Package com.ardor3d.extension.shadow.map

Class PSSMCamera

java.lang.Object

com.ardor3d.renderer.Camera

com.ardor3d.extension.shadow.map.PSSMCamera

All Implemented Interfaces:

Savable, Externalizable, Serializable

public class PSSMCamera
extends Camera

Camera with additional pssm related functionality.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.ardor3d.renderer.Camera

Camera.FrustumIntersect, Camera.ProjectionMode

Field Summary

Fields

Modifier and Type	Field	Description
protected final Vector3	_center	The center of the camera frustum.
protected final Vector3[]	_corners	The corners of the camera frustum.
protected final Vector3	_extents	Temporary vector used for storing extents during corner calculations.
protected double	_lambda	The lambda value used in split distance calculations.
protected double	_maxFarPlaneDistance	The maximum far plane distance used when packing the frustum.
protected double[]	_splitDistances	The storage place for calculated split distances.

Fields inherited from class com.ardor3d.renderer.Camera

_coeffBottom, _coeffLeft, _coeffRight, _coeffTop, _depthRangeDirty, _depthRangeFar, _depthRangeNear, _direction, _fovY, _frameDirty, _frustumBottom, _frustumDirty, _frustumFar, _frustumLeft, _frustumNear, _frustumRight, _frustumTop, _height, _left, _location, _matrixBuffer, _modelView, _planeQuantity, _projection, _tempVector, _up, _viewPortBottom, _viewPortDirty, _viewPortLeft, _viewPortRight, _viewPortTop, _width, _worldPlane, BOTTOM_PLANE, FAR_PLANE, FRUSTUM_PLANES, LEFT_PLANE, MAX_WORLD_PLANES, NEAR_PLANE, RIGHT_PLANE, TOP_PLANE

Constructor Summary

Constructors

Constructor	Description
PSSMCamera()	Instantiates a new PSSM camera.
PSSMCamera(int width, int height)	Instantiates a new PSSM camera.
PSSMCamera(Camera source)	Instantiates a new PSSM camera.

Method Summary

Modifier and Type	Method	Description
void	calculateFrustum(double fNear, double fFar)	Calculate frustum corners and center.
void	calculateSplitDistances(int splitCount)	Calculates the distances from view location for view frustum splits using the "practical split scheme".
double	getLambda()	Gets the lambda.
double	getMaxFarPlaneDistance()	Gets the max far plane distance.
double[]	getSplitDistances()	Gets the split distances.
void	pack(BoundingVolume sceneBounds)	Compress this camera's near and far frustum planes to be smaller if possible, using the given bounds as a measure.
void	setLambda(double lambda)	Sets the lambda.
void	setMaxFarPlaneDistance(double maxFarPlaneDistance)	Sets the max far plane distance.
void	updateMaxCameraFar()

Methods inherited from class com.ardor3d.renderer.Camera

apply, applyModelViewMatrix, applyProjectionMatrix, applyViewport, contains, getClassTag, getCurrentCamera, getDepthRangeFar, getDepthRangeNear, getDirection, getFovY, getFrustumBottom, getFrustumCoordinates, getFrustumCoordinates, getFrustumFar, getFrustumLeft, getFrustumNear, getFrustumRight, getFrustumTop, getHeight, getLeft, getLocation, getModelViewMatrix, getModelViewProjectionInverseMatrix, getModelViewProjectionMatrix, getNormalizedDeviceCoordinates, getNormalizedDeviceCoordinates, getPickRay, getPlaneState, getProjectionMatrix, getProjectionMode, getScreenCoordinates, getScreenCoordinates, getUp, getViewPortBottom, getViewPortLeft, getViewPortRight, getViewPortTop, getWidth, getWorldCoordinates, getWorldCoordinates, isFrameDirty, lookAt, lookAt, normalize, onFrameChange, onFrustumChange, onViewPortChange, read, readExternal, resize, set, setAxes, setAxes, setDepthRangeFar, setDepthRangeNear, setDirection, setFrame, setFrame, setFrame, setFrustum, setFrustum, setFrustumBottom, setFrustumFar, setFrustumLeft, setFrustumNear, setFrustumPerspective, setFrustumRight, setFrustumTop, setLeft, setLocation, setLocation, setPlaneState, setProjectionMatrix, setProjectionMode, setUp, setViewPort, setViewPortBottom, setViewPortLeft, setViewPortRight, setViewPortTop, toString, update, updateModelViewMatrix, updateProjectionMatrix, write, writeExternal

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

_splitDistances

protected double[] _splitDistances

The storage place for calculated split distances.

_lambda

protected double _lambda

The lambda value used in split distance calculations.

_corners

protected final Vector3[] _corners

The corners of the camera frustum.

_center

protected final Vector3 _center

The center of the camera frustum.

_extents

protected final Vector3 _extents

Temporary vector used for storing extents during corner calculations.

_maxFarPlaneDistance

protected double _maxFarPlaneDistance

The maximum far plane distance used when packing the frustum.

Constructor Details

PSSMCamera

public PSSMCamera()

Instantiates a new PSSM camera.

PSSMCamera

public PSSMCamera(int width,
 int height)

Instantiates a new PSSM camera.

Parameters:

width - the width

height - the height

PSSMCamera

public PSSMCamera(Camera source)

Instantiates a new PSSM camera.

Parameters:

source - the source

Method Details

calculateSplitDistances

public void calculateSplitDistances(int splitCount)

Calculates the distances from view location for view frustum splits using the "practical split scheme".

Parameters:

splitCount - the split count

See Also:

• technique paper

pack

public void pack(BoundingVolume sceneBounds)

Compress this camera's near and far frustum planes to be smaller if possible, using the given bounds as a measure.

Parameters:

sceneBounds - the scene bounds

updateMaxCameraFar

public void updateMaxCameraFar()

calculateFrustum

public void calculateFrustum(double fNear,
 double fFar)

Calculate frustum corners and center.

Parameters:

fNear - the near distance

fFar - the far distance

getLambda

public double getLambda()

Gets the lambda.

Returns:

the lambda

setLambda

public void setLambda(double lambda)

Sets the lambda.

Parameters:

lambda - the new lambda

getSplitDistances

public double[] getSplitDistances()

Gets the split distances.

Returns:

the split distances

getMaxFarPlaneDistance

public double getMaxFarPlaneDistance()

Gets the max far plane distance.

Returns:

the max far plane distance

setMaxFarPlaneDistance

public void setMaxFarPlaneDistance(double maxFarPlaneDistance)

Sets the max far plane distance.

Parameters:

maxFarPlaneDistance - the new max far plane distance