SLParticleSystem creates a particle meshes from a point primitive buffer. More...

#include <SLParticleSystem.h>

Inheritance diagram for SLParticleSystem:

Public Member Functions
	SLParticleSystem (SLAssetManager assetMgr, const SLint amount, const SLVec3f &velocityRandomStart, const SLVec3f &velocityRandomEnd, const SLfloat &timeToLive, SLGLTexture texC, const SLstring &name="Particle system", SLGLTexture *texFlipbook=nullptr)
	SLParticleSystem ctor with some initial values. The number of particles. More...

void	draw (SLSceneView sv, SLNode node)

void	deleteData ()
	deleteData deletes all mesh data and VAOs More...

void	deleteDataGpu ()
	deleteData deletes all mesh data and VAOs More...

void	buildAABB (SLAABBox &aabb, const SLMat4f &wmNode)

void	generate ()
	Function which will generate the particles and attributes them to the VAO. More...

void	generateBernsteinPAlpha ()

void	generateBernsteinPSize ()

void	changeTexture ()

void	setNotVisibleInFrustum ()

void	pauseOrResume ()

SLVec3f	acceleration ()

SLfloat	accelerationConst ()

SLint	amount ()

SLfloat	angularVelocityConst ()

SLVec2f	angularVelocityRange ()

float *	bezierControlPointAlpha ()

float *	bezierStartEndPointAlpha ()

float *	bezierControlPointSize ()

float *	bezierStartEndPointSize ()

SLBillboardType	billboardType ()

SLCol4f	color ()

SLVColorLUTPoint &	colorPoints ()

SLbool	doDirectionSpeed ()

SLbool	doSpeedRange ()

SLbool	doAcc ()

SLbool	doAccDiffDir ()

SLbool	doAlphaOverLT ()

SLbool	doAlphaOverLTCurve ()

SLbool	doBlendBrightness ()

SLbool	doCounterGap ()

SLbool	doColor ()

SLbool	doColorOverLT ()

SLbool	doGravity ()

SLbool	doFlipBookTexture ()

SLbool	doRotation ()

SLbool	doRotRange ()

SLbool	doSizeOverLT ()

SLbool	doSizeOverLTCurve ()

SLbool	doShape ()

SLbool	doShapeSurface ()

SLbool	doShapeOverride ()

SLbool	doShapeSpawnBase ()

SLbool	doWorldSpace ()

SLVec3f	direction ()

AvgFloat &	drawTime ()

SLVec3f	emitterPos () const

SLVec3f	gravity ()

SLint	flipbookColumns ()

SLint	flipbookRows ()

int	frameRateFB ()

SLbool	isGenerated ()

SLbool	isPaused ()

SLfloat	radiusW ()

SLfloat	radiusH ()

SLfloat	scale ()

SLShapeType	shapeType ()

SLfloat	shapeAngle ()

SLfloat	shapeHeight ()

SLfloat	shapeRadius ()

SLVec3f	shapeScale ()

SLfloat	shapeWidth ()

SLfloat	speed ()

SLVec2f	speedRange ()

SLGLTexture *	textureFirst ()

SLGLTexture *	textureFlipbook ()

SLfloat	timeToLive ()

AvgFloat &	updateTime ()

SLint	velocityType ()

SLVec3f	velocityConst ()

SLVec3f	velocityRndMin ()

SLVec3f	velocityRndMax ()

void	amount (SLint i)

void	accConst (SLfloat f)

void	acceleration (SLVec3f v)

void	acceleration (SLfloat vX, SLfloat vY, SLfloat vZ)

void	angularVelocityConst (SLfloat f)

void	angularVelocityRange (SLVec2f v)

void	angularVelocityRange (SLfloat vX, SLfloat vY)

void	billboardType (SLBillboardType bt)

void	bezierControlPointAlpha (float arrayPoint[4])

void	bezierStartEndPointAlpha (float arrayPoint[4])

void	bezierControlPointSize (float arrayPoint[4])

void	bezierStartEndPointSize (float arrayPoint[4])

void	color (SLCol4f c)

void	colorArr (SLfloat *arr)

void	direction (SLVec3f v)

void	direction (SLfloat vX, SLfloat vY, SLfloat vZ)

void	doAcceleration (SLbool b)

void	doAlphaOverLT (SLbool b)

void	doAlphaOverLTCurve (SLbool b)

void	doAccDiffDir (SLbool b)

void	doBlendBrightness (SLbool b)

void	doColor (SLbool b)

void	doColorOverLT (SLbool b)

void	doCounterGap (SLbool b)

void	doDirectionSpeed (SLbool b)

void	doGravity (SLbool b)

void	doFlipBookTexture (SLbool b)

void	doRotation (SLbool b)

void	doRotRange (SLbool b)

void	doSpeedRange (SLbool b)

void	doShape (SLbool b)

void	doShapeSurface (SLbool b)

void	doShapeOverride (SLbool b)

void	doShapeSpawnBase (SLbool b)

void	doSizeOverLT (SLbool b)

void	doSizeOverLTCurve (SLbool b)

void	doWorldSpace (SLbool b)

void	emitterPos (SLVec3f p)

void	gravity (SLVec3f v)

void	gravity (SLfloat vX, SLfloat vY, SLfloat vZ)

void	flipbookColumns (SLint i)

void	flipbookRows (SLint i)

void	frameRateFB (int i)

void	isGenerated (SLbool b)

void	radiusW (SLfloat f)

void	radiusH (SLfloat f)

void	scale (SLfloat f)

void	speed (SLfloat f)

void	speedRange (SLVec2f v)

void	speedRange (SLfloat vX, SLfloat vY)

void	shapeType (SLShapeType st)

void	shapeAngle (SLfloat f)

void	shapeRadius (SLfloat r)

void	shapeScale (SLVec3f v)

void	shapeScale (SLfloat vX, SLfloat vY, SLfloat vZ)

void	shapeHeight (SLfloat f)

void	shapeWidth (SLfloat f)

void	timeToLive (SLfloat f)

void	textureFirst (SLGLTexture *t)

void	textureFlipbook (SLGLTexture *t)

void	velocityType (SLint i)

void	velocityConst (SLVec3f v)

void	velocityConst (SLfloat vX, SLfloat vY, SLfloat vZ)

void	velocityRndMin (SLVec3f v)

void	velocityRndMin (SLfloat vX, SLfloat vY, SLfloat vZ)

void	velocityRndMax (SLVec3f v)

void	velocityRndMax (SLfloat vX, SLfloat vY, SLfloat vZ)

Public Member Functions inherited from SLMesh
	SLMesh (SLAssetManager *assetMgr, const SLstring &name="Mesh")

	~SLMesh () override
	The destructor deletes everything by calling deleteData. More...

virtual void	init (SLNode *node)
	SLMesh::shapeInit sets the transparency flag of the AABB. More...

virtual void	draw (SLSceneView sv, SLNode node)

void	drawIntoDepthBuffer (SLSceneView sv, SLNode node, SLMaterial *depthMat)
	Simplified drawing method for shadow map creation. More...

void	addStats (SLNodeStats &stats)

virtual void	buildAABB (SLAABBox &aabb, const SLMat4f &wmNode)

void	updateAccelStruct ()

SLbool	hit (SLRay ray, SLNode node)

virtual void	preShade (SLRay *ray)

virtual void	deleteData ()
	SLMesh::deleteData deletes all mesh data and vbo's. More...

virtual void	deleteDataGpu ()

void	deleteSelected (SLNode *node)
	Deletes the rectangle selected vertices and the dependent triangles. More...

void	deleteUnused ()
	Deletes unused vertices (= vertices that are not indexed in I16 or I32) More...

virtual void	calcMinMax ()

virtual void	calcNormals ()
	SLMesh::calcNormals recalculates vertex normals for triangle meshes. More...

void	calcCenterRad (SLVec3f &center, SLfloat &radius)

SLbool	hitTriangleOS (SLRay ray, SLNode node, SLuint iT)

virtual void	generateVAO (SLGLVertexArray &vao)
	Generate the Vertex Array Object for a specific shader program. More...

void	computeHardEdgesIndices (float angleRAD, float epsilon)
	computes the hard edges and stores the vertex indexes separately More...

void	transformSkin (const std::function< void(SLMesh *)> &cbInformNodes)
	Transforms the vertex positions and normals with by joint weights. More...

void	deselectPartialSelection ()

SLMaterial *	mat () const

SLMaterial *	matOut () const

SLGLPrimitiveType	primitive () const

const SLAnimSkeleton *	skeleton () const

SLuint	numI () const

SLGLVertexArray &	vao ()

SLbool	isSelected () const

SLfloat	edgeAngleDEG () const

SLfloat	edgeWidth () const

SLCol4f	edgeColor () const

SLVec3f	finalP (SLuint i)

SLVec3f	finalN (SLuint i)

SLbool	accelStructIsOutOfDate ()

void	mat (SLMaterial *m)

void	matOut (SLMaterial *m)

void	primitive (SLGLPrimitiveType pt)

void	skeleton (SLAnimSkeleton *skel)

void	isSelected (bool isSelected)

void	edgeWidth (SLfloat ew)

void	edgeAngleDEG (SLfloat ea)

void	edgeColor (const SLCol4f &ec)

void	vertexPosEpsilon (SLfloat eps)

Public Member Functions inherited from SLObject
	SLObject (const SLstring &Name="", const SLstring &url="")

virtual	~SLObject ()

void	name (const SLstring &Name)

void	url (const SLstring &url)

const SLstring &	name () const

const SLstring &	url () const

Private Member Functions
SLVec3f	getPointInSphere (float radius, SLVec3f randomX)
	Function which return a position in a sphere. More...

SLVec3f	getPointOnSphere (float radius, SLVec3f randomX)
	Function which return a position on a sphere. More...

SLVec3f	getDirectionSphere (SLVec3f position)
	Function which return the direction towards the exterior of a sphere. More...

SLVec3f	getPointInBox (SLVec3f boxScale)
	Function which return a position in a box. More...

SLVec3f	getPointOnBox (SLVec3f boxScale)
	Function which return a position on a box. More...

SLVec3f	getDirectionBox (SLVec3f position)
	Function which return the direction towards the exterior of a box. More...

SLVec3f	getPointInCone ()
	Function which return a position in the cone define in the particle system. More...

SLVec3f	getPointOnCone ()
	Function which return a position on the cone define in the particle system. More...

SLVec3f	getDirectionCone (SLVec3f position)
	Function which return a direction following the cone shape. More...

SLVec3f	getPointInPyramid ()
	Function which return a position in the pyramid define in the particle system. More...

SLVec3f	getPointOnPyramid ()
	Function which return a position on the pyramid define in the particle system. More...

SLVec3f	getDirectionPyramid (SLVec3f position)
	Function which return a direction following the pyramid shape. More...

Private Attributes
SLint	_amount
	Amount of a particle. More...

SLVec3f	_emitterPos
	Position of the particle emitter. More...

SLfloat	_timeToLive
	Time to live of a particle. More...

SLfloat	_radiusW = 0.4f
	width radius of a particle More...

SLfloat	_radiusH = 0.4f
	height radius of a particle More...

SLfloat	_scale = 1.0f
	Scale of a particle (Scale the radius) More...

SLVec4f	_bernsteinPYAlpha = SLVec4f(2.0f, -3.0f, 0.0f, 1.0f)
	Vector for bezier curve (default linear function) More...

float	_bezierControlPointAlpha [4] = {0.0f, 1.0f, 1.0f, 0.0f}
	Floats for bezier curve control points (P1: 01 ; P2: 23) More...

float	_bezierStartEndPointAlpha [4] = {0.0f, 1.0f, 1.0f, 0.0f}
	Floats for bezier curve end start points (Start: 01 ; End: 23) More...

SLVec4f	_bernsteinPYSize = SLVec4f(-1.4f, 1.8f, 0.6f, 0.0f)
	Vector for bezier curve (default linear function) More...

float	_bezierControlPointSize [4] = {0.0f, 0.0f, 1.0f, 1.0f}
	Floats for bezier curve control points (P1: 01 ; P2: 23) More...

float	_bezierStartEndPointSize [4] = {0.0f, 0.0f, 1.0f, 1.0f}
	Floats for bezier curve end start points (Start: 01 ; End: 23) More...

SLVec3f	_acceleration = SLVec3f(1, 1, 1)
	Vector for acceleration (different direction as the velocity) More...

SLfloat	_accelerationConst = 0.0f
	Acceleration constant (same direction as the velocity) More...

SLVec3f	_gravity = SLVec3f(0.0f, -9.81f, 0.0f)
	Vector for gravity (2nd. acceleration vector) More...

SLVec3f	_velocityConst = SLVec3f(0, 1, 0)
	Velocity constant (go in xyz direction) More...

SLVec3f	_velocityRndMin = SLVec3f(-1, -1, -1)
	Min. random velocity. More...

SLVec3f	_velocityRndMax = SLVec3f(1, 1, 1)
	Max. random velocity. More...

SLVec3f	_direction = SLVec3f(0, 0, 0)
	Direction of particle. More...

SLfloat	_speed = 1.0f
	Speed of particle. More...

SLVec2f	_speedRange = SLVec2f(1, 2)
	Speed random between two value. More...

SLCol4f	_color = SLCol4f(0.66f, 0.0f, 0.66f, 0.2f)
	Color for particle. More...

SLfloat	_colorArr [256 *3]
	Color values of color gradient widget. More...

SLVColorLUTPoint	_colorPoints

int	_drawBuf = 0
	Color gradient points. More...

int	_flipbookFPS = 16
	Number of update of flipbook by second. More...

float	_flipboookLastUpdate = 0.0f
	Last time flipbook was updated. More...

SLint	_flipbookColumns = 8
	Number of flipbook sub-textures by column. More...

SLint	_flipbookRows = 8
	Number of flipbook sub-textures by row. More...

AvgFloat	_updateTime
	Averaged time for updating in MS. More...

AvgFloat	_drawTime
	Averaged time for drawing in MS. More...

SLfloat	_startDrawTimeMS = 0.0f
	Time since start of draw in MS. More...

SLfloat	_startUpdateTimeMS = 0.0f
	Time since start for updating in MS. More...

SLfloat	_startUpdateTimeS = 0.0f
	Time since start for updating in S. More...

SLfloat	_deltaTimeUpdateS = 0.0f
	Delta time in between two frames S. More...

SLfloat	_notVisibleTimeS = 0.0f
	Time since start when node not visible in S. More...

SLfloat	_lastTimeBeforePauseS = 0.0f
	Time since the particle system is paused. More...

SLfloat	_shapeRadius = 1.0f
	Radius of sphere and cone shape. More...

SLVec3f	_shapeScale = SLVec3f(1.0f)
	Scale of box shape. More...

SLfloat	_shapeHeight = 3.0f
	Height of cone and pyramid shapes. More...

SLfloat	_shapeAngle = 10.0f
	Angle of cone and pyramid shapes. More...

SLfloat	_shapeWidth = 2.0f
	Width of pyramid shape. More...

SLfloat	_angularVelocityConst = 30.0f
	Rotation rate const (change in angular rotation divide by change in time) More...

SLVec2f	_angularVelocityRange = SLVec2f(-30.0f, 30.0f)
	Rotation rate range (change in angular rotation divide by change in time) More...

SLBillboardType	_billboardType = BT_Camera
	Billboard type (BT_Camera, BT_Vertical, BT_Horizontal. More...

SLShapeType	_shapeType = ST_Sphere
	Shape type (ST_) More...

SLint	_velocityType = 0
	Velocity type. More...

SLGLTexture *	_textureFirst
	Main texture of PS (non flipbook) More...

SLGLTexture *	_textureFlipbook
	Flipbook texture with e.g. multiple flames at subsequent frames. More...

SLGLVertexArray	_vao1
	First OpenGL Vertex Array Object for swapping between updating/drawing. More...

SLGLVertexArray	_vao2
	Second OpenGL Vertex Array Object for swapping between updating/drawing. More...

SLbool	_isVisibleInFrustum = true
	Boolean to set time since node not visible. More...

SLbool	_isPaused = false
	Boolean to stop updating. More...

SLbool	_isGenerated = false
	Boolean to generate particle system and load it on the GPU. More...

SLbool	_doBlendBrightness = false
	Boolean for glow/brightness on pixel with many particle. More...

SLbool	_doDirectionSpeed = false
	Boolean for direction and speed (override velocity) More...

SLbool	_doSpeedRange = false
	Boolean for speed range. More...

SLbool	_doCounterGap = true
	Boolean for counter lag/gap, can create flickering with few particle (explained in documentation) when enable. More...

SLbool	_doAcceleration = false
	Boolean for acceleration. More...

SLbool	_doAccDiffDir = false
	Boolean for acceleration (different direction) More...

SLbool	_doRotation = true
	Boolean for rotation. More...

SLbool	_doRotRange = false
	Boolean for rotation range (random value between range) More...

SLbool	_doColor = true
	Boolean for color. More...

SLbool	_doShape = false
	Boolean for shape feature. More...

SLbool	_doShapeSurface = false
	Boolean for shape surface (particle will be spawned on surface) More...

SLbool	_doShapeOverride = false
	Boolean for override direction for shape direction. More...

SLbool	_doShapeSpawnBase = false
	Boolean for spawn at base of shape (for cone and pyramid) More...

SLbool	_doWorldSpace = false
	Boolean for world space position. More...

SLbool	_doGravity = false
	Boolean for gravity. More...

SLbool	_doAlphaOverLT = true
	Boolean for alpha over life time. More...

SLbool	_doColorOverLT = false
	Boolean for color over life time. More...

SLbool	_doAlphaOverLTCurve = false
	Boolean for alpha over life time curve. More...

SLbool	_doSizeOverLT = true
	Boolean for size over life time. More...

SLbool	_doSizeOverLTCurve = false
	Boolean for size over life time curve. More...

SLbool	_doFlipBookTexture = false
	Boolean for flipbook texture. More...

Additional Inherited Members
Static Public Member Functions inherited from SLMesh
static void	calcTex3DMatrix (SLNode *node)

Public Attributes inherited from SLMesh
SLVVec3f	P
	Vector for vertex positions layout (location = 0) More...

SLVVec3f	N
	Vector for vertex normals (opt.) layout (location = 1) More...

SLVVec2f	UV [2]
	Array of 2 Vectors for tex. coords. (opt.) layout (location = 2) More...

SLVCol4f	C
	Vector of vertex colors (opt.) layout (location = 4) More...

SLVVec4f	T
	Vector of vertex tangents (opt.) layout (location = 5) More...

SLVVuchar	Ji
	2D Vector of per vertex joint ids (opt.) layout (location = 6) More...

SLVVfloat	Jw
	2D Vector of per vertex joint weights (opt.) layout (location = 7) More...

SLVVec3f	skinnedP
	temp. vector for CPU skinned vertex positions More...

SLVVec3f	skinnedN
	temp. vector for CPU skinned vertex normals More...

SLVushort	I16
	Vector of vertex indices 16 bit. More...

SLVuint	I32
	Vector of vertex indices 32 bit. More...

SLVuint	IS32
	Vector of rectangle selected vertex indices 32 bit. More...

SLVushort	IE16
	Vector of hard edges vertex indices 16 bit (see computeHardEdgesIndices) More...

SLVuint	IE32
	Vector of hard edges vertex indices 32 bit (see computeHardEdgesIndices) More...

SLVec3f	minP
	min. vertex in OS More...

SLVec3f	maxP
	max. vertex in OS More...

Protected Attributes inherited from SLMesh
SLGLPrimitiveType	_primitive
	Primitive type (default triangles) More...

SLMaterial *	_mat
	Pointer to the inside material. More...

SLMaterial *	_matOut
	Pointer to the outside material. More...

SLGLVertexArray	_vao
	Main OpenGL Vertex Array Object for drawing. More...

SLGLVertexArrayExt	_vaoN
	OpenGL VAO for optional normal drawing. More...

SLGLVertexArrayExt	_vaoT
	OpenGL VAO for optional tangent drawing. More...

SLGLVertexArrayExt	_vaoS
	OpenGL VAO for optional selection drawing. More...

SLbool	_isSelected
	Flag if mesh is partially of fully selected. More...

SLfloat	_edgeAngleDEG
	Edge crease angle in degrees between face normals (30 deg. default) More...

SLfloat	_edgeWidth
	Line width for hard edge drawing. More...

SLCol4f	_edgeColor
	Color for hard edge drawing. More...

SLfloat	_vertexPosEpsilon
	Vertex position epsilon used in computeHardEdgesIndices. More...

SLbool	_isVolume
	Flag for RT if mesh is a closed volume. More...

SLAccelStruct *	_accelStruct
	KD-tree or uniform grid. More...

SLbool	_accelStructIsOutOfDate
	Flag id accel.struct needs update. More...

SLAnimSkeleton *	_skeleton
	The skeleton this mesh is bound to. More...

SLVMat4f	_jointMatrices
	Joint matrix vector for this mesh. More...

SLVVec3f *	_finalP
	Pointer to final vertex position vector. More...

SLVVec3f *	_finalN
	pointer to final vertex normal vector More...

Protected Attributes inherited from SLObject
SLstring	_name
	name of an object More...

SLstring	_url
	uniform resource locator More...

Detailed Description

SLParticleSystem creates a particle meshes from a point primitive buffer.

The SLParticleSystem mesh object of which the vertices are drawn as points. An OpenGL transform feedback buffer is used to update the particle positions on the GPU and a geometry shader is used the create two triangles per particle vertex and orient them as a billboard to the viewer. Geometry shaders are only supported under OpenGL >= 4.0 and OpenGL ES >= 3.2. This is the case on most desktop systems and on Android SDK > 24 but not on iOS which has only OpenGL ES 3.0.
. The particle system supports many options of which many can be turned on the do* methods. All options can also be modified in the UI when the mesh is selected. See the different demo scenes in the app_demo_slproject under the demo scene group Particle Systems.

Constructor & Destructor Documentation

◆ SLParticleSystem()

SLParticleSystem::SLParticleSystem	(	SLAssetManager *	assetMgr,
		const SLint	amount,
		const SLVec3f &	velocityRandomStart,
		const SLVec3f &	velocityRandomEnd,
		const SLfloat &	timeToLive,
		SLGLTexture *	texC,
		const SLstring &	name = `"Particle system"`,
		SLGLTexture *	texFlipbook = `nullptr`
	)

SLParticleSystem ctor with some initial values. The number of particles.

The particle emitter position, the start and end random value range The time to live of the particle (lifetime). A texture, a name and a flipbook texture.

Member Function Documentation

◆ accConst()

void SLParticleSystem::accConst ( SLfloat f )

inline

◆ acceleration() [1/3]

SLVec3f SLParticleSystem::acceleration ( )

inline

◆ acceleration() [2/3]

void SLParticleSystem::acceleration	(	SLfloat	vX,
		SLfloat	vY,
		SLfloat	vZ
	)

inline

◆ acceleration() [3/3]

void SLParticleSystem::acceleration ( SLVec3f v )

inline

◆ accelerationConst()

SLfloat SLParticleSystem::accelerationConst ( )

inline

◆ amount() [1/2]

SLint SLParticleSystem::amount ( )

inline

◆ amount() [2/2]

void SLParticleSystem::amount ( SLint i )

inline

◆ angularVelocityConst() [1/2]

SLfloat SLParticleSystem::angularVelocityConst ( )

inline

◆ angularVelocityConst() [2/2]

void SLParticleSystem::angularVelocityConst ( SLfloat f )

inline

◆ angularVelocityRange() [1/3]

SLVec2f SLParticleSystem::angularVelocityRange ( )

inline

◆ angularVelocityRange() [2/3]

void SLParticleSystem::angularVelocityRange	(	SLfloat	vX,
		SLfloat	vY
	)

inline

◆ angularVelocityRange() [3/3]

void SLParticleSystem::angularVelocityRange ( SLVec2f v )

inline

◆ bezierControlPointAlpha() [1/2]

float * SLParticleSystem::bezierControlPointAlpha ( )

inline

◆ bezierControlPointAlpha() [2/2]

void SLParticleSystem::bezierControlPointAlpha ( float arrayPoint[4] )

inline

◆ bezierControlPointSize() [1/2]

float * SLParticleSystem::bezierControlPointSize ( )

inline

◆ bezierControlPointSize() [2/2]

void SLParticleSystem::bezierControlPointSize ( float arrayPoint[4] )

inline

◆ bezierStartEndPointAlpha() [1/2]

float * SLParticleSystem::bezierStartEndPointAlpha ( )

inline

◆ bezierStartEndPointAlpha() [2/2]

void SLParticleSystem::bezierStartEndPointAlpha ( float arrayPoint[4] )

inline

◆ bezierStartEndPointSize() [1/2]

float * SLParticleSystem::bezierStartEndPointSize ( )

inline

◆ bezierStartEndPointSize() [2/2]

void SLParticleSystem::bezierStartEndPointSize ( float arrayPoint[4] )

inline

◆ billboardType() [1/2]

SLBillboardType SLParticleSystem::billboardType ( )

inline

◆ billboardType() [2/2]

void SLParticleSystem::billboardType ( SLBillboardType bt )

inline

◆ buildAABB()

void SLParticleSystem::buildAABB	(	SLAABBox &	aabb,
		const SLMat4f &	wmNode
	)

virtual

SLParticleSystem::buildAABB builds the passed axis-aligned bounding box in OS and updates the min & max points in WS with the passed WM of the node. Take into account features like acceleration, gravity, shape, velocity. SLMesh::buildAABB builds the passed axis-aligned bounding box in OS and updates the min& max points in WS with the passed WM of the node. Todo: Can ben enhance furthermore the acceleration doesn't work wll for the moments The negative value for the acceleration are not take into account and also acceleration which goes against the velocity. To adapt the acceleration to exactly the same as the gravity not enough time to do it. Need to adapt more accurately when direction speed is negative (for shape override example with Cone)

Reimplemented from SLMesh.

◆ changeTexture()

void SLParticleSystem::changeTexture ( )

Change the current use texture, this will switch between the normal texture and the flipbook texture (and vice versa)

◆ color() [1/2]

SLCol4f SLParticleSystem::color ( )

inline

◆ color() [2/2]

void SLParticleSystem::color ( SLCol4f c )

inline

◆ colorArr()

void SLParticleSystem::colorArr ( SLfloat * arr )

inline

◆ colorPoints()

SLVColorLUTPoint & SLParticleSystem::colorPoints ( )

inline

◆ deleteData()

void SLParticleSystem::deleteData ( )

virtual

deleteData deletes all mesh data and VAOs

Reimplemented from SLMesh.

◆ deleteDataGpu()

void SLParticleSystem::deleteDataGpu ( )

virtual

deleteData deletes all mesh data and VAOs

Reimplemented from SLMesh.

◆ direction() [1/3]

SLVec3f SLParticleSystem::direction ( )

inline

◆ direction() [2/3]

void SLParticleSystem::direction	(	SLfloat	vX,
		SLfloat	vY,
		SLfloat	vZ
	)

inline

◆ direction() [3/3]

void SLParticleSystem::direction ( SLVec3f v )

inline

◆ doAcc()

SLbool SLParticleSystem::doAcc ( )

inline

◆ doAccDiffDir() [1/2]

SLbool SLParticleSystem::doAccDiffDir ( )

inline

◆ doAccDiffDir() [2/2]

void SLParticleSystem::doAccDiffDir ( SLbool b )

inline

◆ doAcceleration()

void SLParticleSystem::doAcceleration ( SLbool b )

inline

◆ doAlphaOverLT() [1/2]

SLbool SLParticleSystem::doAlphaOverLT ( )

inline

◆ doAlphaOverLT() [2/2]

void SLParticleSystem::doAlphaOverLT ( SLbool b )

inline

◆ doAlphaOverLTCurve() [1/2]

SLbool SLParticleSystem::doAlphaOverLTCurve ( )

inline

◆ doAlphaOverLTCurve() [2/2]

void SLParticleSystem::doAlphaOverLTCurve ( SLbool b )

inline

◆ doBlendBrightness() [1/2]

SLbool SLParticleSystem::doBlendBrightness ( )

inline

◆ doBlendBrightness() [2/2]

void SLParticleSystem::doBlendBrightness ( SLbool b )

inline

◆ doColor() [1/2]

SLbool SLParticleSystem::doColor ( )

inline

◆ doColor() [2/2]

void SLParticleSystem::doColor ( SLbool b )

inline

◆ doColorOverLT() [1/2]

SLbool SLParticleSystem::doColorOverLT ( )

inline

◆ doColorOverLT() [2/2]

void SLParticleSystem::doColorOverLT ( SLbool b )

inline

◆ doCounterGap() [1/2]

SLbool SLParticleSystem::doCounterGap ( )

inline

◆ doCounterGap() [2/2]

void SLParticleSystem::doCounterGap ( SLbool b )

inline

◆ doDirectionSpeed() [1/2]

SLbool SLParticleSystem::doDirectionSpeed ( )

inline

◆ doDirectionSpeed() [2/2]

void SLParticleSystem::doDirectionSpeed ( SLbool b )

inline

◆ doFlipBookTexture() [1/2]

SLbool SLParticleSystem::doFlipBookTexture ( )

inline

◆ doFlipBookTexture() [2/2]

void SLParticleSystem::doFlipBookTexture ( SLbool b )

inline

◆ doGravity() [1/2]

SLbool SLParticleSystem::doGravity ( )

inline

◆ doGravity() [2/2]

void SLParticleSystem::doGravity ( SLbool b )

inline

◆ doRotation() [1/2]

SLbool SLParticleSystem::doRotation ( )

inline

◆ doRotation() [2/2]

void SLParticleSystem::doRotation ( SLbool b )

inline

◆ doRotRange() [1/2]

SLbool SLParticleSystem::doRotRange ( )

inline

◆ doRotRange() [2/2]

void SLParticleSystem::doRotRange ( SLbool b )

inline

◆ doShape() [1/2]

SLbool SLParticleSystem::doShape ( )

inline

◆ doShape() [2/2]

void SLParticleSystem::doShape ( SLbool b )

inline

◆ doShapeOverride() [1/2]

SLbool SLParticleSystem::doShapeOverride ( )

inline

◆ doShapeOverride() [2/2]

void SLParticleSystem::doShapeOverride ( SLbool b )

inline

◆ doShapeSpawnBase() [1/2]

SLbool SLParticleSystem::doShapeSpawnBase ( )

inline

◆ doShapeSpawnBase() [2/2]

void SLParticleSystem::doShapeSpawnBase ( SLbool b )

inline

◆ doShapeSurface() [1/2]

SLbool SLParticleSystem::doShapeSurface ( )

inline

◆ doShapeSurface() [2/2]

void SLParticleSystem::doShapeSurface ( SLbool b )

inline

◆ doSizeOverLT() [1/2]

SLbool SLParticleSystem::doSizeOverLT ( )

inline

◆ doSizeOverLT() [2/2]

void SLParticleSystem::doSizeOverLT ( SLbool b )

inline

◆ doSizeOverLTCurve() [1/2]

SLbool SLParticleSystem::doSizeOverLTCurve ( )

inline

◆ doSizeOverLTCurve() [2/2]

void SLParticleSystem::doSizeOverLTCurve ( SLbool b )

inline

◆ doSpeedRange() [1/2]

SLbool SLParticleSystem::doSpeedRange ( )

inline

◆ doSpeedRange() [2/2]

void SLParticleSystem::doSpeedRange ( SLbool b )

inline

◆ doWorldSpace() [1/2]

SLbool SLParticleSystem::doWorldSpace ( )

inline

◆ doWorldSpace() [2/2]

void SLParticleSystem::doWorldSpace ( SLbool b )

inline

◆ draw()

void SLParticleSystem::draw	(	SLSceneView *	sv,
		SLNode *	node
	)

virtual

Draw function override from SLMesh. In this function I start by generate the particle and programs if they are not, then I check if the particle have been culled by the frustum culling or if they have been resumed by the user. After I update the particle in the update pass, then and finally I draw them.

Reimplemented from SLMesh.

◆ drawTime()

AvgFloat & SLParticleSystem::drawTime ( )

inline

◆ emitterPos() [1/2]

SLVec3f SLParticleSystem::emitterPos ( ) const

inline

◆ emitterPos() [2/2]

void SLParticleSystem::emitterPos ( SLVec3f p )

inline

◆ flipbookColumns() [1/2]

SLint SLParticleSystem::flipbookColumns ( )

inline

◆ flipbookColumns() [2/2]

void SLParticleSystem::flipbookColumns ( SLint i )

inline

◆ flipbookRows() [1/2]

SLint SLParticleSystem::flipbookRows ( )

inline

◆ flipbookRows() [2/2]

void SLParticleSystem::flipbookRows ( SLint i )

inline

◆ frameRateFB() [1/2]

int SLParticleSystem::frameRateFB ( )

inline

◆ frameRateFB() [2/2]

void SLParticleSystem::frameRateFB ( int i )

inline

◆ generate()

void SLParticleSystem::generate ( )

Function which will generate the particles and attributes them to the VAO.

◆ generateBernsteinPAlpha()

void SLParticleSystem::generateBernsteinPAlpha ( )

Generate Bernstein Polynomial with 4 controls points for alpha over life. ContP contains 2 and 3 controls points StatEnd contains 1 and 4 controls points

◆ generateBernsteinPSize()

void SLParticleSystem::generateBernsteinPSize ( )

Generate Bernstein Polynomial with 4 controls points for size over life. ContP contains 2 and 3 controls points StatEnd contains 1 and 4 controls points

◆ getDirectionBox()

SLVec3f SLParticleSystem::getDirectionBox ( SLVec3f position )

private

Function which return the direction towards the exterior of a box.

◆ getDirectionCone()

SLVec3f SLParticleSystem::getDirectionCone ( SLVec3f position )

private

Function which return a direction following the cone shape.

◆ getDirectionPyramid()

SLVec3f SLParticleSystem::getDirectionPyramid ( SLVec3f position )

private

Function which return a direction following the pyramid shape.

◆ getDirectionSphere()

SLVec3f SLParticleSystem::getDirectionSphere ( SLVec3f position )

private

Function which return the direction towards the exterior of a sphere.

◆ getPointInBox()

SLVec3f SLParticleSystem::getPointInBox ( SLVec3f boxScale )

private

Function which return a position in a box.

◆ getPointInCone()

SLVec3f SLParticleSystem::getPointInCone ( )

private

Function which return a position in the cone define in the particle system.

◆ getPointInPyramid()

SLVec3f SLParticleSystem::getPointInPyramid ( )

private

Function which return a position in the pyramid define in the particle system.

◆ getPointInSphere()

SLVec3f SLParticleSystem::getPointInSphere	(	float	radius,
		SLVec3f	randomX
	)

private

Function which return a position in a sphere.

◆ getPointOnBox()

SLVec3f SLParticleSystem::getPointOnBox ( SLVec3f boxScale )

private

Function which return a position on a box.

◆ getPointOnCone()

SLVec3f SLParticleSystem::getPointOnCone ( )

private

Function which return a position on the cone define in the particle system.

◆ getPointOnPyramid()

SLVec3f SLParticleSystem::getPointOnPyramid ( )

private

Function which return a position on the pyramid define in the particle system.

◆ getPointOnSphere()

SLVec3f SLParticleSystem::getPointOnSphere	(	float	radius,
		SLVec3f	randomX
	)

private

Function which return a position on a sphere.

◆ gravity() [1/3]

SLVec3f SLParticleSystem::gravity ( )

inline

◆ gravity() [2/3]

void SLParticleSystem::gravity	(	SLfloat	vX,
		SLfloat	vY,
		SLfloat	vZ
	)

inline

◆ gravity() [3/3]

void SLParticleSystem::gravity ( SLVec3f v )

inline

◆ isGenerated() [1/2]

SLbool SLParticleSystem::isGenerated ( )

inline

◆ isGenerated() [2/2]

void SLParticleSystem::isGenerated ( SLbool b )

inline

◆ isPaused()

SLbool SLParticleSystem::isPaused ( )

inline

◆ pauseOrResume()

void SLParticleSystem::pauseOrResume ( )

Function called by the user to pause or resume the particle system. This will freeze the particle system there won't be any updating, only the drawing

◆ radiusH() [1/2]

SLfloat SLParticleSystem::radiusH ( )

inline

◆ radiusH() [2/2]

void SLParticleSystem::radiusH ( SLfloat f )

inline

◆ radiusW() [1/2]

SLfloat SLParticleSystem::radiusW ( )

inline

◆ radiusW() [2/2]

void SLParticleSystem::radiusW ( SLfloat f )

inline

◆ scale() [1/2]

SLfloat SLParticleSystem::scale ( )

inline

◆ scale() [2/2]

void SLParticleSystem::scale ( SLfloat f )

inline

◆ setNotVisibleInFrustum()

void SLParticleSystem::setNotVisibleInFrustum ( )

Function called inside SLNode cull3DRec(..) which flags the particle system to be not visible in the view frustum. This is needed to correct later the start time of the PS when it reappears again.

◆ shapeAngle() [1/2]

SLfloat SLParticleSystem::shapeAngle ( )

inline

◆ shapeAngle() [2/2]

void SLParticleSystem::shapeAngle ( SLfloat f )

inline

◆ shapeHeight() [1/2]

SLfloat SLParticleSystem::shapeHeight ( )

inline

◆ shapeHeight() [2/2]

void SLParticleSystem::shapeHeight ( SLfloat f )

inline

◆ shapeRadius() [1/2]

SLfloat SLParticleSystem::shapeRadius ( )

inline

◆ shapeRadius() [2/2]

void SLParticleSystem::shapeRadius ( SLfloat r )

inline

◆ shapeScale() [1/3]

SLVec3f SLParticleSystem::shapeScale ( )

inline

◆ shapeScale() [2/3]

void SLParticleSystem::shapeScale	(	SLfloat	vX,
		SLfloat	vY,
		SLfloat	vZ
	)

inline

◆ shapeScale() [3/3]

void SLParticleSystem::shapeScale ( SLVec3f v )

inline

◆ shapeType() [1/2]

SLShapeType SLParticleSystem::shapeType ( )

inline

◆ shapeType() [2/2]

void SLParticleSystem::shapeType ( SLShapeType st )

inline

◆ shapeWidth() [1/2]

SLfloat SLParticleSystem::shapeWidth ( )

inline

◆ shapeWidth() [2/2]

void SLParticleSystem::shapeWidth ( SLfloat f )

inline

◆ speed() [1/2]

SLfloat SLParticleSystem::speed ( )

inline

◆ speed() [2/2]

void SLParticleSystem::speed ( SLfloat f )

inline

◆ speedRange() [1/3]

SLVec2f SLParticleSystem::speedRange ( )

inline

◆ speedRange() [2/3]

void SLParticleSystem::speedRange	(	SLfloat	vX,
		SLfloat	vY
	)

inline

◆ speedRange() [3/3]

void SLParticleSystem::speedRange ( SLVec2f v )

inline

◆ textureFirst() [1/2]

SLGLTexture * SLParticleSystem::textureFirst ( )

inline

◆ textureFirst() [2/2]

void SLParticleSystem::textureFirst ( SLGLTexture * t )

inline

◆ textureFlipbook() [1/2]

SLGLTexture * SLParticleSystem::textureFlipbook ( )

inline

◆ textureFlipbook() [2/2]

void SLParticleSystem::textureFlipbook ( SLGLTexture * t )

inline

◆ timeToLive() [1/2]

SLfloat SLParticleSystem::timeToLive ( )

inline

◆ timeToLive() [2/2]

void SLParticleSystem::timeToLive ( SLfloat f )

inline

◆ updateTime()

AvgFloat & SLParticleSystem::updateTime ( )

inline

◆ velocityConst() [1/3]

SLVec3f SLParticleSystem::velocityConst ( )

inline

◆ velocityConst() [2/3]

void SLParticleSystem::velocityConst	(	SLfloat	vX,
		SLfloat	vY,
		SLfloat	vZ
	)

inline

◆ velocityConst() [3/3]

void SLParticleSystem::velocityConst ( SLVec3f v )

inline

◆ velocityRndMax() [1/3]

SLVec3f SLParticleSystem::velocityRndMax ( )

inline

◆ velocityRndMax() [2/3]

void SLParticleSystem::velocityRndMax	(	SLfloat	vX,
		SLfloat	vY,
		SLfloat	vZ
	)

inline

◆ velocityRndMax() [3/3]

void SLParticleSystem::velocityRndMax ( SLVec3f v )

inline

◆ velocityRndMin() [1/3]

SLVec3f SLParticleSystem::velocityRndMin ( )

inline

◆ velocityRndMin() [2/3]

void SLParticleSystem::velocityRndMin	(	SLfloat	vX,
		SLfloat	vY,
		SLfloat	vZ
	)

inline

◆ velocityRndMin() [3/3]

void SLParticleSystem::velocityRndMin ( SLVec3f v )

inline

◆ velocityType() [1/2]

SLint SLParticleSystem::velocityType ( )

inline

◆ velocityType() [2/2]

void SLParticleSystem::velocityType ( SLint i )

inline

Member Data Documentation

◆ _acceleration

SLVec3f SLParticleSystem::_acceleration = SLVec3f(1, 1, 1)

private

Vector for acceleration (different direction as the velocity)

◆ _accelerationConst

SLfloat SLParticleSystem::_accelerationConst = 0.0f

private

Acceleration constant (same direction as the velocity)

◆ _amount

SLint SLParticleSystem::_amount

private

Amount of a particle.

◆ _angularVelocityConst

SLfloat SLParticleSystem::_angularVelocityConst = 30.0f

private

Rotation rate const (change in angular rotation divide by change in time)

◆ _angularVelocityRange

SLVec2f SLParticleSystem::_angularVelocityRange = SLVec2f(-30.0f, 30.0f)

private

Rotation rate range (change in angular rotation divide by change in time)

◆ _bernsteinPYAlpha

SLVec4f SLParticleSystem::_bernsteinPYAlpha = SLVec4f(2.0f, -3.0f, 0.0f, 1.0f)

private

Vector for bezier curve (default linear function)

◆ _bernsteinPYSize

SLVec4f SLParticleSystem::_bernsteinPYSize = SLVec4f(-1.4f, 1.8f, 0.6f, 0.0f)

private

Vector for bezier curve (default linear function)

◆ _bezierControlPointAlpha

float SLParticleSystem::_bezierControlPointAlpha[4] = {0.0f, 1.0f, 1.0f, 0.0f}

private

Floats for bezier curve control points (P1: 01 ; P2: 23)

◆ _bezierControlPointSize

float SLParticleSystem::_bezierControlPointSize[4] = {0.0f, 0.0f, 1.0f, 1.0f}

private

Floats for bezier curve control points (P1: 01 ; P2: 23)

◆ _bezierStartEndPointAlpha

float SLParticleSystem::_bezierStartEndPointAlpha[4] = {0.0f, 1.0f, 1.0f, 0.0f}

private

Floats for bezier curve end start points (Start: 01 ; End: 23)

◆ _bezierStartEndPointSize

float SLParticleSystem::_bezierStartEndPointSize[4] = {0.0f, 0.0f, 1.0f, 1.0f}

private

Floats for bezier curve end start points (Start: 01 ; End: 23)

◆ _billboardType

SLBillboardType SLParticleSystem::_billboardType = BT_Camera

private

Billboard type (BT_Camera, BT_Vertical, BT_Horizontal.

◆ _color

SLCol4f SLParticleSystem::_color = SLCol4f(0.66f, 0.0f, 0.66f, 0.2f)

private

Color for particle.

◆ _colorArr

SLfloat SLParticleSystem::_colorArr[256 *3]

private

Color values of color gradient widget.

◆ _colorPoints

SLVColorLUTPoint SLParticleSystem::_colorPoints

private

◆ _deltaTimeUpdateS

SLfloat SLParticleSystem::_deltaTimeUpdateS = 0.0f

private

Delta time in between two frames S.

◆ _direction

SLVec3f SLParticleSystem::_direction = SLVec3f(0, 0, 0)

private

Direction of particle.

◆ _doAccDiffDir

SLbool SLParticleSystem::_doAccDiffDir = false

private

Boolean for acceleration (different direction)

◆ _doAcceleration

SLbool SLParticleSystem::_doAcceleration = false

private

Boolean for acceleration.

◆ _doAlphaOverLT

SLbool SLParticleSystem::_doAlphaOverLT = true

private

Boolean for alpha over life time.

◆ _doAlphaOverLTCurve

SLbool SLParticleSystem::_doAlphaOverLTCurve = false

private

Boolean for alpha over life time curve.

◆ _doBlendBrightness

SLbool SLParticleSystem::_doBlendBrightness = false

private

Boolean for glow/brightness on pixel with many particle.

◆ _doColor

SLbool SLParticleSystem::_doColor = true

private

Boolean for color.

◆ _doColorOverLT

SLbool SLParticleSystem::_doColorOverLT = false

private

Boolean for color over life time.

◆ _doCounterGap

SLbool SLParticleSystem::_doCounterGap = true

private

Boolean for counter lag/gap, can create flickering with few particle (explained in documentation) when enable.

◆ _doDirectionSpeed

SLbool SLParticleSystem::_doDirectionSpeed = false

private

Boolean for direction and speed (override velocity)

◆ _doFlipBookTexture

SLbool SLParticleSystem::_doFlipBookTexture = false

private

Boolean for flipbook texture.

◆ _doGravity

SLbool SLParticleSystem::_doGravity = false

private

Boolean for gravity.

◆ _doRotation

SLbool SLParticleSystem::_doRotation = true

private

Boolean for rotation.

◆ _doRotRange

SLbool SLParticleSystem::_doRotRange = false

private

Boolean for rotation range (random value between range)

◆ _doShape

SLbool SLParticleSystem::_doShape = false

private

Boolean for shape feature.

◆ _doShapeOverride

SLbool SLParticleSystem::_doShapeOverride = false

private

Boolean for override direction for shape direction.

◆ _doShapeSpawnBase

SLbool SLParticleSystem::_doShapeSpawnBase = false

private

Boolean for spawn at base of shape (for cone and pyramid)

◆ _doShapeSurface

SLbool SLParticleSystem::_doShapeSurface = false

private

Boolean for shape surface (particle will be spawned on surface)

◆ _doSizeOverLT

SLbool SLParticleSystem::_doSizeOverLT = true

private

Boolean for size over life time.

◆ _doSizeOverLTCurve

SLbool SLParticleSystem::_doSizeOverLTCurve = false

private

Boolean for size over life time curve.

◆ _doSpeedRange

SLbool SLParticleSystem::_doSpeedRange = false

private

Boolean for speed range.

◆ _doWorldSpace

SLbool SLParticleSystem::_doWorldSpace = false

private

Boolean for world space position.

◆ _drawBuf

int SLParticleSystem::_drawBuf = 0

private

Color gradient points.

Boolean to switch buffer

◆ _drawTime

AvgFloat SLParticleSystem::_drawTime

private

Averaged time for drawing in MS.

◆ _emitterPos

SLVec3f SLParticleSystem::_emitterPos

private

Position of the particle emitter.

◆ _flipbookColumns

SLint SLParticleSystem::_flipbookColumns = 8

private

Number of flipbook sub-textures by column.

◆ _flipbookFPS

int SLParticleSystem::_flipbookFPS = 16

private

Number of update of flipbook by second.

◆ _flipbookRows

SLint SLParticleSystem::_flipbookRows = 8

private

Number of flipbook sub-textures by row.

◆ _flipboookLastUpdate

float SLParticleSystem::_flipboookLastUpdate = 0.0f

private

Last time flipbook was updated.

◆ _gravity

SLVec3f SLParticleSystem::_gravity = SLVec3f(0.0f, -9.81f, 0.0f)

private

Vector for gravity (2nd. acceleration vector)

◆ _isGenerated

SLbool SLParticleSystem::_isGenerated = false

private

Boolean to generate particle system and load it on the GPU.

◆ _isPaused

SLbool SLParticleSystem::_isPaused = false

private

Boolean to stop updating.

◆ _isVisibleInFrustum

SLbool SLParticleSystem::_isVisibleInFrustum = true

private

Boolean to set time since node not visible.

◆ _lastTimeBeforePauseS

SLfloat SLParticleSystem::_lastTimeBeforePauseS = 0.0f

private

Time since the particle system is paused.

◆ _notVisibleTimeS

SLfloat SLParticleSystem::_notVisibleTimeS = 0.0f

private

Time since start when node not visible in S.

◆ _radiusH

SLfloat SLParticleSystem::_radiusH = 0.4f

private

height radius of a particle

◆ _radiusW

SLfloat SLParticleSystem::_radiusW = 0.4f

private

width radius of a particle

◆ _scale

SLfloat SLParticleSystem::_scale = 1.0f

private

Scale of a particle (Scale the radius)

◆ _shapeAngle

SLfloat SLParticleSystem::_shapeAngle = 10.0f

private

Angle of cone and pyramid shapes.

◆ _shapeHeight

SLfloat SLParticleSystem::_shapeHeight = 3.0f

private

Height of cone and pyramid shapes.

◆ _shapeRadius

SLfloat SLParticleSystem::_shapeRadius = 1.0f

private

Radius of sphere and cone shape.

◆ _shapeScale

SLVec3f SLParticleSystem::_shapeScale = SLVec3f(1.0f)

private

Scale of box shape.

◆ _shapeType

SLShapeType SLParticleSystem::_shapeType = ST_Sphere

private

Shape type (ST_)

◆ _shapeWidth

SLfloat SLParticleSystem::_shapeWidth = 2.0f

private

Width of pyramid shape.

◆ _speed

SLfloat SLParticleSystem::_speed = 1.0f

private

Speed of particle.

◆ _speedRange

SLVec2f SLParticleSystem::_speedRange = SLVec2f(1, 2)

private

Speed random between two value.

◆ _startDrawTimeMS

SLfloat SLParticleSystem::_startDrawTimeMS = 0.0f

private

Time since start of draw in MS.

◆ _startUpdateTimeMS

SLfloat SLParticleSystem::_startUpdateTimeMS = 0.0f

private

Time since start for updating in MS.

◆ _startUpdateTimeS

SLfloat SLParticleSystem::_startUpdateTimeS = 0.0f

private

Time since start for updating in S.

◆ _textureFirst

SLGLTexture* SLParticleSystem::_textureFirst

private

Main texture of PS (non flipbook)

◆ _textureFlipbook

SLGLTexture* SLParticleSystem::_textureFlipbook

private

Flipbook texture with e.g. multiple flames at subsequent frames.

◆ _timeToLive

SLfloat SLParticleSystem::_timeToLive

private

Time to live of a particle.

◆ _updateTime

AvgFloat SLParticleSystem::_updateTime

private

Averaged time for updating in MS.

◆ _vao1

SLGLVertexArray SLParticleSystem::_vao1

private

First OpenGL Vertex Array Object for swapping between updating/drawing.

◆ _vao2

SLGLVertexArray SLParticleSystem::_vao2

private

Second OpenGL Vertex Array Object for swapping between updating/drawing.

◆ _velocityConst

SLVec3f SLParticleSystem::_velocityConst = SLVec3f(0, 1, 0)

private

Velocity constant (go in xyz direction)

◆ _velocityRndMax

SLVec3f SLParticleSystem::_velocityRndMax = SLVec3f(1, 1, 1)

private

Max. random velocity.

◆ _velocityRndMin

SLVec3f SLParticleSystem::_velocityRndMin = SLVec3f(-1, -1, -1)

private

Min. random velocity.

◆ _velocityType

SLint SLParticleSystem::_velocityType = 0

private

Velocity type.

The documentation for this class was generated from the following files:

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SLParticleSystem()

Member Function Documentation

◆ accConst()

◆ acceleration() [1/3]

◆ acceleration() [2/3]

◆ acceleration() [3/3]

◆ accelerationConst()

◆ amount() [1/2]

◆ amount() [2/2]

◆ angularVelocityConst() [1/2]

◆ angularVelocityConst() [2/2]

◆ angularVelocityRange() [1/3]

◆ angularVelocityRange() [2/3]

◆ angularVelocityRange() [3/3]

◆ bezierControlPointAlpha() [1/2]

◆ bezierControlPointAlpha() [2/2]

◆ bezierControlPointSize() [1/2]

◆ bezierControlPointSize() [2/2]

◆ bezierStartEndPointAlpha() [1/2]

◆ bezierStartEndPointAlpha() [2/2]

◆ bezierStartEndPointSize() [1/2]

◆ bezierStartEndPointSize() [2/2]

◆ billboardType() [1/2]

◆ billboardType() [2/2]

◆ buildAABB()

◆ changeTexture()

◆ color() [1/2]

◆ color() [2/2]

◆ colorArr()

◆ colorPoints()

◆ deleteData()

◆ deleteDataGpu()

◆ direction() [1/3]

◆ direction() [2/3]

◆ direction() [3/3]

◆ doAcc()

◆ doAccDiffDir() [1/2]

◆ doAccDiffDir() [2/2]

◆ doAcceleration()

◆ doAlphaOverLT() [1/2]

◆ doAlphaOverLT() [2/2]

◆ doAlphaOverLTCurve() [1/2]

◆ doAlphaOverLTCurve() [2/2]

◆ doBlendBrightness() [1/2]

◆ doBlendBrightness() [2/2]

◆ doColor() [1/2]

◆ doColor() [2/2]

◆ doColorOverLT() [1/2]

◆ doColorOverLT() [2/2]

◆ doCounterGap() [1/2]

◆ doCounterGap() [2/2]

◆ doDirectionSpeed() [1/2]

◆ doDirectionSpeed() [2/2]

◆ doFlipBookTexture() [1/2]

◆ doFlipBookTexture() [2/2]

◆ doGravity() [1/2]

◆ doGravity() [2/2]

◆ doRotation() [1/2]

◆ doRotation() [2/2]

◆ doRotRange() [1/2]

◆ doRotRange() [2/2]

◆ doShape() [1/2]

◆ doShape() [2/2]

◆ doShapeOverride() [1/2]

◆ doShapeOverride() [2/2]

◆ doShapeSpawnBase() [1/2]

◆ doShapeSpawnBase() [2/2]

◆ doShapeSurface() [1/2]

◆ doShapeSurface() [2/2]

◆ doSizeOverLT() [1/2]

◆ doSizeOverLT() [2/2]

◆ doSizeOverLTCurve() [1/2]

◆ doSizeOverLTCurve() [2/2]

◆ doSpeedRange() [1/2]