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Implement manual particle emission and particle sub emitters.

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This commit is contained in:
reduz
2020-09-06 09:18:10 -03:00
parent ceed524936
commit d0bddf53c5
14 changed files with 871 additions and 317 deletions
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38
servers/rendering/rasterizer_rd/rasterizer_storage_rd.h
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@@ -249,6 +249,7 @@ private:
RID default_rd_textures[DEFAULT_RD_TEXTURE_MAX];
RID default_rd_samplers[RS::CANVAS_ITEM_TEXTURE_FILTER_MAX][RS::CANVAS_ITEM_TEXTURE_REPEAT_MAX];
RID default_rd_storage_buffer;
/* DECAL ATLAS */
@@ -482,6 +483,25 @@ private:
float emission_transform[16];
};
struct ParticleEmissionBufferData {
};
struct ParticleEmissionBuffer {
struct Data {
float xform[16];
float velocity[3];
uint32_t flags;
float color[4];
float custom[4];
};
int32_t particle_count;
int32_t particle_max;
uint32_t pad1;
uint32_t pad2;
Data data[1]; //its 2020 and empty arrays are still non standard in C++
};
struct Particles {
bool inactive;
float inactive_time;
@@ -515,6 +535,8 @@ private:
bool dirty = false;
Particles *update_list = nullptr;
RID sub_emitter;
float phase;
float prev_phase;
uint64_t prev_ticks;
@@ -530,8 +552,15 @@ private:
bool clear;
bool force_sub_emit = false;
Transform emission_transform;
Vector<uint8_t> emission_buffer_data;
ParticleEmissionBuffer *emission_buffer = nullptr;
RID emission_storage_buffer;
Particles() :
inactive(true),
inactive_time(0.0),
@@ -562,6 +591,8 @@ private:
};
void _particles_process(Particles *p_particles, float p_delta);
void _particles_allocate_emission_buffer(Particles *particles);
void _particles_free_data(Particles *particles);
struct ParticlesShader {
struct PushConstant {
@@ -569,8 +600,11 @@ private:
uint32_t clear;
uint32_t total_particles;
uint32_t trail_size;
uint32_t use_fractional_delta;
uint32_t pad[3];
uint32_t sub_emitter_mode;
uint32_t can_emit;
uint32_t pad;
};
ParticlesShaderRD shader;
@@ -1650,6 +1684,8 @@ public:
void particles_set_fixed_fps(RID p_particles, int p_fps);
void particles_set_fractional_delta(RID p_particles, bool p_enable);
void particles_restart(RID p_particles);
void particles_emit(RID p_particles, const Transform &p_transform, const Vector3 &p_velocity, const Color &p_color, const Color &p_custom, uint32_t p_emit_flags);
void particles_set_subemitter(RID p_particles, RID p_subemitter_particles);
void particles_set_draw_order(RID p_particles, RS::ParticlesDrawOrder p_order);