diff options
Diffstat (limited to 'source/blender/simulation/intern/simulation_solver.cc')
| -rw-r--r-- | source/blender/simulation/intern/simulation_solver.cc | 231 |
1 files changed, 112 insertions, 119 deletions
diff --git a/source/blender/simulation/intern/simulation_solver.cc b/source/blender/simulation/intern/simulation_solver.cc index ee7a8d40035..3c159eb1c58 100644 --- a/source/blender/simulation/intern/simulation_solver.cc +++ b/source/blender/simulation/intern/simulation_solver.cc @@ -17,23 +17,16 @@ #include "simulation_solver.hh" #include "BKE_customdata.h" -#include "BKE_lib_id.h" #include "BKE_persistent_data_handle.hh" #include "BLI_rand.hh" #include "BLI_set.hh" -namespace blender::sim { - -ParticleForce::~ParticleForce() -{ -} +#include "DEG_depsgraph_query.h" -ParticleEmitter::~ParticleEmitter() -{ -} +namespace blender::sim { -static CustomDataType cpp_to_custom_data_type(const fn::CPPType &type) +static CustomDataType cpp_to_custom_data_type(const CPPType &type) { if (type.is<float3>()) { return CD_PROP_FLOAT3; @@ -48,18 +41,18 @@ static CustomDataType cpp_to_custom_data_type(const fn::CPPType &type) return CD_PROP_FLOAT; } -static const fn::CPPType &custom_to_cpp_data_type(CustomDataType type) +static const CPPType &custom_to_cpp_data_type(CustomDataType type) { switch (type) { case CD_PROP_FLOAT3: - return fn::CPPType::get<float3>(); + return CPPType::get<float3>(); case CD_PROP_FLOAT: - return fn::CPPType::get<float>(); + return CPPType::get<float>(); case CD_PROP_INT32: - return fn::CPPType::get<int32_t>(); + return CPPType::get<int32_t>(); default: BLI_assert(false); - return fn::CPPType::get<float>(); + return CPPType::get<float>(); } } @@ -67,33 +60,33 @@ class CustomDataAttributesRef { private: Array<void *> buffers_; int64_t size_; - const fn::AttributesInfo &info_; + const AttributesInfo &info_; public: - CustomDataAttributesRef(CustomData &custom_data, int64_t size, const fn::AttributesInfo &info) + CustomDataAttributesRef(CustomData &custom_data, int64_t size, const AttributesInfo &info) : buffers_(info.size(), nullptr), size_(size), info_(info) { for (int attribute_index : info.index_range()) { StringRefNull name = info.name_of(attribute_index); - const fn::CPPType &cpp_type = info.type_of(attribute_index); + const CPPType &cpp_type = info.type_of(attribute_index); CustomDataType custom_type = cpp_to_custom_data_type(cpp_type); void *data = CustomData_get_layer_named(&custom_data, custom_type, name.c_str()); buffers_[attribute_index] = data; } } - operator fn::MutableAttributesRef() + operator MutableAttributesRef() { - return fn::MutableAttributesRef(info_, buffers_, size_); + return MutableAttributesRef(info_, buffers_, size_); } - operator fn::AttributesRef() const + operator AttributesRef() const { - return fn::AttributesRef(info_, buffers_, size_); + return AttributesRef(info_, buffers_, size_); } }; -static void ensure_attributes_exist(ParticleSimulationState *state, const fn::AttributesInfo &info) +static void ensure_attributes_exist(ParticleSimulationState *state, const AttributesInfo &info) { bool found_layer_to_remove; do { @@ -101,7 +94,7 @@ static void ensure_attributes_exist(ParticleSimulationState *state, const fn::At for (int layer_index = 0; layer_index < state->attributes.totlayer; layer_index++) { CustomDataLayer *layer = &state->attributes.layers[layer_index]; BLI_assert(layer->name != nullptr); - const fn::CPPType &cpp_type = custom_to_cpp_data_type((CustomDataType)layer->type); + const CPPType &cpp_type = custom_to_cpp_data_type((CustomDataType)layer->type); StringRefNull name = layer->name; if (!info.has_attribute(name, cpp_type)) { found_layer_to_remove = true; @@ -113,7 +106,7 @@ static void ensure_attributes_exist(ParticleSimulationState *state, const fn::At for (int attribute_index : info.index_range()) { StringRefNull attribute_name = info.name_of(attribute_index); - const fn::CPPType &cpp_type = info.type_of(attribute_index); + const CPPType &cpp_type = info.type_of(attribute_index); CustomDataType custom_type = cpp_to_custom_data_type(cpp_type); if (CustomData_get_layer_named(&state->attributes, custom_type, attribute_name.c_str()) == nullptr) { @@ -128,35 +121,38 @@ static void ensure_attributes_exist(ParticleSimulationState *state, const fn::At } } -BLI_NOINLINE static void simulate_existing_particles(SimulationSolveContext &solve_context, - ParticleSimulationState &state, - const fn::AttributesInfo &attributes_info) +BLI_NOINLINE static void simulate_particle_chunk(SimulationSolveContext &solve_context, + ParticleSimulationState &state, + MutableAttributesRef attributes, + MutableSpan<float> remaining_durations, + float end_time) { - CustomDataAttributesRef custom_data_attributes{ - state.attributes, state.tot_particles, attributes_info}; - fn::MutableAttributesRef attributes = custom_data_attributes; - - Array<float3> force_vectors{state.tot_particles, {0, 0, 0}}; - const Vector<const ParticleForce *> *forces = - solve_context.influences().particle_forces.lookup_ptr(state.head.name); - - if (forces != nullptr) { - ParticleChunkContext particle_chunk_context{IndexMask(state.tot_particles), attributes}; - ParticleForceContext particle_force_context{ - solve_context, particle_chunk_context, force_vectors}; + int particle_amount = attributes.size(); + + Span<const ParticleAction *> begin_actions = + solve_context.influences.particle_time_step_begin_actions.lookup_as(state.head.name); + for (const ParticleAction *action : begin_actions) { + ParticleChunkContext particles{IndexMask(particle_amount), attributes}; + ParticleActionContext action_context{solve_context, particles}; + action->execute(action_context); + } - for (const ParticleForce *force : *forces) { - force->add_force(particle_force_context); - } + Array<float3> force_vectors{particle_amount, {0, 0, 0}}; + Span<const ParticleForce *> forces = solve_context.influences.particle_forces.lookup_as( + state.head.name); + for (const ParticleForce *force : forces) { + ParticleChunkContext particles{IndexMask(particle_amount), attributes}; + ParticleForceContext particle_force_context{solve_context, particles, force_vectors}; + force->add_force(particle_force_context); } MutableSpan<float3> positions = attributes.get<float3>("Position"); MutableSpan<float3> velocities = attributes.get<float3>("Velocity"); MutableSpan<float> birth_times = attributes.get<float>("Birth Time"); MutableSpan<int> dead_states = attributes.get<int>("Dead"); - float end_time = solve_context.solve_interval().end(); - float time_step = solve_context.solve_interval().duration(); - for (int i : positions.index_range()) { + + for (int i : IndexRange(particle_amount)) { + const float time_step = remaining_durations[i]; velocities[i] += force_vectors[i] * time_step; positions[i] += velocities[i] * time_step; @@ -164,14 +160,35 @@ BLI_NOINLINE static void simulate_existing_particles(SimulationSolveContext &sol dead_states[i] = true; } } + + Span<const ParticleAction *> end_actions = + solve_context.influences.particle_time_step_end_actions.lookup_as(state.head.name); + for (const ParticleAction *action : end_actions) { + ParticleChunkContext particles{IndexMask(particle_amount), attributes}; + ParticleActionContext action_context{solve_context, particles}; + action->execute(action_context); + } +} + +BLI_NOINLINE static void simulate_existing_particles(SimulationSolveContext &solve_context, + ParticleSimulationState &state, + const AttributesInfo &attributes_info) +{ + CustomDataAttributesRef custom_data_attributes{ + state.attributes, state.tot_particles, attributes_info}; + MutableAttributesRef attributes = custom_data_attributes; + + Array<float> remaining_durations(state.tot_particles, solve_context.solve_interval.duration()); + simulate_particle_chunk( + solve_context, state, attributes, remaining_durations, solve_context.solve_interval.stop()); } BLI_NOINLINE static void run_emitters(SimulationSolveContext &solve_context, ParticleAllocators &particle_allocators) { - for (const ParticleEmitter *emitter : solve_context.influences().particle_emitters) { + for (const ParticleEmitter *emitter : solve_context.influences.particle_emitters) { ParticleEmitterContext emitter_context{ - solve_context, particle_allocators, solve_context.solve_interval()}; + solve_context, particle_allocators, solve_context.solve_interval}; emitter->emit(emitter_context); } } @@ -181,10 +198,10 @@ BLI_NOINLINE static int count_particles_after_time_step(ParticleSimulationState { CustomDataAttributesRef custom_data_attributes{ state.attributes, state.tot_particles, allocator.attributes_info()}; - fn::MutableAttributesRef attributes = custom_data_attributes; + MutableAttributesRef attributes = custom_data_attributes; int new_particle_amount = attributes.get<int>("Dead").count(0); - for (fn::MutableAttributesRef emitted_attributes : allocator.get_allocations()) { + for (MutableAttributesRef emitted_attributes : allocator.get_allocations()) { new_particle_amount += emitted_attributes.get<int>("Dead").count(0); } @@ -199,7 +216,7 @@ BLI_NOINLINE static void remove_dead_and_add_new_particles(ParticleSimulationSta CustomDataAttributesRef custom_data_attributes{ state.attributes, state.tot_particles, allocator.attributes_info()}; - Vector<fn::MutableAttributesRef> particle_sources; + Vector<MutableAttributesRef> particle_sources; particle_sources.append(custom_data_attributes); particle_sources.extend(allocator.get_allocations()); @@ -211,16 +228,16 @@ BLI_NOINLINE static void remove_dead_and_add_new_particles(ParticleSimulationSta dead_layer = &layer; continue; } - const fn::CPPType &cpp_type = custom_to_cpp_data_type((CustomDataType)layer.type); - fn::GMutableSpan new_buffer{ + const CPPType &cpp_type = custom_to_cpp_data_type((CustomDataType)layer.type); + GMutableSpan new_buffer{ cpp_type, MEM_mallocN_aligned(new_particle_amount * cpp_type.size(), cpp_type.alignment(), AT), new_particle_amount}; int current = 0; - for (fn::MutableAttributesRef attributes : particle_sources) { + for (MutableAttributesRef attributes : particle_sources) { Span<int> dead_states = attributes.get<int>("Dead"); - fn::GSpan source_buffer = attributes.get(name); + GSpan source_buffer = attributes.get(name); BLI_assert(source_buffer.type() == cpp_type); for (int i : attributes.index_range()) { if (dead_states[i] == 0) { @@ -233,7 +250,7 @@ BLI_NOINLINE static void remove_dead_and_add_new_particles(ParticleSimulationSta if (layer.data != nullptr) { MEM_freeN(layer.data); } - layer.data = new_buffer.buffer(); + layer.data = new_buffer.data(); } BLI_assert(dead_layer != nullptr); @@ -246,56 +263,10 @@ BLI_NOINLINE static void remove_dead_and_add_new_particles(ParticleSimulationSta state.next_particle_id += allocator.total_allocated(); } -static void update_persistent_data_handles(Simulation &simulation, - const VectorSet<ID *> &used_data_blocks) -{ - Set<ID *> contained_ids; - Set<int> used_handles; - - /* Remove handles that have been invalidated. */ - LISTBASE_FOREACH_MUTABLE ( - PersistentDataHandleItem *, handle_item, &simulation.persistent_data_handles) { - if (handle_item->id == nullptr) { - BLI_remlink(&simulation.persistent_data_handles, handle_item); - continue; - } - if (!used_data_blocks.contains(handle_item->id)) { - id_us_min(handle_item->id); - BLI_remlink(&simulation.persistent_data_handles, handle_item); - MEM_freeN(handle_item); - continue; - } - contained_ids.add_new(handle_item->id); - used_handles.add_new(handle_item->handle); - } - - /* Add new handles that are not in the list yet. */ - int next_handle = 0; - for (ID *id : used_data_blocks) { - if (contained_ids.contains(id)) { - continue; - } - - /* Find the next available handle. */ - while (used_handles.contains(next_handle)) { - next_handle++; - } - used_handles.add_new(next_handle); - - PersistentDataHandleItem *handle_item = (PersistentDataHandleItem *)MEM_callocN( - sizeof(*handle_item), AT); - /* Cannot store const pointers in DNA. */ - id_us_plus(id); - handle_item->id = id; - handle_item->handle = next_handle; - - BLI_addtail(&simulation.persistent_data_handles, handle_item); - } -} - void initialize_simulation_states(Simulation &simulation, Depsgraph &UNUSED(depsgraph), - const SimulationInfluences &UNUSED(influences)) + const SimulationInfluences &UNUSED(influences), + const bke::PersistentDataHandleMap &UNUSED(handle_map)) { simulation.current_simulation_time = 0.0f; } @@ -303,15 +274,10 @@ void initialize_simulation_states(Simulation &simulation, void solve_simulation_time_step(Simulation &simulation, Depsgraph &depsgraph, const SimulationInfluences &influences, + const bke::PersistentDataHandleMap &handle_map, + const DependencyAnimations &dependency_animations, float time_step) { - update_persistent_data_handles(simulation, influences.used_data_blocks); - - bke::PersistentDataHandleMap handle_map; - LISTBASE_FOREACH (PersistentDataHandleItem *, handle, &simulation.persistent_data_handles) { - handle_map.add(handle->handle, *handle->id); - } - SimulationStateMap state_map; LISTBASE_FOREACH (SimulationState *, state, &simulation.states) { state_map.add(state); @@ -322,30 +288,32 @@ void solve_simulation_time_step(Simulation &simulation, influences, TimeInterval(simulation.current_simulation_time, time_step), state_map, - handle_map}; - TimeInterval simulation_time_interval{simulation.current_simulation_time, time_step}; + handle_map, + dependency_animations}; Span<ParticleSimulationState *> particle_simulation_states = state_map.lookup<ParticleSimulationState>(); - Map<std::string, std::unique_ptr<fn::AttributesInfo>> attribute_infos; + Map<std::string, std::unique_ptr<AttributesInfo>> attribute_infos; Map<std::string, std::unique_ptr<ParticleAllocator>> particle_allocators_map; for (ParticleSimulationState *state : particle_simulation_states) { - const fn::AttributesInfoBuilder &builder = *influences.particle_attributes_builder.lookup_as( + const AttributesInfoBuilder &builder = *influences.particle_attributes_builder.lookup_as( state->head.name); - auto info = std::make_unique<fn::AttributesInfo>(builder); + auto info = std::make_unique<AttributesInfo>(builder); ensure_attributes_exist(state, *info); + uint32_t hash_seed = DefaultHash<StringRef>{}(state->head.name); particle_allocators_map.add_new( - state->head.name, std::make_unique<ParticleAllocator>(*info, state->next_particle_id)); + state->head.name, + std::make_unique<ParticleAllocator>(*info, state->next_particle_id, hash_seed)); attribute_infos.add_new(state->head.name, std::move(info)); } ParticleAllocators particle_allocators{particle_allocators_map}; for (ParticleSimulationState *state : particle_simulation_states) { - const fn::AttributesInfo &attributes_info = *attribute_infos.lookup_as(state->head.name); + const AttributesInfo &attributes_info = *attribute_infos.lookup_as(state->head.name); simulate_existing_particles(solve_context, *state, attributes_info); } @@ -353,10 +321,35 @@ void solve_simulation_time_step(Simulation &simulation, for (ParticleSimulationState *state : particle_simulation_states) { ParticleAllocator &allocator = *particle_allocators.try_get_allocator(state->head.name); + + for (MutableAttributesRef attributes : allocator.get_allocations()) { + Span<const ParticleAction *> actions = influences.particle_birth_actions.lookup_as( + state->head.name); + for (const ParticleAction *action : actions) { + ParticleChunkContext chunk_context{IndexRange(attributes.size()), attributes}; + ParticleActionContext action_context{solve_context, chunk_context}; + action->execute(action_context); + } + } + } + + for (ParticleSimulationState *state : particle_simulation_states) { + ParticleAllocator &allocator = *particle_allocators.try_get_allocator(state->head.name); + + for (MutableAttributesRef attributes : allocator.get_allocations()) { + Array<float> remaining_durations(attributes.size()); + Span<float> birth_times = attributes.get<float>("Birth Time"); + const float end_time = solve_context.solve_interval.stop(); + for (int i : attributes.index_range()) { + remaining_durations[i] = end_time - birth_times[i]; + } + simulate_particle_chunk(solve_context, *state, attributes, remaining_durations, end_time); + } + remove_dead_and_add_new_particles(*state, allocator); } - simulation.current_simulation_time = simulation_time_interval.end(); + simulation.current_simulation_time = solve_context.solve_interval.stop(); } } // namespace blender::sim |