World::Camera Class Reference

#include <Camera.hh>

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List of all members.

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Detailed Description

Camera data, algorithms and functions used for creating camera rays.

Used for creating rays shooting from camera. Describes camera using Top, Direction, Position vectors and Field of View.

Definition at line 32 of file Camera.hh.

Public Member Functions
	Camera (const Math::Vector &Pos=Math::Vector(0.0, 1.0,-1.0), const Math::Vector &Dir=Math::Vector(0.0, 0.0, 1.0), Double FOV=DegreeToFOV(45.0), Bool AutoTop=true, const Math::Vector &Top=Math::Vector(0.0, 1.0, 0.0))
View	CreateView (Int XRes, Int YRes) const
Static Public Member Functions
static Double	DegreeToFOV (Double Degree)
Protected Attributes
Double	FOV
Math::Vector	Pos
Math::Vector	Dir
Math::Vector	Top
Friends
std::ostream &	operator<< (std::ostream &os, const Camera &C)
Classes
class	View
	Generates rays shooting from camera. More...

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Constructor & Destructor Documentation

World::Camera::Camera	(	const Math::Vector &	Pos = Math::Vector(0.0, 1.0, -1.0),
		const Math::Vector &	Dir = Math::Vector(0.0, 0.0, 1.0),
		Double	FOV = DegreeToFOV(45.0),
		Bool	AutoTop = true,
		const Math::Vector &	Top = Math::Vector(0.0, 1.0, 0.0)
	)

Initializes camera with default values

Function can calculate the Top vector so that camera "horizon line" is parallel to scene horizon.

Parameters:

	Pos	Camera position vector
	Dir	Direction of the camera view
	FOV	Camera "Field of View" in radians
	AutoTop	should top vector be automatically calculated?
	Top	if AutoTop = false, we use this vector

Definition at line 22 of file Camera.cc.

References Math::Abs(), Math::Tuple< T, DoCropping, Count >::Normalize(), and Math::Vector::Set().

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Member Function Documentation

static Double World::Camera::DegreeToFOV

(

Double

Degree

)

[inline, static]

Utility function to convert degrees into radians

Definition at line 87 of file Camera.hh.

Referenced by World::Scene::ParseCamera().

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Camera::View World::Camera::CreateView	(	Int	XRes,
		Int	YRes
	)			const

Performs few vector calculations and returns object which is then used to create rays

Definition at line 51 of file Camera.cc.

References Math::Vector::Cross(), Dir, FOV, Pos, and Top.

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Friends And Related Function Documentation

std::ostream& operator<<	(	std::ostream &	os,
		const Camera &	C
	)			[friend]

Pretty-printer

Definition at line 91 of file Camera.cc.

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Member Data Documentation

Double World::Camera::FOV [protected]

Camera Field of View in radians

Definition at line 35 of file Camera.hh.

Referenced by CreateView(), and World::operator<<().

Math::Vector World::Camera::Pos [protected]

Position at which camera is located

Definition at line 38 of file Camera.hh.

Referenced by CreateView(), and World::operator<<().

Math::Vector World::Camera::Dir [protected]

Direction the camera is pointing.

Definition at line 41 of file Camera.hh.

Referenced by CreateView(), and World::operator<<().

Math::Vector World::Camera::Top [protected]

Vector defining 'top' direction of camera; can be calculated automatically.

Definition at line 46 of file Camera.hh.

Referenced by CreateView(), and World::operator<<().

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

• World/Camera.hh
• World/Camera.cc