#include <Camera.h>

Inheritance diagram for Camera:

Public Member Functions
void	setOrthogonalProjection (f32 left, f32 right, f32 bottom, f32 top, f32 nnear, f32 nfar)
void	setPerspectiveProjection (f32 fovy, f32 aspect, f32 nnear, f32 nfar)
void	setProjection (mat4f &matrix)
vec3f	unproject (vec3f screen_coord)
mat4f	getProjectionMatrix () const
mat4f	getProjectionMatrixInverse ()
mat4f	getViewMatrix ()
mat4f	getViewMatrixInverse ()
mat4f	getViewProjectionMatrix ()
mat4f	getViewProjectionMatrixInverse ()
void	calculateFrustum (vec4f frustum[6])
void	toggleIndicator (bool visible)
bool	getIndicator ()
void	logInfo ()
Static Public Member Functions
static void	registerCommands ()
Protected Member Functions
	Camera (const char *nname)
Friends
class	SceneGraph
class	World

Detailed Description

Defines a Camera node.

Member Function Documentation

void Camera::setOrthogonalProjection	(	f32	left,
		f32	right,
		f32	bottom,
		f32	top,
		f32	nnear,
		f32	nfar
	)

Set orthogonal projection

This sets the camera matrix to:

[ 2 / (left - right) 0 0 tx ; 0 2 / (top - bottom) 0 ty ; 0 0 2 / (nfar - nnear) tz ; 0 0 0 1 ]

tx = (right + left) / (right - left) ty = (top + bottom) / (top - bottom) tz = (nfar + nnear) / (nfar - nnear)

void Camera::setPerspectiveProjection	(	f32	fovy,
		f32	aspect,
		f32	nnear,
		f32	nfar
	)

Set perspective projection

This sets the camera matrix to: [ f / aspect 0 0 0 ; 0 f 0 0 ; 0 0 g h ; 0 0 -1 0 ]

f = cot(fovy / 2) g = (nfar + nnear) / (nnear - nfar) h = (2 * nfar * nnear) / (nnear - nfar)

Parameters:

fovy	Field of view in radians
aspect	y / x

void Camera::setProjection ( mat4f & matrix )

Set projection matrix

This makes projection inverse computation much slower than for perspective or orthogonal matrices, since they are very easy to invert.

void Camera::toggleIndicator ( bool visible )

Enable/disable light indicator for debugging purposes

vec3f Camera::unproject ( vec3f screen_coord )

Unproject a screen coordinate

Parameters:

screen_coord Values should lie within [-1, 1]. Set Z to -1 for near plane and 1 for far plane.

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