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Diffstat (limited to 'scene/2d/cpu_particles_2d.cpp')
-rw-r--r--scene/2d/cpu_particles_2d.cpp126
1 files changed, 78 insertions, 48 deletions
diff --git a/scene/2d/cpu_particles_2d.cpp b/scene/2d/cpu_particles_2d.cpp
index ff27e0a29a..a8d72bb774 100644
--- a/scene/2d/cpu_particles_2d.cpp
+++ b/scene/2d/cpu_particles_2d.cpp
@@ -29,8 +29,9 @@
/*************************************************************************/
#include "cpu_particles_2d.h"
-#include "particles_2d.h"
+
#include "scene/2d/canvas_item.h"
+#include "scene/2d/particles_2d.h"
#include "scene/resources/particles_material.h"
#include "servers/visual_server.h"
@@ -85,7 +86,9 @@ void CPUParticles2D::set_randomness_ratio(float p_ratio) {
void CPUParticles2D::set_use_local_coordinates(bool p_enable) {
local_coords = p_enable;
+ set_notify_transform(!p_enable);
}
+
void CPUParticles2D::set_speed_scale(float p_scale) {
speed_scale = p_scale;
@@ -324,9 +327,9 @@ void CPUParticles2D::set_param_curve(Parameter p_param, const Ref<Curve> &p_curv
case PARAM_ANGULAR_VELOCITY: {
_adjust_curve_range(p_curve, -360, 360);
} break;
- /*case PARAM_ORBIT_VELOCITY: {
+ case PARAM_ORBIT_VELOCITY: {
_adjust_curve_range(p_curve, -500, 500);
- } break;*/
+ } break;
case PARAM_LINEAR_ACCEL: {
_adjust_curve_range(p_curve, -200, 200);
} break;
@@ -466,7 +469,7 @@ void CPUParticles2D::_validate_property(PropertyInfo &property) const {
property.usage = 0;
}
- if (property.name == "emission_sphere_radius" && emission_shape != EMISSION_SHAPE_CIRCLE) {
+ if (property.name == "emission_sphere_radius" && emission_shape != EMISSION_SHAPE_SPHERE) {
property.usage = 0;
}
@@ -489,12 +492,6 @@ void CPUParticles2D::_validate_property(PropertyInfo &property) const {
if (property.name == "emission_colors" && emission_shape != EMISSION_SHAPE_POINTS && 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) {
@@ -545,6 +542,8 @@ void CPUParticles2D::_particles_process(float p_delta) {
velocity_xform[2] = Vector2();
}
+ float system_phase = time / lifetime;
+
for (int i = 0; i < pcount; i++) {
Particle &p = parray[i];
@@ -552,21 +551,26 @@ void CPUParticles2D::_particles_process(float p_delta) {
if (!emitting && !p.active)
continue;
- float restart_time = (float(i) / float(pcount)) * lifetime;
float local_delta = p_delta;
+ // The phase is a ratio between 0 (birth) and 1 (end of life) for each particle.
+ // While we use time in tests later on, for randomness we use the phase as done in the
+ // original shader code, and we later multiply by lifetime to get the time.
+ float restart_phase = float(i) / float(pcount);
+
if (randomness_ratio > 0.0) {
uint32_t seed = cycle;
- if (restart_time >= time) {
+ if (restart_phase >= system_phase) {
seed -= uint32_t(1);
}
seed *= uint32_t(pcount);
seed += uint32_t(i);
float random = float(idhash(seed) % uint32_t(65536)) / 65536.0;
- restart_time += randomness_ratio * random * 1.0 / float(pcount);
+ restart_phase += randomness_ratio * random * 1.0 / float(pcount);
}
- restart_time *= (1.0 - explosiveness_ratio);
+ restart_phase *= (1.0 - explosiveness_ratio);
+ float restart_time = restart_phase * lifetime;
bool restart = false;
if (time > prev_time) {
@@ -643,8 +647,9 @@ void CPUParticles2D::_particles_process(float p_delta) {
case EMISSION_SHAPE_POINT: {
//do none
} break;
- case EMISSION_SHAPE_CIRCLE: {
- p.transform[2] = Vector2(Math::randf() * 2.0 - 1.0, Math::randf() * 2.0 - 1.0).normalized() * emission_sphere_radius;
+ case EMISSION_SHAPE_SPHERE: {
+ Vector3 sphere_shape = Vector3(Math::randf() * 2.0 - 1.0, Math::randf() * 2.0 - 1.0, Math::randf() * 2.0 - 1.0).normalized() * emission_sphere_radius;
+ p.transform[2] = Vector2(sphere_shape.x, sphere_shape.y);
} break;
case EMISSION_SHAPE_RECTANGLE: {
p.transform[2] = Vector2(Math::randf() * 2.0 - 1.0, Math::randf() * 2.0 - 1.0) * emission_rect_extents;
@@ -688,16 +693,12 @@ void CPUParticles2D::_particles_process(float p_delta) {
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_orbit_velocity = 0.0;
+ if (curve_parameters[PARAM_ORBIT_VELOCITY].is_valid()) {
+ tex_orbit_velocity = curve_parameters[PARAM_ORBIT_VELOCITY]->interpolate(p.custom[1]);
}
-*/
+
float tex_angular_velocity = 0.0;
if (curve_parameters[PARAM_ANGULAR_VELOCITY].is_valid()) {
tex_angular_velocity = curve_parameters[PARAM_ANGULAR_VELOCITY]->interpolate(p.custom[1]);
@@ -748,22 +749,19 @@ void CPUParticles2D::_particles_process(float p_delta) {
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]) : Vector2();
//apply tangential acceleration;
Vector2 yx = Vector2(diff.y, diff.x);
- force += yx.length() > 0.0 ? (yx * Vector2(-1.0, 1.0)) * ((parameters[PARAM_TANGENTIAL_ACCEL] + tex_tangential_accel) * Math::lerp(1.0f, rand_from_seed(alt_seed), randomness[PARAM_TANGENTIAL_ACCEL])) : Vector2();
+ force += yx.length() > 0.0 ? (yx * Vector2(-1.0, 1.0)).normalized() * ((parameters[PARAM_TANGENTIAL_ACCEL] + tex_tangential_accel) * Math::lerp(1.0f, rand_from_seed(alt_seed), randomness[PARAM_TANGENTIAL_ACCEL])) : Vector2();
//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;
- }
+ float orbit_amount = (parameters[PARAM_ORBIT_VELOCITY] + tex_orbit_velocity) * Math::lerp(1.0f, rand_from_seed(alt_seed), randomness[PARAM_ORBIT_VELOCITY]);
+ if (orbit_amount != 0.0) {
+ float ang = orbit_amount * local_delta * Math_PI * 2.0;
+ // Not sure why the ParticlesMaterial code uses a clockwise rotation matrix,
+ // but we use -ang here to reproduce its behavior.
+ Transform2D rot = Transform2D(-ang, Vector2());
+ p.transform[2] -= diff;
+ p.transform[2] += rot.basis_xform(diff);
}
-#endif
if (curve_parameters[PARAM_INITIAL_LINEAR_VELOCITY].is_valid()) {
p.velocity = p.velocity.normalized() * tex_linear_velocity;
}
@@ -865,11 +863,6 @@ void CPUParticles2D::_update_particle_data_buffer() {
PoolVector<Particle>::Read r = particles.read();
float *ptr = w.ptr();
- Transform2D 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();
@@ -891,7 +884,7 @@ void CPUParticles2D::_update_particle_data_buffer() {
Transform2D t = r[idx].transform;
if (!local_coords) {
- t = un_transform * t;
+ t = inv_emission_transform * t;
}
if (r[idx].active) {
@@ -1060,6 +1053,42 @@ void CPUParticles2D::_notification(int p_what) {
_update_particle_data_buffer();
}
+
+ if (p_what == NOTIFICATION_TRANSFORM_CHANGED) {
+
+ inv_emission_transform = get_global_transform().affine_inverse();
+
+ if (!local_coords) {
+
+ int pc = particles.size();
+
+ PoolVector<float>::Write w = particle_data.write();
+ PoolVector<Particle>::Read r = particles.read();
+ float *ptr = w.ptr();
+
+ for (int i = 0; i < pc; i++) {
+
+ Transform2D t = inv_emission_transform * r[i].transform;
+
+ if (r[i].active) {
+
+ ptr[0] = t.elements[0][0];
+ ptr[1] = t.elements[1][0];
+ ptr[2] = 0;
+ ptr[3] = t.elements[2][0];
+ ptr[4] = t.elements[0][1];
+ ptr[5] = t.elements[1][1];
+ ptr[6] = 0;
+ ptr[7] = t.elements[2][1];
+
+ } else {
+ zeromem(ptr, sizeof(float) * 8);
+ }
+
+ ptr += 13;
+ }
+ }
+ }
}
void CPUParticles2D::convert_from_particles(Node *p_particles) {
@@ -1174,15 +1203,16 @@ void CPUParticles2D::_bind_methods() {
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,or_greater"), "set_lifetime", "get_lifetime");
+ ADD_PROPERTY(PropertyInfo(Variant::REAL, "lifetime", PROPERTY_HINT_RANGE, "0.01,600.0,0.01,or_greater"), "set_lifetime", "get_lifetime");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "one_shot"), "set_one_shot", "get_one_shot");
- ADD_PROPERTY(PropertyInfo(Variant::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, "preprocess", PROPERTY_HINT_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, "0,64,0.01"), "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", "");
+ // No visibility_rect property contrarily to Particles2D, it's updated automatically.
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"), "set_draw_order", "get_draw_order");
ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_texture", "get_texture");
@@ -1263,12 +1293,10 @@ void CPUParticles2D::_bind_methods() {
ADD_PROPERTYI(PropertyInfo(Variant::REAL, "angular_velocity", PROPERTY_HINT_RANGE, "-720,720,0.01,or_lesser,or_greater"), "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);
@@ -1324,10 +1352,12 @@ void CPUParticles2D::_bind_methods() {
BIND_ENUM_CONSTANT(PARAM_MAX);
BIND_ENUM_CONSTANT(FLAG_ALIGN_Y_TO_VELOCITY);
+ BIND_ENUM_CONSTANT(FLAG_ROTATE_Y); // Unused, but exposed for consistency with 3D.
+ BIND_ENUM_CONSTANT(FLAG_DISABLE_Z); // Unused, but exposed for consistency with 3D.
BIND_ENUM_CONSTANT(FLAG_MAX);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_POINT);
- BIND_ENUM_CONSTANT(EMISSION_SHAPE_CIRCLE);
+ BIND_ENUM_CONSTANT(EMISSION_SHAPE_SPHERE);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_RECTANGLE);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_POINTS);
BIND_ENUM_CONSTANT(EMISSION_SHAPE_DIRECTED_POINTS);
@@ -1362,7 +1392,7 @@ CPUParticles2D::CPUParticles2D() {
set_spread(45);
set_flatness(0);
set_param(PARAM_INITIAL_LINEAR_VELOCITY, 1);
- //set_param(PARAM_ORBIT_VELOCITY, 0);
+ set_param(PARAM_ORBIT_VELOCITY, 0);
set_param(PARAM_LINEAR_ACCEL, 0);
set_param(PARAM_ANGULAR_VELOCITY, 0);
set_param(PARAM_RADIAL_ACCEL, 0);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 06:36:48 +0000