MinVR::CameraOffAxis Class Reference

Inheritance diagram for MinVR::CameraOffAxis:

Public Member Functions
	CameraOffAxis (glm::vec3 topLeft, glm::vec3 topRight, glm::vec3 botLeft, glm::vec3 botRight, glm::mat4 initialHeadFrame, double interOcularDistance, double nearClipDist, double farClipDist)
virtual	~CameraOffAxis ()
virtual void	updateHeadTrackingFrame (glm::mat4 newHeadFrame)
	Updates the camera's current head position. More...
virtual void	applyProjectionAndCameraMatrices ()
	Sets the openGL matrices. More...
virtual void	applyProjectionAndCameraMatricesForLeftEye ()
	Sets the openGL matrices. More...
virtual void	applyProjectionAndCameraMatricesForRightEye ()
	Sets the openGL matrices. More...
virtual void	setObjectToWorldMatrix (glm::mat4 obj2World)
	Sets the object to world matrix. More...
glm::mat4	getLeftEyeFrame ()
	Gets the current location of the left eye. More...
glm::mat4	getRightEyeFrame ()
	Gets the current location of the right eye. More...
Public Member Functions inherited from MinVR::AbstractCamera
	AbstractCamera ()
virtual	~AbstractCamera ()

Protected Member Functions
virtual void	applyProjectionAndCameraMatrices (const glm::mat4 &projectionMat, const glm::mat4 &viewMat)
glm::mat4	invertYMat ()
glm::mat4	perspectiveProjection (double left, double right, double bottom, double top, double nearval, double farval, float upDirection=-1.0)

Protected Attributes
glm::vec3	_topLeft
glm::vec3	_topRight
glm::vec3	_botLeft
glm::vec3	_botRight
glm::mat4	_headFrame
double	_iod
double	_nearClip
double	_farClip
double	_halfWidth
double	_halfHeight
glm::mat4	_room2tile
glm::mat4	_projection
glm::mat4	_projectionLeft
glm::mat4	_projectionRight
glm::mat4	_view
glm::mat4	_viewLeft
glm::mat4	_viewRight
glm::mat4	_object2World
glm::mat4	_currentViewMatrix

Detailed Description

An offaxis VR camera

This derived class represents an offaxis view frustrum. It should be used head tracking in front of a flat display tile or in a VR CAVE.

Constructor & Destructor Documentation

MinVR::CameraOffAxis::CameraOffAxis	(	glm::vec3	topLeft,
		glm::vec3	topRight,
		glm::vec3	botLeft,
		glm::vec3	botRight,
		glm::mat4	initialHeadFrame,
		double	interOcularDistance,
		double	nearClipDist,
		double	farClipDist
	)

virtual MinVR::CameraOffAxis::~CameraOffAxis ( )

virtual

Member Function Documentation

virtual void MinVR::CameraOffAxis::applyProjectionAndCameraMatrices ( )

virtual

This method sets the openGL projection and modelview matrices as if the camera is centered between the eyes. This is used for mono rendering.

Implements MinVR::AbstractCamera.

virtual void MinVR::CameraOffAxis::applyProjectionAndCameraMatrices ( const glm::mat4 &  projectionMat, const glm::mat4 &  viewMat  )

protectedvirtual

virtual void MinVR::CameraOffAxis::applyProjectionAndCameraMatricesForLeftEye ( )

virtual

This method sets the openGL projection and modelview matrices as if the camera is located at the left eye. This is used for stereoscopic rendering.

Implements MinVR::AbstractCamera.

virtual void MinVR::CameraOffAxis::applyProjectionAndCameraMatricesForRightEye ( )

virtual

This method sets the openGL projection and modelview matrices as if the camera is located at the right eye. This is used for stereoscopic rendering.

Implements MinVR::AbstractCamera.

glm::mat4 MinVR::CameraOffAxis::getLeftEyeFrame

(

)

Based on the current head position and interocular distance, this returns the left eye position

Returns

A coordinate frame representing the translation and rotation for the left eye position.

glm::mat4 MinVR::CameraOffAxis::getRightEyeFrame

(

)

Based on the current head position and interocular distance, this returns the right eye position

Returns

A coordinate frame representing the translation and rotation for the right eye position.

glm::mat4 MinVR::CameraOffAxis::invertYMat ( )

protected

glm::mat4 MinVR::CameraOffAxis::perspectiveProjection ( double  left, double  right, double  bottom, double  top, double  nearval, double  farval, float  upDirection = -1.0  )

protected

virtual void MinVR::CameraOffAxis::setObjectToWorldMatrix ( glm::mat4  obj2World)

virtual

This method sets the transformation between the current object (model) space and world (room) coordinate system. It is used when setting the opengl modelview matrix.

Implements MinVR::AbstractCamera.

virtual void MinVR::CameraOffAxis::updateHeadTrackingFrame ( glm::mat4  newHeadFrame)

virtual

This method is called by the MVREngine to update the current head position. It also recalculates the current offaxis projection matrix based on the head position and modelview matrix.

Parameters

[in]

The

new head position.

Implements MinVR::AbstractCamera.

Member Data Documentation

glm::vec3 MinVR::CameraOffAxis::_botLeft

protected

glm::vec3 MinVR::CameraOffAxis::_botRight

protected

glm::mat4 MinVR::CameraOffAxis::_currentViewMatrix

protected

double MinVR::CameraOffAxis::_farClip

protected

double MinVR::CameraOffAxis::_halfHeight

protected

double MinVR::CameraOffAxis::_halfWidth

protected

glm::mat4 MinVR::CameraOffAxis::_headFrame

protected

double MinVR::CameraOffAxis::_iod

protected

double MinVR::CameraOffAxis::_nearClip

protected

glm::mat4 MinVR::CameraOffAxis::_object2World

protected

glm::mat4 MinVR::CameraOffAxis::_projection

protected

glm::mat4 MinVR::CameraOffAxis::_projectionLeft

protected

glm::mat4 MinVR::CameraOffAxis::_projectionRight

protected

glm::mat4 MinVR::CameraOffAxis::_room2tile

protected

glm::vec3 MinVR::CameraOffAxis::_topLeft

protected

glm::vec3 MinVR::CameraOffAxis::_topRight

protected

glm::mat4 MinVR::CameraOffAxis::_view

protected

glm::mat4 MinVR::CameraOffAxis::_viewLeft

protected

glm::mat4 MinVR::CameraOffAxis::_viewRight

protected

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

• CameraOffAxis.H