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Implemented tools around particles seed randomization.

Browse Source 
The purpose of this code is to expose the necessary
functions for users and engine devs to develop tooling
for properly timing and seeking inside particles.

Co-authored-by: Hugo Locurcio <hugo.locurcio@hugo.pro>
Co-authored-by: A Thousand Ships <96648715+AThousandShips@users.noreply.github.com>
Co-authored-by: Tomasz Chabora <kobewi4e@gmail.com>
Co-authored-by: Rémi Verschelde <rverschelde@gmail.com>
This commit is contained in:
QbieShay
2024-05-18 18:13:57 +02:00
committed by Qbieshay
parent bdf625bd54
commit e9eb0b6082
27 changed files with 653 additions and 108 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
drivers/gles3/storage/particles_storage.cpp
View File

@ -223,6 +223,19 @@ void ParticlesStorage::particles_set_pre_process_time(RID p_particles, double p_
ERR_FAIL_NULL(particles);
particles->pre_process_time = p_time;
}
void ParticlesStorage::particles_request_process_time(RID p_particles, real_t p_request_process_time) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->request_process_time = p_request_process_time;
}
void ParticlesStorage::particles_set_seed(RID p_particles, uint32_t p_seed) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
particles->random_seed = p_seed;
}
void ParticlesStorage::particles_set_explosiveness_ratio(RID p_particles, real_t p_ratio) {
Particles *particles = particles_owner.get_or_null(p_particles);
ERR_FAIL_NULL(particles);
@ -507,7 +520,6 @@ void ParticlesStorage::_particles_process(Particles *p_particles, double p_delta
if (p_particles->clear) {
p_particles->cycle_number = 0;
p_particles->random_seed = Math::rand();
} else if (new_phase < p_particles->phase) {
if (p_particles->one_shot) {
p_particles->emitting = false;
@ -1136,6 +1148,24 @@ void ParticlesStorage::update_particles() {
}
}
if (particles->request_process_time > 0.0) {
double frame_time;
if (fixed_fps > 0) {
frame_time = 1.0 / fixed_fps;
} else {
frame_time = 1.0 / 30.0;
}
float tmp_scale = particles->speed_scale;
particles->speed_scale = 1.0;
double todo = particles->request_process_time;
while (todo >= 0) {
_particles_process(particles, frame_time);
todo -= frame_time;
}
particles->speed_scale = tmp_scale;
particles->request_process_time = 0.0;
}
// Copy particles to instance buffer and pack Color/Custom.
// We don't have camera information here, so don't copy here if we need camera information for view depth or align mode.
if (particles->draw_order != RS::PARTICLES_DRAW_ORDER_VIEW_DEPTH && particles->transform_align != RS::PARTICLES_TRANSFORM_ALIGN_Z_BILLBOARD && particles->transform_align != RS::PARTICLES_TRANSFORM_ALIGN_Z_BILLBOARD_Y_TO_VELOCITY) {

4
drivers/gles3/storage/particles_storage.h
View File

@ -157,6 +157,7 @@ private:
int amount = 0;
double lifetime = 1.0;
double pre_process_time = 0.0;
real_t request_process_time = 0.0;
real_t explosiveness = 0.0;
real_t randomness = 0.0;
bool restart_request = false;
@ -246,6 +247,7 @@ private:
Particles() :
update_list(this) {
random_seed = Math::rand();
}
};
@ -325,6 +327,7 @@ public:
virtual void particles_set_lifetime(RID p_particles, double p_lifetime) override;
virtual void particles_set_one_shot(RID p_particles, bool p_one_shot) override;
virtual void particles_set_pre_process_time(RID p_particles, double p_time) override;
virtual void particles_request_process_time(RID p_particles, real_t p_request_process_time) override;
virtual void particles_set_explosiveness_ratio(RID p_particles, real_t p_ratio) override;
virtual void particles_set_randomness_ratio(RID p_particles, real_t p_ratio) override;
virtual void particles_set_custom_aabb(RID p_particles, const AABB &p_aabb) override;
@ -340,6 +343,7 @@ public:
virtual void particles_set_collision_base_size(RID p_particles, real_t p_size) override;
virtual void particles_set_transform_align(RID p_particles, RS::ParticlesTransformAlign p_transform_align) override;
virtual void particles_set_seed(RID p_particles, uint32_t p_seed) override;
virtual void particles_set_trails(RID p_particles, bool p_enable, double p_length) override;
virtual void particles_set_trail_bind_poses(RID p_particles, const Vector<Transform3D> &p_bind_poses) override;