A frustum represents a pyramid, capped at the near and far end which is used to represent either a visible area or a projection area. More...

#include <OgreFrustum.h>

Inheritance diagram for Ogre::Frustum:

Public Types
typedef SharedPtr< RenderSystemData >	RenderSystemDataPtr

typedef std::vector< ShadowRenderable * >	ShadowRenderableList

typedef VectorIterator< ShadowRenderableList >	ShadowRenderableListIterator

Public Member Functions
	Frustum (const String &name=BLANKSTRING)
	Named constructor. More...

virtual	~Frustum ()

MovableObjectFactory *	_getCreator (void) const
	Get the creator of this object, if any (internal use only) More...

LightList *	_getLightList ()
	Returns a pointer to the current list of lights for this object. More...

SceneManager *	_getManager (void) const
	Get the manager of this object, if any (internal use only) More...

virtual const Affine3 &	_getParentNodeFullTransform (void) const
	Return the full transformation of the parent sceneNode or the attachingPoint node. More...

virtual void	_notifyAttached (Node *parent, bool isTagPoint=false)
	Internal method called to notify the object that it has been attached to a node. More...

virtual void	_notifyCreator (MovableObjectFactory *fact)
	Notify the object of it's creator (internal use only) More...

void	_notifyCurrentCamera (Camera *cam)
	Overridden from MovableObject. More...

virtual void	_notifyManager (SceneManager *man)
	Notify the object of it's manager (internal use only) More...

virtual void	_notifyMoved (void)
	Internal method called to notify the object that it has been moved. More...

virtual void	_releaseManualHardwareResources ()
	Notifies the movable object that hardware resources were lost. More...

virtual void	_restoreManualHardwareResources ()
	Notifies the movable object that hardware resources should be restored. More...

virtual void	_updateCustomGpuParameter (const GpuProgramParameters::AutoConstantEntry &constantEntry, GpuProgramParameters *params) const
	Update a custom GpuProgramParameters constant which is derived from information only this Renderable knows. More...

void	_updateRenderQueue (RenderQueue *queue)
	Overridden from MovableObject. More...

void	addQueryFlags (uint32 flags)
	As setQueryFlags, except the flags passed as parameters are appended to the existing flags on this object. More...

void	addVisibilityFlags (uint32 flags)
	As setVisibilityFlags, except the flags passed as parameters are appended to the existing flags on this object. More...

void	calcViewMatrixRelative (const Vector3 &relPos, Matrix4 &matToUpdate) const
	Calculate a view matrix for this frustum, relative to a potentially dynamic point. More...

virtual AnimableValuePtr	createAnimableValue (const String &valueName)
	Create a reference-counted AnimableValuePtr for the named value. More...

void	detachFromParent (void)
	Detaches an object from a parent SceneNode or TagPoint, if attached. More...

void	disableCustomNearClipPlane (void)
	Disables any custom near clip plane. More...

void	disableReflection (void)
	Disables reflection modification previously turned on with enableReflection. More...

void	enableCustomNearClipPlane (const MovablePlane *plane)
	Links the frustum to a custom near clip plane, which can be used to clip geometry in a custom manner without using user clip planes. More...

void	enableCustomNearClipPlane (const Plane &plane)
	Links the frustum to a custom near clip plane, which can be used to clip geometry in a custom manner without using user clip planes. More...

void	enableReflection (const Plane &p)
	Modifies this frustum so it always renders from the reflection of itself through the plane specified. More...

void	enableReflection (const MovablePlane *p)
	Modifies this frustum so it always renders from the reflection of itself through the plane specified. More...

const StringVector &	getAnimableValueNames (void) const
	Gets a list of animable value names for this object. More...

Real	getAspectRatio (void) const
	Retrieves the current aspect ratio. More...

const AxisAlignedBox &	getBoundingBox (void) const
	Overridden from MovableObject. More...

Real	getBoundingRadius (void) const
	Overridden from MovableObject. More...

bool	getCastShadows (void) const
	Returns whether shadow casting is enabled for this object. More...

virtual bool	getCastsShadows (void) const
	Method which reports whether this renderable would normally cast a shadow. More...

const Vector4 &	getCustomParameter (size_t index) const
	Gets the custom value associated with this Renderable at the given index. More...

const AxisAlignedBox &	getDarkCapBounds (const Light &light, Real dirLightExtrusionDist) const
	Overridden member from ShadowCaster. More...

EdgeData *	getEdgeList (void)
	Returns details of the edges which might be used to determine a silhouette. More...

Real	getFarClipDistance (void) const
	Retrieves the distance from the frustum to the far clipping plane. More...

Real	getFocalLength () const
	Returns focal length of frustum. More...

const Radian &	getFOVy (void) const
	Retrieves the frustums Y-dimension Field Of View (FOV). More...

RealRect	getFrustumExtents () const
	Get the extents of the frustum in view space. More...

void	getFrustumExtents (Real &outleft, Real &outright, Real &outtop, Real &outbottom) const

const Vector2 &	getFrustumOffset () const
	Retrieves the frustum offsets. More...

virtual const Plane &	getFrustumPlane (unsigned short plane) const
	Retrieves a specified plane of the frustum (world space). More...

virtual const Plane *	getFrustumPlanes (void) const
	Retrieves the clipping planes of the frustum (world space). More...

const AxisAlignedBox &	getLightCapBounds (void) const
	Overridden member from ShadowCaster. More...

uint32	getLightMask () const
	Get a bitwise mask which will filter the lights affecting this object. More...

const LightList &	getLights (void) const
	Overridden from Renderable. More...

Listener *	getListener (void) const
	Gets the current listener for this object. More...

const MaterialPtr &	getMaterial (void) const
	Overridden from Renderable. More...

const String &	getMovableType (void) const
	Overridden from MovableObject. More...

const String &	getName (void) const
	Returns the name of this object. More...

Real	getNearClipDistance (void) const
	Sets the position of the near clipping plane. More...

virtual unsigned short	getNumWorldTransforms (void) const
	Returns the number of world transform matrices this renderable requires. More...

virtual const Quaternion &	getOrientationForViewUpdate (void) const
	Get the derived orientation of this frustum. More...

OrientationMode	getOrientationMode () const
	Get the orientation mode of the frustum. More...

Real	getOrthoWindowHeight () const
	Gets the orthographic window height, for use with orthographic rendering only. More...

Real	getOrthoWindowWidth () const
	Gets the orthographic window width, for use with orthographic rendering only. More...

Node *	getParentNode (void) const
	Returns the node to which this object is attached. More...

SceneNode *	getParentSceneNode (void) const
	Returns the scene node to which this object is attached. More...

PlaneBoundedVolume	getPlaneBoundedVolume ()
	Gets a world-space list of planes enclosing the frustum. More...

Real	getPointExtrusionDistance (const Light *l) const
	Get the distance to extrude for a point/spot light. More...

bool	getPolygonModeOverrideable (void) const
	Gets whether this renderable's chosen detail level can be overridden (downgraded) by the camera setting. More...

virtual const Vector3 &	getPositionForViewUpdate (void) const
	Get the derived position of this frustum. More...

const Matrix4 &	getProjectionMatrix (void) const
	Gets the normal projection matrix for this frustum, ie the projection matrix which conforms to standard right-handed rules and uses depth range [-1,+1]. More...

const Matrix4 &	getProjectionMatrixRS (void) const
	Gets the projection matrix for this frustum adjusted for the current rendersystem specifics (may be right or left-handed, depth range may vary). More...

const Matrix4 &	getProjectionMatrixWithRSDepth (void) const
	Gets the depth-adjusted projection matrix for the current rendersystem, but one which still conforms to right-hand rules. More...

ProjectionType	getProjectionType (void) const
	Retrieves info on the type of projection used (orthographic or perspective). More...

uint32	getQueryFlags (void) const
	Returns the query flags relevant for this object. More...

bool	getReceivesShadows ()
	Returns whether the Material of any Renderable that this MovableObject will add to the render queue will receive shadows. More...

const Affine3 &	getReflectionMatrix (void) const
	Returns the reflection matrix of the frustum if appropriate. More...

const Plane &	getReflectionPlane (void) const
	Returns the reflection plane of the frustum if appropriate. More...

Real	getRenderingDistance (void) const
	Gets the distance at which batches are no longer rendered. More...

Real	getRenderingMinPixelSize () const
	Returns the minimum pixel size an object needs to be in both screen axes in order to be rendered. More...

void	getRenderOperation (RenderOperation &op)
	Overridden from Renderable. More...

uint8	getRenderQueueGroup (void) const
	Gets the queue group for this entity. More...

const RenderSystemDataPtr &	getRenderSystemData () const
	Gets RenderSystem private data. More...

ShadowRenderableListIterator	getShadowVolumeRenderableIterator (ShadowTechnique shadowTechnique, const Light light, HardwareIndexBufferSharedPtr indexBuffer, size_t *indexBufferUsedSize, bool extrudeVertices, Real extrusionDist, unsigned long flags=0)
	Define a default implementation of method from ShadowCaster which implements no shadows. More...

Real	getSquaredViewDepth (const Camera *cam) const
	Overridden from Renderable. More...

virtual Technique *	getTechnique (void) const
	Retrieves a pointer to the Material Technique this renderable object uses. More...

uint32	getTypeFlags (void) const
	Overridden from MovableObject::getTypeFlags. More...

bool	getUseIdentityProjection (void) const
	Returns whether or not to use an 'identity' projection. More...

bool	getUseIdentityView (void) const
	Returns whether or not to use an 'identity' view. More...

const Any &	getUserAny (void) const

const Any &	getUserAny (void) const

UserObjectBindings &	getUserObjectBindings ()
	Return an instance of user objects binding associated with this class. More...

UserObjectBindings &	getUserObjectBindings ()
	Return an instance of user objects binding associated with this class. More...

const UserObjectBindings &	getUserObjectBindings () const
	Return an instance of user objects binding associated with this class. More...

const UserObjectBindings &	getUserObjectBindings () const
	Return an instance of user objects binding associated with this class. More...

const Affine3 &	getViewMatrix (void) const
	Gets the view matrix for this frustum. More...

uint32	getVisibilityFlags (void) const
	Returns the visibility flags relevant for this object. More...

bool	getVisible (void) const
	Gets this object whether to be visible or not, if it has a renderable component. More...

virtual const AxisAlignedBox &	getWorldBoundingBox (bool derive=false) const
	Retrieves the axis-aligned bounding box for this object in world coordinates. More...

virtual const Sphere &	getWorldBoundingSphere (bool derive=false) const
	Retrieves the worldspace bounding sphere for this object. More...

virtual const Vector3 *	getWorldSpaceCorners (void) const
	Gets the world space corners of the frustum. More...

void	getWorldTransforms (Matrix4 *xform) const
	Overridden from Renderable. More...

bool	hasCustomParameter (size_t index) const
	Checks whether a custom value is associated with this Renderable at the given index. More...

bool	hasEdgeList (void)
	Returns whether the object has a valid edge list. More...

bool	isAttached (void) const
	Returns true if this object is attached to a SceneNode or TagPoint. More...

bool	isCustomNearClipPlaneEnabled (void) const
	Is a custom near clip plane in use? More...

bool	isCustomProjectionMatrixEnabled (void) const
	Returns whether a custom projection matrix is in use. More...

bool	isCustomViewMatrixEnabled (void) const
	Returns whether a custom view matrix is in use. More...

bool	isDebugDisplayEnabled (void) const
	Gets whether debug display of this object is enabled. More...

virtual bool	isInScene (void) const
	Returns true if this object is attached to a SceneNode or TagPoint, and this SceneNode / TagPoint is currently in an active part of the scene graph. More...

bool	isParentTagPoint () const
	Gets whether the parent node is a TagPoint (or a SceneNode) More...

bool	isReflected (void) const
	Returns whether this frustum is being reflected. More...

virtual bool	isVisible (void) const
	Returns whether or not this object is supposed to be visible or not. More...

virtual bool	isVisible (const AxisAlignedBox &bound, FrustumPlane *culledBy=0) const
	Tests whether the given container is visible in the Frustum. More...

virtual bool	isVisible (const Sphere &bound, FrustumPlane *culledBy=0) const
	Tests whether the given container is visible in the Frustum. More...

virtual bool	isVisible (const Vector3 &vert, FrustumPlane *culledBy=0) const
	Tests whether the given vertex is visible in the Frustum. More...

virtual void	postRender (SceneManager sm, RenderSystem rsys)
	Called immediately after the Renderable has been rendered. More...

virtual bool	preRender (SceneManager sm, RenderSystem rsys)
	Called just prior to the Renderable being rendered. More...

virtual bool	projectSphere (const Sphere &sphere, Real left, Real top, Real right, Real bottom) const
	Project a sphere onto the near plane and get the bounding rectangle. More...

const LightList &	queryLights (void) const
	Gets a list of lights, ordered relative to how close they are to this movable object. More...

void	removeCustomParameter (size_t index)
	Removes a custom value which is associated with this Renderable at the given index. More...

void	removeQueryFlags (uint32 flags)
	As setQueryFlags, except the flags passed as parameters are removed from the existing flags on this object. More...

void	removeVisibilityFlags (uint32 flags)
	As setVisibilityFlags, except the flags passed as parameters are removed from the existing flags on this object. More...

void	resetFrustumExtents ()
	Reset the frustum extents to be automatically derived from other params. More...

void	setAspectRatio (Real ratio)
	Sets the aspect ratio for the frustum viewport. More...

void	setCastShadows (bool enabled)
	Sets whether or not this object will cast shadows. More...

void	setCustomParameter (size_t index, const Vector4 &value)
	Sets a custom parameter for this Renderable, which may be used to drive calculations for this specific Renderable, like GPU program parameters. More...

void	setCustomProjectionMatrix (bool enable, const Matrix4 &projectionMatrix=Matrix4::IDENTITY)
	Set whether to use a custom projection matrix on this frustum. More...

void	setCustomViewMatrix (bool enable, const Affine3 &viewMatrix=Affine3::IDENTITY)
	Set whether to use a custom view matrix on this frustum. More...

void	setDebugDisplayEnabled (bool enabled)
	Sets whether or not the debug display of this object is enabled. More...

void	setFarClipDistance (Real farDist)
	Sets the distance to the far clipping plane. More...

void	setFocalLength (Real focalLength=1.0)
	Sets frustum focal length (used in stereo rendering). More...

void	setFOVy (const Radian &fovy)
	Sets the Y-dimension Field Of View (FOV) of the frustum. More...

void	setFrustumExtents (Real left, Real right, Real top, Real bottom)
	Manually set the extents of the frustum. More...

void	setFrustumOffset (const Vector2 &offset)
	Sets frustum offsets, used in stereo rendering. More...

void	setFrustumOffset (Real horizontal=0.0, Real vertical=0.0)
	Sets frustum offsets, used in stereo rendering. More...

void	setLightMask (uint32 lightMask)
	Set a bitwise mask which will filter the lights affecting this object. More...

void	setListener (Listener *listener)
	Sets a listener for this object. More...

void	setMaterial (const MaterialPtr &mat)
	material to use for debug display More...

void	setNearClipDistance (Real nearDist)
	Sets the position of the near clipping plane. More...

void	setOrientationMode (OrientationMode orientationMode)
	Set the orientation mode of the frustum. More...

void	setOrthoWindow (Real w, Real h)
	Sets the orthographic window settings, for use with orthographic rendering only. More...

void	setOrthoWindowHeight (Real h)
	Sets the orthographic window height, for use with orthographic rendering only. More...

void	setOrthoWindowWidth (Real w)
	Sets the orthographic window width, for use with orthographic rendering only. More...

void	setPolygonModeOverrideable (bool override)
	Sets whether this renderable's chosen detail level can be overridden (downgraded) by the camera setting. More...

virtual void	setProjectionType (ProjectionType pt)
	Sets the type of projection to use (orthographic or perspective). More...

void	setQueryFlags (uint32 flags)
	Sets the query flags for this object. More...

void	setRenderingDistance (Real dist)
	Sets the distance at which the object is no longer rendered. More...

void	setRenderingMinPixelSize (Real pixelSize)
	Sets the minimum pixel size an object needs to be in both screen axes in order to be rendered. More...

virtual void	setRenderQueueGroup (uint8 queueID)
	Sets the render queue group this entity will be rendered through. More...

virtual void	setRenderQueueGroupAndPriority (uint8 queueID, ushort priority)
	Sets the render queue group and group priority this entity will be rendered through. More...

void	setRenderSystemData (RenderSystemDataPtr val) const
	Sets RenderSystem private data. More...

void	setUseIdentityProjection (bool useIdentityProjection)
	Sets whether or not to use an 'identity' projection. More...

void	setUseIdentityView (bool useIdentityView)
	Sets whether or not to use an 'identity' view. More...

void	setUserAny (const Any &anything)

void	setUserAny (const Any &anything)

void	setVisibilityFlags (uint32 flags)
	Sets the visibility flags for this object. More...

void	setVisible (bool visible)
	Tells this object whether to be visible or not, if it has a renderable component. More...

void	visitRenderables (Renderable::Visitor *visitor, bool debugRenderables=false)
	Method to allow a caller to abstractly iterate over the Renderable instances that this MovableObject will add to the render queue when asked, if any. More...

Static Public Member Functions
static void	clearShadowRenderableList (ShadowRenderableList &shadowRenderables)
	Common implementation of releasing shadow renderables. More...

static void	extrudeVertices (const HardwareVertexBufferSharedPtr &vertexBuffer, size_t originalVertexCount, const Vector4 &lightPos, Real extrudeDist)
	Utility method for extruding vertices based on a light. More...

static uint32	getDefaultQueryFlags ()
	Get the default query flags for all future MovableObject instances. More...

static uint32	getDefaultVisibilityFlags ()
	Get the default visibility flags for all future MovableObject instances. More...

static void	setDefaultQueryFlags (uint32 flags)
	Set the default query flags for all future MovableObject instances. More...

static void	setDefaultVisibilityFlags (uint32 flags)
	Set the default visibility flags for all future MovableObject instances. More...

Static Public Attributes
static const Real	INFINITE_FAR_PLANE_ADJUST
	Small constant used to reduce far plane projection to avoid inaccuracies. More...

Detailed Description

A frustum represents a pyramid, capped at the near and far end which is used to represent either a visible area or a projection area.

Can be used for a number of applications.

Member Typedef Documentation

◆ ShadowRenderableList

typedef std::vector<ShadowRenderable*> Ogre::ShadowCaster::ShadowRenderableList

inherited

◆ ShadowRenderableListIterator

typedef VectorIterator<ShadowRenderableList> Ogre::ShadowCaster::ShadowRenderableListIterator

inherited

◆ RenderSystemDataPtr

typedef SharedPtr<RenderSystemData> Ogre::Renderable::RenderSystemDataPtr

inherited

Constructor & Destructor Documentation

◆ Frustum()

Ogre::Frustum::Frustum ( const String & name = BLANKSTRING )

Named constructor.

◆ ~Frustum()

virtual Ogre::Frustum::~Frustum ( )

virtual

Member Function Documentation

◆ setFOVy()

void Ogre::Frustum::setFOVy ( const Radian & fovy )

Sets the Y-dimension Field Of View (FOV) of the frustum.

Remarks: Field Of View (FOV) is the angle made between the frustum's position, and the edges of the 'screen' onto which the scene is projected. High values (90+ degrees) result in a wide-angle, fish-eye kind of view, low values (30- degrees) in a stretched, telescopic kind of view. Typical values are between 45 and 60 degrees.

: This value represents the VERTICAL field-of-view. The horizontal field of view is calculated from this depending on the dimensions of the viewport (they will only be the same if the viewport is square).

Note: Setting the FOV overrides the value supplied for frustum::setNearClipPlane.

◆ getFOVy()

const Radian& Ogre::Frustum::getFOVy ( void ) const

Retrieves the frustums Y-dimension Field Of View (FOV).

◆ setNearClipDistance()

void Ogre::Frustum::setNearClipDistance ( Real nearDist )

Sets the position of the near clipping plane.

Remarks: The position of the near clipping plane is the distance from the frustums position to the screen on which the world is projected. The near plane distance, combined with the field-of-view and the aspect ratio, determines the size of the viewport through which the world is viewed (in world co-ordinates). Note that this world viewport is different to a screen viewport, which has it's dimensions expressed in pixels. The frustums viewport should have the same aspect ratio as the screen viewport it renders into to avoid distortion.

Parameters

nearDist The distance to the near clipping plane from the frustum in world coordinates.

◆ getNearClipDistance()

Real Ogre::Frustum::getNearClipDistance ( void ) const

Sets the position of the near clipping plane.

◆ setFarClipDistance()

void Ogre::Frustum::setFarClipDistance ( Real farDist )

Sets the distance to the far clipping plane.

Remarks: The view frustum is a pyramid created from the frustum position and the edges of the viewport. This method sets the distance for the far end of that pyramid. Different applications need different values: e.g. a flight sim needs a much further far clipping plane than a first-person shooter. An important point here is that the larger the ratio between near and far clipping planes, the lower the accuracy of the Z-buffer used to depth-cue pixels. This is because the Z-range is limited to the size of the Z buffer (16 or 32-bit) and the max values must be spread over the gap between near and far clip planes. As it happens, you can affect the accuracy far more by altering the near distance rather than the far distance, but keep this in mind.

Parameters

farDist The distance to the far clipping plane from the frustum in world coordinates.If you specify 0, this means an infinite view distance which is useful especially when projecting shadows; but be careful not to use a near distance too close.

◆ getFarClipDistance()

Real Ogre::Frustum::getFarClipDistance ( void ) const

Retrieves the distance from the frustum to the far clipping plane.

◆ setAspectRatio()

void Ogre::Frustum::setAspectRatio ( Real ratio )

Sets the aspect ratio for the frustum viewport.

Remarks: The ratio between the x and y dimensions of the rectangular area visible through the frustum is known as aspect ratio: aspect = width / height .

: The default for most fullscreen windows is 1.3333 - this is also assumed by Ogre unless you use this method to state otherwise.

◆ getAspectRatio()

Real Ogre::Frustum::getAspectRatio ( void ) const

Retrieves the current aspect ratio.

◆ setFrustumOffset() [1/2]

void Ogre::Frustum::setFrustumOffset ( const Vector2 & offset )

Sets frustum offsets, used in stereo rendering.

Remarks: You can set both horizontal and vertical plane offsets of "eye"; in stereo rendering frustum is moved in horizontal plane. To be able to render from two "eyes" you'll need two cameras rendering on two RenderTargets.

: The frustum offsets is in world coordinates, and default to (0, 0) - no offsets.

Parameters

offset The horizontal and vertical plane offsets.

◆ setFrustumOffset() [2/2]

void Ogre::Frustum::setFrustumOffset	(	Real	horizontal = `0.0`,
		Real	vertical = `0.0`
	)

Sets frustum offsets, used in stereo rendering.

Remarks: You can set both horizontal and vertical plane offsets of "eye"; in stereo rendering frustum is moved in horizontal plane. To be able to render from two "eyes" you'll need two cameras rendering on two RenderTargets.

: The frustum offsets is in world coordinates, and default to (0, 0) - no offsets.

Parameters

horizontal	The horizontal plane offset.
vertical	The vertical plane offset.

◆ getFrustumOffset()

const Vector2& Ogre::Frustum::getFrustumOffset ( ) const

Retrieves the frustum offsets.

◆ setFocalLength()

void Ogre::Frustum::setFocalLength ( Real focalLength = 1.0 )

Sets frustum focal length (used in stereo rendering).

Parameters

focalLength The distance to the focal plane from the frustum in world coordinates.

◆ getFocalLength()

Real Ogre::Frustum::getFocalLength ( ) const

Returns focal length of frustum.

◆ setFrustumExtents()

void Ogre::Frustum::setFrustumExtents	(	Real	left,
		Real	right,
		Real	top,
		Real	bottom
	)

Manually set the extents of the frustum.

Parameters

left,right,top,bottom The position where the side clip planes intersect the near clip plane, in eye space

◆ resetFrustumExtents()

void Ogre::Frustum::resetFrustumExtents ( )

Reset the frustum extents to be automatically derived from other params.

◆ getFrustumExtents() [1/2]

RealRect Ogre::Frustum::getFrustumExtents ( ) const

Get the extents of the frustum in view space.

◆ getFrustumExtents() [2/2]

void Ogre::Frustum::getFrustumExtents	(	Real &	outleft,
		Real &	outright,
		Real &	outtop,
		Real &	outbottom
	)		const

Deprecated:

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

◆ getProjectionMatrixRS()

const Matrix4& Ogre::Frustum::getProjectionMatrixRS ( void ) const

Gets the projection matrix for this frustum adjusted for the current rendersystem specifics (may be right or left-handed, depth range may vary).

Remarks: This method retrieves the rendering-API dependent version of the projection matrix. If you want a 'typical' projection matrix then use getProjectionMatrix.

◆ getProjectionMatrixWithRSDepth()

const Matrix4& Ogre::Frustum::getProjectionMatrixWithRSDepth ( void ) const

Gets the depth-adjusted projection matrix for the current rendersystem, but one which still conforms to right-hand rules.

Remarks: This differs from the rendering-API dependent getProjectionMatrix in that it always returns a right-handed projection matrix result no matter what rendering API is being used - this is required for vertex and fragment programs for example. However, the resulting depth range may still vary between render systems since D3D uses [0,1] and GL uses [-1,1], and the range must be kept the same between programmable and fixed-function pipelines.

◆ getProjectionMatrix()

const Matrix4& Ogre::Frustum::getProjectionMatrix ( void ) const

Gets the normal projection matrix for this frustum, ie the projection matrix which conforms to standard right-handed rules and uses depth range [-1,+1].

Remarks: This differs from the rendering-API dependent getProjectionMatrixRS in that it always returns a right-handed projection matrix with depth range [-1,+1], result no matter what rendering API is being used - this is required for some uniform algebra for example.

◆ getViewMatrix()

const Affine3& Ogre::Frustum::getViewMatrix ( void ) const

Gets the view matrix for this frustum.

Mainly for use by OGRE internally.

◆ calcViewMatrixRelative()

void Ogre::Frustum::calcViewMatrixRelative	(	const Vector3 &	relPos,
		Matrix4 &	matToUpdate
	)		const

Calculate a view matrix for this frustum, relative to a potentially dynamic point.

Mainly for use by OGRE internally when using camera-relative rendering for frustums that are not the centre (e.g. texture projection)

◆ setCustomViewMatrix()

void Ogre::Frustum::setCustomViewMatrix	(	bool	enable,
		const Affine3 &	viewMatrix = `Affine3::IDENTITY`
	)

Set whether to use a custom view matrix on this frustum.

Remarks: This is an advanced method which allows you to manually set the view matrix on this frustum, rather than having it calculate itself based on it's position and orientation.

Note: After enabling a custom view matrix, the frustum will no longer update on its own based on position / orientation changes. You are completely responsible for keeping the view matrix up to date. The custom matrix will be returned from getViewMatrix.

Parameters

enable	If `true`, the custom view matrix passed as the second parameter will be used in preference to an auto calculated one. If false, the frustum will revert to auto calculating the view matrix.
viewMatrix	The custom view matrix to use

See also: Frustum::setCustomProjectionMatrix

◆ isCustomViewMatrixEnabled()

bool Ogre::Frustum::isCustomViewMatrixEnabled ( void ) const

inline

Returns whether a custom view matrix is in use.

References Ogre::Matrix4::IDENTITY.

◆ setCustomProjectionMatrix()

void Ogre::Frustum::setCustomProjectionMatrix	(	bool	enable,
		const Matrix4 &	projectionMatrix = `Matrix4::IDENTITY`
	)

Set whether to use a custom projection matrix on this frustum.

Remarks: This is an advanced method which allows you to manually set the projection matrix on this frustum, rather than having it calculate itself based on it's position and orientation.

Note: After enabling a custom projection matrix, the frustum will no longer update on its own based on field of view and near / far distance changes. You are completely responsible for keeping the projection matrix up to date if those values change. The custom matrix will be returned from getProjectionMatrix and derivative functions.

Parameters

enable	If `true`, the custom projection matrix passed as the second parameter will be used in preference to an auto calculated one. If `false`, the frustum will revert to auto calculating the projection matrix.
projectionMatrix	The custom view matrix to use.

See also: Frustum::setCustomViewMatrix

◆ isCustomProjectionMatrixEnabled()

bool Ogre::Frustum::isCustomProjectionMatrixEnabled ( void ) const

inline

Returns whether a custom projection matrix is in use.

References Ogre::MovableObject::isVisible().

◆ getFrustumPlanes()

virtual const Plane* Ogre::Frustum::getFrustumPlanes ( void ) const

virtual

Retrieves the clipping planes of the frustum (world space).

Remarks: The clipping planes are ordered as declared in enumerate constants FrustumPlane.

◆ getFrustumPlane()

virtual const Plane& Ogre::Frustum::getFrustumPlane ( unsigned short plane ) const

virtual

Retrieves a specified plane of the frustum (world space).

Remarks: Gets a reference to one of the planes which make up the frustum frustum, e.g. for clipping purposes.

Reimplemented in Ogre::Camera.

◆ isVisible() [1/4]

virtual bool Ogre::Frustum::isVisible	(	const AxisAlignedBox &	bound,
		FrustumPlane *	culledBy = `0`
	)		const

virtual

Tests whether the given container is visible in the Frustum.

Parameters

bound	Bounding box to be checked (world space).
culledBy	Optional pointer to an int which will be filled by the plane number which culled the box if the result was `false`;

Returns: If the box was visible, true is returned.

: Otherwise, false is returned.

Reimplemented in Ogre::Camera, and Ogre::PCZCamera.

◆ isVisible() [2/4]

virtual bool Ogre::Frustum::isVisible	(	const Sphere &	bound,
		FrustumPlane *	culledBy = `0`
	)		const

virtual

Tests whether the given container is visible in the Frustum.

Parameters

bound	Bounding sphere to be checked (world space).
culledBy	Optional pointer to an int which will be filled by the plane number which culled the box if the result was `false`;

Returns: If the sphere was visible, true is returned.

: Otherwise, false is returned.

Reimplemented in Ogre::Camera.

◆ isVisible() [3/4]

virtual bool Ogre::Frustum::isVisible	(	const Vector3 &	vert,
		FrustumPlane *	culledBy = `0`
	)		const

virtual

Tests whether the given vertex is visible in the Frustum.

Parameters

vert	Vertex to be checked (world space).
culledBy	Optional pointer to an int which will be filled by the plane number which culled the box if the result was `false`;

Returns: If the sphere was visible, true is returned.

: Otherwise, false is returned.

Reimplemented in Ogre::Camera.

◆ getTypeFlags()

uint32 Ogre::Frustum::getTypeFlags ( void ) const

virtual

Overridden from MovableObject::getTypeFlags.

Reimplemented from Ogre::MovableObject.

◆ getBoundingBox()

const AxisAlignedBox& Ogre::Frustum::getBoundingBox ( void ) const

virtual

Overridden from MovableObject.

Implements Ogre::MovableObject.

Reimplemented in Ogre::PCZCamera.

◆ getBoundingRadius()

Real Ogre::Frustum::getBoundingRadius ( void ) const

virtual

Overridden from MovableObject.

Implements Ogre::MovableObject.

◆ _updateRenderQueue()

void Ogre::Frustum::_updateRenderQueue ( RenderQueue * queue )

virtual

Overridden from MovableObject.

Implements Ogre::MovableObject.

◆ getMovableType()

const String& Ogre::Frustum::getMovableType ( void ) const

virtual

Overridden from MovableObject.

Implements Ogre::MovableObject.

◆ _notifyCurrentCamera()

void Ogre::Frustum::_notifyCurrentCamera ( Camera * cam )

virtual

Overridden from MovableObject.

virtual const Vector3* Ogre::Frustum::getWorldSpaceCorners ( void ) const

virtual

Gets the world space corners of the frustum.

Remarks: The corners are ordered as follows: top-right near, top-left near, bottom-left near, bottom-right near, top-right far, top-left far, bottom-left far, bottom-right far.

Reimplemented in Ogre::Camera.

◆ setProjectionType()

virtual void Ogre::Frustum::setProjectionType ( ProjectionType pt )

virtual

Sets the type of projection to use (orthographic or perspective).

Default is perspective.

Reimplemented in Ogre::PCZCamera.

◆ getProjectionType()

ProjectionType Ogre::Frustum::getProjectionType ( void ) const

Retrieves info on the type of projection used (orthographic or perspective).

◆ setOrthoWindow()

void Ogre::Frustum::setOrthoWindow	(	Real	w,
		Real	h
	)

Sets the orthographic window settings, for use with orthographic rendering only.

Note: Calling this method will recalculate the aspect ratio, use setOrthoWindowHeight or setOrthoWindowWidth alone if you wish to preserve the aspect ratio but just fit one or other dimension to a particular size.

Parameters

w	The width of the view window in world units.
h	The height of the view window in world units.

◆ setOrthoWindowHeight()

void Ogre::Frustum::setOrthoWindowHeight ( Real h )

Sets the orthographic window height, for use with orthographic rendering only.

Note: The width of the window will be calculated from the aspect ratio.

Parameters

h	The height of the view window in world units.

◆ setOrthoWindowWidth()

void Ogre::Frustum::setOrthoWindowWidth ( Real w )

Sets the orthographic window width, for use with orthographic rendering only.

Note: The height of the window will be calculated from the aspect ratio.

Parameters

w	The width of the view window in world units.

◆ getOrthoWindowHeight()

Real Ogre::Frustum::getOrthoWindowHeight ( ) const

Gets the orthographic window height, for use with orthographic rendering only.

◆ getOrthoWindowWidth()

Real Ogre::Frustum::getOrthoWindowWidth ( ) const

Gets the orthographic window width, for use with orthographic rendering only.

Note: This is calculated from the orthographic height and the aspect ratio

◆ enableReflection() [1/2]

void Ogre::Frustum::enableReflection ( const Plane & p )

Modifies this frustum so it always renders from the reflection of itself through the plane specified.

Remarks: This is obviously useful for performing planar reflections.

◆ enableReflection() [2/2]

void Ogre::Frustum::enableReflection ( const MovablePlane * p )

Modifies this frustum so it always renders from the reflection of itself through the plane specified.

Note that this version of the method links to a plane so that changes to it are picked up automatically. It is important that this plane continues to exist whilst this object does; do not destroy the plane before the frustum.

Remarks: This is obviously useful for performing planar reflections.

◆ disableReflection()

void Ogre::Frustum::disableReflection ( void )

Disables reflection modification previously turned on with enableReflection.

◆ isReflected()

bool Ogre::Frustum::isReflected ( void ) const

inline

Returns whether this frustum is being reflected.

◆ getReflectionMatrix()

const Affine3& Ogre::Frustum::getReflectionMatrix ( void ) const

inline

Returns the reflection matrix of the frustum if appropriate.

◆ getReflectionPlane()

const Plane& Ogre::Frustum::getReflectionPlane ( void ) const

inline

Returns the reflection plane of the frustum if appropriate.

◆ projectSphere()

virtual bool Ogre::Frustum::projectSphere	(	const Sphere &	sphere,
		Real *	left,
		Real *	top,
		Real *	right,
		Real *	bottom
	)		const

virtual

Project a sphere onto the near plane and get the bounding rectangle.

Parameters

sphere	The world-space sphere to project.
left	Pointers to destination values, these will be completed with the normalised device coordinates (in the range {-1,1}).
top	Pointers to destination values, these will be completed with the normalised device coordinates (in the range {-1,1}).
right	Pointers to destination values, these will be completed with the normalised device coordinates (in the range {-1,1}).
bottom	Pointers to destination values, these will be completed with the normalised device coordinates (in the range {-1,1}).

Returns: true if the sphere was projected to a subset of the near plane, false if the entire near plane was contained.

Reimplemented in Ogre::Camera.

◆ enableCustomNearClipPlane() [1/2]

void Ogre::Frustum::enableCustomNearClipPlane ( const MovablePlane * plane )

Links the frustum to a custom near clip plane, which can be used to clip geometry in a custom manner without using user clip planes.

Remarks: There are several applications for clipping a scene arbitrarily by a single plane; the most common is when rendering a reflection to a texture, and you only want to render geometry that is above the water plane (to do otherwise results in artefacts). Whilst it is possible to use user clip planes, they are not supported on all cards, and sometimes are not hardware accelerated when they are available. Instead, where a single clip plane is involved, this technique uses a 'fudging' of the near clip plane, which is available and fast on all hardware, to perform as the arbitrary clip plane. This does change the shape of the frustum, leading to some depth buffer loss of precision, but for many of the uses of this technique that is not an issue.

: This version of the method links to a plane, rather than requiring a by-value plane definition, and therefore you can make changes to the plane (e.g. by moving / rotating the node it is attached to) and they will automatically affect this object.

Note: This technique only works for perspective projection.

Parameters

plane The plane to link to to perform the clipping. This plane must continue to exist while the camera is linked to it; do not destroy it before the frustum.

◆ enableCustomNearClipPlane() [2/2]

void Ogre::Frustum::enableCustomNearClipPlane ( const Plane & plane )

Links the frustum to a custom near clip plane, which can be used to clip geometry in a custom manner without using user clip planes.

Remarks: There are several applications for clipping a scene arbitrarily by a single plane; the most common is when rendering a reflection to a texture, and you only want to render geometry that is above the water plane (to do otherwise results in artefacts). Whilst it is possible to use user clip planes, they are not supported on all cards, and sometimes are not hardware accelerated when they are available. Instead, where a single clip plane is involved, this technique uses a 'fudging' of the near clip plane, which is available and fast on all hardware, to perform as the arbitrary clip plane. This does change the shape of the frustum, leading to some depth buffer loss of precision, but for many of the uses of this technique that is not an issue.

Note: This technique only works for perspective projection.

Parameters

plane The plane to link to to perform the clipping. This plane must continue to exist while the camera is linked to it; do not destroy it before the frustum.

◆ disableCustomNearClipPlane()

void Ogre::Frustum::disableCustomNearClipPlane ( void )

Disables any custom near clip plane.

◆ isCustomNearClipPlaneEnabled()

bool Ogre::Frustum::isCustomNearClipPlaneEnabled ( void ) const

inline

Is a custom near clip plane in use?

◆ visitRenderables()

void Ogre::Frustum::visitRenderables	(	Renderable::Visitor *	visitor,
		bool	debugRenderables = `false`
	)

virtual

Method to allow a caller to abstractly iterate over the Renderable instances that this MovableObject will add to the render queue when asked, if any.

Parameters

visitor	Pointer to a class implementing the Renderable::Visitor interface which will be called back for each Renderable which will be queued. Bear in mind that the state of the Renderable instances may not be finalised depending on when you call this.
debugRenderables	If false, only regular renderables will be visited (those for normal display). If true, debug renderables will be included too.

Implements Ogre::MovableObject.

◆ getPositionForViewUpdate()

virtual const Vector3& Ogre::Frustum::getPositionForViewUpdate ( void ) const

virtual

Get the derived position of this frustum.

Reimplemented in Ogre::Camera.

◆ getOrientationForViewUpdate()

virtual const Quaternion& Ogre::Frustum::getOrientationForViewUpdate ( void ) const

virtual

Get the derived orientation of this frustum.

Reimplemented in Ogre::Camera.

◆ getPlaneBoundedVolume()

PlaneBoundedVolume Ogre::Frustum::getPlaneBoundedVolume ( )

Gets a world-space list of planes enclosing the frustum.

◆ setOrientationMode()

void Ogre::Frustum::setOrientationMode ( OrientationMode orientationMode )

Set the orientation mode of the frustum.

Default is OR_DEGREE_0

Remarks: Setting the orientation of a frustum is only supported on iOS at this time. An exception is thrown on other platforms.

◆ getOrientationMode()

OrientationMode Ogre::Frustum::getOrientationMode ( ) const

Get the orientation mode of the frustum.

Remarks: Getting the orientation of a frustum is only supported on iOS at this time. An exception is thrown on other platforms.

◆ _notifyCreator()

virtual void Ogre::MovableObject::_notifyCreator ( MovableObjectFactory * fact )

inlinevirtualinherited

Notify the object of it's creator (internal use only)

◆ _getCreator()

MovableObjectFactory* Ogre::MovableObject::_getCreator ( void ) const

inlineinherited

Get the creator of this object, if any (internal use only)

◆ _notifyManager()

virtual void Ogre::MovableObject::_notifyManager ( SceneManager * man )

inlinevirtualinherited

Notify the object of it's manager (internal use only)

◆ _getManager()

SceneManager* Ogre::MovableObject::_getManager ( void ) const

inlineinherited

Get the manager of this object, if any (internal use only)

◆ _releaseManualHardwareResources()

virtual void Ogre::MovableObject::_releaseManualHardwareResources ( )

inlinevirtualinherited

Notifies the movable object that hardware resources were lost.

Remarks: Called automatically by RenderSystem if hardware resources were lost and can not be restored using some internal mechanism. Among affected resources are nested shadow renderables, ManualObjects, etc.

Reimplemented in Ogre::BillboardSet, Ogre::StaticGeometry::Region, Ogre::Entity, and Ogre::ManualObject.

◆ _restoreManualHardwareResources()

virtual void Ogre::MovableObject::_restoreManualHardwareResources ( )

inlinevirtualinherited

Notifies the movable object that hardware resources should be restored.

Remarks: Called automatically by RenderSystem if hardware resources were lost and can not be restored using some internal mechanism. Among affected resources are nested shadow renderables, ManualObjects, etc.

Reimplemented in Ogre::StaticGeometry::Region, and Ogre::Entity.

◆ getName()

const String& Ogre::MovableObject::getName ( void ) const

inlineinherited

Returns the name of this object.

◆ getParentNode()

Node* Ogre::MovableObject::getParentNode ( void ) const

inlineinherited

Returns the node to which this object is attached.

Remarks: A MovableObject may be attached to either a SceneNode or to a TagPoint, the latter case if it's attached to a bone on an animated entity. Both are Node subclasses so this method will return either.

◆ getParentSceneNode()

SceneNode* Ogre::MovableObject::getParentSceneNode ( void ) const

inherited

Returns the scene node to which this object is attached.

Remarks: A MovableObject may be attached to either a SceneNode or to a TagPoint, the latter case if it's attached to a bone on an animated entity. This method will return the scene node of the parent entity if the latter is true.

◆ isParentTagPoint()

bool Ogre::MovableObject::isParentTagPoint ( ) const

inlineinherited

Gets whether the parent node is a TagPoint (or a SceneNode)

◆ _notifyAttached()

virtual void Ogre::MovableObject::_notifyAttached	(	Node *	parent,
		bool	isTagPoint = `false`
	)

virtualinherited

Internal method called to notify the object that it has been attached to a node.

Reimplemented in Ogre::Entity, Ogre::ParticleSystem, Ogre::Light, Ogre::PortalBase, and Ogre::InstancedEntity.

Referenced by Ogre::PortalBase::_notifyAttached().

◆ isAttached()

bool Ogre::MovableObject::isAttached ( void ) const

inlineinherited

Returns true if this object is attached to a SceneNode or TagPoint.

◆ detachFromParent()

void Ogre::MovableObject::detachFromParent ( void )

inherited

Detaches an object from a parent SceneNode or TagPoint, if attached.

◆ isInScene()

virtual bool Ogre::MovableObject::isInScene ( void ) const

virtualinherited

Returns true if this object is attached to a SceneNode or TagPoint, and this SceneNode / TagPoint is currently in an active part of the scene graph.

Reimplemented in Ogre::InstancedEntity.

◆ _notifyMoved()

virtual void Ogre::MovableObject::_notifyMoved ( void )

virtualinherited

Internal method called to notify the object that it has been moved.

Reimplemented in Ogre::Light, Ogre::PortalBase, Ogre::InstancedEntity, and Ogre::PCZLight.

◆ getWorldBoundingBox()

virtual const AxisAlignedBox& Ogre::MovableObject::getWorldBoundingBox ( bool derive = false ) const

virtualinherited

Retrieves the axis-aligned bounding box for this object in world coordinates.

Implements Ogre::ShadowCaster.

Reimplemented in Ogre::Entity, and Ogre::PortalBase.

◆ getWorldBoundingSphere()

virtual const Sphere& Ogre::MovableObject::getWorldBoundingSphere ( bool derive = false ) const

virtualinherited

Retrieves the worldspace bounding sphere for this object.

Reimplemented in Ogre::Entity, and Ogre::PortalBase.

◆ setVisible()

void Ogre::MovableObject::setVisible ( bool visible )

inlineinherited

Tells this object whether to be visible or not, if it has a renderable component.

Note: An alternative approach of making an object invisible is to detach it from it's SceneNode, or to remove the SceneNode entirely. Detaching a node means that structurally the scene graph changes. Once this change has taken place, the objects / nodes that have been removed have less overhead to the visibility detection pass than simply making the object invisible, so if you do this and leave the objects out of the tree for a long time, it's faster. However, the act of detaching / reattaching nodes is in itself more expensive than setting an object visibility flag, since in the latter case structural changes are not made. Therefore, small or frequent visibility changes are best done using this method; large or more longer term changes are best done by detaching.

Referenced by Ogre::Light::setVisible().

◆ getVisible()

bool Ogre::MovableObject::getVisible ( void ) const

inlineinherited

Gets this object whether to be visible or not, if it has a renderable component.

Remarks: Returns the value set by MovableObject::setVisible only.

◆ isVisible() [4/4]

virtual bool Ogre::MovableObject::isVisible ( void ) const

virtualinherited

Returns whether or not this object is supposed to be visible or not.

Remarks: Takes into account both upper rendering distance and visible flag.

Reimplemented in Ogre::StaticGeometry::Region.

Referenced by isCustomProjectionMatrixEnabled().

◆ setRenderingDistance()

void Ogre::MovableObject::setRenderingDistance ( Real dist )

inlineinherited

Sets the distance at which the object is no longer rendered.

Note: Camera::setUseRenderingDistance() needs to be called for this parameter to be used.

Parameters

dist	Distance beyond which the object will not be rendered (the default is 0, which means objects are always rendered).

◆ getRenderingDistance()

Real Ogre::MovableObject::getRenderingDistance ( void ) const

inlineinherited

Gets the distance at which batches are no longer rendered.

◆ setRenderingMinPixelSize()

void Ogre::MovableObject::setRenderingMinPixelSize ( Real pixelSize )

inlineinherited

Sets the minimum pixel size an object needs to be in both screen axes in order to be rendered.

Note: Camera::setUseMinPixelSize() needs to be called for this parameter to be used.

Parameters

pixelSize Number of minimum pixels (the default is 0, which means objects are always rendered).

◆ getRenderingMinPixelSize()

Real Ogre::MovableObject::getRenderingMinPixelSize ( ) const

inlineinherited

Returns the minimum pixel size an object needs to be in both screen axes in order to be rendered.

◆ setUserAny() [1/2]

void Ogre::MovableObject::setUserAny ( const Any & anything )

inlineinherited

Deprecated:: use UserObjectBindings::setUserAny via getUserObjectBindings() instead.

Sets any kind of user value on this object.

Remarks: This method allows you to associate any user value you like with this MovableObject. This can be a pointer back to one of your own classes for instance.

◆ getUserAny() [1/2]

const Any& Ogre::MovableObject::getUserAny ( void ) const

inlineinherited

Deprecated:: use UserObjectBindings::getUserAny via getUserObjectBindings() instead.

Retrieves the custom user value associated with this object.

◆ getUserObjectBindings() [1/4]

UserObjectBindings& Ogre::MovableObject::getUserObjectBindings ( )

inlineinherited

Return an instance of user objects binding associated with this class.

You can use it to associate one or more custom objects with this class instance.

See also: UserObjectBindings::setUserAny.

◆ getUserObjectBindings() [2/4]

const UserObjectBindings& Ogre::MovableObject::getUserObjectBindings ( ) const

inlineinherited

Return an instance of user objects binding associated with this class.

You can use it to associate one or more custom objects with this class instance.

See also: UserObjectBindings::setUserAny.

◆ setRenderQueueGroup()

virtual void Ogre::MovableObject::setRenderQueueGroup ( uint8 queueID )

virtualinherited

Sets the render queue group this entity will be rendered through.

Remarks: Render queues are grouped to allow you to more tightly control the ordering of rendered objects. If you do not call this method, all Entity objects default to the default queue (RenderQueue::getDefaultQueueGroup), which is fine for most objects. You may want to alter this if you want this entity to always appear in front of other objects, e.g. for a 3D menu system or such.

: See RenderQueue for more details.

Parameters

queueID Enumerated value of the queue group to use. See the enum RenderQueueGroupID for what kind of values can be used here.

Reimplemented in Ogre::ParticleSystem, and Ogre::Entity.

◆ setRenderQueueGroupAndPriority()

virtual void Ogre::MovableObject::setRenderQueueGroupAndPriority	(	uint8	queueID,
		ushort	priority
	)

virtualinherited

Sets the render queue group and group priority this entity will be rendered through.

Remarks: Render queues are grouped to allow you to more tightly control the ordering of rendered objects. Within a single render group there another type of grouping called priority which allows further control. If you do not call this method, all Entity objects default to the default queue and priority (RenderQueue::getDefaultQueueGroup, RenderQueue::getDefaultRenderablePriority), which is fine for most objects. You may want to alter this if you want this entity to always appear in front of other objects, e.g. for a 3D menu system or such.

: See RenderQueue for more details.

Parameters

queueID	Enumerated value of the queue group to use. See the enum RenderQueueGroupID for what kind of values can be used here.
priority	The priority within a group to use.

Reimplemented in Ogre::ParticleSystem, and Ogre::Entity.

◆ getRenderQueueGroup()

uint8 Ogre::MovableObject::getRenderQueueGroup ( void ) const

inlineinherited

Gets the queue group for this entity.

See also: setRenderQueueGroup

◆ _getParentNodeFullTransform()

virtual const Affine3& Ogre::MovableObject::_getParentNodeFullTransform ( void ) const

virtualinherited

Return the full transformation of the parent sceneNode or the attachingPoint node.

Reimplemented in Ogre::InstancedEntity.

◆ setQueryFlags()

void Ogre::MovableObject::setQueryFlags ( uint32 flags )

inlineinherited

Sets the query flags for this object.

Remarks: When performing a scene query, this object will be included or excluded according to flags on the object and flags on the query. This is a bitwise value, so only when a bit on these flags is set, will it be included in a query asking for that flag. The meaning of the bits is application-specific.

Remarks: As well as a simple true/false value for visibility (as seen in setVisible), you can also set visibility flags which when 'and'ed with the SceneManager's visibility mask can also make an object invisible.

Remarks: Note for size and performance reasons only one listener per object is allowed.

◆ getListener()

Listener* Ogre::MovableObject::getListener ( void ) const

inlineinherited

Gets the current listener for this object.

◆ queryLights()

const LightList& Ogre::MovableObject::queryLights ( void ) const

inherited

Gets a list of lights, ordered relative to how close they are to this movable object.

Remarks: By default, this method gives the listener a chance to populate light list first, if there is no listener or Listener::objectQueryLights returns NULL, it'll query the light list from parent entity if it is present, or returns SceneNode::findLights if it has parent scene node, otherwise it just returns an empty list.

: The object internally caches the light list, so it will recalculate it only when object is moved, or lights that affect the frustum have been changed (

See also: SceneManager::_getLightsDirtyCounter), but if listener exists, it will be called each time, so the listener should implement their own cache mechanism to optimise performance.

: This method can be useful when implementing Renderable::getLights in case the renderable is a part of the movable.

Returns: The list of lights use to lighting this object.

◆ getLightMask()

uint32 Ogre::MovableObject::getLightMask ( ) const

inlineinherited

Get a bitwise mask which will filter the lights affecting this object.

Remarks: By default, this mask is fully set meaning all lights will affect this object

◆ setLightMask()

void Ogre::MovableObject::setLightMask ( uint32 lightMask )

inherited

Set a bitwise mask which will filter the lights affecting this object.

Remarks: This mask will be compared against the mask held against Light to determine if a light should affect a given object. By default, this mask is fully set meaning all lights will affect this object

◆ _getLightList()

LightList* Ogre::MovableObject::_getLightList ( )

inlineinherited

Returns a pointer to the current list of lights for this object.

Remarks: You should not modify this list outside of MovableObject::Listener::objectQueryLights (say if you want to use it to implement this method, and use the pointer as a return value) and for reading it's only accurate as at the last frame.

◆ getEdgeList()

EdgeData* Ogre::MovableObject::getEdgeList ( void )

inlinevirtualinherited

Returns details of the edges which might be used to determine a silhouette.

Implements Ogre::ShadowCaster.

Reimplemented in Ogre::StaticGeometry::Region.

◆ hasEdgeList()

bool Ogre::MovableObject::hasEdgeList ( void )

inlinevirtualinherited

Returns whether the object has a valid edge list.

Implements Ogre::ShadowCaster.

Reimplemented in Ogre::StaticGeometry::Region.

◆ getShadowVolumeRenderableIterator()

ShadowRenderableListIterator Ogre::MovableObject::getShadowVolumeRenderableIterator	(	ShadowTechnique	shadowTechnique,
		const Light *	light,
		HardwareIndexBufferSharedPtr *	indexBuffer,
		size_t *	indexBufferUsedSize,
		bool	extrudeVertices,
		Real	extrusionDist,
		unsigned long	flags = `0`
	)

virtualinherited

Define a default implementation of method from ShadowCaster which implements no shadows.

Implements Ogre::ShadowCaster.

Reimplemented in Ogre::StaticGeometry::Region.

◆ getLightCapBounds()

const AxisAlignedBox& Ogre::MovableObject::getLightCapBounds ( void ) const

virtualinherited

Overridden member from ShadowCaster.

Implements Ogre::ShadowCaster.

◆ getDarkCapBounds()

const AxisAlignedBox& Ogre::MovableObject::getDarkCapBounds	(	const Light &	light,
		Real	dirLightExtrusionDist
	)		const

virtualinherited

Overridden member from ShadowCaster.

Implements Ogre::ShadowCaster.

◆ setCastShadows()

void Ogre::MovableObject::setCastShadows ( bool enabled )

inlineinherited

Sets whether or not this object will cast shadows.

Remarks: This setting simply allows you to turn on/off shadows for a given object. An object will not cast shadows unless the scene supports it in any case (see SceneManager::setShadowTechnique), and also the material which is in use must also have shadow casting enabled. By default all entities cast shadows. If, however, for some reason you wish to disable this for a single object then you can do so using this method.

Note: This method normally refers to objects which block the light, but since Light is also a subclass of MovableObject, in that context it means whether the light causes shadows itself.

◆ getCastShadows()

bool Ogre::MovableObject::getCastShadows ( void ) const

inlinevirtualinherited

Returns whether shadow casting is enabled for this object.

Implements Ogre::ShadowCaster.

◆ getReceivesShadows()

bool Ogre::MovableObject::getReceivesShadows ( )

inherited

Returns whether the Material of any Renderable that this MovableObject will add to the render queue will receive shadows.

◆ getPointExtrusionDistance()

Real Ogre::MovableObject::getPointExtrusionDistance ( const Light * l ) const

virtualinherited

Get the distance to extrude for a point/spot light.

Implements Ogre::ShadowCaster.

◆ setDebugDisplayEnabled()

void Ogre::MovableObject::setDebugDisplayEnabled ( bool enabled )

inlineinherited

Sets whether or not the debug display of this object is enabled.

Remarks: Some objects aren't visible themselves but it can be useful to display a debug representation of them. Or, objects may have an additional debug display on top of their regular display. This option enables / disables that debug display. Objects that are not visible never display debug geometry regardless of this setting.

◆ isDebugDisplayEnabled()

bool Ogre::MovableObject::isDebugDisplayEnabled ( void ) const

inlineinherited

Gets whether debug display of this object is enabled.

◆ clearShadowRenderableList()

static void Ogre::ShadowCaster::clearShadowRenderableList ( ShadowRenderableList & shadowRenderables )

staticinherited

Common implementation of releasing shadow renderables.

◆ extrudeVertices()

static void Ogre::ShadowCaster::extrudeVertices	(	const HardwareVertexBufferSharedPtr &	vertexBuffer,
		size_t	originalVertexCount,
		const Vector4 &	lightPos,
		Real	extrudeDist
	)

staticinherited

Utility method for extruding vertices based on a light.

Remarks: Unfortunately, because D3D cannot handle homogeneous (4D) position coordinates in the fixed-function pipeline (GL can, but we have to be cross-API), when we extrude in software we cannot extrude to infinity the way we do in the vertex program (by setting w to 0.0f). Therefore we extrude by a fixed distance, which may cause some problems with larger scenes. Luckily better hardware (ie vertex programs) can fix this.

Parameters

vertexBuffer	The vertex buffer containing ONLY xyz position values, which must be originalVertexCount * 2 * 3 floats long.
originalVertexCount	The count of the original number of vertices, i.e. the number in the mesh, not counting the doubling which has already been done (by VertexData::prepareForShadowVolume) to provide the extruded area of the buffer.
lightPos	4D light position in object space, when w=0.0f this represents a directional light.
extrudeDist	The distance to extrude.

◆ getAnimableValueNames()

const StringVector& Ogre::AnimableObject::getAnimableValueNames ( void ) const

inlineinherited

Gets a list of animable value names for this object.

References Ogre::Exception::ERR_ITEM_NOT_FOUND, and OGRE_EXCEPT.

◆ createAnimableValue()

virtual AnimableValuePtr Ogre::AnimableObject::createAnimableValue ( const String & valueName )

inlinevirtualinherited

Create a reference-counted AnimableValuePtr for the named value.

Remarks: You can use the returned object to animate a value on this object, using AnimationTrack. Subclasses must override this if they wish to support animation of their values.

Reimplemented in Ogre::Light.

References Ogre::Exception::ERR_ITEM_NOT_FOUND, and OGRE_EXCEPT.

◆ getTechnique()

virtual Technique* Ogre::Renderable::getTechnique ( void ) const

inlinevirtualinherited

Retrieves a pointer to the Material Technique this renderable object uses.

Remarks: This is to allow Renderables to use a chosen Technique if they wish, otherwise they will use the best Technique available for the Material they are using.

Reimplemented in Ogre::InstanceBatch, Ogre::StaticGeometry::GeometryBucket, and Ogre::SubEntity.

◆ preRender()

virtual bool Ogre::Renderable::preRender	(	SceneManager *	sm,
		RenderSystem *	rsys
	)

inlinevirtualinherited

Called just prior to the Renderable being rendered.

Remarks: OGRE is a queued renderer, so the actual render commands are executed at a later time than the point at which an object is discovered to be visible. This allows ordering & grouping of renders without the discovery process having to be aware of it. It also means OGRE uses declarative render information rather than immediate mode rendering - this is very useful in that certain effects and processes can automatically be applied to a wide range of scenes, but the downside is that special cases are more difficult to handle, because there is not the declared state to cope with it.

: This method allows a Renderable to do something special at the actual point of rendering if it wishes to. When this method is called, all the material render state as declared by this Renderable has already been set, all that is left to do is to bind the buffers and perform the render. The Renderable may modify render state itself if it wants to (and restore it in the postRender call) before the automated render happens, or by returning 'false' from this method can actually suppress the automatic render and perform one of its own.

Returns: true if the automatic render should proceed, false to skip it on the assumption that the Renderable has done it manually.

Reimplemented in Ogre::BillboardChain.

◆ postRender()

virtual void Ogre::Renderable::postRender	(	SceneManager *	sm,
		RenderSystem *	rsys
	)

inlinevirtualinherited

Called immediately after the Renderable has been rendered.

◆ getNumWorldTransforms()

virtual unsigned short Ogre::Renderable::getNumWorldTransforms ( void ) const

inlinevirtualinherited

Returns the number of world transform matrices this renderable requires.

Remarks: When a renderable uses vertex blending, it uses multiple world matrices instead of a single one. Each vertex sent to the pipeline can reference one or more matrices in this list with given weights. If a renderable does not use vertex blending this method returns 1, which is the default for simplicity.

Reimplemented in Ogre::BorderRenderable, Ogre::SubEntity, Ogre::BaseInstanceBatchVTF, Ogre::InstanceBatchHW, and Ogre::InstanceBatchShader.

◆ setUseIdentityProjection()

void Ogre::Renderable::setUseIdentityProjection ( bool useIdentityProjection )

inlineinherited

Sets whether or not to use an 'identity' projection.

Remarks: Usually Renderable objects will use a projection matrix as determined by the active camera. However, if they want they can cancel this out and use an identity projection, which effectively projects in 2D using a {-1, 1} view space. Useful for overlay rendering. Normal renderables need not change this. The default is false.

See also: Renderable::getUseIdentityProjection

◆ getUseIdentityProjection()

bool Ogre::Renderable::getUseIdentityProjection ( void ) const

inlineinherited

Returns whether or not to use an 'identity' projection.

Remarks: Usually Renderable objects will use a projection matrix as determined by the active camera. However, if they want they can cancel this out and use an identity projection, which effectively projects in 2D using a {-1, 1} view space. Useful for overlay rendering. Normal renderables need not change this.

See also: Renderable::setUseIdentityProjection

◆ setUseIdentityView()

void Ogre::Renderable::setUseIdentityView ( bool useIdentityView )

inlineinherited

Sets whether or not to use an 'identity' view.

Remarks: Usually Renderable objects will use a view matrix as determined by the active camera. However, if they want they can cancel this out and use an identity matrix, which means all geometry is assumed to be relative to camera space already. Useful for overlay rendering. Normal renderables need not change this. The default is false.

See also: Renderable::getUseIdentityView

◆ getUseIdentityView()

bool Ogre::Renderable::getUseIdentityView ( void ) const

inlineinherited

Returns whether or not to use an 'identity' view.

Remarks: Usually Renderable objects will use a view matrix as determined by the active camera. However, if they want they can cancel this out and use an identity matrix, which means all geometry is assumed to be relative to camera space already. Useful for overlay rendering. Normal renderables need not change this.

See also: Renderable::setUseIdentityView

◆ getCastsShadows()

virtual bool Ogre::Renderable::getCastsShadows ( void ) const

inlinevirtualinherited

Method which reports whether this renderable would normally cast a shadow.

Remarks: Subclasses should override this if they could have been used to generate a shadow.

Reimplemented in Ogre::SubEntity, and Ogre::StaticGeometry::GeometryBucket.

◆ setCustomParameter()

void Ogre::Renderable::setCustomParameter	(	size_t	index,
		const Vector4 &	value
	)

inlineinherited

Sets a custom parameter for this Renderable, which may be used to drive calculations for this specific Renderable, like GPU program parameters.

Remarks: Calling this method simply associates a numeric index with a 4-dimensional value for this specific Renderable. This is most useful if the material which this Renderable uses a vertex or fragment program, and has an ACT_CUSTOM parameter entry. This parameter entry can refer to the index you specify as part of this call, thereby mapping a custom parameter for this renderable to a program parameter.

Parameters

index	The index with which to associate the value. Note that this does not have to start at 0, and can include gaps. It also has no direct correlation with a GPU program parameter index - the mapping between the two is performed by the ACT_CUSTOM entry, if that is used.
value	The value to associate.

◆ removeCustomParameter()

void Ogre::Renderable::removeCustomParameter ( size_t index )

inlineinherited

Removes a custom value which is associated with this Renderable at the given index.

Parameters

index Index of the parameter to remove.

See also: setCustomParameter for full details.

◆ hasCustomParameter()

bool Ogre::Renderable::hasCustomParameter ( size_t index ) const

inlineinherited

Checks whether a custom value is associated with this Renderable at the given index.

Parameters

index Index of the parameter to check for existence.

See also: setCustomParameter for full details.

◆ getCustomParameter()

const Vector4& Ogre::Renderable::getCustomParameter ( size_t index ) const

inlineinherited

Gets the custom value associated with this Renderable at the given index.

Parameters

index Index of the parameter to retrieve.

See also: setCustomParameter for full details.

References Ogre::Exception::ERR_ITEM_NOT_FOUND, and OGRE_EXCEPT.

◆ _updateCustomGpuParameter()

virtual void Ogre::Renderable::_updateCustomGpuParameter	(	const GpuProgramParameters::AutoConstantEntry &	constantEntry,
		GpuProgramParameters *	params
	)		const

inlinevirtualinherited

Update a custom GpuProgramParameters constant which is derived from information only this Renderable knows.

Remarks: This method allows a Renderable to map in a custom GPU program parameter based on it's own data. This is represented by a GPU auto parameter of ACT_CUSTOM, and to allow there to be more than one of these per Renderable, the 'data' field on the auto parameter will identify which parameter is being updated. The implementation of this method must identify the parameter being updated, and call a 'setConstant' method on the passed in GpuProgramParameters object, using the details provided in the incoming auto constant setting to identify the index at which to set the parameter.

: You do not need to override this method if you're using the standard sets of data associated with the Renderable as provided by setCustomParameter and getCustomParameter. By default, the implementation will map from the value indexed by the 'constantEntry.data' parameter to a value previously set by setCustomParameter. But custom Renderables are free to override this if they want, in any case.

Parameters

constantEntry	The auto constant entry referring to the parameter being updated
params	The parameters object which this method should call to set the updated parameters.

Reimplemented in Ogre::SubEntity.

References Ogre::GpuProgramParameters::_writeRawConstant(), Ogre::GpuProgramParameters::AutoConstantEntry::data, Ogre::GpuProgramParameters::AutoConstantEntry::elementCount, and Ogre::GpuProgramParameters::AutoConstantEntry::physicalIndex.

◆ setPolygonModeOverrideable()

void Ogre::Renderable::setPolygonModeOverrideable ( bool override )

inlineinherited

Sets whether this renderable's chosen detail level can be overridden (downgraded) by the camera setting.

Parameters

override true means that a lower camera detail will override this renderables detail level, false means it won't.

◆ getPolygonModeOverrideable()

bool Ogre::Renderable::getPolygonModeOverrideable ( void ) const

inlineinherited

Gets whether this renderable's chosen detail level can be overridden (downgraded) by the camera setting.

Referenced by Ogre::BorderRenderable::getPolygonModeOverrideable().

◆ setUserAny() [2/2]

void Ogre::Renderable::setUserAny ( const Any & anything )

inlineinherited

Deprecated:: use UserObjectBindings::setUserAny via getUserObjectBindings() instead.

Sets any kind of user value on this object.

Remarks: This method allows you to associate any user value you like with this Renderable. This can be a pointer back to one of your own classes for instance.

Referenced by Ogre::InstanceBatch::getRenderOperation().

◆ getUserAny() [2/2]

const Any& Ogre::Renderable::getUserAny ( void ) const

inlineinherited

Deprecated:: use UserObjectBindings::getUserAny via getUserObjectBindings() instead.

Retrieves the custom user value associated with this object.

Referenced by Ogre::InstanceBatch::getRenderOperation().

◆ getUserObjectBindings() [3/4]

UserObjectBindings& Ogre::Renderable::getUserObjectBindings ( )

inlineinherited

Return an instance of user objects binding associated with this class.

You can use it to associate one or more custom objects with this class instance.

See also: UserObjectBindings::setUserAny.

◆ getUserObjectBindings() [4/4]

const UserObjectBindings& Ogre::Renderable::getUserObjectBindings ( ) const

inlineinherited

Return an instance of user objects binding associated with this class.

You can use it to associate one or more custom objects with this class instance.

See also: UserObjectBindings::setUserAny.

◆ getRenderSystemData()

const RenderSystemDataPtr& Ogre::Renderable::getRenderSystemData ( ) const

inlineinherited

Gets RenderSystem private data.

Remarks: This should only be used by a RenderSystem

◆ setRenderSystemData()

void Ogre::Renderable::setRenderSystemData ( RenderSystemDataPtr val ) const

inlineinherited

Sets RenderSystem private data.

Remarks: This should only be used by a RenderSystem

Member Data Documentation

◆ INFINITE_FAR_PLANE_ADJUST

const Real Ogre::Frustum::INFINITE_FAR_PLANE_ADJUST

static

Small constant used to reduce far plane projection to avoid inaccuracies.

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

OgreFrustum.h

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Detailed Description

Member Typedef Documentation

◆ ShadowRenderableList

◆ ShadowRenderableListIterator

◆ RenderSystemDataPtr

Constructor & Destructor Documentation

◆ Frustum()

◆ ~Frustum()

Member Function Documentation

◆ setFOVy()

◆ getFOVy()

◆ setNearClipDistance()

◆ getNearClipDistance()

◆ setFarClipDistance()

◆ getFarClipDistance()

◆ setAspectRatio()

◆ getAspectRatio()

◆ setFrustumOffset() [1/2]

◆ setFrustumOffset() [2/2]

◆ getFrustumOffset()

◆ setFocalLength()

◆ getFocalLength()

◆ setFrustumExtents()

◆ resetFrustumExtents()

◆ getFrustumExtents() [1/2]

◆ getFrustumExtents() [2/2]

◆ getProjectionMatrixRS()

◆ getProjectionMatrixWithRSDepth()

◆ getProjectionMatrix()

◆ getViewMatrix()

◆ calcViewMatrixRelative()

◆ setCustomViewMatrix()

◆ isCustomViewMatrixEnabled()

◆ setCustomProjectionMatrix()

◆ isCustomProjectionMatrixEnabled()

◆ getFrustumPlanes()

◆ getFrustumPlane()

◆ isVisible() [1/4]

◆ isVisible() [2/4]

◆ isVisible() [3/4]

◆ getTypeFlags()

◆ getBoundingBox()

◆ getBoundingRadius()

◆ _updateRenderQueue()

◆ getMovableType()

◆ _notifyCurrentCamera()

◆ setMaterial()

◆ getMaterial()

◆ getRenderOperation()

◆ getWorldTransforms()

◆ getSquaredViewDepth()

◆ getLights()

◆ getWorldSpaceCorners()

◆ setProjectionType()

◆ getProjectionType()

◆ setOrthoWindow()

◆ setOrthoWindowHeight()

◆ setOrthoWindowWidth()

◆ getOrthoWindowHeight()

◆ getOrthoWindowWidth()

◆ enableReflection() [1/2]

◆ enableReflection() [2/2]

◆ disableReflection()

◆ isReflected()

◆ getReflectionMatrix()

◆ getReflectionPlane()

◆ projectSphere()

◆ enableCustomNearClipPlane() [1/2]

◆ enableCustomNearClipPlane() [2/2]

◆ disableCustomNearClipPlane()

◆ isCustomNearClipPlaneEnabled()

◆ visitRenderables()

◆ getPositionForViewUpdate()

◆ getOrientationForViewUpdate()

◆ getPlaneBoundedVolume()

◆ setOrientationMode()