SLNode represents a node in a hierarchical scene graph. More...

#include <SLNode.h>

Inheritance diagram for SLNode:

Public Member Functions
	SLNode (const SLstring &name="Node")

	SLNode (SLMesh *mesh, const SLstring &name="Node")

	SLNode (SLMesh *mesh, const SLVec3f &translation, const SLstring &name)

	~SLNode () override

virtual void	cull3DRec (SLSceneView *sv)

virtual void	cullChildren3D (SLSceneView *sv)

virtual void	cull2DRec (SLSceneView *sv)

virtual bool	hitRec (SLRay *ray)

virtual void	statsRec (SLNodeStats &stats)

virtual SLNode *	copyRec ()

virtual SLAABBox &	updateAABBRec (SLbool updateAlsoAABBinOS)

virtual void	dumpRec ()

void	setDrawBitsRec (SLuint bit, SLbool state)

void	setPrimitiveTypeRec (SLGLPrimitiveType primitiveType)

virtual void	addMesh (SLMesh *mesh)

virtual void	drawMesh (SLSceneView *sv)
	Draws the single mesh. More...

bool	removeMesh ()
	Returns true if a mesh was assigned and set it to nullptr. More...

bool	removeMesh (SLMesh *mesh)
	Returns true if the passed mesh was assigned and sets it to nullptr. More...

SLint	numChildren ()

void	addChild (SLNode *child)

bool	insertChild (SLNode insertC, SLNode afterC)

void	deleteChildren ()

bool	deleteChild ()

bool	deleteChild (SLNode *child)

bool	deleteChild (const SLstring &name)

bool	removeChild (SLNode *child)
	remove child from vector of children. Removes false if not found, else true. More...

template<typename T >
T *	find (const SLstring &name="", SLbool findRecursive=true)

template<typename T >
T *	findChild (const SLstring &name="", SLbool findRecursive=true)

template<typename T >
deque< T * >	findChildren (const SLstring &name="", SLbool findRecursive=true, SLbool canContain=false)

deque< SLNode * >	findChildren (const SLMesh *mesh, SLbool findRecursive=true)

deque< SLNode * >	findChildren (SLuint drawbit, SLbool findRecursive=true)

SLVec3f	translationOS () const

SLVec3f	forwardOS () const

SLVec3f	rightOS () const

SLVec3f	upOS () const

SLVec3f	axisXOS () const

SLVec3f	axisYOS () const

SLVec3f	axisZOS () const

SLVec3f	translationWS () const

SLVec3f	forwardWS () const

SLVec3f	rightWS () const

SLVec3f	upWS () const

SLVec3f	axisXWS () const

SLVec3f	axisYWS () const

SLVec3f	axisZWS () const

void	translation (const SLVec3f &pos, SLTransformSpace relativeTo=TS_parent)

void	translation (SLfloat x, SLfloat y, SLfloat z, SLTransformSpace relativeTo=TS_parent)

void	rotation (const SLQuat4f &rot, SLTransformSpace relativeTo=TS_parent)

void	rotation (SLfloat angleDeg, const SLVec3f &axis, SLTransformSpace relativeTo=TS_parent)

void	scaling (SLfloat s)

void	scaling (SLfloat x, SLfloat y, SLfloat z)

void	scaling (const SLVec3f &scaling)

void	lookAt (SLfloat targetX, SLfloat targetY, SLfloat targetZ, SLfloat upX=0, SLfloat upY=1, SLfloat upZ=0, SLTransformSpace relativeTo=TS_world)

void	lookAt (const SLVec3f &target, const SLVec3f &up=SLVec3f::AXISY, SLTransformSpace relativeTo=TS_world)

void	translate (const SLVec3f &vec, SLTransformSpace relativeTo=TS_object)

void	translate (SLfloat x, SLfloat y, SLfloat z, SLTransformSpace relativeTo=TS_object)

void	rotate (const SLQuat4f &rot, SLTransformSpace relativeTo=TS_object)

void	rotate (SLfloat angleDeg, const SLVec3f &axis, SLTransformSpace relativeTo=TS_object)

void	rotate (SLfloat angleDeg, SLfloat x, SLfloat y, SLfloat z, SLTransformSpace relativeTo=TS_object)

void	rotateAround (const SLVec3f &point, SLVec3f &axis, SLfloat angleDeg, SLTransformSpace relativeTo=TS_world)

void	scale (SLfloat s)

void	scale (SLfloat x, SLfloat y, SLfloat z)

void	scale (const SLVec3f &scale)

void	scaleToCenter (SLfloat maxDim)

void	setInitialState ()

void	resetToInitialState ()

void	parent (SLNode *p)

void	entityID (SLint entityID)

void	om (const SLMat4f &mat)

void	animation (SLAnimation *a)

void	castsShadows (SLbool castsShadows)

virtual void	needUpdate ()

void	needWMUpdate ()

void	needAABBUpdate ()

void	isSelected (bool isSelected)

void	minLodCoverage (SLfloat minLodCoverage)

void	levelForSM (SLubyte lfsm)

void	onUpdateCB (function< void()> callbackFunc)

SLNode *	parent ()

SLint	depth () const

SLint	entityID () const

const SLMat4f &	om ()

const SLMat4f &	initialOM ()

const SLMat4f &	updateAndGetWM () const

const SLMat4f &	updateAndGetWMI () const

SLDrawBits *	drawBits ()

SLbool	drawBit (SLuint bit)

SLAABBox *	aabb ()

SLAnimation *	animation ()

SLbool	castsShadows ()

SLMesh *	mesh ()

SLVNode &	children ()

const SLAnimSkeleton *	skeleton ()
	Returns the first skeleton found in the meshes. More...

void	updateRec ()

virtual void	doUpdate ()

bool	updateMeshSkins (const std::function< void(SLMesh *)> &cbInformNodes)
	Update all skinned meshes recursively. More...

void	updateMeshAccelStructs ()

void	updateMeshMat (std::function< void(SLMaterial *m)> setMat, bool recursive)
	Updates the mesh material recursively with a material lambda. More...

void	setMeshMat (SLMaterial *mat, bool recursive)
	Set the mesh material recursively. More...

bool	isSelected ()

SLfloat	minLodCoverage ()

SLubyte	levelForSM ()

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

Public Member Functions inherited from SLEventHandler
	SLEventHandler ()

virtual	~SLEventHandler ()

virtual SLbool	onMouseDown (const SLMouseButton button, const SLint x, const SLint y, const SLKey mod)

virtual SLbool	onMouseUp (const SLMouseButton button, const SLint x, const SLint y, const SLKey mod)

virtual SLbool	onMouseMove (const SLMouseButton button, const SLint x, const SLint y, const SLKey mod)

virtual SLbool	onDoubleClick (const SLMouseButton button, const SLint x, const SLint y, const SLKey mod)

virtual SLbool	onMouseWheel (const SLint delta, const SLKey mod)

virtual SLbool	onTouch2Down (const SLint x1, const SLint y1, const SLint x2, const SLint y2)

virtual SLbool	onTouch2Move (const SLint x1, const SLint y1, const SLint x2, const SLint y2)

virtual SLbool	onTouch2Up (const SLint x1, const SLint y1, const SLint x2, const SLint y2)

virtual SLbool	onTouch3Down (const SLint x1, const SLint y1)

virtual SLbool	onTouch3Move (const SLint x1, const SLint y1)

virtual SLbool	onTouch3Up (const SLint x1, const SLint y1)

virtual SLbool	onKeyPress (const SLKey key, const SLKey mod)

virtual SLbool	onKeyRelease (const SLKey key, const SLKey mod)

virtual SLbool	onRotationPYR (const SLfloat pitchRAD, const SLfloat yawRAD, const SLfloat rollRAD)

void	mouseRotationFactor (SLfloat rf)

SLfloat	mouseRotationFactor ()

Static Public Attributes
static SLuint	numWMUpdates = 0
	NO. of calls to updateWMRec per frame. More...

static unsigned int	instanceIndex = 0
	??? More...

Protected Attributes
SLNode *	_parent
	pointer to the parent node More...

SLVNode	_children
	vector of children nodes More...

SLMesh *	_mesh
	pointer to a single mesh More...

SLint	_depth
	depth of the node in a scene tree More...

SLint	_entityID
	ID in the SLVEntity graph for Data Oriented Design. More...

SLMat4f	_om
	object matrix for local transforms More...

SLMat4f	_initialOM
	the initial om state More...

SLMat4f	_wm
	world matrix for world transform More...

SLMat4f	_wmI
	inverse world matrix More...

SLbool	_isWMUpToDate
	is the WM of this node still valid More...

SLbool	_isWMIUpToDate
	is the inverse WM of this node still valid More...

SLbool	_isAABBUpToDate
	is the saved aabb still valid More...

bool	_castsShadows
	flag if meshes of node should cast shadows More...

bool	_isSelected
	flag if node and one or more of its meshes are selected More...

SLDrawBits	_drawBits
	node level drawing flags More...

SLAABBox	_aabb
	axis aligned bounding box More...

SLAnimation *	_animation
	animation of the node More...

SLfloat	_minLodCoverage
	Min. LOD coverage for visibility (0.0 < _minLodCoverage < 1.0) More...

SLubyte	_levelForSM
	Level of LOD to use for shadow mapping (0 = the visible one will be drawn) More...

function< void()>	_onUpdateCB
	Optional lambda callback once per update. More...

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

SLstring	_url
	uniform resource locator More...

Protected Attributes inherited from SLEventHandler
SLfloat	_mouseRotationFactor
	Mouse rotation sensibility. More...

SLfloat	_keyboardDeltaPos
	Delta dist. for keyboard translation. More...

Private Member Functions
void	updateWM () const

template<typename T >
void	findChildrenHelper (const SLstring &name, deque< T * > &list, SLbool findRecursive, SLbool canContain=false)

void	findChildrenHelper (const SLMesh mesh, deque< SLNode > &list, SLbool findRecursive)

void	findChildrenHelper (SLuint drawbit, deque< SLNode * > &list, SLbool findRecursive)

Friends
class	SLSceneView

Detailed Description

SLNode represents a node in a hierarchical scene graph.

SLNode is the most important building block of the scene graph. A node can have 0-N children nodes in the vector _children. With child nodes you can build hierarchical structures. A node without a mesh can act as parent node to group its children. A node without children only makes sense to hold a mesh for visualization. The pointer _parent points to the parent of a child node.

A node can point to a single SLMesh object for the rendering of triangles lines or points meshes. Meshes are stored in the SLAssetManager::_meshes vector. Multiple nodes can point to the same mesh object. The node is therefore not the owner of the meshes and does not delete them. The mesh is drawn by the methods SLNode::drawMesh and alternatively by SLNode::drawRec.

A node can be transformed and has therefore a object matrix (_om) for its local transform. All other matrices such as the world matrix (_wm), the inverse world matrix (_wmI) are derived from the object matrix and automatically generated and updated.

A node can be transformed by one of the various transform functions such as translate(). Many of these functions take an additional parameter 'relativeTo'. This parameter tells the transform function in what space the transformation should be applied in. The available transform spaces are:

TS_World: Space relative to the global world coordinate system.
TS_Parent: Space relative to our parent's transformation.
TS_Object: Space relative to our current node's origin.

A node can implement one of the event handlers defined in the inherited SLEventHandler interface. There is special node called SLTransformNode that acts as a visual gizmo for editing the transform. See the example in the menu Edit of the SLProject demo app.

The SLCamera is derived from the SLNode and implements a camera through which the scene can be viewed (see also SLSceneView). The SLLightSpot and SLLightRect are derived from SLNode and represent light sources in the scene. Cameras and lights can be placed in the scene because of their inheritance of SLNode.

Constructor & Destructor Documentation

◆ SLNode() [1/3]

SLNode::SLNode ( const SLstring & name = "Node" )

explicit

Default constructor just setting the name.

◆ SLNode() [2/3]

SLNode::SLNode	(	SLMesh *	mesh,
		const SLstring &	name = `"Node"`
	)

explicit

Constructor with a mesh pointer and name.

◆ SLNode() [3/3]

SLNode::SLNode	(	SLMesh *	mesh,
		const SLVec3f &	translation,
		const SLstring &	name
	)

explicit

Constructor with a mesh pointer, translation vector and name.

◆ ~SLNode()

SLNode::~SLNode ( )

override

Destructor deletes all children recursively and the animation. The mesh is not deleted. Meshes get deleted at the end by the SLAssetManager vector. The entire scenegraph is deleted by deleting the SLScene::_root3D node. Nodes that are not in the scenegraph will not be deleted at scene destruction.

Member Function Documentation

◆ aabb()

SLAABBox * SLNode::aabb ( )

inline

◆ addChild()

void SLNode::addChild ( SLNode * child )

Adds a child node to the children vector

◆ addMesh()

void SLNode::addMesh ( SLMesh * mesh )

virtual

Simply adds a mesh to its mesh pointer vector of the node.

◆ animation() [1/2]

SLAnimation * SLNode::animation ( )

inline

◆ animation() [2/2]

void SLNode::animation ( SLAnimation * a )

inline

◆ axisXOS()

SLVec3f SLNode::axisXOS ( ) const

inline

Returns the x-axis in object space

◆ axisXWS()

SLVec3f SLNode::axisXWS ( ) const

inline

Returns the x-axis in world space

◆ axisYOS()

SLVec3f SLNode::axisYOS ( ) const

inline

Returns the y-axis in object space

◆ axisYWS()

SLVec3f SLNode::axisYWS ( ) const

inline

Returns the y-axis in world space

◆ axisZOS()

SLVec3f SLNode::axisZOS ( ) const

inline

Returns the z-axis in object space

◆ axisZWS()

SLVec3f SLNode::axisZWS ( ) const

inline

Returns the z-axis in world space

◆ castsShadows() [1/2]

SLbool SLNode::castsShadows ( )

inline

◆ castsShadows() [2/2]

void SLNode::castsShadows ( SLbool castsShadows )

inline

◆ children()

SLVNode & SLNode::children ( )

inline

◆ copyRec()

SLNode * SLNode::copyRec ( )

virtual

Returns a deep copy of the node and its children recursively. The meshes do not get copied.

◆ cull2DRec()

void SLNode::cull2DRec ( SLSceneView * sv )

virtual

Does the 2D frustum culling. If a node is visible its mesh material is added to the SLSceneview::_visibleMaterials2D set and the node to the SLMaterials::nodesVisible2D vector. See also SLSceneView::draw3DGLAll for more details.

◆ cull3DRec()

void SLNode::cull3DRec ( SLSceneView * sv )

virtual

Does the view frustum culling by checking whether the AABB is inside the 3D cameras view frustum. The check is done in world space. If a AABB is visible the nodes children are checked recursively. If a node is visible its mesh material is added to the SLSceneview::_visibleMaterials3D set and the node to the SLMaterials::nodesVisible3D vector. See also SLSceneView::draw3DGLAll for more details.

◆ cullChildren3D()

void SLNode::cullChildren3D ( SLSceneView * sv )

virtual

Reimplemented in SLNodeLOD.

◆ deleteChild() [1/3]

bool SLNode::deleteChild ( )

Deletes the last child in the child vector.

◆ deleteChild() [2/3]

bool SLNode::deleteChild ( const SLstring & name )

Searches for a child with the name 'name' and deletes it.

◆ deleteChild() [3/3]

bool SLNode::deleteChild ( SLNode * child )

Deletes a child from the child vector.

◆ deleteChildren()

void SLNode::deleteChildren ( )

Deletes all child nodes.

◆ depth()

SLint SLNode::depth ( ) const

inline

◆ doUpdate()

virtual void SLNode::doUpdate ( )

inlinevirtual

Reimplemented in SLHorizonNode.

◆ drawBit()

SLbool SLNode::drawBit ( SLuint bit )

inline

◆ drawBits()

SLDrawBits * SLNode::drawBits ( )

inline

◆ drawMesh()

void SLNode::drawMesh ( SLSceneView * sv )

virtual

Draws the single mesh.

Inserts a mesh pointer in the mesh pointer vector after the specified afterM pointer.

Reimplemented in SLKeyframeCamera, SLCamera, SLLightDirect, SLLightRect, SLLightSpot, and SLText.

◆ dumpRec()

void SLNode::dumpRec ( )

virtual

Prints the node name with the names of the meshes recursively

◆ entityID() [1/2]

SLint SLNode::entityID ( ) const

inline

◆ entityID() [2/2]

void SLNode::entityID ( SLint entityID )

inline

◆ find()

template<typename T >

T * SLNode::find	(	const SLstring &	name = `""`,
		SLbool	findRecursive = `true`
	)

SLNode::findChild<T> searches a node tree including the node by a given name.

◆ findChild()

template<typename T >

T * SLNode::findChild	(	const SLstring &	name = `""`,
		SLbool	findRecursive = `true`
	)

SLNode::findChild<T> finds the first child that is of type T or a subclass of T.

◆ findChildren() [1/3]

std::deque< SLNode * > SLNode::findChildren	(	const SLMesh *	mesh,
		SLbool	findRecursive = `true`
	)

Searches for all nodes that contain the provided mesh

◆ findChildren() [2/3]

template<typename T >

deque< T * > SLNode::findChildren	(	const SLstring &	name = `""`,
		SLbool	findRecursive = `true`,
		SLbool	canContain = `false`
	)

SLNode::findChildren<T> finds a list of all children that are of type T or subclasses of T. If a name is specified only nodes with that name are included.

◆ findChildren() [3/3]

deque< SLNode * > SLNode::findChildren	(	SLuint	drawbit,
		SLbool	findRecursive = `true`
	)

Searches for all nodes that contain the provided mesh

◆ findChildrenHelper() [1/3]

void SLNode::findChildrenHelper	(	const SLMesh *	mesh,
		deque< SLNode * > &	list,
		SLbool	findRecursive
	)

private

Helper function of findChildren for the passed mesh pointer

◆ findChildrenHelper() [2/3]

template<typename T >

void SLNode::findChildrenHelper	(	const SLstring &	name,
		deque< T * > &	list,
		SLbool	findRecursive,
		SLbool	canContain = `false`
	)

private

SLNode::findChildrenHelper<T> is the helper function for findChildren<T>. It appends all newly found children to 'list'.

◆ findChildrenHelper() [3/3]

void SLNode::findChildrenHelper	(	SLuint	drawbit,
		deque< SLNode * > &	list,
		SLbool	findRecursive
	)

private

Helper function of findChildren for passed drawing bit

◆ forwardOS()

SLVec3f SLNode::forwardOS ( ) const

inline

Returns the local forward vector (= -z-axis) in a right-hand y-up system

◆ forwardWS()

SLVec3f SLNode::forwardWS ( ) const

inline

SLNode::forward returns worlds forward vector

◆ hitRec()

bool SLNode::hitRec ( SLRay * ray )

virtual

Intersects the nodes meshes with the given ray. The intersection test is only done if the AABB is intersected. The ray-mesh intersection is done in the nodes object space. The rays origin and direction is therefore transformed into the object space.

Reimplemented in SLLightDirect, SLLightRect, SLLightSpot, and SLText.

◆ initialOM()

const SLMat4f & SLNode::initialOM ( )

inline

◆ insertChild()

bool SLNode::insertChild	(	SLNode *	insertC,
		SLNode *	afterC
	)

Inserts a child node in the children vector after the afterC node.

◆ isSelected() [1/2]

bool SLNode::isSelected ( )

inline

◆ isSelected() [2/2]

void SLNode::isSelected ( bool isSelected )

inline

◆ levelForSM() [1/2]

SLubyte SLNode::levelForSM ( )

inline

◆ levelForSM() [2/2]

void SLNode::levelForSM ( SLubyte lfsm )

inline

◆ lookAt() [1/2]

void SLNode::lookAt	(	const SLVec3f &	target,
		const SLVec3f &	up = `SLVec3f::AXISY`,
		SLTransformSpace	relativeTo = `TS_world`
	)

Rotates the object so that it's forward vector is pointing towards the 'target' point. Default forward is -Z. The 'relativeTo' parameter defines in what space the 'target' parameter is to be interpreted in.

◆ lookAt() [2/2]

void SLNode::lookAt	(	SLfloat	targetX,
		SLfloat	targetY,
		SLfloat	targetZ,
		SLfloat	upX = `0`,
		SLfloat	upY = `1`,
		SLfloat	upZ = `0`,
		SLTransformSpace	relativeTo = `TS_world`
	)

inline

◆ mesh()

SLMesh * SLNode::mesh ( )

inline

◆ minLodCoverage() [1/2]

SLfloat SLNode::minLodCoverage ( )

inline

◆ minLodCoverage() [2/2]

void SLNode::minLodCoverage ( SLfloat minLodCoverage )

inline

◆ needAABBUpdate()

void SLNode::needAABBUpdate ( )

Flags this node's AABB for an updateRec. If a node changed we need to updateRec it's world space AABB. This needs to also be propagated up the parent chain since the AABB of a node incorporates the AABB's of child nodes.

◆ needUpdate()

void SLNode::needUpdate ( )

virtual

Flags this node for an updateRec. This function is called automatically if the local transform of the node or of its parent changed. Nodes that are flagged for updating will recalculate their world transform the next time it is requested by updateAndGetWM().

Reimplemented in SLJoint.

◆ needWMUpdate()

void SLNode::needWMUpdate ( )

Flags this node for a wm updateRec. It is almost identical to the needUpdate function but it won't flag AABBs. This function is currently not in use but could give a slight performance boost if it was called instead of needUpdate for the children of a node that changed.

◆ numChildren()

SLint SLNode::numChildren ( )

inline

◆ om() [1/2]

const SLMat4f & SLNode::om ( )

inline

◆ om() [2/2]

void SLNode::om ( const SLMat4f & mat )

inline

◆ onUpdateCB()

void SLNode::onUpdateCB ( function< void()> callbackFunc )

inline

◆ parent() [1/2]

SLNode * SLNode::parent ( )

inline

◆ parent() [2/2]

void SLNode::parent ( SLNode * p )

Sets the parent for this node and updates its depth

◆ removeChild()

bool SLNode::removeChild ( SLNode * child )

remove child from vector of children. Removes false if not found, else true.

◆ removeMesh() [1/2]

bool SLNode::removeMesh ( )

Returns true if a mesh was assigned and set it to nullptr.

◆ removeMesh() [2/2]

bool SLNode::removeMesh ( SLMesh * mesh )

Returns true if the passed mesh was assigned and sets it to nullptr.

◆ resetToInitialState()

void SLNode::resetToInitialState ( )

Resets this object to its initial state

◆ rightOS()

SLVec3f SLNode::rightOS ( ) const

inline

Returns the local right vector (= x-axis) in a right-hand y-up system

◆ rightWS()

SLVec3f SLNode::rightWS ( ) const

inline

SLNode::right returns worlds right vector

◆ rotate() [1/3]

void SLNode::rotate	(	const SLQuat4f &	rot,
		SLTransformSpace	relativeTo = `TS_object`
	)

Rotates the node around its local origin relative to the space expressed by 'relativeTo'.

◆ rotate() [2/3]

void SLNode::rotate	(	SLfloat	angleDeg,
		const SLVec3f &	axis,
		SLTransformSpace	relativeTo = `TS_object`
	)

Rotates the node around its local origin relative to the space expressed by 'relativeTo'.

◆ rotate() [3/3]

void SLNode::rotate	(	SLfloat	angleDeg,
		SLfloat	x,
		SLfloat	y,
		SLfloat	z,
		SLTransformSpace	relativeTo = `TS_object`
	)

inline

◆ rotateAround()

void SLNode::rotateAround	(	const SLVec3f &	point,
		SLVec3f &	axis,
		SLfloat	angleDeg,
		SLTransformSpace	relativeTo = `TS_world`
	)

Rotates the node around an arbitrary point. The 'axis' and 'point' parameter are relative to the space described by 'relativeTo'.

◆ rotation() [1/2]

void SLNode::rotation	(	const SLQuat4f &	rot,
		SLTransformSpace	relativeTo = `TS_parent`
	)

sets the rotation of this node. The axis parameter will be transformed into 'relativeTo' space. So an passing in an axis of (0, 1, 0) with TS_Object will rotate the node around its own up axis.

◆ rotation() [2/2]

void SLNode::rotation	(	SLfloat	angleDeg,
		const SLVec3f &	axis,
		SLTransformSpace	relativeTo = `TS_parent`
	)

sets the rotation of this node. The axis parameter will be transformed into 'relativeTo' space. So a passing in an axis of (0, 1, 0) with TS_Object will rotate the node around its own up axis.

◆ scale() [1/3]

void SLNode::scale ( const SLVec3f & scale )

Adds a scale transform to the current object matrix

Note: this is not a setter but a scale modifier.; this modifier doesn't allow for different transform spaces, so there isn't the possibility for shearing an object currently.

◆ scale() [2/3]

void SLNode::scale ( SLfloat s )

inline

◆ scale() [3/3]

void SLNode::scale	(	SLfloat	x,
		SLfloat	y,
		SLfloat	z
	)

inline

◆ scaleToCenter()

void SLNode::scaleToCenter ( SLfloat maxDim )

Scales and translates the node so that its largest dimension is maxDim and the center is in [0,0,0].

◆ scaling() [1/3]

void SLNode::scaling ( const SLVec3f & scaling )

Sets the scaling of current object matrix

Note: this modifier doesn't allow for different transform spaces, so there isn't the possiblity for shearing an object currently.

◆ scaling() [2/3]

void SLNode::scaling ( SLfloat s )

inline

◆ scaling() [3/3]

void SLNode::scaling	(	SLfloat	x,
		SLfloat	y,
		SLfloat	z
	)

inline

◆ setDrawBitsRec()

void SLNode::setDrawBitsRec	(	SLuint	bit,
		SLbool	state
	)

Recursively sets the specified drawbit on or off. See also SLDrawBits.

◆ setInitialState()

void SLNode::setInitialState ( )

Saves the current position as the initial state

◆ setMeshMat()

void SLNode::setMeshMat	(	SLMaterial *	mat,
		bool	recursive
	)

Set the mesh material recursively.

◆ setPrimitiveTypeRec()

void SLNode::setPrimitiveTypeRec ( SLGLPrimitiveType primitiveType )

Recursively sets the specified OpenGL primitive type.

◆ skeleton()

const SLAnimSkeleton * SLNode::skeleton ( )

Returns the first skeleton found in the meshes.

◆ statsRec()

void SLNode::statsRec ( SLNodeStats & stats )

virtual

Updates the statistic numbers of the passed SLNodeStats struct and calls recursively the same method for all children.

Reimplemented in SLCamera, SLLightDirect, SLLightRect, SLLightSpot, and SLText.

◆ translate() [1/2]

void SLNode::translate	(	const SLVec3f &	delta,
		SLTransformSpace	relativeTo = `TS_object`
	)

Moves the node by the vector 'delta' relative to the space expressed by 'relativeTo'.

◆ translate() [2/2]

void SLNode::translate	(	SLfloat	x,
		SLfloat	y,
		SLfloat	z,
		SLTransformSpace	relativeTo = `TS_object`
	)

inline

◆ translation() [1/2]

void SLNode::translation	(	const SLVec3f &	pos,
		SLTransformSpace	relativeTo = `TS_parent`
	)

sets the position of this node to pos in 'relativeTo' space.

Note: using TS_Object for this function yields the same result as calling translate(pos, TS_Object)

◆ translation() [2/2]

void SLNode::translation	(	SLfloat	x,
		SLfloat	y,
		SLfloat	z,
		SLTransformSpace	relativeTo = `TS_parent`
	)

inline

◆ translationOS()

SLVec3f SLNode::translationOS ( ) const

inline

SLNode::position returns current local position

◆ translationWS()

SLVec3f SLNode::translationWS ( ) const

inline

SLNode::position returns current world position

◆ updateAABBRec()

SLAABBox & SLNode::updateAABBRec ( SLbool updateAlsoAABBinOS )

virtual

Updates the axis aligned bounding box in world space recursively.

Reimplemented in SLText.

◆ updateAndGetWM()

const SLMat4f & SLNode::updateAndGetWM ( ) const

Returns the current world matrix for this node. If the world matrix is out of date it will updateRec it and return a current result.

◆ updateAndGetWMI()

const SLMat4f & SLNode::updateAndGetWMI ( ) const

Returns the current world inverse matrix for this node. If the world matrix is out of date it will updateRec it and return a current result.

◆ updateMeshAccelStructs()

void SLNode::updateMeshAccelStructs ( )

◆ updateMeshMat()

void SLNode::updateMeshMat	(	std::function< void(SLMaterial *m)>	setMat,
		bool	recursive
	)

Updates the mesh material recursively with a material lambda.

◆ updateMeshSkins()

bool SLNode::updateMeshSkins ( const std::function< void(SLMesh *)> & cbInformNodes )

Update all skinned meshes recursively.

Do software skinning on all changed skeletons && updateRec any out of date acceleration structure for RT or if they're being rendered.

◆ updateRec()

void SLNode::updateRec ( )

◆ updateWM()

void SLNode::updateWM ( ) const

private

A helper function that updates the current _wm to reflect the local matrix. recursively calls the updateAndGetWM of the node's parent.

Note: This function is const because it has to be called from inside the updateAndGetWM function which has to be const. Since we only updateRec the private cache of this class it is ok.

◆ upOS()

SLVec3f SLNode::upOS ( ) const

inline

Returns the local up vector in a right-hand y-up system

◆ upWS()

SLVec3f SLNode::upWS ( ) const

inline

SLNode::up returns worlds up vector

Friends And Related Function Documentation

◆ SLSceneView

friend class SLSceneView

friend

Member Data Documentation

◆ _aabb

SLAABBox SLNode::_aabb

protected

axis aligned bounding box

◆ _animation

SLAnimation* SLNode::_animation

protected

animation of the node

◆ _castsShadows

bool SLNode::_castsShadows

protected

flag if meshes of node should cast shadows

◆ _children

SLVNode SLNode::_children

protected

vector of children nodes

◆ _depth

SLint SLNode::_depth

protected

depth of the node in a scene tree

◆ _drawBits

SLDrawBits SLNode::_drawBits

protected

node level drawing flags

◆ _entityID

SLint SLNode::_entityID

protected

ID in the SLVEntity graph for Data Oriented Design.

◆ _initialOM

SLMat4f SLNode::_initialOM

protected

the initial om state

◆ _isAABBUpToDate

SLbool SLNode::_isAABBUpToDate

mutableprotected

is the saved aabb still valid

◆ _isSelected

bool SLNode::_isSelected

protected

flag if node and one or more of its meshes are selected

◆ _isWMIUpToDate

SLbool SLNode::_isWMIUpToDate

mutableprotected

is the inverse WM of this node still valid

◆ _isWMUpToDate

SLbool SLNode::_isWMUpToDate

mutableprotected

is the WM of this node still valid

◆ _levelForSM

SLubyte SLNode::_levelForSM

protected

Level of LOD to use for shadow mapping (0 = the visible one will be drawn)

◆ _mesh

SLMesh* SLNode::_mesh

protected

pointer to a single mesh

◆ _minLodCoverage

SLfloat SLNode::_minLodCoverage

protected

Min. LOD coverage for visibility (0.0 < _minLodCoverage < 1.0)

◆ _om

SLMat4f SLNode::_om

protected

object matrix for local transforms

◆ _onUpdateCB

function<void()> SLNode::_onUpdateCB

protected

Optional lambda callback once per update.

◆ _parent

SLNode* SLNode::_parent

protected

pointer to the parent node

◆ _wm

SLMat4f SLNode::_wm

mutableprotected

world matrix for world transform

◆ _wmI

SLMat4f SLNode::_wmI

mutableprotected

inverse world matrix

◆ instanceIndex

unsigned int SLNode::instanceIndex = 0

static

???

◆ numWMUpdates

SLuint SLNode::numWMUpdates = 0

static

NO. of calls to updateWMRec per frame.

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

Public Member Functions

Static Public Attributes

Protected Attributes

Private Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

◆ SLNode() [1/3]

◆ SLNode() [2/3]

◆ SLNode() [3/3]

◆ ~SLNode()

Member Function Documentation

◆ aabb()

◆ addChild()

◆ addMesh()

◆ animation() [1/2]

◆ animation() [2/2]

◆ axisXOS()

◆ axisXWS()

◆ axisYOS()

◆ axisYWS()

◆ axisZOS()

◆ axisZWS()

◆ castsShadows() [1/2]

◆ castsShadows() [2/2]

◆ children()

◆ copyRec()

◆ cull2DRec()

◆ cull3DRec()

◆ cullChildren3D()

◆ deleteChild() [1/3]

◆ deleteChild() [2/3]

◆ deleteChild() [3/3]

◆ deleteChildren()

◆ depth()

◆ doUpdate()

◆ drawBit()

◆ drawBits()

◆ drawMesh()

◆ dumpRec()

◆ entityID() [1/2]

◆ entityID() [2/2]

◆ find()

◆ findChild()

◆ findChildren() [1/3]

◆ findChildren() [2/3]

◆ findChildren() [3/3]

◆ findChildrenHelper() [1/3]

◆ findChildrenHelper() [2/3]

◆ findChildrenHelper() [3/3]

◆ forwardOS()

◆ forwardWS()

◆ hitRec()

◆ initialOM()

◆ insertChild()

◆ isSelected() [1/2]

◆ isSelected() [2/2]

◆ levelForSM() [1/2]

◆ levelForSM() [2/2]

◆ lookAt() [1/2]

◆ lookAt() [2/2]

◆ mesh()

◆ minLodCoverage() [1/2]

◆ minLodCoverage() [2/2]

◆ needAABBUpdate()

◆ needUpdate()

◆ needWMUpdate()

◆ numChildren()

◆ om() [1/2]

◆ om() [2/2]

◆ onUpdateCB()

◆ parent() [1/2]

◆ parent() [2/2]

◆ removeChild()

◆ removeMesh() [1/2]

◆ removeMesh() [2/2]

◆ resetToInitialState()

◆ rightOS()

◆ rightWS()

◆ rotate() [1/3]