A Tracked camera is typically attached to the HMD and can provide position and orientation data in addition to osg::textures with its video stream. Cameras are tracked by the Virtual Reality system and pose information is provided in the same coordinate system as the HMD and controllers.

Inheritance diagram for makVrv::DtTrackedCamera:

[legend]

Public Types
enum	Eye { Mono = 0, Left = 0, Right }

Public Member Functions
	DtTrackedCamera (DtDe &de)

virtual	~DtTrackedCamera ()

virtual osg::ref_ptr < osg::Texture2D >	texture (Eye id)

virtual osg::Matrixd	pose (Eye e)

virtual osg::Matrixd	projection ()

virtual bool	startStream ()=0

virtual void	stopStream ()=0

virtual void	toggleStreaming ()

virtual void	tick ()=0

virtual bool	isDualCamera ()

virtual void	setCameraFov (float x, float y)

virtual void	setCameraEye (float x, float y, float z, float pitch)

virtual void	resetCameraProjection ()=0

Protected Types
typedef unsigned long long	UInt64

Protected Member Functions
virtual void	addEyeTexture (int width, int height, unsigned char *buffer)

virtual void	invertBuffer ()

virtual osg::Matrixd	createProjectionMatrix (float zn, float zf, const float fovx=NULL, const float fovy=NULL)=0

Protected Attributes
DtDe &	myDe

bool	myIsStreaming

UInt64	myLastFrameSequence

unsigned int	myFrameWidth

unsigned int	myFrameHeight

unsigned int	myFrameBufferSize

unsigned char *	myFrameBuffer

unsigned char *	myFrameFlipBuffer

bool	myIsDualCamera

int	myDualFormat

std::vector< osg::ref_ptr < osg::Texture2D > >	myTextures

std::vector< osg::ref_ptr < osg::Image > >	myImages

osg::Matrixd	myProjection

osg::Matrixd	myView

std::vector< osg::Matrixd >	myHeadToCameraMatrix

int	myFrameType

Member Typedef Documentation

typedef unsigned long long makVrv::DtTrackedCamera::UInt64

protected

Member Enumeration Documentation

enum makVrv::DtTrackedCamera::Eye

Enumerator
Mono
Left
Right

Constructor & Destructor Documentation

makVrv::DtTrackedCamera::DtTrackedCamera ( DtDe & de )

CTOR.

virtual makVrv::DtTrackedCamera::~DtTrackedCamera ( )

virtual

DTOR.

Member Function Documentation

virtual osg::ref_ptr<osg::Texture2D> makVrv::DtTrackedCamera::texture ( Eye id )

virtual

get the osg texture for a given eye. The data for the texture is updated each frame.

virtual osg::Matrixd makVrv::DtTrackedCamera::pose ( Eye e )

virtual

Get the pose of the camera this frame. This is an ENU coordinate with respect to the observer.

virtual osg::Matrixd makVrv::DtTrackedCamera::projection ( )

virtual

get the projection matrix for the camera.

virtual bool makVrv::DtTrackedCamera::startStream ( )

pure virtual

start streaming video to the attached osg textures

Implemented in makVrv::DtOpenVRTrackedCamera.

virtual void makVrv::DtTrackedCamera::stopStream ( )

pure virtual

stop streaming video to the attached osg textures

Implemented in makVrv::DtOpenVRTrackedCamera.

virtual void makVrv::DtTrackedCamera::toggleStreaming ( )

virtual

toggle streaming video

virtual void makVrv::DtTrackedCamera::tick ( )

pure virtual

tick the camera to update position and texture data

Implemented in makVrv::DtOpenVRTrackedCamera.

virtual bool makVrv::DtTrackedCamera::isDualCamera ( )

inlinevirtual

whether or not this camera provides two video feeds simultaneously for stereo vision.

virtual void makVrv::DtTrackedCamera::setCameraFov	(	float	x,
		float	y
	)

virtual

set the camera FOV manually instead of pulling it from the camera

virtual void makVrv::DtTrackedCamera::setCameraEye	(	float	x,
		float	y,
		float	z,
		float	pitch
	)

virtual

set the camera eye location manually instead of pulling it from the camera

virtual void makVrv::DtTrackedCamera::resetCameraProjection ( )

pure virtual

reset the camera projection

Implemented in makVrv::DtOpenVRTrackedCamera.

virtual void makVrv::DtTrackedCamera::addEyeTexture	(	int	width,
		int	height,
		unsigned char *	buffer
	)

protectedvirtual

create an osg texture

virtual void makVrv::DtTrackedCamera::invertBuffer ( )

protectedvirtual

flip the image buffer upside down so it is appropriate for openGL use

virtual osg::Matrixd makVrv::DtTrackedCamera::createProjectionMatrix	(	float	zn,
		float	zf,
		const float *	fovx = `NULL`,
		const float *	fovy = `NULL`
	)

protectedpure virtual

create a projection matrix

Implemented in makVrv::DtOpenVRTrackedCamera.

Member Data Documentation

DtDe& makVrv::DtTrackedCamera::myDe

protected

bool makVrv::DtTrackedCamera::myIsStreaming

protected

UInt64 makVrv::DtTrackedCamera::myLastFrameSequence

protected

unsigned int makVrv::DtTrackedCamera::myFrameWidth

protected

unsigned int makVrv::DtTrackedCamera::myFrameHeight

protected

unsigned int makVrv::DtTrackedCamera::myFrameBufferSize

protected

unsigned char* makVrv::DtTrackedCamera::myFrameBuffer

protected

unsigned char* makVrv::DtTrackedCamera::myFrameFlipBuffer

protected

bool makVrv::DtTrackedCamera::myIsDualCamera

protected

int makVrv::DtTrackedCamera::myDualFormat

protected

std::vector<osg::ref_ptr<osg::Texture2D> > makVrv::DtTrackedCamera::myTextures

protected

std::vector<osg::ref_ptr<osg::Image> > makVrv::DtTrackedCamera::myImages

protected

osg::Matrixd makVrv::DtTrackedCamera::myProjection

protected

osg::Matrixd makVrv::DtTrackedCamera::myView

protected

std::vector<osg::Matrixd> makVrv::DtTrackedCamera::myHeadToCameraMatrix

protected

int makVrv::DtTrackedCamera::myFrameType

protected

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

/data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-1-branch/include/vrvVirtualReality/DtTrackedCamera.h

Public Types

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation