sgltk::P_Camera Class Reference

Manages perspective cameras. More...

#include <camera.h>

Inheritance diagram for sgltk::P_Camera:

Collaboration diagram for sgltk::P_Camera:

Public Member Functions
	P_Camera (const sgltk::P_Camera &camera)
	P_Camera (glm::vec3 position, glm::vec3 direction, glm::vec3 up)
	P_Camera (glm::vec3 position, glm::vec3 direction, glm::vec3 up, float fovy, float width, float height, float near_plane, float far_plane)
void	update_projection_matrix ()
	Recalculates the projection matrix.
std::vector< glm::vec3 >	calculate_frustum_points ()
	Calculates the corner points of the camera's frustum.
std::vector< float >	calculate_frustum_distance (glm::vec3 point)
	Calculates the distances of a point to all planes of the camera's frustum. Positive values indicate that the point and the frustum are on the opposite sides of the plane.
Public Member Functions inherited from sgltk::Camera
	Camera (glm::vec3 position, glm::vec3 direction, glm::vec3 up)
void	update_view_matrix ()
	Recalculates the view matrix.
void	move_up (float delta)
	Move the camera along the up vector.
void	move_right (float delta)
	Move the camera along the right vector.
void	move_forward (float delta)
	Move the camera along the forward vector.
void	move_by (float x, float y, float z)
	Move the camera by the vector (x, y, z)
void	move_by (glm::vec3 vector)
	Move the camera by the vector.
void	yaw (float angle)
	Rotate the camera using the up vector as the axis.
void	roll (float angle)
	Rotate the camera using the forward vector as the axis.
void	pitch (float angle)
	Rotate the camera using the right vector as the axis.

Additional Inherited Members
Public Attributes inherited from sgltk::Camera
glm::mat4	view_matrix
	The view matrix.
glm::mat4	projection_matrix
	The perspective projection matrix.
float	width
	Viewport width.
float	height
	Viewport height.
float	fovy
	The vertical field of view angle of the camera.
float	far_plane
	The far plane of the camera frustum.
float	near_plane
	The near plane of the camera frustum.
glm::vec3	position
	The camera position.
glm::vec3	direction
	The direction the camera is pointing.
glm::vec3	up
	The up vector of the camera.
glm::vec3	right
	The right vector of the camera.

Detailed Description

Manages perspective cameras.

class P_Camera

Definition at line 127 of file camera.h.

Constructor & Destructor Documentation

P_Camera() [1/4]

P_Camera::P_Camera

(

)

Definition at line 5 of file camera_p.cpp.

P_Camera() [2/4]

P_Camera::P_Camera

(

const sgltk::P_Camera &

camera

)

Parameters

camera

The camera to copy

Definition at line 12 of file camera_p.cpp.

P_Camera() [3/4]

P_Camera::P_Camera	(	glm::vec3	position,
		glm::vec3	direction,
		glm::vec3	up )

Parameters

position	The camera position
direction	The view direction
up	The up vector

Definition at line 23 of file camera_p.cpp.

P_Camera() [4/4]

P_Camera::P_Camera	(	glm::vec3	position,
		glm::vec3	direction,
		glm::vec3	up,
		float	fovy,
		float	width,
		float	height,
		float	near_plane,
		float	far_plane )

Parameters

position	The camera position
direction	The view direction
up	The up vector
fovy	The field of view in radians
width	The width of the viewport
height	The height of the viewport
near_plane	The near plane
far_plane	The far plane

Definition at line 31 of file camera_p.cpp.

~P_Camera()

P_Camera::~P_Camera

(

)

Definition at line 49 of file camera_p.cpp.

Member Function Documentation

calculate_frustum_distance()

std::vector< float > P_Camera::calculate_frustum_distance

(

glm::vec3

point

)

Calculates the distances of a point to all planes of the camera's frustum. Positive values indicate that the point and the frustum are on the opposite sides of the plane.

Parameters

point

The point to calculate the distances to.

Returns

Returns a vector containing the distances of the point to the planes of the frustum. 0 - far 1 - near 2 - left 3 - right 4 - top 5 - bottom

Definition at line 83 of file camera_p.cpp.

calculate_frustum_points()

std::vector< glm::vec3 > P_Camera::calculate_frustum_points

(

)

Calculates the corner points of the camera's frustum.

Returns

Returns a vector containing the world coordinates of the frustum points. 0 - near-bottom-left 1 - near-bottom-right 2 - near-top-right 3 - near-top-left 4 - far-bottom-left 5 - far-bottom-right 6 - far-top-right 7 - far-top-left

Definition at line 59 of file camera_p.cpp.

update_projection_matrix()

void P_Camera::update_projection_matrix ( )

virtual

Recalculates the projection matrix.

Implements sgltk::Camera.

Definition at line 52 of file camera_p.cpp.

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

• /home/fstdb/proj/sgltk_example/sgltk/src/camera.h
• /home/fstdb/proj/sgltk_example/sgltk/src/camera_p.cpp