform);
}
frame_params.cycle = p_particles->cycle_number;
frame_params.frame = p_particles->frame_counter++;
frame_params.amount_ratio = p_particles->amount_ratio;
frame_params.pad1 = 0;
frame_params.pad2 = 0;
frame_params.emitter_velocity[0] = p_particles->emitter_velocity.x;
frame_params.emitter_velocity[1] = p_particles->emitter_velocity.y;
frame_params.emitter_velocity[2] = p_particles->emitter_velocity.z;
frame_params.interp_to_end = p_particles->interp_to_end;
{ //collision and attractors
frame_params.collider_count = 0;
frame_params.attractor_count = 0;
frame_params.particle_size = p_particles->collision_base_size;
RID collision_3d_textures[ParticlesFrameParams::MAX_3D_TEXTURES];
RID collision_heightmap_texture;
Transform3D to_particles;
if (p_particles->use_local_coords) {
to_particles = p_particles->emission_transform.affine_inverse();
}
if (p_particles->has_sdf_collision && RD::get_singleton()->texture_is_valid(p_particles->sdf_collision_texture)) {
//2D collision
Transform2D xform = p_particles->sdf_collision_transform; //will use dotproduct manually so invert beforehand
if (!p_particles->use_local_coords) {
Transform2D emission;
emission.columns[0] = Vector2(p_particles->emission_transform.basis.get_column(0).x, p_particles->emission_transform.basis.get_column(0).y);
emission.columns[1] = Vector2(p_particles->emission_transform.basis.get_column(1).x, p_particles->emission_transform.basis.get_column(1).y);
emission.set_origin(Vector2(p_particles->emission_transform.origin.x, p_particles->emission_transform.origin.y));
xform = xform * emission.affine_inverse();
}
Transform2D revert = xform.affine_inverse();
frame_params.collider_count = 1;
frame_params.colliders[0].transform[0] = xform.columns[0][0];
frame_params.colliders[0].transform[1] = xform.columns[0][1];
frame_params.colliders[0].transform[2] = 0;
frame_params.colliders[0].transform[3] = xform.columns[2][0];
frame_params.colliders[0].transform[4] = xform.columns[1][0];
frame_params.colliders[0].transform[5] = xform.columns[1][1];
frame_params.colliders[0].transform[6] = 0;
frame_params.colliders[0].transform[7] = xform.columns[2][1];
frame_params.colliders[0].transform[8] = revert.columns[0][0];
frame_params.colliders[0].transform[9] = revert.columns[0][1];
frame_params.colliders[0].transform[10] = 0;
frame_params.colliders[0].transform[11] = revert.columns[2][0];
frame_params.colliders[0].transform[12] = revert.columns[1][0];
frame_params.colliders[0].transform[13] = revert.columns[1][1];
frame_params.colliders[0].transform[14] = 0;
frame_params.colliders[0].transform[15] = revert.columns[2][1];
frame_params.colliders[0].extents[0] = p_particles->sdf_collision_to_screen.size.x;
frame_params.colliders[0].extents[1] = p_particles->sdf_collision_to_screen.size.y;
frame_params.colliders[0].extents[2] = p_particles->sdf_collision_to_screen.position.x;
frame_params.colliders[0].scale = p_particles->sdf_collision_to_screen.position.y;
frame_params.colliders[0].texture_index = 0;
frame_params.colliders[0].type = ParticlesFrameParams::COLLISION_TYPE_2D_SDF;
collision_heightmap_texture = p_particles->sdf_collision_texture;
//replace in all other history frames where used because parameters are no longer valid if screen moves
for (ParticlesFrameParams ¶ms : p_particles->frame_history) {
if (params.collider_count > 0 && params.colliders[0].type == ParticlesFrameParams::COLLISION_TYPE_2D_SDF) {
params.colliders[0] = frame_params.colliders[0];
}
}
}
uint32_t collision_3d_textures_used = 0;
for (const RID &E : p_particles->collisions) {
ParticlesCollisionInstance *pci = particles_collision_instance_owner.get_or_null(E);
if (!pci || !pci->active) {
continue;
}
ParticlesCollision *pc = particles_collision_owner.get_or_null(pci->collision);
ERR_CONTINUE(!pc);
Transform3D to_collider = pci->transform;
if (p_particles->use_local_coords) {
to_collider = to_particles * to_collider;
}
Vector3 scale = to_collider.basis.get_scale();
to_collider.basis.orthonormalize();
if (pc->type <= RS::PARTICLES_COLLISION_TYPE_VECTOR_FIELD_ATTRACT) {
//attractor
if (frame_params.attractor_count >= ParticlesFrameParams::MAX_ATTRACTORS) {
continue;
}
ParticlesFrameParams::Attractor &attr = frame_params.attractors[frame_params.attractor_count];
RendererRD::MaterialStorage::store_transform(to_collider, attr.transform);
attr.strength = pc->attractor_strength;
attr.attenuation = pc->attractor_attenuation;
attr.directionality = pc->attractor_directionality;
switch (pc->type) {
case RS::PARTICLES_COLLISION_TYPE_SPHERE_ATTRACT: {
attr.type = ParticlesFrameParams::ATTRACTOR_TYPE_SPHERE;
float radius = pc->radius;
radius *= (scale.x + scale.y + scale.z) / 3.0;
attr.extents[0] = radius;
attr.extents[1] = radius;
attr.extents[2] = radius;
} break;
case RS::PARTICLES_COLLISION_TYPE_BOX_ATTRACT: {
attr.type = ParticlesFrameParams::ATTRACTOR_TYPE_BOX;
Vector3 extents = pc->extents * scale;
attr.extents[0] = extents.x;
attr.extents[1] = extents.y;
attr.extents[2] = extents.z;
} break;
case RS::PARTICLES_COLLISION_TYPE_VECTOR_FIELD_ATTRACT: {
if (collision_3d_textures_used >= ParticlesFrameParams::MAX_3D_TEXTURES) {
continue;
}
attr.type = ParticlesFrameParams::ATTRACTOR_TYPE_VECTOR_FIELD;
Vector3 extents = pc->extents * scale;
attr.extents[0] = extents.x;
attr.extents[1] = extents.y;
attr.extents[2] = extents.z;
attr.texture_index = collision_3d_textures_used;
collision_3d_textures[collision_3d_textures_used] = pc->field_texture;
collision_3d_textures_used++;
} break;
default: {
}
}
frame_params.attractor_count++;
} else {
//collider
if (frame_params.collider_count >= ParticlesFrameParams::MAX_COLLIDERS) {
continue;
}
ParticlesFrameParams::Collider &col = frame_params.colliders[frame_params.collider_count];
RendererRD::MaterialStorage::store_transform(to_collider, col.transform);
switch (pc->type) {
case RS::PARTICLES_COLLISION_TYPE_SPHERE_COLLIDE: {
col.type = ParticlesFrameParams::COLLISION_TYPE_SPHERE;
float radius = pc->radius;
radius *= (scale.x + scale.y + scale.z) / 3.0;
col.extents[0] = radius;
col.extents[1] = radius;
col.extents[2] = radius;
} break;
case RS::PARTICLES_COLLISION_TYPE_BOX_COLLIDE: {
col.type = ParticlesFrameParams::COLLISION_TYPE_BOX;
Vector3 extents = pc->extents * scale;
col.extents[0] = extents.x;