The camera object defines the view and projection matrices of a scene. More...

#include <Camera.h>

Public Member Functions
	Camera ()
	Constructor loading standard values for position, orientation and projection. More...

	Camera (GLfloat fov, GLfloat aspect, GLfloat near, GLfloat far)
	Constructor loading standard values for position and orientation. More...

	Camera (const vmml::Vector3f &position, const vmml::Vector3f &rotationAxes)
	Constructor loading standard values for projection. More...

	Camera (const vmml::Vector3f &position, const vmml::Vector3f &rotationAxes, GLfloat fov, GLfloat aspect, GLfloat near, GLfloat far)
	Constructor. More...

virtual	~Camera ()
	Virtual destructor. More...

virtual void	moveCameraForward (GLfloat camSpeed)
	Moves the camera forward with a certain speed (based on previous position) More...

virtual void	moveCameraSideward (GLfloat camSpeed)
	Moves the camera to the right with a certain speed (based on previous position) More...

virtual void	moveCameraUpward (GLfloat camSpeed)
	Moves the camera upwards with a certain speed (based on previous position) More...

virtual void	rotateCamera (GLfloat rotationX, GLfloat rotationY, GLfloat rotationZ)
	Rotates the camera based on previous orientation. More...

virtual void	resetCamera ()
	Resets camera to the default position orientation. More...

void	setPosition (const vmml::Vector3f &position)
	Sets the position of the camera. More...

void	setRotation (const vmml::Vector3f &rotationAxes)
	Sets the rotation matrix of the camera. More...

void	setFieldOfView (GLfloat fov)
	Sets field of view. More...

void	setAspectRatio (GLfloat aspect)
	Sets aspect ratio. More...

void	setNearClippingPlane (GLfloat near)
	Sets near clipping plane. More...

void	setFarClippingPlane (GLfloat far)
	Sets far clipping plane. More...

virtual vmml::Matrix4f	getViewMatrix ()
	Returns the view matrix of the camera. More...

virtual vmml::Matrix4f	getInverseViewMatrix ()
	Returns the inverse of the view matrix of the camera. More...

virtual vmml::Matrix4f	getProjectionMatrix ()
	Returns the view projection of the camera. More...

const vmml::Vector3f &	getPosition ()
	Returns the position of the camera. More...

virtual vmml::Matrix4f	getRotation ()
	Returns the rotation matrix of the camera. More...

virtual vmml::Matrix4f	getInverseRotation ()
	Returns the inverse of the rotation matrix of the camera. More...

virtual vmml::Matrix4f	getInverseRotationX ()
	Returns the inverse of the x-axis of the rotation matrix. More...

virtual vmml::Matrix4f	getInverseRotationY ()
	Returns the inverse of the y-axis of the rotation matrix. More...

virtual vmml::Matrix4f	getInverseRotationZ ()
	Returns the inverse of the z-axis of the rotation matrix. More...

virtual vmml::Vector3f	getForward ()
	Returns the orientation of the camera. More...

virtual vmml::Vector3f	getRight ()
	Returns the right vector of the camera. More...

virtual vmml::Vector3f	getUp ()
	Returns the up vector of the camera. More...

Static Public Member Functions
static vmml::Matrix4f	lookAt (const vmml::Vector3f &eye, const vmml::Vector3f &target, const vmml::Vector3f &up)
	Create a simple look at matrix. More...

static vmml::Matrix4f	createPerspective (GLfloat fov, GLfloat aspect, GLfloat near, GLfloat far)
	Create a 3D perspective. More...

Detailed Description

The camera object defines the view and projection matrices of a scene.

Author: Benjamin Buergisser

Constructor & Destructor Documentation

Camera::Camera ( )

Constructor loading standard values for position, orientation and projection.

Camera::Camera	(	GLfloat	fov,
		GLfloat	aspect,
		GLfloat	near,
		GLfloat	far
	)

Constructor loading standard values for position and orientation.

Parameters

[in]	fov	Field of view
[in]	aspect	Aspect ratio
[in]	near	Near clipping plane
[in]	far	Far clipping plane

Camera::Camera	(	const vmml::Vector3f &	position,
		const vmml::Vector3f &	rotationAxes
	)

Constructor loading standard values for projection.

Parameters

[in]	position	Position of the camera
[in]	rotationAxes	Rotation axes of the camera

Camera::Camera	(	const vmml::Vector3f &	position,
		const vmml::Vector3f &	rotationAxes,
		GLfloat	fov,
		GLfloat	aspect,
		GLfloat	near,
		GLfloat	far
	)

Constructor.

Parameters

[in]	position	Position of the camera
[in]	rotationAxes	Rotation axes of the camera
[in]	fov	Field of view
[in]	aspect	Aspect ratio
[in]	near	Near clipping plane
[in]	far	Far clipping plane

virtual Camera::~Camera ( )

inlinevirtual

Virtual destructor.

Member Function Documentation

vmml::Matrix4f Camera::createPerspective	(	GLfloat	fov,
		GLfloat	aspect,
		GLfloat	near,
		GLfloat	far
	)

static

Create a 3D perspective.

Parameters

[in]	fov	Field of view
[in]	aspect	Aspect ratio
[in]	near	Near clipping plane
[in]	far	Far clipping plane

vmml::Vector3f Camera::getForward ( )

virtual

Returns the orientation of the camera.

vmml::Matrix4f Camera::getInverseRotation ( )

virtual

Returns the inverse of the rotation matrix of the camera.

The inverse view matrix may be useful to keep an object to face the camera (e.g. a sprite)

vmml::Matrix4f Camera::getInverseRotationX ( )

virtual

Returns the inverse of the x-axis of the rotation matrix.

vmml::Matrix4f Camera::getInverseRotationY ( )

virtual

Returns the inverse of the y-axis of the rotation matrix.

vmml::Matrix4f Camera::getInverseRotationZ ( )

virtual

Returns the inverse of the z-axis of the rotation matrix.

vmml::Matrix4f Camera::getInverseViewMatrix ( )

virtual

Returns the inverse of the view matrix of the camera.

The inverse view matrix may be useful to keep an object at the cameras position

const vmml::Vector3f& Camera::getPosition ( )

inline

Returns the position of the camera.

vmml::Matrix4f Camera::getProjectionMatrix ( )

virtual

Returns the view projection of the camera.

vmml::Vector3f Camera::getRight ( )

virtual

Returns the right vector of the camera.

vmml::Matrix4f Camera::getRotation ( )

virtual

Returns the rotation matrix of the camera.

vmml::Vector3f Camera::getUp ( )

virtual

Returns the up vector of the camera.

vmml::Matrix4f Camera::getViewMatrix ( )

virtual

Returns the view matrix of the camera.

vmml::Matrix4f Camera::lookAt	(	const vmml::Vector3f &	eye,
		const vmml::Vector3f &	target,
		const vmml::Vector3f &	up
	)

static

Create a simple look at matrix.

Parameters

[in]	eye	Specifies the position of the eye point
[in]	target	Specifies the position of the reference point
[in]	up	Specifies the direction of the up vector

void Camera::moveCameraForward ( GLfloat camSpeed )

virtual

Moves the camera forward with a certain speed (based on previous position)

Parameters

[in] camSpeed The velocity of the movement

void Camera::moveCameraSideward ( GLfloat camSpeed )

virtual

Moves the camera to the right with a certain speed (based on previous position)

Parameters

[in] camSpeed The velocity of the movement

void Camera::moveCameraUpward ( GLfloat camSpeed )

virtual

Moves the camera upwards with a certain speed (based on previous position)

Parameters

[in] camSpeed The velocity of the movement

void Camera::resetCamera ( )

virtual

Resets camera to the default position orientation.

void Camera::rotateCamera	(	GLfloat	rotationX,
		GLfloat	rotationY,
		GLfloat	rotationZ
	)

virtual

Rotates the camera based on previous orientation.

Parameters

[in]	rotationX	The rotation around the x axis in radians
[in]	rotationY	The rotation around the y axis in radians
[in]	rotationZ	The rotation around the z axis in radians

void Camera::setAspectRatio ( GLfloat aspect )

inline

Sets aspect ratio.

Parameters

[in] aspect Aspect ratio

void Camera::setFarClippingPlane ( GLfloat far )

inline

Sets far clipping plane.

Parameters

[in] far Far clipping plane

void Camera::setFieldOfView ( GLfloat fov )

inline

Sets field of view.

Parameters

[in] fov Field of view

void Camera::setNearClippingPlane ( GLfloat near )

inline

Sets near clipping plane.

Parameters

[in] near Near clipping plane

void Camera::setPosition ( const vmml::Vector3f & position )

inline

Sets the position of the camera.

Parameters

[in] position Position of the camera

void Camera::setRotation ( const vmml::Vector3f & rotationAxes )

inline

Sets the rotation matrix of the camera.

Parameters

[in] rotationAxes Rotation axes of the camera

Public Member Functions

Static Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation