diff options
author | Juan Linietsky <reduzio@gmail.com> | 2018-07-06 20:21:13 -0300 |
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committer | Juan Linietsky <reduzio@gmail.com> | 2018-07-06 20:21:42 -0300 |
commit | 7dcaabaf1989f0e4d6957ca123df522c805ac57a (patch) | |
tree | 7099b9650d72b8820950a5662f6db1ad9956654a /scene/3d | |
parent | e19388df97743939efd0cfda3dae6de2db393897 (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.cpp | 1338 | ||||
-rw-r--r-- | scene/3d/cpu_particles.h | 256 |
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 |