Not threadsafe. More...

Public Member Functions
shared_ptr< Block >	alloc (const shared_ptr< ParticleSystem > &particleSystem, const shared_ptr< ParticleSurface > &surface, int numElements)

void	allocateVertexBuffer (const int newReserve)
	Allocate the vertexBuffer and all associated attribute arrays, throwing away all old data. More...

void	compact (const int newReserveCount)

void	free (const shared_ptr< Block > &block)

void	removeUnusedBlocks ()
	Remove all blocks that are not in use because the underlying ParticleSurface referencing it is gone. More...

int	reserve () const
	Total elements allocated, including those in use. More...

Public Attributes
Array< shared_ptr< Block > >	blockArray
	A list of all Blocks in s_particleBuffer, which include potentially live ParticleSystems and where their particles are stored in s_particleBuffer. More...

int	count
	Elements actually in use. More...

IndexStream	indexStream
	Only used for sorted transparency. More...

AttributeArray	materialProperties
	material index, texture-space width/height in pixels (packed to top-left), Entity expressive rendering flags (e.g. More...

AttributeArray	normal
	GL_UNSIGNED_BYTE x 4. More...

AttributeArray	position
	Center of each particle, world-space XYZ, and the angle in GL_FLOAT x 4. More...

AttributeArray	shape
	world-space radius, coverage, userdata in GL_FLOAT x 3 More...

shared_ptr< VertexBuffer >	vertexBuffer

Static Public Attributes
static const uint16	CASTS_SHADOWS = 0x1
	Mask for materialProperties[3]. More...

static const uint16	RECEIVES_SHADOWS = 0x2
	Mask for materialProperties[3]. More...

Detailed Description

Not threadsafe.

Member Function Documentation

◆ alloc()

shared_ptr<Block> G3D::ParticleSystem::ParticleBuffer::alloc	(	const shared_ptr< ParticleSystem > &	particleSystem,
		const shared_ptr< ParticleSurface > &	surface,
		int	numElements
	)

◆ allocateVertexBuffer()

void G3D::ParticleSystem::ParticleBuffer::allocateVertexBuffer ( const int newReserve )

Allocate the vertexBuffer and all associated attribute arrays, throwing away all old data.

◆ compact()

void G3D::ParticleSystem::ParticleBuffer::compact ( const int newReserveCount )

◆ free()

void G3D::ParticleSystem::ParticleBuffer::free ( const shared_ptr< Block > & block )

◆ removeUnusedBlocks()

void G3D::ParticleSystem::ParticleBuffer::removeUnusedBlocks ( )

Remove all blocks that are not in use because the underlying ParticleSurface referencing it is gone.

◆ reserve()

int G3D::ParticleSystem::ParticleBuffer::reserve ( ) const

inline

Total elements allocated, including those in use.

Member Data Documentation

◆ blockArray

Array<shared_ptr<Block> > G3D::ParticleSystem::ParticleBuffer::blockArray

A list of all Blocks in s_particleBuffer, which include potentially live ParticleSystems and where their particles are stored in s_particleBuffer.

Used for managing allocation of space within s_particleBuffer.

◆ CASTS_SHADOWS

const uint16 G3D::ParticleSystem::ParticleBuffer::CASTS_SHADOWS = 0x1

static

Mask for materialProperties[3].

◆ count

int G3D::ParticleSystem::ParticleBuffer::count

Elements actually in use.

◆ indexStream

IndexStream G3D::ParticleSystem::ParticleBuffer::indexStream

Only used for sorted transparency.

Recomputed for each draw call based on a depth sort. GL_UNSIGNED_INT

◆ materialProperties

AttributeArray G3D::ParticleSystem::ParticleBuffer::materialProperties

material index, texture-space width/height in pixels (packed to top-left), Entity expressive rendering flags (e.g.

: casts shadows, receives shadows), and userdataInt in GL_UNSIGNED_SHORT x 4 format

◆ normal

AttributeArray G3D::ParticleSystem::ParticleBuffer::normal

GL_UNSIGNED_BYTE x 4.

The fourth component indicates how much it should be used vs. the billboard normal for shading purposes (we could use the magnitude of the normal, but we need the fourth component for alignment anyway).

◆ position

AttributeArray G3D::ParticleSystem::ParticleBuffer::position

Center of each particle, world-space XYZ, and the angle in GL_FLOAT x 4.

Referenced by reserve().

◆ RECEIVES_SHADOWS

const uint16 G3D::ParticleSystem::ParticleBuffer::RECEIVES_SHADOWS = 0x2