#include <Camera.h>

Public Member Functions
	Camera ()

	~Camera ()

Transform Matrices
void	setWorldMatrix (const Matrix44 &mat)
	Set the world matrix. More...

const Matrix44 &	getWorldMatrix () const
	Return the world matrix. More...

void	setViewMatrix (const Matrix44 &mat)
	Set the view matrix. More...

const Matrix44 &	getViewMatrix () const
	Return the view matrix. More...

void	setProjectionMatrix (const Matrix44 &mat)
	Set the projection matrix. More...

const Matrix44 &	getProjectionMatrix () const
	Return the projection matrix. More...

Matrix44	getWorldViewProjMatrix () const
	Compute our full model-view-projection matrix. More...

Vector3	getViewPosition () const
	Derive viewer position from the view matrix. More...

Vector3	getViewDirection () const
	Derive viewer direction from the view matrix. More...

Viewport
void	setViewportSize (const Vector2 &size)
	Set the size of the viewport window. More...

const Vector2 &	getViewportSize () const
	Return the size of the viewport window. More...

Vector3	projectToViewport (Vector3 v)
	Project a position from object to viewport space. More...

Vector3	unprojectFromViewport (Vector3 v)
	Unproject a position from viewport to object space. More...

Arcball
void	arcballButtonEvent (const Vector2 &pos, bool pressed)
	Indicates a button state change, with pos being the instantaneous location of the mouse. More...

bool	applyArcballMotion (const Vector2 &pos)
	Apply mouse motion to the arcball state. More...

Matrix44	arcballMatrix () const
	Return the arcball matrix. More...

Static Public Member Functions
static CameraPtr	create ()
	Create a new camera. More...

Utilities
static Matrix44	createViewMatrix (const Vector3 &eye, const Vector3 &target, const Vector3 &up)
	Create a view matrix given an eye position, a target position and an up vector. More...

static Matrix44	createPerspectiveMatrix (float left, float right, float bottom, float top, float nearP, float farP)
	Create a perpective projection matrix given a set of clip planes with [-1,1] projected Z. More...

static Matrix44	createOrthographicMatrix (float left, float right, float bottom, float top, float nearP, float farP)
	Create an orthographic projection matrix given a set of clip planes with [-1,1] projected Z. More...

static Matrix44	createPerspectiveMatrixZP (float left, float right, float bottom, float top, float nearP, float farP)
	Create a perpective projection matrix given a set of clip planes with [0,1] projected Z. More...

static Matrix44	createOrthographicMatrixZP (float left, float right, float bottom, float top, float nearP, float farP)
	Create an orthographic projection matrix given a set of clip planes with [0,1] projected Z. More...

static Vector3	transformPointPerspective (const Matrix44 &m, const Vector3 &v)

Protected Attributes
Matrix44	_worldMatrix

Matrix44	_viewMatrix

Matrix44	_projectionMatrix

Vector2	_viewportSize

bool	_arcballActive

Vector2	_arcballLastPos

Quaternion	_arcballQuat

Quaternion	_arcballDelta

float	_arcballSpeed

Detailed Description

A simple camera class, supporting transform matrices and arcball functionality for object-viewing applications.

Definition at line 19 of file Camera.h.

Constructor & Destructor Documentation

Camera::Camera ( )

inline

Definition at line 22 of file Camera.h.

Camera::~Camera ( )

inline

Definition at line 32 of file Camera.h.

Member Function Documentation

bool Camera::applyArcballMotion ( const Vector2 & pos )

Apply mouse motion to the arcball state.

void Camera::arcballButtonEvent	(	const Vector2 &	pos,
		bool	pressed
	)

Indicates a button state change, with pos being the instantaneous location of the mouse.

Matrix44 Camera::arcballMatrix ( ) const

inline

Return the arcball matrix.

Definition at line 143 of file Camera.h.

static CameraPtr Camera::create ( )

inlinestatic

Create a new camera.

Definition at line 35 of file Camera.h.

static Matrix44 Camera::createOrthographicMatrix	(	float	left,
		float	right,
		float	bottom,
		float	top,
		float	nearP,
		float	farP
	)

static

Create an orthographic projection matrix given a set of clip planes with [-1,1] projected Z.

static Matrix44 Camera::createOrthographicMatrixZP	(	float	left,
		float	right,
		float	bottom,
		float	top,
		float	nearP,
		float	farP
	)

static

Create an orthographic projection matrix given a set of clip planes with [0,1] projected Z.

static Matrix44 Camera::createPerspectiveMatrix	(	float	left,
		float	right,
		float	bottom,
		float	top,
		float	nearP,
		float	farP
	)

static

Create a perpective projection matrix given a set of clip planes with [-1,1] projected Z.

static Matrix44 Camera::createPerspectiveMatrixZP	(	float	left,
		float	right,
		float	bottom,
		float	top,
		float	nearP,
		float	farP
	)

static

Create a perpective projection matrix given a set of clip planes with [0,1] projected Z.

static Matrix44 Camera::createViewMatrix	(	const Vector3 &	eye,
		const Vector3 &	target,
		const Vector3 &	up
	)

static

Create a view matrix given an eye position, a target position and an up vector.

const Matrix44& Camera::getProjectionMatrix ( ) const

inline

Return the projection matrix.

Definition at line 71 of file Camera.h.

Vector3 Camera::getViewDirection ( ) const

inline

Derive viewer direction from the view matrix.

Definition at line 90 of file Camera.h.

const Matrix44& Camera::getViewMatrix ( ) const

inline

Return the view matrix.

Definition at line 59 of file Camera.h.

const Vector2& Camera::getViewportSize ( ) const

inline

Return the size of the viewport window.

Definition at line 107 of file Camera.h.

Vector3 Camera::getViewPosition ( ) const

inline

Derive viewer position from the view matrix.

Definition at line 83 of file Camera.h.

const Matrix44& Camera::getWorldMatrix ( ) const

inline

Return the world matrix.

Definition at line 47 of file Camera.h.

Matrix44 Camera::getWorldViewProjMatrix ( ) const

inline

Compute our full model-view-projection matrix.

Definition at line 77 of file Camera.h.

Vector3 Camera::projectToViewport ( Vector3 v )

inline

Project a position from object to viewport space.

Definition at line 113 of file Camera.h.

void Camera::setProjectionMatrix ( const Matrix44 & mat )

inline

Set the projection matrix.

Definition at line 65 of file Camera.h.

void Camera::setViewMatrix ( const Matrix44 & mat )

inline

Set the view matrix.

Definition at line 53 of file Camera.h.

void Camera::setViewportSize ( const Vector2 & size )

inline

Set the size of the viewport window.

Definition at line 101 of file Camera.h.

void Camera::setWorldMatrix ( const Matrix44 & mat )

inline

Set the world matrix.

Definition at line 41 of file Camera.h.

static Vector3 Camera::transformPointPerspective	(	const Matrix44 &	m,
		const Vector3 &	v
	)

inlinestatic

Apply a perspective transform to the given 3D point, performing a homogeneous divide on the transformed result.

Definition at line 179 of file Camera.h.

Vector3 Camera::unprojectFromViewport ( Vector3 v )

inline

Unproject a position from viewport to object space.

Definition at line 123 of file Camera.h.

Member Data Documentation

bool Camera::_arcballActive

protected

Definition at line 197 of file Camera.h.

Quaternion Camera::_arcballDelta

protected

Definition at line 200 of file Camera.h.

Vector2 Camera::_arcballLastPos

protected

Definition at line 198 of file Camera.h.

Quaternion Camera::_arcballQuat

protected

Definition at line 199 of file Camera.h.

float Camera::_arcballSpeed

protected

Definition at line 201 of file Camera.h.

Matrix44 Camera::_projectionMatrix

protected

Definition at line 191 of file Camera.h.

Matrix44 Camera::_viewMatrix

protected

Definition at line 190 of file Camera.h.

Vector2 Camera::_viewportSize

protected

Definition at line 194 of file Camera.h.

Matrix44 Camera::_worldMatrix

protected

Definition at line 189 of file Camera.h.

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

MaterialXRender/Camera.h

Public Member Functions

Static Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation