Shadow Nodes are special nodes (not to be confused with. More...

#include <OgreCompositorShadowNode.h>

Inheritance diagram for Ogre::CompositorShadowNode:

Public Types
typedef vector< bool >::type	LightsBitSet

Public Member Functions
	CompositorShadowNode (IdType id, const CompositorShadowNodeDef definition, CompositorWorkspace workspace, RenderSystem renderSys, TextureGpu finalTarget)

virtual	~CompositorShadowNode ()

const CompositorPassVec &	_getPasses () const

void	_notifyCleared ()
	Internal Use. More...

bool	_shouldUpdateShadowMapIdx (uint32 shadowMapIdx) const

void	_update (Camera camera, const Camera lodCamera, SceneManager *sceneManager)
	Renders into the shadow map, executes passes. More...

void	_update (const Camera lodCamera, SceneManager sceneManager)
	Calling this function every frame will cause us to execute all our passes (ie. More...

bool	areAllInputsConnected () const

void	connectBufferTo (size_t outChannelA, CompositorNode *nodeB, size_t inChannelB)
	Connects this node (let's call it node 'A') to node 'B', mapping the output channel from A into the input channel from B (buffer version) More...

void	connectExternalBuffer (UavBufferPacked *buffer, size_t inChannelA)
	Connects (injects) an external buffer into the given channel. More...

void	connectExternalRT (TextureGpu *externalTexture, size_t inChannelA)
	Connects (injects) an external RT into the given channel. More...

void	connectTo (size_t outChannelA, CompositorNode *nodeB, size_t inChannelB)
	Connects this node (let's call it node 'A') to node 'B', mapping the output channel from A into the input channel from B (texture version) More...

void	createPasses ()
	Creates all passes based on our definition. More...

void	destroyAllPasses ()

void	finalTargetResized01 (const TextureGpu *finalTarget) override

virtual void	finalTargetResized02 (const TextureGpu *finalTarget)

const LightsBitSet &	getAffectedLightsBitSet () const

const AxisAlignedBox &	getCastersBox () const
	@See mCastersBox More...

const TextureGpuVec &	getContiguousShadowMapTex () const

UavBufferPacked *	getDefinedBuffer (IdString bufferName) const
	Returns the buffer pointer of a buffer based on it's name. More...

UavBufferPacked *	getDefinedBufferNoThrow (IdString bufferName) const

TextureGpu *	getDefinedTexture (IdString textureName) const
	Returns the texture pointer of a texture based on it's name & mrt index. More...

const CompositorShadowNodeDef *	getDefinition () const

bool	getEnabled () const
	Returns if this instance is enabled. @See setEnabled. More...

IdType	getId () const
	Get the unique id of this object. More...

uint32	getIndexToContiguousShadowMapTex (size_t shadowMapIdx) const

const CompositorChannelVec &	getInputChannel () const

const Light *	getLightAssociatedWith (uint32 shadowMapIdx) const
	Note: May return null if there is no such shadowMapIdx, or if there is no light that could be linked with that shadow map index. More...

const CompositorChannelVec &	getLocalTextures () const

void	getMinMaxDepthRange (const Frustum *shadowMapCamera, Real &outMin, Real &outMax) const
	Outputs the min & max depth range for the given camera. More...

void	getMinMaxDepthRange (size_t shadowMapIdx, Real &outMin, Real &outMax) const

IdString	getName () const

float	getNormalOffsetBias (const size_t shadowMapIdx) const

size_t	getNumActiveShadowCastingLights () const
	The return value may change in the future, which happens when the number of lights changes to or from a value lower than the supported shadow casting lights by the definition. More...

size_t	getPassNumber (CompositorPass *pass) const

const vector< Real >::type *	getPssmBlends (size_t shadowMapIdx) const
	Returns a list of points with the blend band boundaries of the closest N-1 PSSM split in projection space for the given shadow map index. More...

const Real *	getPssmFade (size_t shadowMapIdx) const
	Returns the fade point of the last PSSM split in projection space for the given shadow map index. More...

const vector< Real >::type *	getPssmSplits (size_t shadowMapIdx) const
	Returns a list of points with the limits of each PSSM split in projection space for the given shadow map index. More...

RenderSystem *	getRenderSystem () const

const LightClosestArray &	getShadowCastingLights () const

uint8	getShadowMapLightTypeMask (uint32 shadowMapIdx) const
	Do not call this if isShadowMapIdxActive == false or isShadowMapIdxInValidRange == false. More...

const Matrix4 &	getViewMatrix (size_t shadowMapIdx) const
	Returns the texture view matrix for the given shadow map index. More...

Matrix4	getViewProjectionMatrix (size_t shadowMapIdx) const
	Returns the texture view projection matrix for the given shadow map index. More...

CompositorWorkspace *	getWorkspace ()
	Returns our parent workspace. More...

const CompositorWorkspace *	getWorkspace () const
	Returns our parent workspace. More...

bool	isShadowMapIdxActive (uint32 shadowMapIdx) const
	Returns true if the shadow map index is not active. More...

bool	isShadowMapIdxInValidRange (uint32 shadowMapIdx) const

void	notifyDestroyed (const UavBufferPacked *buffer)

void	notifyDestroyed (TextureGpu *channel)
	Call this function when caller has destroyed a RenderTarget in which the callee may have a reference to that pointer, so that we can clean it up. More...

void	notifyRecreated (const UavBufferPacked oldBuffer, UavBufferPacked newBuffer)

void	notifyRecreated (TextureGpu *channel)
	Call this function when you're replacing the textures from oldChannel with the ones in newChannel. More...

void	operator delete (void *ptr)

void	operator delete (void ptr, const char , int, const char *)

void	operator delete (void ptr, void )

void	operator delete[] (void *ptr)

void	operator delete[] (void ptr, const char , int, const char *)

void *	operator new (size_t sz)

void *	operator new (size_t sz, const char file, int line, const char func)
	operator new, with debug line info More...

void *	operator new (size_t sz, void *ptr)
	placement operator new More...

void *	operator new[] (size_t sz)

void *	operator new[] (size_t sz, const char file, int line, const char func)
	array operator new, with debug line info More...

bool	operator() (const IdObject &left, const IdObject &right)

bool	operator() (const IdObject left, const IdObject right)

void	postInitializePass (CompositorPass *pass) override
	We derive so we can override the camera with ours. More...

void	resetAllNumPassesLeft ()
	Resets the number of passes left for every pass (. More...

void	setEnabled (bool bEnabled)
	Enables or disables all instances of this node. More...

void	setLightFixedToShadowMap (size_t shadowMapIdx, Light *light)
	Marks a shadow map as statically updated, and ties the given light to always use that shadow map. More...

const LightList *	setShadowMapsToPass (Renderable rend, const Pass pass, AutoParamDataSource *autoParamDataSource, size_t startLight)

void	setStaticShadowMapDirty (size_t shadowMapIdx, bool includeLinked=true)
	Tags a static shadow map as dirty, causing Ogre to update it on the next time this Shadow node gets executed. More...

Detailed Description

Shadow Nodes are special nodes (not to be confused with.

See also: CompositorNode) that are only used for rendering shadow maps. Normal Compositor Nodes can share or own a ShadowNode. The ShadowNode will render the scene enough times to fill all shadow maps so the main scene pass can use them.

: ShadowNode are very flexible compared to Ogre 1.x; as they allow mixing multiple shadow camera setups for different lights.

: Shadow Nodes derive from nodes so that they can be used as regular nodes

: During a render with shadow mapping enabled, we render first the Shadow Node's pass, then render the regular scene. In the past there used to be an AABB enclosing all visible objects that receive shadows that was used for calculating the shadow maps. This forced Ogre 2.x to split rendering into two stages: _cullPhase01 & _renderPhase02. This is not needed anymore.

To summarize: a normal rendering flow with shadow map looks like this: shadowNode->setupShadowCamera( normal->getVisibleBoundsInfo() ); shadowNode->_cullPhase01(); shadowNode->_renderPhase02(); normal->_cullPhase01(); normal->_renderPhase02();

: On forward lighting passes, shadow mapping is handled in the following way: 1) Build a list of all lights visible by all cameras (SceneManager does this) 2) Traverse the list to get the closest lights to the current camera. These lights will cast shadows. 3) Build a list of the closest lights for each object (SceneManager does this) 4) Traverse this list and find those that are actually casting a shadow 5) Send to the GPU & engine the list in step 4, but shadow casting lights are put first, then sorted by proximity. See the comments inside the function setShadowMapsToPass for more information.

Author: Matias N. Goldberg

Version: 1.0

Member Typedef Documentation

◆ LightsBitSet

typedef vector<bool>::type Ogre::CompositorShadowNode::LightsBitSet

Constructor & Destructor Documentation

◆ CompositorShadowNode()

Ogre::CompositorShadowNode::CompositorShadowNode	(	IdType	id,
		const CompositorShadowNodeDef *	definition,
		CompositorWorkspace *	workspace,
		RenderSystem *	renderSys,
		TextureGpu *	finalTarget
	)

◆ ~CompositorShadowNode()

virtual Ogre::CompositorShadowNode::~CompositorShadowNode ( )

virtual

Member Function Documentation

◆ _getPasses()

const CompositorPassVec& Ogre::CompositorNode::_getPasses ( ) const

inlineinherited

◆ _notifyCleared()

void Ogre::CompositorNode::_notifyCleared ( )

inherited

Internal Use.

Called when connections are all being zero'ed. We rely our caller is doing this to all nodes, hence we do not notify our @mConnectedNodes nodes. Failing to clear them too may leave dangling pointers or graphical glitches

Remarks: Destroys all of our passes.

◆ _shouldUpdateShadowMapIdx()

bool Ogre::CompositorShadowNode::_shouldUpdateShadowMapIdx ( uint32 shadowMapIdx ) const

◆ _update() [1/2]

void Ogre::CompositorShadowNode::_update	(	Camera *	camera,
		const Camera *	lodCamera,
		SceneManager *	sceneManager
	)

Renders into the shadow map, executes passes.

Parameters

camera Camera used to calculate our shadow camera (in case of directional lights).

◆ _update() [2/2]

void Ogre::CompositorNode::_update	(	const Camera *	lodCamera,
		SceneManager *	sceneManager
	)

inherited

Calling this function every frame will cause us to execute all our passes (ie.

render)

Parameters

lodCamera LOD Camera to be used by our passes. Pointer can be null, and note however passes can ignore this hint and use their own camera pointer for LOD (this parameter is mostly used for syncing shadow mapping).

◆ areAllInputsConnected()

bool Ogre::CompositorNode::areAllInputsConnected ( ) const

inherited

◆ connectBufferTo()

void Ogre::CompositorNode::connectBufferTo	(	size_t	outChannelA,
		CompositorNode *	nodeB,
		size_t	inChannelB
	)

inherited

Connects this node (let's call it node 'A') to node 'B', mapping the output channel from A into the input channel from B (buffer version)

Parameters

outChannelA	Output to use from node A.
inChannelB	Input to connect the output from A.

◆ connectExternalBuffer()

void Ogre::CompositorNode::connectExternalBuffer	(	UavBufferPacked *	buffer,
		size_t	inChannelA
	)

inherited

Connects (injects) an external buffer into the given channel.

Usually used for the 'connect_buffer_external' directive.

Parameters

buffer	The buffer.
inChannelA	In which channel number to inject to.

◆ connectExternalRT()

void Ogre::CompositorNode::connectExternalRT	(	TextureGpu *	externalTexture,
		size_t	inChannelA
	)

inherited

Connects (injects) an external RT into the given channel.

Usually used for the "connect_output" / "connect_external" directive for the RenderWindow.

Parameters

rt	The RenderTarget.
textures	The Textures associated with the RT. Can be empty (eg. RenderWindow) but could cause crashes/exceptions if tried to use in PASS_QUAD passes.
inChannelA	In which channel number to inject to.

◆ connectTo()

void Ogre::CompositorNode::connectTo	(	size_t	outChannelA,
		CompositorNode *	nodeB,
		size_t	inChannelB
	)

inherited

Connects this node (let's call it node 'A') to node 'B', mapping the output channel from A into the input channel from B (texture version)

Parameters

outChannelA	Output to use from node A.
inChannelB	Input to connect the output from A.

◆ createPasses()

void Ogre::CompositorNode::createPasses ( )

inherited

Creates all passes based on our definition.

Remarks: Call this function after connecting all channels (at least our input) otherwise we may bind null pointer RTs to the passes (and then crash) @See connectTo and

See also: connectFinalRT

◆ destroyAllPasses()

void Ogre::CompositorNode::destroyAllPasses ( )

inherited

◆ finalTargetResized01()

void Ogre::CompositorShadowNode::finalTargetResized01 ( const TextureGpu * finalTarget )

overridevirtual

Reimplemented from Ogre::CompositorNode.

◆ finalTargetResized02()

virtual void Ogre::CompositorNode::finalTargetResized02 ( const TextureGpu * finalTarget )

virtualinherited

◆ getAffectedLightsBitSet()

const LightsBitSet& Ogre::CompositorShadowNode::getAffectedLightsBitSet ( ) const

inline

◆ getCastersBox()

const AxisAlignedBox& Ogre::CompositorShadowNode::getCastersBox ( ) const

inline

@See mCastersBox

◆ getContiguousShadowMapTex()

const TextureGpuVec& Ogre::CompositorShadowNode::getContiguousShadowMapTex ( ) const

inline

◆ getDefinedBuffer()

UavBufferPacked* Ogre::CompositorNode::getDefinedBuffer ( IdString bufferName ) const

inherited

Returns the buffer pointer of a buffer based on it's name.

Remarks: The buffer may come from a local buffer, an input buffer, or global (workspace).

Parameters

bufferName The name of the buffer. This name may only be valid at node scope. It can refer to an input buffer, a local buffer, or a global one. If a local or input buffer has the same name as a global one, the global one is ignored.

Returns: Regular: The buffer. Throws if buffer wasn't found. No throw version: Null if not found. The buffer otherwise

◆ getDefinedBufferNoThrow()

UavBufferPacked* Ogre::CompositorNode::getDefinedBufferNoThrow ( IdString bufferName ) const

inherited

◆ getDefinedTexture()

TextureGpu* Ogre::CompositorNode::getDefinedTexture ( IdString textureName ) const

inherited

Returns the texture pointer of a texture based on it's name & mrt index.

Remarks: The texture name must have been registered with CompositorNodeDef::addTextureSourceName

Parameters

textureName The name of the texture. This name may only be valid at node scope. It can refer to an input texture, a local texture, or a global one. If the global texture wasn't registered with addTextureSourceName, it will fail.

Returns: Null if not found (or global texture not registered). The texture otherwise

◆ getDefinition()

const CompositorShadowNodeDef* Ogre::CompositorShadowNode::getDefinition ( ) const

inline

◆ getEnabled()

bool Ogre::CompositorNode::getEnabled ( ) const

inlineinherited

Returns if this instance is enabled. @See setEnabled.

◆ getId()

IdType Ogre::IdObject::getId ( ) const

inlineinherited

Get the unique id of this object.

◆ getIndexToContiguousShadowMapTex()

uint32 Ogre::CompositorShadowNode::getIndexToContiguousShadowMapTex ( size_t shadowMapIdx ) const

◆ getInputChannel()

const CompositorChannelVec& Ogre::CompositorNode::getInputChannel ( ) const

inlineinherited

◆ getLightAssociatedWith()

const Light* Ogre::CompositorShadowNode::getLightAssociatedWith ( uint32 shadowMapIdx ) const

Note: May return null if there is no such shadowMapIdx, or if there is no light that could be linked with that shadow map index.

i.e. if isShadowMapIdxActive( shadowMapIdx ) is true, then we'll return a valid pointer.

◆ getLocalTextures()

const CompositorChannelVec& Ogre::CompositorNode::getLocalTextures ( ) const

inlineinherited

◆ getMinMaxDepthRange() [1/2]

void Ogre::CompositorShadowNode::getMinMaxDepthRange	(	const Frustum *	shadowMapCamera,
		Real &	outMin,
		Real &	outMax
	)		const

Outputs the min & max depth range for the given camera.

0 & 100000 if camera not found

Remarks: Performs linear search O(N), except the overload that provides a shadowMapIdx

◆ getMinMaxDepthRange() [2/2]

void Ogre::CompositorShadowNode::getMinMaxDepthRange	(	size_t	shadowMapIdx,
		Real &	outMin,
		Real &	outMax
	)		const

◆ getName()

IdString Ogre::CompositorNode::getName ( ) const

inlineinherited

◆ getNormalOffsetBias()

float Ogre::CompositorShadowNode::getNormalOffsetBias ( const size_t shadowMapIdx ) const

◆ getNumActiveShadowCastingLights()

size_t Ogre::CompositorShadowNode::getNumActiveShadowCastingLights ( ) const

inline

The return value may change in the future, which happens when the number of lights changes to or from a value lower than the supported shadow casting lights by the definition.

◆ getPassNumber()

size_t Ogre::CompositorNode::getPassNumber ( CompositorPass * pass ) const

inherited

◆ getPssmBlends()

const vector<Real>::type* Ogre::CompositorShadowNode::getPssmBlends ( size_t shadowMapIdx ) const

Returns a list of points with the blend band boundaries of the closest N-1 PSSM split in projection space for the given shadow map index.

Remarks

See also: getPssmSplits

Returns: An array with the blend points. The number of elements is N-1 where N is the number of splits for that shadow map. Returns null if shadowMapIdx is out of bounds, or is not a PSSM technique.

◆ getPssmFade()

const Real* Ogre::CompositorShadowNode::getPssmFade ( size_t shadowMapIdx ) const

Returns the fade point of the last PSSM split in projection space for the given shadow map index.

Remarks

See also: getPssmSplits

Returns: The fade point. Returns null if shadowMapIdx is out of bounds, or is not a PSSM technique.

◆ getPssmSplits()

const vector<Real>::type* Ogre::CompositorShadowNode::getPssmSplits ( size_t shadowMapIdx ) const

Returns a list of points with the limits of each PSSM split in projection space for the given shadow map index.

Remarks: If shadow map 0, 1 & 2 use light 0 with different splits, the return value should be the same for all of them.

Returns: An array with the split points. The number of elements is N+1 where N is the number of splits for that shadow map. Returns null if shadowMapIdx is out of bounds, or is not a PSSM technique.

◆ getRenderSystem()

RenderSystem* Ogre::CompositorNode::getRenderSystem ( ) const

inlineinherited

◆ getShadowCastingLights()

const LightClosestArray& Ogre::CompositorShadowNode::getShadowCastingLights ( ) const

inline

◆ getShadowMapLightTypeMask()

uint8 Ogre::CompositorShadowNode::getShadowMapLightTypeMask ( uint32 shadowMapIdx ) const

Do not call this if isShadowMapIdxActive == false or isShadowMapIdxInValidRange == false.

◆ getViewMatrix()

const Matrix4& Ogre::CompositorShadowNode::getViewMatrix ( size_t shadowMapIdx ) const

Returns the texture view matrix for the given shadow map index.

◆ getViewProjectionMatrix()

Matrix4 Ogre::CompositorShadowNode::getViewProjectionMatrix ( size_t shadowMapIdx ) const

Returns the texture view projection matrix for the given shadow map index.

◆ getWorkspace() [1/2]

CompositorWorkspace* Ogre::CompositorNode::getWorkspace ( )

inlineinherited

Returns our parent workspace.

◆ getWorkspace() [2/2]

const CompositorWorkspace* Ogre::CompositorNode::getWorkspace ( ) const

inlineinherited

Returns our parent workspace.

◆ isShadowMapIdxActive()

bool Ogre::CompositorShadowNode::isShadowMapIdxActive ( uint32 shadowMapIdx ) const

Returns true if the shadow map index is not active.

For example:

There are 3 shadow maps, but only 2 shadow casting lights
There are 3 directional maps for directional PSSM, but no directional light.

◆ isShadowMapIdxInValidRange()

bool Ogre::CompositorShadowNode::isShadowMapIdxInValidRange ( uint32 shadowMapIdx ) const

◆ notifyDestroyed() [1/2]

void Ogre::CompositorNode::notifyDestroyed ( const UavBufferPacked * buffer )

inherited

◆ notifyDestroyed() [2/2]

void Ogre::CompositorNode::notifyDestroyed ( TextureGpu * channel )

inherited

Call this function when caller has destroyed a RenderTarget in which the callee may have a reference to that pointer, so that we can clean it up.

Parameters

channel Channel containing the pointer about to be destroyed (must still be valid)

◆ notifyRecreated() [1/2]

void Ogre::CompositorNode::notifyRecreated	(	const UavBufferPacked *	oldBuffer,
		UavBufferPacked *	newBuffer
	)

inherited

◆ notifyRecreated() [2/2]

void Ogre::CompositorNode::notifyRecreated ( TextureGpu * channel )

inherited

Call this function when you're replacing the textures from oldChannel with the ones in newChannel.

Useful when recreating textures (i.e. resolution changed)

Parameters

oldChannel	The old textures that are going to be removed. Pointers in it must be still valid
newChannel	The new replacement textures

◆ operator delete() [1/3]

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete ( void * ptr )

inlineinherited

◆ operator delete() [2/3]

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete	(	void *	ptr,
		const char *	,
		int	,
		const char *
	)

inlineinherited

◆ operator delete() [3/3]

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete	(	void *	ptr,
		void *
	)

inlineinherited

◆ operator delete[]() [1/2]

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[] ( void * ptr )

inlineinherited

◆ operator delete[]() [2/2]

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[]	(	void *	ptr,
		const char *	,
		int	,
		const char *
	)

inlineinherited

◆ operator new() [1/3]

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new ( size_t sz )

inlineinherited

◆ operator new() [2/3]

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new	(	size_t	sz,
		const char *	file,
		int	line,
		const char *	func
	)

inlineinherited

operator new, with debug line info

◆ operator new() [3/3]

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new	(	size_t	sz,
		void *	ptr
	)

inlineinherited

placement operator new

◆ operator new[]() [1/2]

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[] ( size_t sz )

inlineinherited

◆ operator new[]() [2/2]

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[]	(	size_t	sz,
		const char *	file,
		int	line,
		const char *	func
	)

inlineinherited

array operator new, with debug line info

◆ operator()() [1/2]

bool Ogre::IdObject::operator()	(	const IdObject &	left,
		const IdObject &	right
	)

inlineinherited

◆ operator()() [2/2]

bool Ogre::IdObject::operator()	(	const IdObject *	left,
		const IdObject *	right
	)

inlineinherited

◆ postInitializePass()

void Ogre::CompositorShadowNode::postInitializePass ( CompositorPass * pass )

overridevirtual

We derive so we can override the camera with ours.

Reimplemented from Ogre::CompositorNode.

◆ resetAllNumPassesLeft()

void Ogre::CompositorNode::resetAllNumPassesLeft ( )

inherited

Resets the number of passes left for every pass (.

See also: CompositorPassDef::mNumInitialPasses) Useful when you have a few starting 'initialization' passes and you want to reset them.

◆ setEnabled()

void Ogre::CompositorNode::setEnabled ( bool bEnabled )

inherited

Enables or disables all instances of this node.

Remarks: Note that we just won't execute our passes. It's your job to change the channel connections accordingly if you have to. A disabled node won't complain when its connections are incomplete in a workspace.

: This function is useful frequently toggling a compositor effect without having to recreate any API resource (which often would involve stalls).

◆ setLightFixedToShadowMap()

void Ogre::CompositorShadowNode::setLightFixedToShadowMap	(	size_t	shadowMapIdx,
		Light *	light
	)

Marks a shadow map as statically updated, and ties the given light to always use that shadow map.

Remarks: By default Ogre recalculates the shadow maps every single frame (even if nothing has changed). However if you know that whatever a light is illuminating is not changing at all (or barely changing), with static shadow maps you are the one who tells Ogre when to update it (e.g. you may only need to update it three times during the whole level); hence the framerate goes up. Perceived quality may also go up because by default Ogre applies shadow mapping on the closest lights; so shadows flip on and off as you move the camera (because lights that had no shadows get closer while lights that were using shadows get farther away). While often this is desirable, there are cases where the artist may want a particular light to always have shadows (regardless of distance); with static shadow maps you can force that; hence the perceived quality may go up (but that's up to the talent of the artist and the scene in particular).

: Note that for point & spot lights, you have to consider if the light changed (e.g. moved, rotated) or if anything that is or could be lit by the light has moved Directional lights are harder because they depend on the camera placement as well.

: Use setStaticShadowMapDirty to tell Ogre to update the shadow map in the next render.

: Ogre may call light->setCastShadows( true ); on the light.

: IMPORTANT: Do not put static and dynamic shadow maps in the same UV atlas. It's asking for trouble and will probably not work. Keep the atlas separate.

VERY IMPORTANT: You must respect lights are set in the following order:

Directional
Point
Spot If you have shadow maps defined that support both point & spotlight, and you want to mix both static lights with dynamic ones; set fixed point lights in the first shadow map indices and spotlight in the last indices, to avoid Ogre automatically (e.g.) placing a point light after your static spot light.

Parameters

shadowMapIdx	Shadow map index to tie this light to. If this shadow map index is part of a PSSM split, all PSSM splits will be affected (thus you only need to call it once for any of the split that belong to the same set)
light	Light to tie to the given shadow map. Null pointer disables it.

◆ setShadowMapsToPass()

const LightList* Ogre::CompositorShadowNode::setShadowMapsToPass	(	Renderable *	rend,
		const Pass *	pass,
		AutoParamDataSource *	autoParamDataSource,
		size_t	startLight
	)

◆ setStaticShadowMapDirty()

void Ogre::CompositorShadowNode::setStaticShadowMapDirty	(	size_t	shadowMapIdx,
		bool	includeLinked = `true`
	)

Tags a static shadow map as dirty, causing Ogre to update it on the next time this Shadow node gets executed.

If drawing to a texture atlas, multiple shadow maps may be sharing the same texture, thus if you're doing a clear on the whole atlas, you will need to update all of the shadow maps, not just this one. Use includeLinked=true to mark as dirty all static shadow maps that share the same atlas. Set it to false if that's explicitly what you want, or if you're already going to call it for every shadow map (otherwise you will trigger a O(N^2) behavior).

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

OgreCompositorShadowNode.h

Public Types

Public Member Functions

Detailed Description

Member Typedef Documentation

◆ LightsBitSet

Constructor & Destructor Documentation

◆ CompositorShadowNode()

◆ ~CompositorShadowNode()

Member Function Documentation

◆ _getPasses()

◆ _notifyCleared()

◆ _shouldUpdateShadowMapIdx()

◆ _update() [1/2]

◆ _update() [2/2]

◆ areAllInputsConnected()

◆ connectBufferTo()

◆ connectExternalBuffer()

◆ connectExternalRT()

◆ connectTo()

◆ createPasses()

◆ destroyAllPasses()

◆ finalTargetResized01()

◆ finalTargetResized02()

◆ getAffectedLightsBitSet()

◆ getCastersBox()

◆ getContiguousShadowMapTex()

◆ getDefinedBuffer()

◆ getDefinedBufferNoThrow()

◆ getDefinedTexture()

◆ getDefinition()

◆ getEnabled()

◆ getId()

◆ getIndexToContiguousShadowMapTex()

◆ getInputChannel()

◆ getLightAssociatedWith()

◆ getLocalTextures()

◆ getMinMaxDepthRange() [1/2]

◆ getMinMaxDepthRange() [2/2]

◆ getName()

◆ getNormalOffsetBias()

◆ getNumActiveShadowCastingLights()

◆ getPassNumber()

◆ getPssmBlends()

◆ getPssmFade()

◆ getPssmSplits()

◆ getRenderSystem()

◆ getShadowCastingLights()

◆ getShadowMapLightTypeMask()

◆ getViewMatrix()

◆ getViewProjectionMatrix()

◆ getWorkspace() [1/2]

◆ getWorkspace() [2/2]

◆ isShadowMapIdxActive()

◆ isShadowMapIdxInValidRange()

◆ notifyDestroyed() [1/2]

◆ notifyDestroyed() [2/2]

◆ notifyRecreated() [1/2]

◆ notifyRecreated() [2/2]

◆ operator delete() [1/3]

◆ operator delete() [2/3]

◆ operator delete() [3/3]

◆ operator delete[]() [1/2]

◆ operator delete[]() [2/2]

◆ operator new() [1/3]

◆ operator new() [2/3]

◆ operator new() [3/3]

◆ operator new[]() [1/2]

◆ operator new[]() [2/2]

◆ operator()() [1/2]

◆ operator()() [2/2]

◆ postInitializePass()

◆ resetAllNumPassesLeft()

◆ setEnabled()

◆ setLightFixedToShadowMap()

◆ setShadowMapsToPass()

◆ setStaticShadowMapDirty()