class CrShader::Compute::ParticleSimulationEngine

CrShader::Compute::ParticleSimulationEngine
Reference
Object

Overview

Pure Core Engine for CPU/GPU Particle Simulation & Buffer Management

Defined in:

crshader/compute/particle_simulation_core.cr

Constructors

.new(capacity : Int32 = 1024, local_size_x : Int32 = 64, integrator : IntegratorMode = IntegratorMode::SemiImplicitEuler, bounds : DomainBounds = DomainBounds.new)

Class Method Summary

.hash11(p : Float32) : Float32
Deterministic hash for procedural seeding (matches std/particles GPU hash)

Instance Method Summary

#attractors : Array(ForceAttractor)
#attractors=(attractors : Array(ForceAttractor))
#bounds : DomainBounds
#bounds=(bounds : DomainBounds)
#buffer_byte_size : Int32
Total byte size of the std430 storage buffer
#capacity : Int32
#integrator : IntegratorMode
#integrator=(integrator : IntegratorMode)
#local_size_x : Int32
#pack_buffer! : Bytes
Packs all ParticleState structs into the contiguous std430 byte buffer
#particles : Slice(ParticleState)
#push_constants : SimulationPushConstants
#push_constants=(push_constants : SimulationPushConstants)
#raw_buffer : Bytes
#seed_radial(origin_x : Float32 = 0.0_f32, origin_y : Float32 = 5.0_f32, origin_z : Float32 = 0.0_f32, spread : Float32 = 2.0_f32, base_speed : Float32 = 3.0_f32, lifetime : Float32 = 4.0_f32) : Void
Seeds particles within a radial or box emitter volume
#step_cpu(dt : Float32) : Void
Reference CPU step matching the GPU compute shader physics kernel
#unpack_buffer!(bytes : Bytes = @raw_buffer) : Slice(ParticleState)
Unpacks the contiguous std430 byte buffer back into ParticleState structs
#workgroup_count_x : Int32
Number of 1D compute workgroups needed to cover capacity

Constructor Detail

def self.new(capacity : Int32 = 1024, local_size_x : Int32 = 64, integrator : IntegratorMode = IntegratorMode::SemiImplicitEuler, bounds : DomainBounds = DomainBounds.new) #

Class Method Detail

def self.hash11(p : Float32) : Float32 #

Deterministic hash for procedural seeding (matches std/particles GPU hash)

Instance Method Detail

def attractors : Array(ForceAttractor) #

def attractors=(attractors : Array(ForceAttractor)) #

def bounds : DomainBounds #

def bounds=(bounds : DomainBounds) #

def buffer_byte_size : Int32 #

Total byte size of the std430 storage buffer

def capacity : Int32 #

def integrator : IntegratorMode #

def integrator=(integrator : IntegratorMode) #

def local_size_x : Int32 #

def pack_buffer! : Bytes #

Packs all ParticleState structs into the contiguous std430 byte buffer

def particles : Slice(ParticleState) #

def push_constants : SimulationPushConstants #

def push_constants=(push_constants : SimulationPushConstants) #

def raw_buffer : Bytes #

def seed_radial(origin_x : Float32 = 0.0_f32, origin_y : Float32 = 5.0_f32, origin_z : Float32 = 0.0_f32, spread : Float32 = 2.0_f32, base_speed : Float32 = 3.0_f32, lifetime : Float32 = 4.0_f32) : Void #

Seeds particles within a radial or box emitter volume

def step_cpu(dt : Float32) : Void #

Reference CPU step matching the GPU compute shader physics kernel

def unpack_buffer!(bytes : Bytes = @raw_buffer) : Slice(ParticleState) #

Unpacks the contiguous std430 byte buffer back into ParticleState structs

def workgroup_count_x : Int32 #

Number of 1D compute workgroups needed to cover capacity