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authorJuan Linietsky <reduzio@gmail.com>2018-07-06 20:21:13 -0300
committerJuan Linietsky <reduzio@gmail.com>2018-07-06 20:21:42 -0300
commit7dcaabaf1989f0e4d6957ca123df522c805ac57a (patch)
tree7099b9650d72b8820950a5662f6db1ad9956654a /scene/3d
parente19388df97743939efd0cfda3dae6de2db393897 (diff)
Support for CPU based particles, which aids compatibility with OpenGL ES 2.0
Diffstat (limited to 'scene/3d')
-rw-r--r--scene/3d/cpu_particles.cpp1338
-rw-r--r--scene/3d/cpu_particles.h256
2 files changed, 1594 insertions, 0 deletions
diff --git a/scene/3d/cpu_particles.cpp b/scene/3d/cpu_particles.cpp
new file mode 100644
index 0000000000..fa20ed0d4c
--- /dev/null
+++ b/scene/3d/cpu_particles.cpp
@@ -0,0 +1,1338 @@
+#include "cpu_particles.h"
+
+#include "scene/3d/camera.h"
+#include "scene/main/viewport.h"
+#include "scene/resources/surface_tool.h"
+#include "servers/visual_server.h"
+
+AABB CPUParticles::get_aabb() const {
+
+ return AABB();
+}
+PoolVector<Face3> CPUParticles::get_faces(uint32_t p_usage_flags) const {
+
+ return PoolVector<Face3>();
+}
+
+void CPUParticles::set_emitting(bool p_emitting) {
+
+ emitting = p_emitting;
+ if (!is_processing_internal()) {
+ set_process_internal(true);
+ if (is_inside_tree()) {
+#ifndef NO_THREADS
+ update_mutex->lock();
+#endif
+ VS::get_singleton()->connect("frame_pre_draw", this, "_update_render_thread");
+#ifndef NO_THREADS
+ update_mutex->unlock();
+#endif
+ }
+ }
+}
+
+void CPUParticles::set_amount(int p_amount) {
+
+ ERR_FAIL_COND(p_amount < 1);
+
+ particles.resize(p_amount);
+ {
+ PoolVector<Particle>::Write w = particles.write();
+
+ for (int i = 0; i < p_amount; i++) {
+ w[i].active = false;
+ }
+ }
+
+ particle_data.resize((12 + 4 + 1) * p_amount);
+ VS::get_singleton()->multimesh_allocate(multimesh, p_amount, VS::MULTIMESH_TRANSFORM_3D, VS::MULTIMESH_COLOR_8BIT, VS::MULTIMESH_CUSTOM_DATA_FLOAT);
+
+ particle_order.resize(p_amount);
+}
+void CPUParticles::set_lifetime(float p_lifetime) {
+
+ ERR_FAIL_COND(p_lifetime <= 0);
+ lifetime = p_lifetime;
+}
+
+void CPUParticles::set_one_shot(bool p_one_shot) {
+
+ one_shot = p_one_shot;
+}
+
+void CPUParticles::set_pre_process_time(float p_time) {
+
+ pre_process_time = p_time;
+}
+void CPUParticles::set_explosiveness_ratio(float p_ratio) {
+
+ explosiveness_ratio = p_ratio;
+}
+void CPUParticles::set_randomness_ratio(float p_ratio) {
+
+ randomness_ratio = p_ratio;
+}
+void CPUParticles::set_use_local_coordinates(bool p_enable) {
+
+ local_coords = p_enable;
+}
+void CPUParticles::set_speed_scale(float p_scale) {
+
+ speed_scale = p_scale;
+}
+
+bool CPUParticles::is_emitting() const {
+
+ return emitting;
+}
+int CPUParticles::get_amount() const {
+
+ return particles.size();
+}
+float CPUParticles::get_lifetime() const {
+
+ return lifetime;
+}
+bool CPUParticles::get_one_shot() const {
+
+ return one_shot;
+}
+
+float CPUParticles::get_pre_process_time() const {
+
+ return pre_process_time;
+}
+float CPUParticles::get_explosiveness_ratio() const {
+
+ return explosiveness_ratio;
+}
+float CPUParticles::get_randomness_ratio() const {
+
+ return randomness_ratio;
+}
+
+bool CPUParticles::get_use_local_coordinates() const {
+
+ return local_coords;
+}
+
+float CPUParticles::get_speed_scale() const {
+
+ return speed_scale;
+}
+
+void CPUParticles::set_draw_order(DrawOrder p_order) {
+
+ draw_order = p_order;
+}
+
+CPUParticles::DrawOrder CPUParticles::get_draw_order() const {
+
+ return draw_order;
+}
+
+void CPUParticles::set_mesh(const Ref<Mesh> &p_mesh) {
+
+ mesh = p_mesh;
+ if (mesh.is_valid()) {
+ VS::get_singleton()->multimesh_set_mesh(multimesh, mesh->get_rid());
+ } else {
+ VS::get_singleton()->multimesh_set_mesh(multimesh, RID());
+ }
+}
+
+Ref<Mesh> CPUParticles::get_mesh() const {
+
+ return mesh;
+}
+
+void CPUParticles::set_fixed_fps(int p_count) {
+ fixed_fps = p_count;
+}
+
+int CPUParticles::get_fixed_fps() const {
+ return fixed_fps;
+}
+
+void CPUParticles::set_fractional_delta(bool p_enable) {
+ fractional_delta = p_enable;
+}
+
+bool CPUParticles::get_fractional_delta() const {
+ return fractional_delta;
+}
+
+String CPUParticles::get_configuration_warning() const {
+
+ String warnings;
+
+ return warnings;
+}
+
+void CPUParticles::restart() {
+
+ time = 0;
+ inactive_time = 0;
+ frame_remainder = 0;
+ cycle = 0;
+
+ {
+ int pc = particles.size();
+ PoolVector<Particle>::Write w = particles.write();
+
+ for (int i = 0; i < pc; i++) {
+ w[i].active = false;
+ }
+ }
+}
+
+void CPUParticles::set_spread(float p_spread) {
+
+ spread = p_spread;
+}
+
+float CPUParticles::get_spread() const {
+
+ return spread;
+}
+
+void CPUParticles::set_flatness(float p_flatness) {
+
+ flatness = p_flatness;
+}
+float CPUParticles::get_flatness() const {
+
+ return flatness;
+}
+
+void CPUParticles::set_param(Parameter p_param, float p_value) {
+
+ ERR_FAIL_INDEX(p_param, PARAM_MAX);
+
+ parameters[p_param] = p_value;
+}
+float CPUParticles::get_param(Parameter p_param) const {
+
+ ERR_FAIL_INDEX_V(p_param, PARAM_MAX, 0);
+
+ return parameters[p_param];
+}
+
+void CPUParticles::set_param_randomness(Parameter p_param, float p_value) {
+
+ ERR_FAIL_INDEX(p_param, PARAM_MAX);
+
+ randomness[p_param] = p_value;
+}
+float CPUParticles::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 CPUParticles::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> CPUParticles::get_param_curve(Parameter p_param) const {
+
+ ERR_FAIL_INDEX_V(p_param, PARAM_MAX, Ref<Curve>());
+
+ return curve_parameters[p_param];
+}
+
+void CPUParticles::set_color(const Color &p_color) {
+
+ color = p_color;
+}
+
+Color CPUParticles::get_color() const {
+
+ return color;
+}
+
+void CPUParticles::set_color_ramp(const Ref<Gradient> &p_ramp) {
+
+ color_ramp = p_ramp;
+}
+
+Ref<Gradient> CPUParticles::get_color_ramp() const {
+
+ return color_ramp;
+}
+
+void CPUParticles::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 CPUParticles::get_particle_flag(Flags p_flag) const {
+ ERR_FAIL_INDEX_V(p_flag, FLAG_MAX, false);
+ return flags[p_flag];
+}
+
+void CPUParticles::set_emission_shape(EmissionShape p_shape) {
+
+ emission_shape = p_shape;
+}
+
+void CPUParticles::set_emission_sphere_radius(float p_radius) {
+
+ emission_sphere_radius = p_radius;
+}
+
+void CPUParticles::set_emission_box_extents(Vector3 p_extents) {
+
+ emission_box_extents = p_extents;
+}
+
+void CPUParticles::set_emission_points(const PoolVector<Vector3> &p_points) {
+
+ emission_points = p_points;
+}
+
+void CPUParticles::set_emission_normals(const PoolVector<Vector3> &p_normals) {
+
+ emission_normals = p_normals;
+}
+
+void CPUParticles::set_emission_colors(const PoolVector<Color> &p_colors) {
+
+ emission_colors = p_colors;
+}
+
+float CPUParticles::get_emission_sphere_radius() const {
+
+ return emission_sphere_radius;
+}
+Vector3 CPUParticles::get_emission_box_extents() const {
+
+ return emission_box_extents;
+}
+PoolVector<Vector3> CPUParticles::get_emission_points() const {
+
+ return emission_points;
+}
+PoolVector<Vector3> CPUParticles::get_emission_normals() const {
+
+ return emission_normals;
+}
+
+PoolVector<Color> CPUParticles::get_emission_colors() const {
+
+ return emission_colors;
+}
+
+CPUParticles::EmissionShape CPUParticles::get_emission_shape() const {
+ return emission_shape;
+}
+void CPUParticles::set_gravity(const Vector3 &p_gravity) {
+
+ gravity = p_gravity;
+}
+
+Vector3 CPUParticles::get_gravity() const {
+
+ return gravity;
+}
+
+void CPUParticles::_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;
+}
+
+float rand_from_seed_m1_p1(uint32_t &seed) {
+ return rand_from_seed(seed) * 2.0 - 1.0;
+}
+
+void CPUParticles::_particles_process(float p_delta) {
+
+ int pcount = particles.size();
+ PoolVector<Particle>::Write w = particles.write();
+
+ Particle *parray = w.ptr();
+
+ float prev_time = time;
+ time += p_delta;
+ if (time > lifetime) {
+ time = Math::fmod(time, lifetime);
+ cycle++;
+ if (one_shot && cycle > 0) {
+ emitting = false;
+ }
+ }
+
+ Transform emission_xform;
+ Basis velocity_xform;
+ if (!local_coords) {
+ emission_xform = get_global_transform();
+ velocity_xform = emission_xform.basis.inverse().transposed();
+ }
+
+ for (int i = 0; i < pcount; i++) {
+
+ Particle &p = parray[i];
+
+ if (!emitting && !p.active)
+ continue;
+
+ float restart_time = float(i) / float(pcount);
+ float local_delta = p_delta;
+
+ if (randomness_ratio > 0.0) {
+ uint32_t seed = cycle;
+ if (restart_time >= time) {
+ seed -= uint32_t(1);
+ }
+ seed *= uint32_t(pcount);
+ seed += uint32_t(i);
+ float random = float(idhash(seed) % uint32_t(65536)) / 65536.0;
+ restart_time += randomness_ratio * random * 1.0 / float(pcount);
+ }
+
+ restart_time *= (1.0 - explosiveness_ratio);
+ 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) * lifetime;
+ }
+ }
+
+ } else if (local_delta > 0.0) {
+ if (restart_time >= prev_time) {
+ restart = true;
+ if (fractional_delta) {
+ local_delta = (1.0 - restart_time + time) * lifetime;
+ }
+
+ } else if (restart_time < time) {
+ restart = true;
+ if (fractional_delta) {
+ local_delta = (time - restart_time) * lifetime;
+ }
+ }
+ }
+
+ 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();
+
+ float angle1_rad;
+ float angle2_rad;
+
+ if (flags[FLAG_DISABLE_Z]) {
+
+ angle1_rad = (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
+ angle1_rad = (Math::randf() * 2.0 - 1.0) * Math_PI * spread / 180.0;
+ angle2_rad = (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 / Math::sqrt(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.base_color = Color(1, 1, 1, 1);
+
+ switch (emission_shape) {
+ case EMISSION_SHAPE_POINT: {
+ //do none
+ } break;
+ case EMISSION_SHAPE_SPHERE: {
+ p.transform.origin = Vector3(Math::randf() * 2.0 - 1.0, Math::randf() * 2.0 - 1.0, Math::randf() * 2.0 - 1.0).normalized() * emission_sphere_radius;
+ } 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;
+ }
+
+ 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.velocity.z = 0.0;
+ }
+
+ } else if (!p.active) {
+ continue;
+ } 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_INITIAL_ORBIT_VELOCITY].is_valid()) {
+ tex_orbit_velocity = curve_parameters[PARAM_INITIAL_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 pos = p.transform.origin;
+ if (flags[FLAG_DISABLE_Z]) {
+ pos.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 = pos - 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]) {
+
+ Vector3 yx = Vector3(diff.y, 0, diff.x);
+ force += yx.length() > 0.0 ? (yx * Vector3(-1.0, 0, 1.0)) * ((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 0
+ if (flags[FLAG_DISABLE_Z]) {
+
+ float orbit_amount = (orbit_velocity + tex_orbit_velocity) * mix(1.0, rand_from_seed(alt_seed), orbit_velocity_random);
+ if (orbit_amount != 0.0) {
+ float ang = orbit_amount * DELTA * pi * 2.0;
+ mat2 rot = mat2(vec2(cos(ang), -sin(ang)), vec2(sin(ang), cos(ang)));
+ TRANSFORM[3].xy -= diff.xy;
+ TRANSFORM[3].xy += rot * diff.xy;
+ }
+ }
+#endif
+ 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
+ if (flags[FLAG_ANIM_LOOP]) {
+ p.custom[2] = Math::fmod(p.custom[2], 1.0f); //loop
+
+ } else {
+ p.custom[2] = CLAMP(p.custom[2], 0.0f, 1.0); //0 to 1 only
+ }
+ }
+ //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 = Math::lerp(parameters[PARAM_SCALE] * tex_scale, 1.0f, p.scale_rand * randomness[PARAM_SCALE]);
+ if (base_scale == 0.0) 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 CPUParticles::_update_particle_data_buffer() {
+#ifndef NO_THREADS
+ update_mutex->lock();
+#endif
+
+ {
+
+ int pc = particles.size();
+
+ PoolVector<int>::Write ow;
+ int *order = NULL;
+
+ PoolVector<float>::Write w = particle_data.write();
+ PoolVector<Particle>::Read r = particles.read();
+ float *ptr = w.ptr();
+
+ Transform un_transform;
+ if (!local_coords) {
+ un_transform = get_global_transform().affine_inverse();
+ }
+
+ if (draw_order != DRAW_ORDER_INDEX) {
+ ow = particle_order.write();
+ order = ow.ptr();
+
+ for (int i = 0; i < pc; i++) {
+ order[i] = i;
+ }
+ if (draw_order == DRAW_ORDER_LIFETIME) {
+ SortArray<int, SortLifetime> sorter;
+ sorter.compare.particles = r.ptr();
+ sorter.sort(order, pc);
+ } else if (draw_order == DRAW_ORDER_VIEW_DEPTH) {
+ Camera *c = get_viewport()->get_camera();
+ if (c) {
+ Vector3 dir = c->get_global_transform().basis.get_axis(2); //far away to close
+
+ if (local_coords) {
+ dir = un_transform.basis.xform(dir).normalized();
+ }
+
+ SortArray<int, SortAxis> sorter;
+ sorter.compare.particles = r.ptr();
+ 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 = un_transform * t;
+ }
+
+ // print_line(" particle " + itos(i) + ": " + String(r[idx].active ? "[x]" : "[ ]") + "\n\txform " + r[idx].transform + "\n\t" + r[idx].velocity + "\n\tcolor: " + r[idx].color);
+
+ 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;
+ uint8_t *data8 = (uint8_t *)&ptr[12];
+ data8[0] = CLAMP(c.r * 255.0, 0, 255);
+ data8[1] = CLAMP(c.g * 255.0, 0, 255);
+ data8[2] = CLAMP(c.b * 255.0, 0, 255);
+ data8[3] = CLAMP(c.a * 255.0, 0, 255);
+
+ ptr[13] = r[idx].custom[0];
+ ptr[14] = r[idx].custom[1];
+ ptr[15] = r[idx].custom[2];
+ ptr[16] = r[idx].custom[3];
+
+ ptr += 17;
+ }
+ }
+
+#ifndef NO_THREADS
+ update_mutex->unlock();
+#endif
+}
+
+void CPUParticles::_update_render_thread() {
+
+#ifndef NO_THREADS
+ update_mutex->lock();
+#endif
+
+ VS::get_singleton()->multimesh_set_as_bulk_array(multimesh, particle_data);
+
+#ifndef NO_THREADS
+ update_mutex->unlock();
+#endif
+}
+
+void CPUParticles::_notification(int p_what) {
+
+ if (p_what == NOTIFICATION_ENTER_TREE) {
+ if (is_processing_internal()) {
+
+#ifndef NO_THREADS
+ update_mutex->lock();
+#endif
+ VS::get_singleton()->connect("frame_pre_draw", this, "_update_render_thread");
+#ifndef NO_THREADS
+ update_mutex->unlock();
+#endif
+ }
+ }
+
+ if (p_what == NOTIFICATION_EXIT_TREE) {
+ if (is_processing_internal()) {
+
+#ifndef NO_THREADS
+ update_mutex->lock();
+#endif
+ VS::get_singleton()->disconnect("frame_pre_draw", this, "_update_render_thread");
+#ifndef NO_THREADS
+ update_mutex->unlock();
+#endif
+ }
+ }
+
+ if (p_what == NOTIFICATION_PAUSED || p_what == NOTIFICATION_UNPAUSED) {
+ }
+
+ if (p_what == NOTIFICATION_INTERNAL_PROCESS) {
+
+ if (particles.size() == 0)
+ 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);
+#ifndef NO_THREADS
+ update_mutex->lock();
+#endif
+ VS::get_singleton()->disconnect("frame_pre_draw", this, "_update_render_thread");
+#ifndef NO_THREADS
+ update_mutex->unlock();
+#endif
+ //reset variables
+ time = 0;
+ inactive_time = 0;
+ frame_remainder = 0;
+ cycle = 0;
+ return;
+ }
+ }
+
+ 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);
+ 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);
+ todo -= decr;
+ }
+
+ frame_remainder = todo;
+
+ } else {
+ _particles_process(delta);
+ }
+
+ _update_particle_data_buffer();
+ }
+}
+
+void CPUParticles::_bind_methods() {
+
+ ClassDB::bind_method(D_METHOD("set_emitting", "emitting"), &CPUParticles::set_emitting);
+ ClassDB::bind_method(D_METHOD("set_amount", "amount"), &CPUParticles::set_amount);
+ ClassDB::bind_method(D_METHOD("set_lifetime", "secs"), &CPUParticles::set_lifetime);
+ ClassDB::bind_method(D_METHOD("set_one_shot", "enable"), &CPUParticles::set_one_shot);
+ ClassDB::bind_method(D_METHOD("set_pre_process_time", "secs"), &CPUParticles::set_pre_process_time);
+ ClassDB::bind_method(D_METHOD("set_explosiveness_ratio", "ratio"), &CPUParticles::set_explosiveness_ratio);
+ ClassDB::bind_method(D_METHOD("set_randomness_ratio", "ratio"), &CPUParticles::set_randomness_ratio);
+ ClassDB::bind_method(D_METHOD("set_use_local_coordinates", "enable"), &CPUParticles::set_use_local_coordinates);
+ ClassDB::bind_method(D_METHOD("set_fixed_fps", "fps"), &CPUParticles::set_fixed_fps);
+ ClassDB::bind_method(D_METHOD("set_fractional_delta", "enable"), &CPUParticles::set_fractional_delta);
+ ClassDB::bind_method(D_METHOD("set_speed_scale", "scale"), &CPUParticles::set_speed_scale);
+
+ ClassDB::bind_method(D_METHOD("is_emitting"), &CPUParticles::is_emitting);
+ ClassDB::bind_method(D_METHOD("get_amount"), &CPUParticles::get_amount);
+ ClassDB::bind_method(D_METHOD("get_lifetime"), &CPUParticles::get_lifetime);
+ ClassDB::bind_method(D_METHOD("get_one_shot"), &CPUParticles::get_one_shot);
+ ClassDB::bind_method(D_METHOD("get_pre_process_time"), &CPUParticles::get_pre_process_time);
+ ClassDB::bind_method(D_METHOD("get_explosiveness_ratio"), &CPUParticles::get_explosiveness_ratio);
+ ClassDB::bind_method(D_METHOD("get_randomness_ratio"), &CPUParticles::get_randomness_ratio);
+ ClassDB::bind_method(D_METHOD("get_use_local_coordinates"), &CPUParticles::get_use_local_coordinates);
+ ClassDB::bind_method(D_METHOD("get_fixed_fps"), &CPUParticles::get_fixed_fps);
+ ClassDB::bind_method(D_METHOD("get_fractional_delta"), &CPUParticles::get_fractional_delta);
+ ClassDB::bind_method(D_METHOD("get_speed_scale"), &CPUParticles::get_speed_scale);
+
+ ClassDB::bind_method(D_METHOD("set_draw_order", "order"), &CPUParticles::set_draw_order);
+
+ ClassDB::bind_method(D_METHOD("get_draw_order"), &CPUParticles::get_draw_order);
+
+ ClassDB::bind_method(D_METHOD("set_mesh", "mesh"), &CPUParticles::set_mesh);
+ ClassDB::bind_method(D_METHOD("get_mesh"), &CPUParticles::get_mesh);
+
+ ClassDB::bind_method(D_METHOD("restart"), &CPUParticles::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::REAL, "lifetime", PROPERTY_HINT_EXP_RANGE, "0.01,600.0,0.01"), "set_lifetime", "get_lifetime");
+ ADD_PROPERTY(PropertyInfo(Variant::BOOL, "one_shot"), "set_one_shot", "get_one_shot");
+ ADD_PROPERTY(PropertyInfo(Variant::REAL, "preprocess", PROPERTY_HINT_EXP_RANGE, "0.00,600.0,0.01"), "set_pre_process_time", "get_pre_process_time");
+ ADD_PROPERTY(PropertyInfo(Variant::REAL, "speed_scale", PROPERTY_HINT_RANGE, "0.01,64,0.01"), "set_speed_scale", "get_speed_scale");
+ ADD_PROPERTY(PropertyInfo(Variant::REAL, "explosiveness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_explosiveness_ratio", "get_explosiveness_ratio");
+ ADD_PROPERTY(PropertyInfo(Variant::REAL, "randomness", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_randomness_ratio", "get_randomness_ratio");
+ 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_spread", "degrees"), &CPUParticles::set_spread);
+ ClassDB::bind_method(D_METHOD("get_spread"), &CPUParticles::get_spread);
+
+ ClassDB::bind_method(D_METHOD("set_flatness", "amount"), &CPUParticles::set_flatness);
+ ClassDB::bind_method(D_METHOD("get_flatness"), &CPUParticles::get_flatness);
+
+ ClassDB::bind_method(D_METHOD("set_param", "param", "value"), &CPUParticles::set_param);
+ ClassDB::bind_method(D_METHOD("get_param", "param"), &CPUParticles::get_param);
+
+ ClassDB::bind_method(D_METHOD("set_param_randomness", "param", "randomness"), &CPUParticles::set_param_randomness);
+ ClassDB::bind_method(D_METHOD("get_param_randomness", "param"), &CPUParticles::get_param_randomness);
+
+ ClassDB::bind_method(D_METHOD("set_param_curve", "param", "curve"), &CPUParticles::set_param_curve);
+ ClassDB::bind_method(D_METHOD("get_param_curve", "param"), &CPUParticles::get_param_curve);
+
+ ClassDB::bind_method(D_METHOD("set_color", "color"), &CPUParticles::set_color);
+ ClassDB::bind_method(D_METHOD("get_color"), &CPUParticles::get_color);
+
+ ClassDB::bind_method(D_METHOD("set_color_ramp", "ramp"), &CPUParticles::set_color_ramp);
+ ClassDB::bind_method(D_METHOD("get_color_ramp"), &CPUParticles::get_color_ramp);
+
+ ClassDB::bind_method(D_METHOD("set_particle_flag", "flag", "enable"), &CPUParticles::set_particle_flag);
+ ClassDB::bind_method(D_METHOD("get_particle_flag", "flag"), &CPUParticles::get_particle_flag);
+
+ ClassDB::bind_method(D_METHOD("set_emission_shape", "shape"), &CPUParticles::set_emission_shape);
+ ClassDB::bind_method(D_METHOD("get_emission_shape"), &CPUParticles::get_emission_shape);
+
+ ClassDB::bind_method(D_METHOD("set_emission_sphere_radius", "radius"), &CPUParticles::set_emission_sphere_radius);
+ ClassDB::bind_method(D_METHOD("get_emission_sphere_radius"), &CPUParticles::get_emission_sphere_radius);
+
+ ClassDB::bind_method(D_METHOD("set_emission_box_extents", "extents"), &CPUParticles::set_emission_box_extents);
+ ClassDB::bind_method(D_METHOD("get_emission_box_extents"), &CPUParticles::get_emission_box_extents);
+
+ ClassDB::bind_method(D_METHOD("set_emission_points", "array"), &CPUParticles::set_emission_points);
+ ClassDB::bind_method(D_METHOD("get_emission_points"), &CPUParticles::get_emission_points);
+
+ ClassDB::bind_method(D_METHOD("set_emission_normals", "array"), &CPUParticles::set_emission_normals);
+ ClassDB::bind_method(D_METHOD("get_emission_normals"), &CPUParticles::get_emission_normals);
+
+ ClassDB::bind_method(D_METHOD("set_emission_colors", "array"), &CPUParticles::set_emission_colors);
+ ClassDB::bind_method(D_METHOD("get_emission_colors"), &CPUParticles::get_emission_colors);
+
+ ClassDB::bind_method(D_METHOD("get_gravity"), &CPUParticles::get_gravity);
+ ClassDB::bind_method(D_METHOD("set_gravity", "accel_vec"), &CPUParticles::set_gravity);
+
+ ClassDB::bind_method(D_METHOD("_update_render_thread"), &CPUParticles::_update_render_thread);
+
+ 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::REAL, "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::POOL_VECTOR3_ARRAY, "emission_points"), "set_emission_points", "get_emission_points");
+ ADD_PROPERTY(PropertyInfo(Variant::POOL_VECTOR3_ARRAY, "emission_normals"), "set_emission_normals", "get_emission_normals");
+ ADD_PROPERTY(PropertyInfo(Variant::POOL_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("Spread", "");
+ ADD_PROPERTY(PropertyInfo(Variant::REAL, "spread", PROPERTY_HINT_RANGE, "0,180,0.01"), "set_spread", "get_spread");
+ ADD_PROPERTY(PropertyInfo(Variant::REAL, "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::REAL, "initial_velocity", PROPERTY_HINT_RANGE, "0,1000,0.01,or_greater"), "set_param", "get_param", PARAM_INITIAL_LINEAR_VELOCITY);
+ ADD_PROPERTYI(PropertyInfo(Variant::REAL, "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::REAL, "angular_velocity", PROPERTY_HINT_RANGE, "-360,360,0.01"), "set_param", "get_param", PARAM_ANGULAR_VELOCITY);
+ ADD_PROPERTYI(PropertyInfo(Variant::REAL, "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::REAL, "orbit_velocity", PROPERTY_HINT_RANGE, "-1000,1000,0.01,or_lesser,or_greater"), "set_param", "get_param", PARAM_ORBIT_VELOCITY);
+ ADD_PROPERTYI(PropertyInfo(Variant::REAL, "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::REAL, "linear_accel", PROPERTY_HINT_RANGE, "-100,100,0.01,or_lesser,or_greater"), "set_param", "get_param", PARAM_LINEAR_ACCEL);
+ ADD_PROPERTYI(PropertyInfo(Variant::REAL, "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::REAL, "radial_accel", PROPERTY_HINT_RANGE, "-100,100,0.01,or_lesser,or_greater"), "set_param", "get_param", PARAM_RADIAL_ACCEL);
+ ADD_PROPERTYI(PropertyInfo(Variant::REAL, "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::REAL, "tangential_accel", PROPERTY_HINT_RANGE, "-100,100,0.01,or_lesser,or_greater"), "set_param", "get_param", PARAM_TANGENTIAL_ACCEL);
+ ADD_PROPERTYI(PropertyInfo(Variant::REAL, "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::REAL, "damping", PROPERTY_HINT_RANGE, "0,100,0.01"), "set_param", "get_param", PARAM_DAMPING);
+ ADD_PROPERTYI(PropertyInfo(Variant::REAL, "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::REAL, "angle", PROPERTY_HINT_RANGE, "-720,720,0.1,or_lesser,or_greater"), "set_param", "get_param", PARAM_ANGLE);
+ ADD_PROPERTYI(PropertyInfo(Variant::REAL, "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::REAL, "scale", PROPERTY_HINT_RANGE, "0,1000,0.01,or_greater"), "set_param", "get_param", PARAM_SCALE);
+ ADD_PROPERTYI(PropertyInfo(Variant::REAL, "scale_random", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param_randomness", "get_param_randomness", PARAM_SCALE);
+ ADD_PROPERTYI(PropertyInfo(Variant::OBJECT, "scale_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, "GradientTexture"), "set_color_ramp", "get_color_ramp");
+
+ ADD_GROUP("Hue Variation", "hue_");
+ ADD_PROPERTYI(PropertyInfo(Variant::REAL, "hue_variation", PROPERTY_HINT_RANGE, "-1,1,0.1"), "set_param", "get_param", PARAM_HUE_VARIATION);
+ ADD_PROPERTYI(PropertyInfo(Variant::REAL, "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::REAL, "anim_speed", PROPERTY_HINT_RANGE, "0,128,0.01,or_greater"), "set_param", "get_param", PARAM_ANIM_SPEED);
+ ADD_PROPERTYI(PropertyInfo(Variant::REAL, "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::REAL, "anim_offset", PROPERTY_HINT_RANGE, "0,1,0.01"), "set_param", "get_param", PARAM_ANIM_OFFSET);
+ ADD_PROPERTYI(PropertyInfo(Variant::REAL, "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);
+ ADD_PROPERTYI(PropertyInfo(Variant::BOOL, "anim_loop"), "set_particle_flag", "get_particle_flag", FLAG_ANIM_LOOP);
+
+ 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_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);
+}
+
+CPUParticles::CPUParticles() {
+
+ time = 0;
+ inactive_time = 0;
+ frame_remainder = 0;
+ cycle = 0;
+
+ multimesh = VisualServer::get_singleton()->multimesh_create();
+ 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_use_local_coordinates(true);
+
+ set_draw_order(DRAW_ORDER_INDEX);
+ set_speed_scale(1);
+
+ set_spread(45);
+ set_flatness(0);
+ set_param(PARAM_INITIAL_LINEAR_VELOCITY, 1);
+ //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;
+ }
+
+ set_color(Color(1, 1, 1, 1));
+
+#ifndef NO_THREADS
+ update_mutex = Mutex::create();
+#endif
+}
+
+CPUParticles::~CPUParticles() {
+ VS::get_singleton()->free(multimesh);
+
+#ifndef NO_THREADS
+ memdelete(update_mutex);
+#endif
+}
diff --git a/scene/3d/cpu_particles.h b/scene/3d/cpu_particles.h
new file mode 100644
index 0000000000..2ed7505863
--- /dev/null
+++ b/scene/3d/cpu_particles.h
@@ -0,0 +1,256 @@
+#ifndef CPU_PARTICLES_H
+#define CPU_PARTICLES_H
+#include "rid.h"
+#include "scene/3d/visual_instance.h"
+#include "scene/main/timer.h"
+#include "scene/resources/material.h"
+
+/**
+ @author Juan Linietsky <reduzio@gmail.com>
+*/
+
+class CPUParticles : public GeometryInstance {
+private:
+ GDCLASS(CPUParticles, GeometryInstance);
+
+public:
+ enum DrawOrder {
+ DRAW_ORDER_INDEX,
+ DRAW_ORDER_LIFETIME,
+ DRAW_ORDER_VIEW_DEPTH,
+ };
+
+ enum Parameter {
+
+ PARAM_INITIAL_LINEAR_VELOCITY,
+ PARAM_ANGULAR_VELOCITY,
+ //PARAM_ORBIT_VELOCITY,
+ PARAM_LINEAR_ACCEL,
+ PARAM_RADIAL_ACCEL,
+ PARAM_TANGENTIAL_ACCEL,
+ PARAM_DAMPING,
+ PARAM_ANGLE,
+ PARAM_SCALE,
+ PARAM_HUE_VARIATION,
+ PARAM_ANIM_SPEED,
+ PARAM_ANIM_OFFSET,
+ PARAM_MAX
+ };
+
+ enum Flags {
+ FLAG_ALIGN_Y_TO_VELOCITY,
+ FLAG_ROTATE_Y,
+ FLAG_DISABLE_Z,
+ FLAG_ANIM_LOOP,
+ FLAG_MAX
+ };
+
+ enum EmissionShape {
+ EMISSION_SHAPE_POINT,
+ EMISSION_SHAPE_SPHERE,
+ EMISSION_SHAPE_BOX,
+ EMISSION_SHAPE_POINTS,
+ EMISSION_SHAPE_DIRECTED_POINTS,
+ };
+
+private:
+ bool emitting;
+
+ struct Particle {
+ Transform transform;
+ Color color;
+ float custom[4];
+ Vector3 velocity;
+ bool active;
+ float angle_rand;
+ float scale_rand;
+ float hue_rot_rand;
+ float anim_offset_rand;
+ float time;
+ Color base_color;
+
+ uint32_t seed;
+ };
+
+ float time;
+ float inactive_time;
+ float frame_remainder;
+ int cycle;
+
+ RID multimesh;
+
+ PoolVector<Particle> particles;
+ PoolVector<float> particle_data;
+ PoolVector<int> particle_order;
+
+ struct SortLifetime {
+ const Particle *particles;
+
+ bool operator()(int p_a, int p_b) const {
+ return particles[p_a].time < particles[p_b].time;
+ }
+ };
+
+ struct SortAxis {
+ const Particle *particles;
+ Vector3 axis;
+ bool operator()(int p_a, int p_b) const {
+
+ return axis.dot(particles[p_a].transform.origin) < axis.dot(particles[p_b].transform.origin);
+ }
+ };
+
+ //
+
+ bool one_shot;
+
+ float lifetime;
+ float pre_process_time;
+ float explosiveness_ratio;
+ float randomness_ratio;
+ float speed_scale;
+ bool local_coords;
+ int fixed_fps;
+ bool fractional_delta;
+
+ DrawOrder draw_order;
+
+ Ref<Mesh> mesh;
+
+ ////////
+
+ float spread;
+ float flatness;
+
+ float parameters[PARAM_MAX];
+ float randomness[PARAM_MAX];
+
+ Ref<Curve> curve_parameters[PARAM_MAX];
+ Color color;
+ Ref<Gradient> color_ramp;
+
+ bool flags[FLAG_MAX];
+
+ EmissionShape emission_shape;
+ float emission_sphere_radius;
+ Vector3 emission_box_extents;
+ PoolVector<Vector3> emission_points;
+ PoolVector<Vector3> emission_normals;
+ PoolVector<Color> emission_colors;
+ int emission_point_count;
+
+ bool anim_loop;
+ Vector3 gravity;
+
+ void _particles_process(float p_delta);
+ void _update_particle_data_buffer();
+
+ Mutex *update_mutex;
+
+ void _update_render_thread();
+
+protected:
+ static void _bind_methods();
+ void _notification(int p_what);
+ virtual void _validate_property(PropertyInfo &property) const;
+
+public:
+ AABB get_aabb() const;
+ PoolVector<Face3> get_faces(uint32_t p_usage_flags) const;
+
+ void set_emitting(bool p_emitting);
+ void set_amount(int p_amount);
+ void set_lifetime(float p_lifetime);
+ void set_one_shot(bool p_one_shot);
+ void set_pre_process_time(float p_time);
+ void set_explosiveness_ratio(float p_ratio);
+ void set_randomness_ratio(float p_ratio);
+ void set_visibility_aabb(const AABB &p_aabb);
+ void set_use_local_coordinates(bool p_enable);
+ void set_speed_scale(float p_scale);
+
+ bool is_emitting() const;
+ int get_amount() const;
+ float get_lifetime() const;
+ bool get_one_shot() const;
+ float get_pre_process_time() const;
+ float get_explosiveness_ratio() const;
+ float get_randomness_ratio() const;
+ AABB get_visibility_aabb() const;
+ bool get_use_local_coordinates() const;
+ float get_speed_scale() const;
+
+ void set_fixed_fps(int p_count);
+ int get_fixed_fps() const;
+
+ void set_fractional_delta(bool p_enable);
+ bool get_fractional_delta() const;
+
+ void set_draw_order(DrawOrder p_order);
+ DrawOrder get_draw_order() const;
+
+ void set_draw_passes(int p_count);
+ int get_draw_passes() const;
+
+ void set_mesh(const Ref<Mesh> &p_mesh);
+ Ref<Mesh> get_mesh() const;
+
+ ///////////////////
+
+ void set_spread(float p_spread);
+ float get_spread() const;
+
+ void set_flatness(float p_flatness);
+ float get_flatness() const;
+
+ void set_param(Parameter p_param, float p_value);
+ float get_param(Parameter p_param) const;
+
+ void set_param_randomness(Parameter p_param, float p_value);
+ float get_param_randomness(Parameter p_param) const;
+
+ void set_param_curve(Parameter p_param, const Ref<Curve> &p_curve);
+ Ref<Curve> get_param_curve(Parameter p_param) const;
+
+ void set_color(const Color &p_color);
+ Color get_color() const;
+
+ void set_color_ramp(const Ref<Gradient> &p_texture);
+ Ref<Gradient> get_color_ramp() const;
+
+ void set_particle_flag(Flags p_flag, bool p_enable);
+ bool get_particle_flag(Flags p_flag) const;
+
+ void set_emission_shape(EmissionShape p_shape);
+ void set_emission_sphere_radius(float p_radius);
+ void set_emission_box_extents(Vector3 p_extents);
+ void set_emission_points(const PoolVector<Vector3> &p_points);
+ void set_emission_normals(const PoolVector<Vector3> &p_normals);
+ void set_emission_colors(const PoolVector<Color> &p_colors);
+ void set_emission_point_count(int p_count);
+
+ EmissionShape get_emission_shape() const;
+ float get_emission_sphere_radius() const;
+ Vector3 get_emission_box_extents() const;
+ PoolVector<Vector3> get_emission_points() const;
+ PoolVector<Vector3> get_emission_normals() const;
+ PoolVector<Color> get_emission_colors() const;
+ int get_emission_point_count() const;
+
+ void set_gravity(const Vector3 &p_gravity);
+ Vector3 get_gravity() const;
+
+ virtual String get_configuration_warning() const;
+
+ void restart();
+
+ CPUParticles();
+ ~CPUParticles();
+};
+
+VARIANT_ENUM_CAST(CPUParticles::DrawOrder)
+VARIANT_ENUM_CAST(CPUParticles::Parameter)
+VARIANT_ENUM_CAST(CPUParticles::Flags)
+VARIANT_ENUM_CAST(CPUParticles::EmissionShape)
+
+#endif // CPU_PARTICLES_H