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Diffstat (limited to 'scene/3d/cpu_particles_3d.cpp')
| -rw-r--r-- | scene/3d/cpu_particles_3d.cpp | 1546 |
1 files changed, 1546 insertions, 0 deletions
diff --git a/scene/3d/cpu_particles_3d.cpp b/scene/3d/cpu_particles_3d.cpp new file mode 100644 index 0000000000..12c105b0f4 --- /dev/null +++ b/scene/3d/cpu_particles_3d.cpp @@ -0,0 +1,1546 @@ +/*************************************************************************/ +/* cpu_particles_3d.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2020 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 "cpu_particles_3d.h" + +#include "scene/3d/camera_3d.h" +#include "scene/3d/gpu_particles_3d.h" +#include "scene/resources/particles_material.h" +#include "servers/rendering_server.h" + +AABB CPUParticles3D::get_aabb() const { + + return AABB(); +} +Vector<Face3> CPUParticles3D::get_faces(uint32_t p_usage_flags) const { + + return Vector<Face3>(); +} + +void CPUParticles3D::set_emitting(bool p_emitting) { + + if (emitting == p_emitting) + return; + + emitting = p_emitting; + if (emitting) { + set_process_internal(true); + + // first update before rendering to avoid one frame delay after emitting starts + if (time == 0) + _update_internal(); + } +} + +void CPUParticles3D::set_amount(int p_amount) { + + ERR_FAIL_COND_MSG(p_amount < 1, "Amount of particles must be greater than 0."); + + particles.resize(p_amount); + { + Particle *w = particles.ptrw(); + + for (int i = 0; i < p_amount; i++) { + w[i].active = false; + } + } + + particle_data.resize((12 + 4 + 4) * p_amount); + RS::get_singleton()->multimesh_allocate(multimesh, p_amount, RS::MULTIMESH_TRANSFORM_3D, true, true); + + particle_order.resize(p_amount); +} +void CPUParticles3D::set_lifetime(float p_lifetime) { + + ERR_FAIL_COND_MSG(p_lifetime <= 0, "Particles lifetime must be greater than 0."); + lifetime = p_lifetime; +} + +void CPUParticles3D::set_one_shot(bool p_one_shot) { + + one_shot = p_one_shot; +} + +void CPUParticles3D::set_pre_process_time(float p_time) { + + pre_process_time = p_time; +} +void CPUParticles3D::set_explosiveness_ratio(float p_ratio) { + + explosiveness_ratio = p_ratio; +} +void CPUParticles3D::set_randomness_ratio(float p_ratio) { + + randomness_ratio = p_ratio; +} +void CPUParticles3D::set_lifetime_randomness(float p_random) { + + lifetime_randomness = p_random; +} +void CPUParticles3D::set_use_local_coordinates(bool p_enable) { + + local_coords = p_enable; +} +void CPUParticles3D::set_speed_scale(float p_scale) { + + speed_scale = p_scale; +} + +bool CPUParticles3D::is_emitting() const { + + return emitting; +} +int CPUParticles3D::get_amount() const { + + return particles.size(); +} +float CPUParticles3D::get_lifetime() const { + + return lifetime; +} +bool CPUParticles3D::get_one_shot() const { + + return one_shot; +} + +float CPUParticles3D::get_pre_process_time() const { + + return pre_process_time; +} +float CPUParticles3D::get_explosiveness_ratio() const { + + return explosiveness_ratio; +} +float CPUParticles3D::get_randomness_ratio() const { + + return randomness_ratio; +} +float CPUParticles3D::get_lifetime_randomness() const { + + return lifetime_randomness; +} + +bool CPUParticles3D::get_use_local_coordinates() const { + + return local_coords; +} + +float CPUParticles3D::get_speed_scale() const { + + return speed_scale; +} + +void CPUParticles3D::set_draw_order(DrawOrder p_order) { + + draw_order = p_order; +} + +CPUParticles3D::DrawOrder CPUParticles3D::get_draw_order() const { + + return draw_order; +} + +void CPUParticles3D::set_mesh(const Ref<Mesh> &p_mesh) { + + mesh = p_mesh; + if (mesh.is_valid()) { + RS::get_singleton()->multimesh_set_mesh(multimesh, mesh->get_rid()); + } else { + RS::get_singleton()->multimesh_set_mesh(multimesh, RID()); + } +} + +Ref<Mesh> CPUParticles3D::get_mesh() const { + + return mesh; +} + +void CPUParticles3D::set_fixed_fps(int p_count) { + fixed_fps = p_count; +} + +int CPUParticles3D::get_fixed_fps() const { + return fixed_fps; +} + +void CPUParticles3D::set_fractional_delta(bool p_enable) { + fractional_delta = p_enable; +} + +bool CPUParticles3D::get_fractional_delta() const { + return fractional_delta; +} + +String CPUParticles3D::get_configuration_warning() const { + + String warnings; + + bool mesh_found = false; + bool anim_material_found = false; + + if (get_mesh().is_valid()) { + mesh_found = true; + for (int j = 0; j < get_mesh()->get_surface_count(); j++) { + anim_material_found = Object::cast_to<ShaderMaterial>(get_mesh()->surface_get_material(j).ptr()) != nullptr; + StandardMaterial3D *spat = Object::cast_to<StandardMaterial3D>(get_mesh()->surface_get_material(j).ptr()); + anim_material_found = anim_material_found || (spat && spat->get_billboard_mode() == StandardMaterial3D::BILLBOARD_PARTICLES); + } + } + + anim_material_found = anim_material_found || Object::cast_to<ShaderMaterial>(get_material_override().ptr()) != nullptr; + StandardMaterial3D *spat = Object::cast_to<StandardMaterial3D>(get_material_override().ptr()); + anim_material_found = anim_material_found || (spat && spat->get_billboard_mode() == StandardMaterial3D::BILLBOARD_PARTICLES); + + if (!mesh_found) { + if (warnings != String()) + warnings += "\n"; + warnings += "- " + TTR("Nothing is visible because no mesh has been assigned."); + } + + if (!anim_material_found && (get_param(PARAM_ANIM_SPEED) != 0.0 || get_param(PARAM_ANIM_OFFSET) != 0.0 || + get_param_curve(PARAM_ANIM_SPEED).is_valid() || get_param_curve(PARAM_ANIM_OFFSET).is_valid())) { + if (warnings != String()) + warnings += "\n"; + warnings += "- " + TTR("CPUParticles3D animation requires the usage of a StandardMaterial3D whose Billboard Mode is set to \"Particle Billboard\"."); + } + + return warnings; +} + +void CPUParticles3D::restart() { + + time = 0; + inactive_time = 0; + frame_remainder = 0; + cycle = 0; + emitting = false; + + { + int pc = particles.size(); + Particle *w = particles.ptrw(); + + for (int i = 0; i < pc; i++) { + w[i].active = false; + } + } + + set_emitting(true); +} + +void CPUParticles3D::set_direction(Vector3 p_direction) { + + direction = p_direction; +} + +Vector3 CPUParticles3D::get_direction() const { + + return direction; +} + +void CPUParticles3D::set_spread(float p_spread) { + + spread = p_spread; +} + +float CPUParticles3D::get_spread() const { + + return spread; +} + +void CPUParticles3D::set_flatness(float p_flatness) { + + flatness = p_flatness; +} +float CPUParticles3D::get_flatness() const { + + return flatness; +} + +void CPUParticles3D::set_param(Parameter p_param, float p_value) { + + ERR_FAIL_INDEX(p_param, PARAM_MAX); + + parameters[p_param] = p_value; +} +float CPUParticles3D::get_param(Parameter p_param) const { + + ERR_FAIL_INDEX_V(p_param, PARAM_MAX, 0); + + return parameters[p_param]; +} + +void CPUParticles3D::set_param_randomness(Parameter p_param, float p_value) { + + ERR_FAIL_INDEX(p_param, PARAM_MAX); + + randomness[p_param] = p_value; +} +float CPUParticles3D::get_param_randomness(Parameter p_param) const { + + ERR_FAIL_INDEX_V(p_param, PARAM_MAX, 0); + + return randomness[p_param]; +} + +static void _adjust_curve_range(const Ref<Curve> &p_curve, float p_min, float p_max) { + + Ref<Curve> curve = p_curve; + if (!curve.is_valid()) + return; + + curve->ensure_default_setup(p_min, p_max); +} + +void CPUParticles3D::set_param_curve(Parameter p_param, const Ref<Curve> &p_curve) { + + ERR_FAIL_INDEX(p_param, PARAM_MAX); + + curve_parameters[p_param] = p_curve; + + switch (p_param) { + case PARAM_INITIAL_LINEAR_VELOCITY: { + //do none for this one + } break; + case PARAM_ANGULAR_VELOCITY: { + _adjust_curve_range(p_curve, -360, 360); + } break; + case PARAM_ORBIT_VELOCITY: { + _adjust_curve_range(p_curve, -500, 500); + } break; + case PARAM_LINEAR_ACCEL: { + _adjust_curve_range(p_curve, -200, 200); + } break; + case PARAM_RADIAL_ACCEL: { + _adjust_curve_range(p_curve, -200, 200); + } break; + case PARAM_TANGENTIAL_ACCEL: { + _adjust_curve_range(p_curve, -200, 200); + } break; + case PARAM_DAMPING: { + _adjust_curve_range(p_curve, 0, 100); + } break; + case PARAM_ANGLE: { + _adjust_curve_range(p_curve, -360, 360); + } break; + case PARAM_SCALE: { + + } break; + case PARAM_HUE_VARIATION: { + _adjust_curve_range(p_curve, -1, 1); + } break; + case PARAM_ANIM_SPEED: { + _adjust_curve_range(p_curve, 0, 200); + } break; + case PARAM_ANIM_OFFSET: { + } break; + default: { + } + } +} +Ref<Curve> CPUParticles3D::get_param_curve(Parameter p_param) const { + + ERR_FAIL_INDEX_V(p_param, PARAM_MAX, Ref<Curve>()); + + return curve_parameters[p_param]; +} + +void CPUParticles3D::set_color(const Color &p_color) { + + color = p_color; +} + +Color CPUParticles3D::get_color() const { + + return color; +} + +void CPUParticles3D::set_color_ramp(const Ref<Gradient> &p_ramp) { + + color_ramp = p_ramp; +} + +Ref<Gradient> CPUParticles3D::get_color_ramp() const { + + return color_ramp; +} + +void CPUParticles3D::set_particle_flag(Flags p_flag, bool p_enable) { + ERR_FAIL_INDEX(p_flag, FLAG_MAX); + flags[p_flag] = p_enable; + if (p_flag == FLAG_DISABLE_Z) { + _change_notify(); + } +} + +bool CPUParticles3D::get_particle_flag(Flags p_flag) const { + ERR_FAIL_INDEX_V(p_flag, FLAG_MAX, false); + return flags[p_flag]; +} + +void CPUParticles3D::set_emission_shape(EmissionShape p_shape) { + ERR_FAIL_INDEX(p_shape, EMISSION_SHAPE_MAX); + emission_shape = p_shape; +} + +void CPUParticles3D::set_emission_sphere_radius(float p_radius) { + + emission_sphere_radius = p_radius; +} + +void CPUParticles3D::set_emission_box_extents(Vector3 p_extents) { + + emission_box_extents = p_extents; +} + +void CPUParticles3D::set_emission_points(const Vector<Vector3> &p_points) { + + emission_points = p_points; +} + +void CPUParticles3D::set_emission_normals(const Vector<Vector3> &p_normals) { + + emission_normals = p_normals; +} + +void CPUParticles3D::set_emission_colors(const Vector<Color> &p_colors) { + + emission_colors = p_colors; +} + +float CPUParticles3D::get_emission_sphere_radius() const { + + return emission_sphere_radius; +} +Vector3 CPUParticles3D::get_emission_box_extents() const { + + return emission_box_extents; +} +Vector<Vector3> CPUParticles3D::get_emission_points() const { + + return emission_points; +} +Vector<Vector3> CPUParticles3D::get_emission_normals() const { + + return emission_normals; +} + +Vector<Color> CPUParticles3D::get_emission_colors() const { + + return emission_colors; +} + +CPUParticles3D::EmissionShape CPUParticles3D::get_emission_shape() const { + return emission_shape; +} +void CPUParticles3D::set_gravity(const Vector3 &p_gravity) { + + gravity = p_gravity; +} + +Vector3 CPUParticles3D::get_gravity() const { + + return gravity; +} + +void CPUParticles3D::_validate_property(PropertyInfo &property) const { + + if (property.name == "color" && color_ramp.is_valid()) { + property.usage = 0; + } + + if (property.name == "emission_sphere_radius" && emission_shape != EMISSION_SHAPE_SPHERE) { + property.usage = 0; + } + + if (property.name == "emission_box_extents" && emission_shape != EMISSION_SHAPE_BOX) { + property.usage = 0; + } + + if ((property.name == "emission_point_texture" || property.name == "emission_color_texture") && (emission_shape < EMISSION_SHAPE_POINTS)) { + property.usage = 0; + } + + if (property.name == "emission_normals" && emission_shape != EMISSION_SHAPE_DIRECTED_POINTS) { + property.usage = 0; + } + + if (property.name.begins_with("orbit_") && !flags[FLAG_DISABLE_Z]) { + property.usage = 0; + } +} + +static uint32_t idhash(uint32_t x) { + + x = ((x >> uint32_t(16)) ^ x) * uint32_t(0x45d9f3b); + x = ((x >> uint32_t(16)) ^ x) * uint32_t(0x45d9f3b); + x = (x >> uint32_t(16)) ^ x; + return x; +} + +static float rand_from_seed(uint32_t &seed) { + int k; + int s = int(seed); + if (s == 0) + s = 305420679; + k = s / 127773; + s = 16807 * (s - k * 127773) - 2836 * k; + if (s < 0) + s += 2147483647; + seed = uint32_t(s); + return float(seed % uint32_t(65536)) / 65535.0; +} + +void CPUParticles3D::_update_internal() { + + if (particles.size() == 0 || !is_visible_in_tree()) { + _set_redraw(false); + return; + } + + float delta = get_process_delta_time(); + if (emitting) { + inactive_time = 0; + } else { + inactive_time += delta; + if (inactive_time > lifetime * 1.2) { + set_process_internal(false); + _set_redraw(false); + + //reset variables + time = 0; + inactive_time = 0; + frame_remainder = 0; + cycle = 0; + return; + } + } + _set_redraw(true); + + bool processed = false; + + if (time == 0 && pre_process_time > 0.0) { + + float frame_time; + if (fixed_fps > 0) + frame_time = 1.0 / fixed_fps; + else + frame_time = 1.0 / 30.0; + + float todo = pre_process_time; + + while (todo >= 0) { + _particles_process(frame_time); + processed = true; + todo -= frame_time; + } + } + + if (fixed_fps > 0) { + float frame_time = 1.0 / fixed_fps; + float decr = frame_time; + + float ldelta = delta; + if (ldelta > 0.1) { //avoid recursive stalls if fps goes below 10 + ldelta = 0.1; + } else if (ldelta <= 0.0) { //unlikely but.. + ldelta = 0.001; + } + float todo = frame_remainder + ldelta; + + while (todo >= frame_time) { + _particles_process(frame_time); + processed = true; + todo -= decr; + } + + frame_remainder = todo; + + } else { + _particles_process(delta); + processed = true; + } + + if (processed) { + _update_particle_data_buffer(); + } +} + +void CPUParticles3D::_particles_process(float p_delta) { + + p_delta *= speed_scale; + + int pcount = particles.size(); + Particle *w = particles.ptrw(); + + Particle *parray = w; + + float prev_time = time; + time += p_delta; + if (time > lifetime) { + time = Math::fmod(time, lifetime); + cycle++; + if (one_shot && cycle > 0) { + set_emitting(false); + _change_notify(); + } + } + + Transform emission_xform; + Basis velocity_xform; + if (!local_coords) { + emission_xform = get_global_transform(); + velocity_xform = emission_xform.basis; + } + + float system_phase = time / lifetime; + + for (int i = 0; i < pcount; i++) { + + Particle &p = parray[i]; + + if (!emitting && !p.active) + continue; + + float local_delta = p_delta; + + // The phase is a ratio between 0 (birth) and 1 (end of life) for each particle. + // While we use time in tests later on, for randomness we use the phase as done in the + // original shader code, and we later multiply by lifetime to get the time. + float restart_phase = float(i) / float(pcount); + + if (randomness_ratio > 0.0) { + uint32_t seed = cycle; + if (restart_phase >= system_phase) { + seed -= uint32_t(1); + } + seed *= uint32_t(pcount); + seed += uint32_t(i); + float random = float(idhash(seed) % uint32_t(65536)) / 65536.0; + restart_phase += randomness_ratio * random * 1.0 / float(pcount); + } + + restart_phase *= (1.0 - explosiveness_ratio); + float restart_time = restart_phase * lifetime; + bool restart = false; + + if (time > prev_time) { + // restart_time >= prev_time is used so particles emit in the first frame they are processed + + if (restart_time >= prev_time && restart_time < time) { + restart = true; + if (fractional_delta) { + local_delta = time - restart_time; + } + } + + } else if (local_delta > 0.0) { + if (restart_time >= prev_time) { + restart = true; + if (fractional_delta) { + local_delta = lifetime - restart_time + time; + } + + } else if (restart_time < time) { + restart = true; + if (fractional_delta) { + local_delta = time - restart_time; + } + } + } + + if (p.time * (1.0 - explosiveness_ratio) > p.lifetime) { + restart = true; + } + + if (restart) { + + if (!emitting) { + p.active = false; + continue; + } + p.active = true; + + /*float tex_linear_velocity = 0; + if (curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid()) { + tex_linear_velocity = curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY]->interpolate(0); + }*/ + + float tex_angle = 0.0; + if (curve_parameters[PARAM_ANGLE].is_valid()) { + tex_angle = curve_parameters[PARAM_ANGLE]->interpolate(0); + } + + float tex_anim_offset = 0.0; + if (curve_parameters[PARAM_ANGLE].is_valid()) { + tex_anim_offset = curve_parameters[PARAM_ANGLE]->interpolate(0); + } + + p.seed = Math::rand(); + + p.angle_rand = Math::randf(); + p.scale_rand = Math::randf(); + p.hue_rot_rand = Math::randf(); + p.anim_offset_rand = Math::randf(); + + if (flags[FLAG_DISABLE_Z]) { + float angle1_rad = Math::atan2(direction.y, direction.x) + (Math::randf() * 2.0 - 1.0) * Math_PI * spread / 180.0; + Vector3 rot = Vector3(Math::cos(angle1_rad), Math::sin(angle1_rad), 0.0); + p.velocity = rot * parameters[PARAM_INITIAL_LINEAR_VELOCITY] * Math::lerp(1.0f, float(Math::randf()), randomness[PARAM_INITIAL_LINEAR_VELOCITY]); + } else { + //initiate velocity spread in 3D + float angle1_rad = Math::atan2(direction.x, direction.z) + (Math::randf() * 2.0 - 1.0) * Math_PI * spread / 180.0; + float angle2_rad = Math::atan2(direction.y, Math::abs(direction.z)) + (Math::randf() * 2.0 - 1.0) * (1.0 - flatness) * Math_PI * spread / 180.0; + + Vector3 direction_xz = Vector3(Math::sin(angle1_rad), 0, Math::cos(angle1_rad)); + Vector3 direction_yz = Vector3(0, Math::sin(angle2_rad), Math::cos(angle2_rad)); + direction_yz.z = direction_yz.z / MAX(0.0001, Math::sqrt(ABS(direction_yz.z))); //better uniform distribution + Vector3 direction = Vector3(direction_xz.x * direction_yz.z, direction_yz.y, direction_xz.z * direction_yz.z); + direction.normalize(); + p.velocity = direction * parameters[PARAM_INITIAL_LINEAR_VELOCITY] * Math::lerp(1.0f, float(Math::randf()), randomness[PARAM_INITIAL_LINEAR_VELOCITY]); + } + + float base_angle = (parameters[PARAM_ANGLE] + tex_angle) * Math::lerp(1.0f, p.angle_rand, randomness[PARAM_ANGLE]); + p.custom[0] = Math::deg2rad(base_angle); //angle + p.custom[1] = 0.0; //phase + p.custom[2] = (parameters[PARAM_ANIM_OFFSET] + tex_anim_offset) * Math::lerp(1.0f, p.anim_offset_rand, randomness[PARAM_ANIM_OFFSET]); //animation offset (0-1) + p.transform = Transform(); + p.time = 0; + p.lifetime = lifetime * (1.0 - Math::randf() * lifetime_randomness); + p.base_color = Color(1, 1, 1, 1); + + switch (emission_shape) { + case EMISSION_SHAPE_POINT: { + //do none + } break; + case EMISSION_SHAPE_SPHERE: { + float s = 2.0 * Math::randf() - 1.0, t = 2.0 * Math_PI * Math::randf(); + float radius = emission_sphere_radius * Math::sqrt(1.0 - s * s); + p.transform.origin = Vector3(radius * Math::cos(t), radius * Math::sin(t), emission_sphere_radius * s); + } break; + case EMISSION_SHAPE_BOX: { + p.transform.origin = Vector3(Math::randf() * 2.0 - 1.0, Math::randf() * 2.0 - 1.0, Math::randf() * 2.0 - 1.0) * emission_box_extents; + } break; + case EMISSION_SHAPE_POINTS: + case EMISSION_SHAPE_DIRECTED_POINTS: { + + int pc = emission_points.size(); + if (pc == 0) + break; + + int random_idx = Math::rand() % pc; + + p.transform.origin = emission_points.get(random_idx); + + if (emission_shape == EMISSION_SHAPE_DIRECTED_POINTS && emission_normals.size() == pc) { + if (flags[FLAG_DISABLE_Z]) { + /* + mat2 rotm; + "; + rotm[0] = texelFetch(emission_texture_normal, emission_tex_ofs, 0).xy; + rotm[1] = rotm[0].yx * vec2(1.0, -1.0); + VELOCITY.xy = rotm * VELOCITY.xy; + */ + } else { + Vector3 normal = emission_normals.get(random_idx); + Vector3 v0 = Math::abs(normal.z) < 0.999 ? Vector3(0.0, 0.0, 1.0) : Vector3(0, 1.0, 0.0); + Vector3 tangent = v0.cross(normal).normalized(); + Vector3 bitangent = tangent.cross(normal).normalized(); + Basis m3; + m3.set_axis(0, tangent); + m3.set_axis(1, bitangent); + m3.set_axis(2, normal); + p.velocity = m3.xform(p.velocity); + } + } + + if (emission_colors.size() == pc) { + p.base_color = emission_colors.get(random_idx); + } + } break; + case EMISSION_SHAPE_MAX: { // Max value for validity check. + break; + } + } + + if (!local_coords) { + p.velocity = velocity_xform.xform(p.velocity); + p.transform = emission_xform * p.transform; + } + + if (flags[FLAG_DISABLE_Z]) { + p.velocity.z = 0.0; + p.transform.origin.z = 0.0; + } + + } else if (!p.active) { + continue; + } else if (p.time > p.lifetime) { + p.active = false; + } else { + + uint32_t alt_seed = p.seed; + + p.time += local_delta; + p.custom[1] = p.time / lifetime; + + float tex_linear_velocity = 0.0; + if (curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid()) { + tex_linear_velocity = curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY]->interpolate(p.custom[1]); + } + + float tex_orbit_velocity = 0.0; + if (flags[FLAG_DISABLE_Z]) { + if (curve_parameters[PARAM_ORBIT_VELOCITY].is_valid()) { + tex_orbit_velocity = curve_parameters[PARAM_ORBIT_VELOCITY]->interpolate(p.custom[1]); + } + } + + float tex_angular_velocity = 0.0; + if (curve_parameters[PARAM_ANGULAR_VELOCITY].is_valid()) { + tex_angular_velocity = curve_parameters[PARAM_ANGULAR_VELOCITY]->interpolate(p.custom[1]); + } + + float tex_linear_accel = 0.0; + if (curve_parameters[PARAM_LINEAR_ACCEL].is_valid()) { + tex_linear_accel = curve_parameters[PARAM_LINEAR_ACCEL]->interpolate(p.custom[1]); + } + + float tex_tangential_accel = 0.0; + if (curve_parameters[PARAM_TANGENTIAL_ACCEL].is_valid()) { + tex_tangential_accel = curve_parameters[PARAM_TANGENTIAL_ACCEL]->interpolate(p.custom[1]); + } + + float tex_radial_accel = 0.0; + if (curve_parameters[PARAM_RADIAL_ACCEL].is_valid()) { + tex_radial_accel = curve_parameters[PARAM_RADIAL_ACCEL]->interpolate(p.custom[1]); + } + + float tex_damping = 0.0; + if (curve_parameters[PARAM_DAMPING].is_valid()) { + tex_damping = curve_parameters[PARAM_DAMPING]->interpolate(p.custom[1]); + } + + float tex_angle = 0.0; + if (curve_parameters[PARAM_ANGLE].is_valid()) { + tex_angle = curve_parameters[PARAM_ANGLE]->interpolate(p.custom[1]); + } + float tex_anim_speed = 0.0; + if (curve_parameters[PARAM_ANIM_SPEED].is_valid()) { + tex_anim_speed = curve_parameters[PARAM_ANIM_SPEED]->interpolate(p.custom[1]); + } + + float tex_anim_offset = 0.0; + if (curve_parameters[PARAM_ANIM_OFFSET].is_valid()) { + tex_anim_offset = curve_parameters[PARAM_ANIM_OFFSET]->interpolate(p.custom[1]); + } + + Vector3 force = gravity; + Vector3 position = p.transform.origin; + if (flags[FLAG_DISABLE_Z]) { + position.z = 0.0; + } + //apply linear acceleration + force += p.velocity.length() > 0.0 ? p.velocity.normalized() * (parameters[PARAM_LINEAR_ACCEL] + tex_linear_accel) * Math::lerp(1.0f, rand_from_seed(alt_seed), randomness[PARAM_LINEAR_ACCEL]) : Vector3(); + //apply radial acceleration + Vector3 org = emission_xform.origin; + Vector3 diff = position - org; + force += diff.length() > 0.0 ? diff.normalized() * (parameters[PARAM_RADIAL_ACCEL] + tex_radial_accel) * Math::lerp(1.0f, rand_from_seed(alt_seed), randomness[PARAM_RADIAL_ACCEL]) : Vector3(); + //apply tangential acceleration; + if (flags[FLAG_DISABLE_Z]) { + + Vector2 yx = Vector2(diff.y, diff.x); + Vector2 yx2 = (yx * Vector2(-1.0, 1.0)).normalized(); + force += yx.length() > 0.0 ? Vector3(yx2.x, yx2.y, 0.0) * ((parameters[PARAM_TANGENTIAL_ACCEL] + tex_tangential_accel) * Math::lerp(1.0f, rand_from_seed(alt_seed), randomness[PARAM_TANGENTIAL_ACCEL])) : Vector3(); + + } else { + Vector3 crossDiff = diff.normalized().cross(gravity.normalized()); + force += crossDiff.length() > 0.0 ? crossDiff.normalized() * ((parameters[PARAM_TANGENTIAL_ACCEL] + tex_tangential_accel) * Math::lerp(1.0f, rand_from_seed(alt_seed), randomness[PARAM_TANGENTIAL_ACCEL])) : Vector3(); + } + //apply attractor forces + p.velocity += force * local_delta; + //orbit velocity + if (flags[FLAG_DISABLE_Z]) { + float orbit_amount = (parameters[PARAM_ORBIT_VELOCITY] + tex_orbit_velocity) * Math::lerp(1.0f, rand_from_seed(alt_seed), randomness[PARAM_ORBIT_VELOCITY]); + if (orbit_amount != 0.0) { + float ang = orbit_amount * local_delta * Math_PI * 2.0; + // Not sure why the ParticlesMaterial code uses a clockwise rotation matrix, + // but we use -ang here to reproduce its behavior. + Transform2D rot = Transform2D(-ang, Vector2()); + Vector2 rotv = rot.basis_xform(Vector2(diff.x, diff.y)); + p.transform.origin -= Vector3(diff.x, diff.y, 0); + p.transform.origin += Vector3(rotv.x, rotv.y, 0); + } + } + if (curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid()) { + p.velocity = p.velocity.normalized() * tex_linear_velocity; + } + if (parameters[PARAM_DAMPING] + tex_damping > 0.0) { + + float v = p.velocity.length(); + float damp = (parameters[PARAM_DAMPING] + tex_damping) * Math::lerp(1.0f, rand_from_seed(alt_seed), randomness[PARAM_DAMPING]); + v -= damp * local_delta; + if (v < 0.0) { + p.velocity = Vector3(); + } else { + p.velocity = p.velocity.normalized() * v; + } + } + float base_angle = (parameters[PARAM_ANGLE] + tex_angle) * Math::lerp(1.0f, p.angle_rand, randomness[PARAM_ANGLE]); + base_angle += p.custom[1] * lifetime * (parameters[PARAM_ANGULAR_VELOCITY] + tex_angular_velocity) * Math::lerp(1.0f, rand_from_seed(alt_seed) * 2.0f - 1.0f, randomness[PARAM_ANGULAR_VELOCITY]); + p.custom[0] = Math::deg2rad(base_angle); //angle + p.custom[2] = (parameters[PARAM_ANIM_OFFSET] + tex_anim_offset) * Math::lerp(1.0f, p.anim_offset_rand, randomness[PARAM_ANIM_OFFSET]) + p.custom[1] * (parameters[PARAM_ANIM_SPEED] + tex_anim_speed) * Math::lerp(1.0f, rand_from_seed(alt_seed), randomness[PARAM_ANIM_SPEED]); //angle + } + //apply color + //apply hue rotation + + float tex_scale = 1.0; + if (curve_parameters[PARAM_SCALE].is_valid()) { + tex_scale = curve_parameters[PARAM_SCALE]->interpolate(p.custom[1]); + } + + float tex_hue_variation = 0.0; + if (curve_parameters[PARAM_HUE_VARIATION].is_valid()) { + tex_hue_variation = curve_parameters[PARAM_HUE_VARIATION]->interpolate(p.custom[1]); + } + + float hue_rot_angle = (parameters[PARAM_HUE_VARIATION] + tex_hue_variation) * Math_PI * 2.0 * Math::lerp(1.0f, p.hue_rot_rand * 2.0f - 1.0f, randomness[PARAM_HUE_VARIATION]); + float hue_rot_c = Math::cos(hue_rot_angle); + float hue_rot_s = Math::sin(hue_rot_angle); + + Basis hue_rot_mat; + { + Basis mat1(0.299, 0.587, 0.114, 0.299, 0.587, 0.114, 0.299, 0.587, 0.114); + Basis mat2(0.701, -0.587, -0.114, -0.299, 0.413, -0.114, -0.300, -0.588, 0.886); + Basis mat3(0.168, 0.330, -0.497, -0.328, 0.035, 0.292, 1.250, -1.050, -0.203); + + for (int j = 0; j < 3; j++) { + hue_rot_mat[j] = mat1[j] + mat2[j] * hue_rot_c + mat3[j] * hue_rot_s; + } + } + + if (color_ramp.is_valid()) { + p.color = color_ramp->get_color_at_offset(p.custom[1]) * color; + } else { + p.color = color; + } + + Vector3 color_rgb = hue_rot_mat.xform_inv(Vector3(p.color.r, p.color.g, p.color.b)); + p.color.r = color_rgb.x; + p.color.g = color_rgb.y; + p.color.b = color_rgb.z; + + p.color *= p.base_color; + + if (flags[FLAG_DISABLE_Z]) { + + if (flags[FLAG_ALIGN_Y_TO_VELOCITY]) { + if (p.velocity.length() > 0.0) { + p.transform.basis.set_axis(1, p.velocity.normalized()); + } else { + p.transform.basis.set_axis(1, p.transform.basis.get_axis(1)); + } + p.transform.basis.set_axis(0, p.transform.basis.get_axis(1).cross(p.transform.basis.get_axis(2)).normalized()); + p.transform.basis.set_axis(2, Vector3(0, 0, 1)); + + } else { + p.transform.basis.set_axis(0, Vector3(Math::cos(p.custom[0]), -Math::sin(p.custom[0]), 0.0)); + p.transform.basis.set_axis(1, Vector3(Math::sin(p.custom[0]), Math::cos(p.custom[0]), 0.0)); + p.transform.basis.set_axis(2, Vector3(0, 0, 1)); + } + + } else { + //orient particle Y towards velocity + if (flags[FLAG_ALIGN_Y_TO_VELOCITY]) { + if (p.velocity.length() > 0.0) { + p.transform.basis.set_axis(1, p.velocity.normalized()); + } else { + p.transform.basis.set_axis(1, p.transform.basis.get_axis(1).normalized()); + } + if (p.transform.basis.get_axis(1) == p.transform.basis.get_axis(0)) { + p.transform.basis.set_axis(0, p.transform.basis.get_axis(1).cross(p.transform.basis.get_axis(2)).normalized()); + p.transform.basis.set_axis(2, p.transform.basis.get_axis(0).cross(p.transform.basis.get_axis(1)).normalized()); + } else { + p.transform.basis.set_axis(2, p.transform.basis.get_axis(0).cross(p.transform.basis.get_axis(1)).normalized()); + p.transform.basis.set_axis(0, p.transform.basis.get_axis(1).cross(p.transform.basis.get_axis(2)).normalized()); + } + } else { + p.transform.basis.orthonormalize(); + } + + //turn particle by rotation in Y + if (flags[FLAG_ROTATE_Y]) { + Basis rot_y(Vector3(0, 1, 0), p.custom[0]); + p.transform.basis = p.transform.basis * rot_y; + } + } + + //scale by scale + float base_scale = tex_scale * Math::lerp(parameters[PARAM_SCALE], 1.0f, p.scale_rand * randomness[PARAM_SCALE]); + if (base_scale < 0.000001) base_scale = 0.000001; + + p.transform.basis.scale(Vector3(1, 1, 1) * base_scale); + + if (flags[FLAG_DISABLE_Z]) { + p.velocity.z = 0.0; + p.transform.origin.z = 0.0; + } + + p.transform.origin += p.velocity * local_delta; + } +} + +void CPUParticles3D::_update_particle_data_buffer() { + MutexLock lock(update_mutex); + + int pc = particles.size(); + + int *ow; + int *order = nullptr; + + float *w = particle_data.ptrw(); + const Particle *r = particles.ptr(); + float *ptr = w; + + if (draw_order != DRAW_ORDER_INDEX) { + ow = particle_order.ptrw(); + order = ow; + + for (int i = 0; i < pc; i++) { + order[i] = i; + } + if (draw_order == DRAW_ORDER_LIFETIME) { + SortArray<int, SortLifetime> sorter; + sorter.compare.particles = r; + sorter.sort(order, pc); + } else if (draw_order == DRAW_ORDER_VIEW_DEPTH) { + Camera3D *c = get_viewport()->get_camera(); + if (c) { + Vector3 dir = c->get_global_transform().basis.get_axis(2); //far away to close + + if (local_coords) { + + // will look different from Particles in editor as this is based on the camera in the scenetree + // and not the editor camera + dir = inv_emission_transform.xform(dir).normalized(); + } else { + dir = dir.normalized(); + } + + SortArray<int, SortAxis> sorter; + sorter.compare.particles = r; + sorter.compare.axis = dir; + sorter.sort(order, pc); + } + } + } + + for (int i = 0; i < pc; i++) { + + int idx = order ? order[i] : i; + + Transform t = r[idx].transform; + + if (!local_coords) { + t = inv_emission_transform * t; + } + + if (r[idx].active) { + ptr[0] = t.basis.elements[0][0]; + ptr[1] = t.basis.elements[0][1]; + ptr[2] = t.basis.elements[0][2]; + ptr[3] = t.origin.x; + ptr[4] = t.basis.elements[1][0]; + ptr[5] = t.basis.elements[1][1]; + ptr[6] = t.basis.elements[1][2]; + ptr[7] = t.origin.y; + ptr[8] = t.basis.elements[2][0]; + ptr[9] = t.basis.elements[2][1]; + ptr[10] = t.basis.elements[2][2]; + ptr[11] = t.origin.z; + } else { + zeromem(ptr, sizeof(float) * 12); + } + + Color c = r[idx].color; + + ptr[12] = c.r; + ptr[13] = c.g; + ptr[14] = c.b; + ptr[15] = c.a; + + ptr[16] = r[idx].custom[0]; + ptr[17] = r[idx].custom[1]; + ptr[18] = r[idx].custom[2]; + ptr[19] = r[idx].custom[3]; + + ptr += 20; + } + + can_update = true; +} + +void CPUParticles3D::_set_redraw(bool p_redraw) { + if (redraw == p_redraw) + return; + redraw = p_redraw; + + { + MutexLock lock(update_mutex); + + if (redraw) { + RS::get_singleton()->connect("frame_pre_draw", callable_mp(this, &CPUParticles3D::_update_render_thread)); + RS::get_singleton()->instance_geometry_set_flag(get_instance(), RS::INSTANCE_FLAG_DRAW_NEXT_FRAME_IF_VISIBLE, true); + RS::get_singleton()->multimesh_set_visible_instances(multimesh, -1); + } else { + if (RS::get_singleton()->is_connected("frame_pre_draw", callable_mp(this, &CPUParticles3D::_update_render_thread))) { + RS::get_singleton()->disconnect("frame_pre_draw", callable_mp(this, &CPUParticles3D::_update_render_thread)); + } + RS::get_singleton()->instance_geometry_set_flag(get_instance(), RS::INSTANCE_FLAG_DRAW_NEXT_FRAME_IF_VISIBLE, false); + RS::get_singleton()->multimesh_set_visible_instances(multimesh, 0); + } + } +} + +void CPUParticles3D::_update_render_thread() { + + MutexLock lock(update_mutex); + + if (can_update) { + RS::get_singleton()->multimesh_set_buffer(multimesh, particle_data); + can_update = false; //wait for next time + } +} + +void CPUParticles3D::_notification(int p_what) { + + if (p_what == NOTIFICATION_ENTER_TREE) { + set_process_internal(emitting); + + // first update before rendering to avoid one frame delay after emitting starts + if (emitting && (time == 0)) + _update_internal(); + } + + if (p_what == NOTIFICATION_EXIT_TREE) { + _set_redraw(false); + } + + if (p_what == NOTIFICATION_VISIBILITY_CHANGED) { + // first update before rendering to avoid one frame delay after emitting starts + if (emitting && (time == 0)) + _update_internal(); + } + + if (p_what == NOTIFICATION_INTERNAL_PROCESS) { + _update_internal(); + } + + if (p_what == NOTIFICATION_TRANSFORM_CHANGED) { + + inv_emission_transform = get_global_transform().affine_inverse(); + + if (!local_coords) { + + int pc = particles.size(); + + float *w = particle_data.ptrw(); + const Particle *r = particles.ptr(); + float *ptr = w; + + for (int i = 0; i < pc; i++) { + + Transform t = inv_emission_transform * r[i].transform; + + if (r[i].active) { + ptr[0] = t.basis.elements[0][0]; + ptr[1] = t.basis.elements[0][1]; + ptr[2] = t.basis.elements[0][2]; + ptr[3] = t.origin.x; + ptr[4] = t.basis.elements[1][0]; + ptr[5] = t.basis.elements[1][1]; + ptr[6] = t.basis.elements[1][2]; + ptr[7] = t.origin.y; + ptr[8] = t.basis.elements[2][0]; + ptr[9] = t.basis.elements[2][1]; + ptr[10] = t.basis.elements[2][2]; + ptr[11] = t.origin.z; + } else { + zeromem(ptr, sizeof(float) * 12); + } + + ptr += 20; + } + + can_update = true; + } + } +} + +void CPUParticles3D::convert_from_particles(Node *p_particles) { + + GPUParticles3D *particles = Object::cast_to<GPUParticles3D>(p_particles); + ERR_FAIL_COND_MSG(!particles, "Only GPUParticles3D nodes can be converted to CPUParticles3D."); + + set_emitting(particles->is_emitting()); + set_amount(particles->get_amount()); + set_lifetime(particles->get_lifetime()); + set_one_shot(particles->get_one_shot()); + set_pre_process_time(particles->get_pre_process_time()); + set_explosiveness_ratio(particles->get_explosiveness_ratio()); + set_randomness_ratio(particles->get_randomness_ratio()); + set_use_local_coordinates(particles->get_use_local_coordinates()); + set_fixed_fps(particles->get_fixed_fps()); + set_fractional_delta(particles->get_fractional_delta()); + set_speed_scale(particles->get_speed_scale()); + set_draw_order(DrawOrder(particles->get_draw_order())); + set_mesh(particles->get_draw_pass_mesh(0)); + + Ref<ParticlesMaterial> material = particles->get_process_material(); + if (material.is_null()) + return; + + set_direction(material->get_direction()); + set_spread(material->get_spread()); + set_flatness(material->get_flatness()); + + set_color(material->get_color()); + + Ref<GradientTexture> gt = material->get_color_ramp(); + if (gt.is_valid()) { + set_color_ramp(gt->get_gradient()); + } + + set_particle_flag(FLAG_ALIGN_Y_TO_VELOCITY, material->get_flag(ParticlesMaterial::FLAG_ALIGN_Y_TO_VELOCITY)); + set_particle_flag(FLAG_ROTATE_Y, material->get_flag(ParticlesMaterial::FLAG_ROTATE_Y)); + set_particle_flag(FLAG_DISABLE_Z, material->get_flag(ParticlesMaterial::FLAG_DISABLE_Z)); + + set_emission_shape(EmissionShape(material->get_emission_shape())); + set_emission_sphere_radius(material->get_emission_sphere_radius()); + set_emission_box_extents(material->get_emission_box_extents()); + + set_gravity(material->get_gravity()); + set_lifetime_randomness(material->get_lifetime_randomness()); + +#define CONVERT_PARAM(m_param) \ + set_param(m_param, material->get_param(ParticlesMaterial::m_param)); \ + { \ + Ref<CurveTexture> ctex = material->get_param_texture(ParticlesMaterial::m_param); \ + if (ctex.is_valid()) set_param_curve(m_param, ctex->get_curve()); \ + } \ + set_param_randomness(m_param, material->get_param_randomness(ParticlesMaterial::m_param)); + + CONVERT_PARAM(PARAM_INITIAL_LINEAR_VELOCITY); + CONVERT_PARAM(PARAM_ANGULAR_VELOCITY); + CONVERT_PARAM(PARAM_ORBIT_VELOCITY); + CONVERT_PARAM(PARAM_LINEAR_ACCEL); + CONVERT_PARAM(PARAM_RADIAL_ACCEL); + CONVERT_PARAM(PARAM_TANGENTIAL_ACCEL); + CONVERT_PARAM(PARAM_DAMPING); + CONVERT_PARAM(PARAM_ANGLE); + CONVERT_PARAM(PARAM_SCALE); + CONVERT_PARAM(PARAM_HUE_VARIATION); + CONVERT_PARAM(PARAM_ANIM_SPEED); + CONVERT_PARAM(PARAM_ANIM_OFFSET); + +#undef CONVERT_PARAM +} + +void CPUParticles3D::_bind_methods() { + + ClassDB::bind_method(D_METHOD("set_emitting", "emitting"), &CPUParticles3D::set_emitting); + ClassDB::bind_method(D_METHOD("set_amount", "amount"), &CPUParticles3D::set_amount); + ClassDB::bind_method(D_METHOD("set_lifetime", "secs"), &CPUParticles3D::set_lifetime); + ClassDB::bind_method(D_METHOD("set_one_shot", "enable"), &CPUParticles3D::set_one_shot); + ClassDB::bind_method(D_METHOD("set_pre_process_time", "secs"), &CPUParticles3D::set_pre_process_time); + ClassDB::bind_method(D_METHOD("set_explosiveness_ratio", "ratio"), &CPUParticles3D::set_explosiveness_ratio); + ClassDB::bind_method(D_METHOD("set_randomness_ratio", "ratio"), &CPUParticles3D::set_randomness_ratio); + ClassDB::bind_method(D_METHOD("set_lifetime_randomness", "random"), &CPUParticles3D::set_lifetime_randomness); + ClassDB::bind_method(D_METHOD("set_use_local_coordinates", "enable"), &CPUParticles3D::set_use_local_coordinates); + ClassDB::bind_method(D_METHOD("set_fixed_fps", "fps"), &CPUParticles3D::set_fixed_fps); + ClassDB::bind_method(D_METHOD("set_fractional_delta", "enable"), &CPUParticles3D::set_fractional_delta); + ClassDB::bind_method(D_METHOD("set_speed_scale", "scale"), &CPUParticles3D::set_speed_scale); + + ClassDB::bind_method(D_METHOD("is_emitting"), &CPUParticles3D::is_emitting); + ClassDB::bind_method(D_METHOD("get_amount"), &CPUParticles3D::get_amount); + ClassDB::bind_method(D_METHOD("get_lifetime"), &CPUParticles3D::get_lifetime); + ClassDB::bind_method(D_METHOD("get_one_shot"), &CPUParticles3D::get_one_shot); + ClassDB::bind_method(D_METHOD("get_pre_process_time"), &CPUParticles3D::get_pre_process_time); + ClassDB::bind_method(D_METHOD("get_explosiveness_ratio"), &CPUParticles3D::get_explosiveness_ratio); + ClassDB::bind_method(D_METHOD("get_randomness_ratio"), &CPUParticles3D::get_randomness_ratio); + ClassDB::bind_method(D_METHOD("get_lifetime_randomness"), &CPUParticles3D::get_lifetime_randomness); + ClassDB::bind_method(D_METHOD("get_use_local_coordinates"), &CPUParticles3D::get_use_local_coordinates); + ClassDB::bind_method(D_METHOD("get_fixed_fps"), &CPUParticles3D::get_fixed_fps); + ClassDB::bind_method(D_METHOD("get_fractional_delta"), &CPUParticles3D::get_fractional_delta); + ClassDB::bind_method(D_METHOD("get_speed_scale"), &CPUParticles3D::get_speed_scale); + + ClassDB::bind_method(D_METHOD("set_draw_order", "order"), &CPUParticles3D::set_draw_order); + + ClassDB::bind_method(D_METHOD("get_draw_order"), &CPUParticles3D::get_draw_order); + + ClassDB::bind_method(D_METHOD("set_mesh", "mesh"), &CPUParticles3D::set_mesh); + ClassDB::bind_method(D_METHOD("get_mesh"), &CPUParticles3D::get_mesh); + + ClassDB::bind_method(D_METHOD("restart"), &CPUParticles3D::restart); + + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "emitting"), "set_emitting", "is_emitting"); + ADD_PROPERTY(PropertyInfo(Variant::INT, "amount", PROPERTY_HINT_EXP_RANGE, "1,1000000,1"), "set_amount", "get_amount"); + ADD_GROUP("Time", ""); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "lifetime", PROPERTY_HINT_EXP_RANGE, "0.01,600.0,0.01,or_greater"), "set_lifetime", "get_lifetime"); + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "one_shot"), "set_one_shot", "get_one_shot"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "preprocess", PROPERTY_HINT_EXP_RANGE, "0.00,600.0,0.01"), "set_pre_process_time", "get_pre_process_time"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "speed_scale", PROPERTY_HINT_RANGE, "0,64,0.01"), "set_speed_scale", "get_speed_scale"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "explosiveness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_explosiveness_ratio", "get_explosiveness_ratio"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "randomness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_randomness_ratio", "get_randomness_ratio"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "lifetime_randomness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_lifetime_randomness", "get_lifetime_randomness"); + ADD_PROPERTY(PropertyInfo(Variant::INT, "fixed_fps", PROPERTY_HINT_RANGE, "0,1000,1"), "set_fixed_fps", "get_fixed_fps"); + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "fract_delta"), "set_fractional_delta", "get_fractional_delta"); + ADD_GROUP("Drawing", ""); + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "local_coords"), "set_use_local_coordinates", "get_use_local_coordinates"); + ADD_PROPERTY(PropertyInfo(Variant::INT, "draw_order", PROPERTY_HINT_ENUM, "Index,Lifetime,View Depth"), "set_draw_order", "get_draw_order"); + ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "mesh", PROPERTY_HINT_RESOURCE_TYPE, "Mesh"), "set_mesh", "get_mesh"); + + BIND_ENUM_CONSTANT(DRAW_ORDER_INDEX); + BIND_ENUM_CONSTANT(DRAW_ORDER_LIFETIME); + BIND_ENUM_CONSTANT(DRAW_ORDER_VIEW_DEPTH); + + //////////////////////////////// + + ClassDB::bind_method(D_METHOD("set_direction", "direction"), &CPUParticles3D::set_direction); + ClassDB::bind_method(D_METHOD("get_direction"), &CPUParticles3D::get_direction); + + ClassDB::bind_method(D_METHOD("set_spread", "degrees"), &CPUParticles3D::set_spread); + ClassDB::bind_method(D_METHOD("get_spread"), &CPUParticles3D::get_spread); + + ClassDB::bind_method(D_METHOD("set_flatness", "amount"), &CPUParticles3D::set_flatness); + ClassDB::bind_method(D_METHOD("get_flatness"), &CPUParticles3D::get_flatness); + + ClassDB::bind_method(D_METHOD("set_param", "param", "value"), &CPUParticles3D::set_param); + ClassDB::bind_method(D_METHOD("get_param", "param"), &CPUParticles3D::get_param); + + ClassDB::bind_method(D_METHOD("set_param_randomness", "param", "randomness"), &CPUParticles3D::set_param_randomness); + ClassDB::bind_method(D_METHOD("get_param_randomness", "param"), &CPUParticles3D::get_param_randomness); + + ClassDB::bind_method(D_METHOD("set_param_curve", "param", "curve"), &CPUParticles3D::set_param_curve); + ClassDB::bind_method(D_METHOD("get_param_curve", "param"), &CPUParticles3D::get_param_curve); + + ClassDB::bind_method(D_METHOD("set_color", "color"), &CPUParticles3D::set_color); + ClassDB::bind_method(D_METHOD("get_color"), &CPUParticles3D::get_color); + + ClassDB::bind_method(D_METHOD("set_color_ramp", "ramp"), &CPUParticles3D::set_color_ramp); + ClassDB::bind_method(D_METHOD("get_color_ramp"), &CPUParticles3D::get_color_ramp); + + ClassDB::bind_method(D_METHOD("set_particle_flag", "flag", "enable"), &CPUParticles3D::set_particle_flag); + ClassDB::bind_method(D_METHOD("get_particle_flag", "flag"), &CPUParticles3D::get_particle_flag); + + ClassDB::bind_method(D_METHOD("set_emission_shape", "shape"), &CPUParticles3D::set_emission_shape); + ClassDB::bind_method(D_METHOD("get_emission_shape"), &CPUParticles3D::get_emission_shape); + + ClassDB::bind_method(D_METHOD("set_emission_sphere_radius", "radius"), &CPUParticles3D::set_emission_sphere_radius); + ClassDB::bind_method(D_METHOD("get_emission_sphere_radius"), &CPUParticles3D::get_emission_sphere_radius); + + ClassDB::bind_method(D_METHOD("set_emission_box_extents", "extents"), &CPUParticles3D::set_emission_box_extents); + ClassDB::bind_method(D_METHOD("get_emission_box_extents"), &CPUParticles3D::get_emission_box_extents); + + ClassDB::bind_method(D_METHOD("set_emission_points", "array"), &CPUParticles3D::set_emission_points); + ClassDB::bind_method(D_METHOD("get_emission_points"), &CPUParticles3D::get_emission_points); + + ClassDB::bind_method(D_METHOD("set_emission_normals", "array"), &CPUParticles3D::set_emission_normals); + ClassDB::bind_method(D_METHOD("get_emission_normals"), &CPUParticles3D::get_emission_normals); + + ClassDB::bind_method(D_METHOD("set_emission_colors", "array"), &CPUParticles3D::set_emission_colors); + ClassDB::bind_method(D_METHOD("get_emission_colors"), &CPUParticles3D::get_emission_colors); + + ClassDB::bind_method(D_METHOD("get_gravity"), &CPUParticles3D::get_gravity); + ClassDB::bind_method(D_METHOD("set_gravity", "accel_vec"), &CPUParticles3D::set_gravity); + + ClassDB::bind_method(D_METHOD("convert_from_particles", "particles"), &CPUParticles3D::convert_from_particles); + + ADD_GROUP("Emission Shape", "emission_"); + ADD_PROPERTY(PropertyInfo(Variant::INT, "emission_shape", PROPERTY_HINT_ENUM, "Point,Sphere,Box,Points,Directed Points"), "set_emission_shape", "get_emission_shape"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "emission_sphere_radius", PROPERTY_HINT_RANGE, "0.01,128,0.01"), "set_emission_sphere_radius", "get_emission_sphere_radius"); + ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "emission_box_extents"), "set_emission_box_extents", "get_emission_box_extents"); + ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR3_ARRAY, "emission_points"), "set_emission_points", "get_emission_points"); + ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR3_ARRAY, "emission_normals"), "set_emission_normals", "get_emission_normals"); + ADD_PROPERTY(PropertyInfo(Variant::PACKED_COLOR_ARRAY, "emission_colors"), "set_emission_colors", "get_emission_colors"); + ADD_GROUP("Flags", "flag_"); + ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "flag_align_y"), "set_particle_flag", "get_particle_flag", FLAG_ALIGN_Y_TO_VELOCITY); + ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "flag_rotate_y"), "set_particle_flag", "get_particle_flag", FLAG_ROTATE_Y); + ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "flag_disable_z"), "set_particle_flag", "get_particle_flag", FLAG_DISABLE_Z); + ADD_GROUP("Direction", ""); + ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "direction"), "set_direction", "get_direction"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "spread", PROPERTY_HINT_RANGE, "0,180,0.01"), "set_spread", "get_spread"); + ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "flatness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_flatness", "get_flatness"); + ADD_GROUP("Gravity", ""); + ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "gravity"), "set_gravity", "get_gravity"); + ADD_GROUP("Initial Velocity", "initial_"); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "initial_velocity", PROPERTY_HINT_RANGE, "0,1000,0.01,or_greater"), "set_param", "get_param", PARAM_INITIAL_LINEAR_VELOCITY); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "initial_velocity_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_INITIAL_LINEAR_VELOCITY); + ADD_GROUP("Angular Velocity", "angular_"); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "angular_velocity", PROPERTY_HINT_RANGE, "-720,720,0.01,or_lesser,or_greater"), "set_param", "get_param", PARAM_ANGULAR_VELOCITY); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "angular_velocity_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_ANGULAR_VELOCITY); + ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "angular_velocity_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_ANGULAR_VELOCITY); + ADD_GROUP("Orbit Velocity", "orbit_"); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "orbit_velocity", PROPERTY_HINT_RANGE, "-1000,1000,0.01,or_lesser,or_greater"), "set_param", "get_param", PARAM_ORBIT_VELOCITY); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "orbit_velocity_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_ORBIT_VELOCITY); + ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "orbit_velocity_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_ORBIT_VELOCITY); + ADD_GROUP("Linear Accel", "linear_"); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "linear_accel", PROPERTY_HINT_RANGE, "-100,100,0.01,or_lesser,or_greater"), "set_param", "get_param", PARAM_LINEAR_ACCEL); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "linear_accel_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_LINEAR_ACCEL); + ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "linear_accel_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_LINEAR_ACCEL); + ADD_GROUP("Radial Accel", "radial_"); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "radial_accel", PROPERTY_HINT_RANGE, "-100,100,0.01,or_lesser,or_greater"), "set_param", "get_param", PARAM_RADIAL_ACCEL); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "radial_accel_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_RADIAL_ACCEL); + ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "radial_accel_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_RADIAL_ACCEL); + ADD_GROUP("Tangential Accel", "tangential_"); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "tangential_accel", PROPERTY_HINT_RANGE, "-100,100,0.01,or_lesser,or_greater"), "set_param", "get_param", PARAM_TANGENTIAL_ACCEL); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "tangential_accel_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_TANGENTIAL_ACCEL); + ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "tangential_accel_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_TANGENTIAL_ACCEL); + ADD_GROUP("Damping", ""); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "damping", PROPERTY_HINT_RANGE, "0,100,0.01"), "set_param", "get_param", PARAM_DAMPING); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "damping_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_DAMPING); + ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "damping_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_DAMPING); + ADD_GROUP("Angle", ""); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "angle", PROPERTY_HINT_RANGE, "-720,720,0.1,or_lesser,or_greater"), "set_param", "get_param", PARAM_ANGLE); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "angle_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_ANGLE); + ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "angle_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_ANGLE); + ADD_GROUP("Scale", ""); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "scale_amount", PROPERTY_HINT_RANGE, "0,1000,0.01,or_greater"), "set_param", "get_param", PARAM_SCALE); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "scale_amount_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_SCALE); + ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "scale_amount_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_SCALE); + ADD_GROUP("Color", ""); + ADD_PROPERTY(PropertyInfo(Variant::COLOR, "color"), "set_color", "get_color"); + ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "color_ramp", PROPERTY_HINT_RESOURCE_TYPE, "Gradient"), "set_color_ramp", "get_color_ramp"); + + ADD_GROUP("Hue Variation", "hue_"); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "hue_variation", PROPERTY_HINT_RANGE, "-1,1,0.01"), "set_param", "get_param", PARAM_HUE_VARIATION); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "hue_variation_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_HUE_VARIATION); + ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "hue_variation_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_HUE_VARIATION); + ADD_GROUP("Animation", "anim_"); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "anim_speed", PROPERTY_HINT_RANGE, "0,128,0.01,or_greater"), "set_param", "get_param", PARAM_ANIM_SPEED); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "anim_speed_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_ANIM_SPEED); + ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "anim_speed_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_ANIM_SPEED); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "anim_offset", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param", "get_param", PARAM_ANIM_OFFSET); + ADD_PROPERTYI(PropertyInfo(Variant::FLOAT, "anim_offset_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_ANIM_OFFSET); + ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "anim_offset_curve", PROPERTY_HINT_RESOURCE_TYPE, "Curve"), "set_param_curve", "get_param_curve", PARAM_ANIM_OFFSET); + + BIND_ENUM_CONSTANT(PARAM_INITIAL_LINEAR_VELOCITY); + BIND_ENUM_CONSTANT(PARAM_ANGULAR_VELOCITY); + BIND_ENUM_CONSTANT(PARAM_ORBIT_VELOCITY); + BIND_ENUM_CONSTANT(PARAM_LINEAR_ACCEL); + BIND_ENUM_CONSTANT(PARAM_RADIAL_ACCEL); + BIND_ENUM_CONSTANT(PARAM_TANGENTIAL_ACCEL); + BIND_ENUM_CONSTANT(PARAM_DAMPING); + BIND_ENUM_CONSTANT(PARAM_ANGLE); + BIND_ENUM_CONSTANT(PARAM_SCALE); + BIND_ENUM_CONSTANT(PARAM_HUE_VARIATION); + BIND_ENUM_CONSTANT(PARAM_ANIM_SPEED); + BIND_ENUM_CONSTANT(PARAM_ANIM_OFFSET); + BIND_ENUM_CONSTANT(PARAM_MAX); + + BIND_ENUM_CONSTANT(FLAG_ALIGN_Y_TO_VELOCITY); + BIND_ENUM_CONSTANT(FLAG_ROTATE_Y); + BIND_ENUM_CONSTANT(FLAG_DISABLE_Z); + BIND_ENUM_CONSTANT(FLAG_MAX); + + BIND_ENUM_CONSTANT(EMISSION_SHAPE_POINT); + BIND_ENUM_CONSTANT(EMISSION_SHAPE_SPHERE); + BIND_ENUM_CONSTANT(EMISSION_SHAPE_BOX); + BIND_ENUM_CONSTANT(EMISSION_SHAPE_POINTS); + BIND_ENUM_CONSTANT(EMISSION_SHAPE_DIRECTED_POINTS); + BIND_ENUM_CONSTANT(EMISSION_SHAPE_MAX); +} + +CPUParticles3D::CPUParticles3D() { + + time = 0; + inactive_time = 0; + frame_remainder = 0; + cycle = 0; + redraw = false; + emitting = false; + + set_notify_transform(true); + + multimesh = RenderingServer::get_singleton()->multimesh_create(); + RenderingServer::get_singleton()->multimesh_set_visible_instances(multimesh, 0); + set_base(multimesh); + + set_emitting(true); + set_one_shot(false); + set_amount(8); + set_lifetime(1); + set_fixed_fps(0); + set_fractional_delta(true); + set_pre_process_time(0); + set_explosiveness_ratio(0); + set_randomness_ratio(0); + set_lifetime_randomness(0); + set_use_local_coordinates(true); + + set_draw_order(DRAW_ORDER_INDEX); + set_speed_scale(1); + + set_direction(Vector3(1, 0, 0)); + set_spread(45); + set_flatness(0); + set_param(PARAM_INITIAL_LINEAR_VELOCITY, 0); + set_param(PARAM_ANGULAR_VELOCITY, 0); + set_param(PARAM_ORBIT_VELOCITY, 0); + set_param(PARAM_LINEAR_ACCEL, 0); + set_param(PARAM_RADIAL_ACCEL, 0); + set_param(PARAM_TANGENTIAL_ACCEL, 0); + set_param(PARAM_DAMPING, 0); + set_param(PARAM_ANGLE, 0); + set_param(PARAM_SCALE, 1); + set_param(PARAM_HUE_VARIATION, 0); + set_param(PARAM_ANIM_SPEED, 0); + set_param(PARAM_ANIM_OFFSET, 0); + set_emission_shape(EMISSION_SHAPE_POINT); + set_emission_sphere_radius(1); + set_emission_box_extents(Vector3(1, 1, 1)); + + set_gravity(Vector3(0, -9.8, 0)); + + for (int i = 0; i < PARAM_MAX; i++) { + set_param_randomness(Parameter(i), 0); + } + + for (int i = 0; i < FLAG_MAX; i++) { + flags[i] = false; + } + + can_update = false; + + set_color(Color(1, 1, 1, 1)); +} + +CPUParticles3D::~CPUParticles3D() { + RS::get_singleton()->free(multimesh); +} |