Base class for cameras. Override this class to set your own projection matrix. More...

#include <camera.h>

Inheritance diagram for inviwo::Camera:

Public Member Functions
	Camera (vec3 lookFrom, vec3 lookTo, vec3 lookUp, float nearPlane, float farPlane, float aspectRatio)
	Create a camera.

	Camera (const Camera &other)=default

Camera &	operator= (const Camera &other)=default

	Camera (Camera &&other) noexcept=default

Camera &	operator= (Camera &&other) noexcept=default

virtual Camera *	clone () const =0

virtual std::string	getClassIdentifier () const =0

virtual void	updateFrom (const Camera &source)

virtual void	configureProperties (CameraProperty &cameraProperty, bool attach)

const vec3 &	getLookFrom () const

virtual void	setLookFrom (vec3 val)

const vec3 &	getLookTo () const

virtual void	setLookTo (vec3 val)

const vec3 &	getLookUp () const

virtual void	setLookUp (vec3 val)

virtual float	getAspectRatio () const

virtual void	setAspectRatio (float val)

virtual void	zoom (float factor, std::optional< mat4 > boundingBox)=0

vec3	getDirection () const
	Get unnormalized direction of camera: lookTo - lookFrom.

virtual void	setNearPlaneDist (float distance)
	Set distance to the near plane from lookFrom.

float	getNearPlaneDist () const

virtual void	setFarPlaneDist (float distance)
	Set distance to the far plane from lookFrom.

float	getFarPlaneDist () const

const mat4 &	getViewMatrix () const

const mat4 &	getProjectionMatrix () const

const mat4 &	getInverseViewMatrix () const

const mat4 &	getInverseProjectionMatrix () const

vec3	getWorldPosFromNormalizedDeviceCoords (const vec3 &ndcCoords) const
	Convert from normalized device coordinates (xyz in [-1 1]) to world coordinates.

virtual vec4	getClipPosFromNormalizedDeviceCoords (const vec3 &ndcCoords) const
	Convert from normalized device coordinates (xyz in [-1 1]) to clip coordinates, where z value of -1 correspond to the near plane and 1 to the far plane. Coordinates outside of the [-1 1]^3 range will be clipped.

vec3	getNormalizedDeviceFromNormalizedScreenAtFocusPointDepth (const vec2 &normalizedScreenCoord) const

virtual void	serialize (Serializer &s) const override

virtual void	deserialize (Deserializer &d) override

Public Member Functions inherited from inviwo::Serializable

Protected Member Functions
virtual bool	equal (const Camera &other) const =0

bool	equalTo (const Camera &other) const

virtual mat4	calculateProjectionMatrix () const =0
	Calculate and return the projection matrix for the camera.

virtual mat4	calculateViewMatrix () const

void	invalidateViewMatrix ()

void	invalidateProjectionMatrix ()

Protected Attributes
vec3	lookFrom_

vec3	lookTo_

vec3	lookUp_

float	nearPlaneDist_
	Distance to the near plane from lookFrom.

float	farPlaneDist_
	Distance to the far plane from lookFrom.

float	aspectRatio_

bool	invalidViewMatrix_

bool	invalidProjectionMatrix_

mat4	viewMatrix_

mat4	projectionMatrix_

mat4	inverseViewMatrix_

mat4	inverseProjectionMatrix_

CameraProperty *	camprop_ = nullptr

Friends
bool	operator== (const Camera &lhs, const Camera &rhs)

bool	operator!= (const Camera &lhs, const Camera &rhs)

Detailed Description

Base class for cameras. Override this class to set your own projection matrix.

See also: PerspectiveCamera; OrthographicCamera

Constructor & Destructor Documentation

◆ Camera()

inviwo::Camera::Camera	(	vec3	lookFrom,
		vec3	lookTo,
		vec3	lookUp,
		float	nearPlane,
		float	farPlane,
		float	aspectRatio )

Create a camera.

Default parameters creates a right handed coordinate system with camera looking towards the negative z-axis. with X = (1, 0, 0), Y = (0, 1, 0), Z = (0, 0, -1)

Parameters

lookFrom	Camera position (eye)
lookTo	Camera focus point (center)
lookUp	Camera up direction
nearPlane	Camera near clip-plane
farPlane	Camera far clip-plane
aspectRatio	Camera aspect ratio

Member Function Documentation

◆ calculateProjectionMatrix()

virtual mat4 inviwo::Camera::calculateProjectionMatrix ( ) const

protectedpure virtual

Calculate and return the projection matrix for the camera.

Implement this function to provide your own projection computation functionality. For example orthogonal or perspective projection. This function will be called when the projection matrix is invalid.

See also: PerspectiveCamera; OrthographicCamera

Implemented in inviwo::OrthographicCamera, inviwo::PerspectiveCamera, inviwo::SGCTCamera, and inviwo::SkewedPerspectiveCamera.

◆ deserialize()

virtual void inviwo::Camera::deserialize ( Deserializer & d )

overridevirtual

Implements inviwo::Serializable.

◆ getClipPosFromNormalizedDeviceCoords()

virtual vec4 inviwo::Camera::getClipPosFromNormalizedDeviceCoords ( const vec3 & ndcCoords ) const

virtual

Convert from normalized device coordinates (xyz in [-1 1]) to clip coordinates, where z value of -1 correspond to the near plane and 1 to the far plane. Coordinates outside of the [-1 1]^3 range will be clipped.

Parameters

ndcCoords xyz clip-coordinates in [-1 1]^3, and the clip w-coordinate used for perspective division.

Returns: Clip space position

Reimplemented in inviwo::OrthographicCamera.

◆ getWorldPosFromNormalizedDeviceCoords()

vec3 inviwo::Camera::getWorldPosFromNormalizedDeviceCoords ( const vec3 & ndcCoords ) const

Convert from normalized device coordinates (xyz in [-1 1]) to world coordinates.

Parameters

ndcCoords Coordinates in [-1 1]

Returns: World space position

◆ serialize()

virtual void inviwo::Camera::serialize ( Serializer & s ) const

overridevirtual

Implements inviwo::Serializable.

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

camera/camera.h

Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ Camera()

Member Function Documentation

◆ calculateProjectionMatrix()

◆ deserialize()

◆ getClipPosFromNormalizedDeviceCoords()

◆ getWorldPosFromNormalizedDeviceCoords()

◆ serialize()