#include <platform/graphics/metal/metalParticleComputePass.h>

Public Member Functions
void	advect (Texture *velocityTexture, const ParticleComputeUniforms &uniforms)
MTL::Buffer *	currentParticleBuffer () const
void	initialize (uint32_t maxParticles)
bool	isInitialized () const
	True once initialize() has been called successfully.
uint32_t	maxParticles () const
	Get the particle count (set during initialize).
	MetalParticleComputePass (const MetalParticleComputePass &)=delete
	MetalParticleComputePass (MetalGraphicsDevice *device)
MetalParticleComputePass &	operator= (const MetalParticleComputePass &)=delete
void	uploadParticles (const void *data, uint32_t count)
	~MetalParticleComputePass ()

Detailed Description

Manages GPU particle advection via a Metal compute kernel.

Owns the compute pipeline, double-buffered particle MTL::Buffers, and uniform buffer. Advection, aging, respawning, and boundary handling all happen on the GPU.

Definition at line 62 of file metalParticleComputePass.h.

Constructor & Destructor Documentation

◆ MetalParticleComputePass() [1/2]

visutwin::canvas::MetalParticleComputePass::MetalParticleComputePass ( MetalGraphicsDevice * device )

explicit

Definition at line 163 of file metalParticleComputePass.cpp.

Referenced by MetalParticleComputePass(), and operator=().

◆ ~MetalParticleComputePass()

visutwin::canvas::MetalParticleComputePass::~MetalParticleComputePass ( )

Definition at line 168 of file metalParticleComputePass.cpp.

◆ MetalParticleComputePass() [2/2]

visutwin::canvas::MetalParticleComputePass::MetalParticleComputePass ( const MetalParticleComputePass & )

delete

References MetalParticleComputePass().

Member Function Documentation

◆ advect()

void visutwin::canvas::MetalParticleComputePass::advect	(	Texture *	velocityTexture,
		const ParticleComputeUniforms &	uniforms )

Execute GPU advection for one timestep.

Parameters

velocityTexture	3D texture (RGBA32Float): xyz = velocity, w unused.
uniforms	Per-frame parameters.

Definition at line 287 of file metalParticleComputePass.cpp.

References visutwin::canvas::Texture::impl(), and visutwin::canvas::ParticleComputeUniforms::particleCount.

◆ currentParticleBuffer()

MTL::Buffer * visutwin::canvas::MetalParticleComputePass::currentParticleBuffer ( ) const

nodiscard

Get the current (most recently written) particle buffer for rendering. The buffer contains maxParticles GPUParticle structs (48 bytes each).

Definition at line 350 of file metalParticleComputePass.cpp.

◆ initialize()

void visutwin::canvas::MetalParticleComputePass::initialize ( uint32_t maxParticles )

Allocate particle buffers for the given capacity. Must be called before the first advect().

Definition at line 240 of file metalParticleComputePass.cpp.

References maxParticles().

◆ isInitialized()

bool visutwin::canvas::MetalParticleComputePass::isInitialized ( ) const

inlinenodiscard

True once initialize() has been called successfully.

Definition at line 95 of file metalParticleComputePass.h.

◆ maxParticles()

uint32_t visutwin::canvas::MetalParticleComputePass::maxParticles ( ) const

inlinenodiscard

Get the particle count (set during initialize).

Definition at line 92 of file metalParticleComputePass.h.

Referenced by initialize(), and operator=().

◆ operator=()

MetalParticleComputePass & visutwin::canvas::MetalParticleComputePass::operator= ( const MetalParticleComputePass & )