diff options
Diffstat (limited to 'scene/3d')
| -rw-r--r-- | scene/3d/cpu_particles.cpp | 168 | ||||
| -rw-r--r-- | scene/3d/cpu_particles.h | 1 |
2 files changed, 96 insertions, 73 deletions
diff --git a/scene/3d/cpu_particles.cpp b/scene/3d/cpu_particles.cpp index 93ff60bc4e..5c895ecf22 100644 --- a/scene/3d/cpu_particles.cpp +++ b/scene/3d/cpu_particles.cpp @@ -46,9 +46,17 @@ PoolVector<Face3> CPUParticles::get_faces(uint32_t p_usage_flags) const { void CPUParticles::set_emitting(bool p_emitting) { + if (emitting == p_emitting) + return; + emitting = p_emitting; - if (emitting) + if (emitting) { set_process_internal(true); + + // first update before rendering to avoid one frame delay after emitting starts + if (time == 0) + _update_internal(); + } } void CPUParticles::set_amount(int p_amount) { @@ -508,6 +516,81 @@ static float rand_from_seed(uint32_t &seed) { return float(seed % uint32_t(65536)) / 65535.0; } +void CPUParticles::_update_internal() { + + if (particles.size() == 0 || !is_visible_in_tree()) { + _set_redraw(false); + return; + } + + float delta = get_process_delta_time(); + if (emitting) { + inactive_time = 0; + } else { + inactive_time += delta; + if (inactive_time > lifetime * 1.2) { + set_process_internal(false); + _set_redraw(false); + + //reset variables + time = 0; + inactive_time = 0; + frame_remainder = 0; + cycle = 0; + return; + } + } + _set_redraw(true); + + bool processed = false; + + if (time == 0 && pre_process_time > 0.0) { + + float frame_time; + if (fixed_fps > 0) + frame_time = 1.0 / fixed_fps; + else + frame_time = 1.0 / 30.0; + + float todo = pre_process_time; + + while (todo >= 0) { + _particles_process(frame_time); + processed = true; + todo -= frame_time; + } + } + + if (fixed_fps > 0) { + float frame_time = 1.0 / fixed_fps; + float decr = frame_time; + + float ldelta = delta; + if (ldelta > 0.1) { //avoid recursive stalls if fps goes below 10 + ldelta = 0.1; + } else if (ldelta <= 0.0) { //unlikely but.. + ldelta = 0.001; + } + float todo = frame_remainder + ldelta; + + while (todo >= frame_time) { + _particles_process(frame_time); + processed = true; + todo -= decr; + } + + frame_remainder = todo; + + } else { + _particles_process(delta); + processed = true; + } + + if (processed) { + _update_particle_data_buffer(); + } +} + void CPUParticles::_particles_process(float p_delta) { p_delta *= speed_scale; @@ -1068,85 +1151,24 @@ void CPUParticles::_notification(int p_what) { if (p_what == NOTIFICATION_ENTER_TREE) { set_process_internal(emitting); + + // first update before rendering to avoid one frame delay after emitting starts + if (emitting && (time == 0)) + _update_internal(); } if (p_what == NOTIFICATION_EXIT_TREE) { _set_redraw(false); } - if (p_what == NOTIFICATION_INTERNAL_PROCESS) { - - if (particles.size() == 0 || !is_visible_in_tree()) { - _set_redraw(false); - return; - } - - float delta = get_process_delta_time(); - if (emitting) { - inactive_time = 0; - } else { - inactive_time += delta; - if (inactive_time > lifetime * 1.2) { - set_process_internal(false); - _set_redraw(false); - - //reset variables - time = 0; - inactive_time = 0; - frame_remainder = 0; - cycle = 0; - return; - } - } - _set_redraw(true); - - bool processed = false; - - if (time == 0 && pre_process_time > 0.0) { - - float frame_time; - if (fixed_fps > 0) - frame_time = 1.0 / fixed_fps; - else - frame_time = 1.0 / 30.0; - - float todo = pre_process_time; - - while (todo >= 0) { - _particles_process(frame_time); - processed = true; - todo -= frame_time; - } - } - - if (fixed_fps > 0) { - float frame_time = 1.0 / fixed_fps; - float decr = frame_time; - - float ldelta = delta; - if (ldelta > 0.1) { //avoid recursive stalls if fps goes below 10 - ldelta = 0.1; - } else if (ldelta <= 0.0) { //unlikely but.. - ldelta = 0.001; - } - float todo = frame_remainder + ldelta; - - while (todo >= frame_time) { - _particles_process(frame_time); - processed = true; - todo -= decr; - } - - frame_remainder = todo; - - } else { - _particles_process(delta); - processed = true; - } + if (p_what == NOTIFICATION_VISIBILITY_CHANGED) { + // first update before rendering to avoid one frame delay after emitting starts + if (emitting && (time == 0)) + _update_internal(); + } - if (processed) { - _update_particle_data_buffer(); - } + if (p_what == NOTIFICATION_INTERNAL_PROCESS) { + _update_internal(); } if (p_what == NOTIFICATION_TRANSFORM_CHANGED) { diff --git a/scene/3d/cpu_particles.h b/scene/3d/cpu_particles.h index 66b37f359a..635265be7f 100644 --- a/scene/3d/cpu_particles.h +++ b/scene/3d/cpu_particles.h @@ -173,6 +173,7 @@ private: Vector3 gravity; + void _update_internal(); void _particles_process(float p_delta); void _update_particle_data_buffer(); |