#include <sceneview/camera_node.hpp>

Inheritance diagram for sv::CameraNode:

Public Types
enum	ProjectionType { kOrthographic, kPerspective, kManual }

Public Member Functions
SceneNodeType	NodeType () const override
	Retrieve the node type.

void	CopyFrom (const CameraNode &other)
	Copies parameters in from the specified camera. More...

void	SetViewportSize (int width, int height)
	Sets the size of the viewport. More...

QSize	GetViewportSize () const
	Retrieve the viewport size.

void	SetPerspective (double vfov_deg, double z_near, double z_far)
	Sets perspective projection mode. More...

void	SetOrthographic (double vfov_deg, double z_near, double z_far)
	Sets orthographic projection mode. More...

void	SetManual (const QMatrix4x4 &proj_mat)
	Sets a manual projection matrix.

ProjectionType	GetProjectionType () const
	Retrieve the current projection type.

void	LookAt (const QVector3D &eye, const QVector3D &look_at, const QVector3D &up)
	Rotate and translate the camera to look at the specified point.

double	GetVFovDeg () const
	Retrieve the vertical field of view, in degrees.

double	GetZNear () const
	Retrieve the near clipping plane.

double	GetZFar () const
	Retrieve the far clipping plane.

QVector3D	GetLookDir () const
	Retrieve the direction the camera is facing. More...

QVector3D	GetLookAt () const
	Retrieve the look at point.

QVector3D	GetUpDir () const
	Retrieve the camera's up vector.

QVector3D	Unproject (double x, double y)
	Computes a world-space direction corresponding to the specified screen-space pixel. More...

QMatrix4x4	GetProjectionMatrix ()
	Retrieve the camera projection matrix.

QMatrix4x4	GetViewMatrix ()
	Retrieve the camera view matrix. More...

QMatrix4x4	GetViewProjectionMatrix ()
	Gets the combined projection and view matrix. More...

const AxisAlignedBox &	WorldBoundingBox () override
	Retrieve the world-space bounding box of the node and all of its children (if applicable). More...

void	SetTranslation (const QVector3D &vec) override
	Sets the translation component of the node transform.

void	SetRotation (const QQuaternion &quat) override
	Sets the rotation component of the node to parent transform.

Public Member Functions inherited from sv::SceneNode
	SceneNode (const SceneNode &)=delete

SceneNode &	operator= (const SceneNode &)=delete

const QString	Name () const
	Retrieve the node name.

const QVector3D &	Translation () const
	Retrieve the translation component of the node to parent transform.

const QQuaternion &	Rotation () const
	Retrieve the rotation component of the node to parent transform.

const QVector3D &	Scale () const
	Retrieve the scale component of the node to parent transform.

const QMatrix4x4 &	WorldTransform ()
	Retrieve the transform from node coordinates to world coordinates. More...

bool	Visible () const
	Check if the node is visible or not.

void	SetTranslation (double x, double y, double z)
	Sets the translation component of the node transform.

virtual void	SetScale (const QVector3D &vec)
	Sets the scale component of the node to parent transform.

void	SetScale (double x, double y, double z)
	Sets the scale component of the node to parent transform.

virtual void	SetVisible (bool visible)
	Sets the node visibility. More...

GroupNode *	ParentNode ()
	Retrieve the parent of this node.

void	SetParentNode (GroupNode *parent)
	Sets the node's parent. More...

void	SetSelectionMask (int64_t mask)
	Sets the selection mask for this node. More...

int64_t	GetSelectionMask () const
	Retrieve the selection mask for this node.

Friends
class	Scene

Additional Inherited Members
Protected Member Functions inherited from sv::SceneNode
	SceneNode (const QString &name)
	Constructs a scene node with an identity transform.

virtual void	TransformChanged ()
	Internal method, used to enable lazy matrix computations. More...

virtual void	BoundingBoxChanged ()
	Internal method, used to enable lazy bounding box computations. More...

Detailed Description

Camera.

Computes transforms between:

world space (the 3D Cartesian coordinate frame the camera moves around in)
eye space (the 3D Cartesian coordinate frame with the camera at the origin)
projection space (3D OpenGL clip coordinates)
screen space (2D window corresponding to the Viewport widget)

Member Function Documentation

void sv::CameraNode::CopyFrom ( const CameraNode & other )

Copies parameters in from the specified camera.

Attributes copied in are:

extrinsics (eye, look, up vectors)
projection parameters (vfov, clipping planes, etc.)
viewport size

QVector3D sv::CameraNode::GetLookDir ( ) const

Retrieve the direction the camera is facing.

This is always of unit length.

QMatrix4x4 sv::CameraNode::GetViewMatrix ( )

Retrieve the camera view matrix.

The view matrix transforms from world Cartesian coordinates to camera-centric Cartesian coordinates.

QMatrix4x4 sv::CameraNode::GetViewProjectionMatrix ( )

Gets the combined projection and view matrix.

Equivalent to:

GetProjectionMatrix() * GetViewMatrix();

void sv::CameraNode::SetOrthographic	(	double	vfov_deg,
		double	z_near,
		double	z_far
	)

Sets orthographic projection mode.

Parameters

vfov_deg	vertical field of view, in degrees. For orthographic projection, this is calculated at the look_at point.
z_near	near clipping plane
z_var	far clipping plane

void sv::CameraNode::SetPerspective	(	double	vfov_deg,
		double	z_near,
		double	z_far
	)

Sets perspective projection mode.

Parameters

vfov_deg	vertical field of view, in degrees.
z_near	near clipping plane
z_var	far clipping plane

void sv::CameraNode::SetViewportSize	(	int	width,
		int	height
	)

Sets the size of the viewport.

You generally don't need to call this method. When a camera is attached to the viewport, the Viewport class automatically calls this method.

QVector3D sv::CameraNode::Unproject	(	double	x,
		double	y
	)

Computes a world-space direction corresponding to the specified screen-space pixel.

The resulting vector is guaranteed to be unit length.

const AxisAlignedBox& sv::CameraNode::WorldBoundingBox ( )

overridevirtual

Retrieve the world-space bounding box of the node and all of its children (if applicable).

Used internally in view frustum culling and selection queries.

Implements sv::SceneNode.

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

camera_node.hpp

Public Types

Public Member Functions

Friends

Additional Inherited Members

Detailed Description

Member Function Documentation