Camera Class Reference

A Camera is used to view a scene from a particular vantage point. More...

#include <camera.h>

Public Member Functions
	Camera (Vector3Gf position=Vector3Gf(0.0f, 0.0f, 0.0f), Vector3Gf up=Vector3Gf(0.0f, 1.0f, 0.0f), GLfloat yaw=-90.0f, GLfloat pitch=0.0f)
Eigen::Matrix< GLfloat, 4, 4 >	GetViewMatrix ()
void	ProcessKeyboard (Camera_Movement direction, GLfloat deltaTime)
void	ProcessMouseMovement (GLfloat xoffset, GLfloat yoffset, GLboolean constrainPitch=true)
void	ProcessMouseScroll (GLfloat yoffset)

Public Attributes
Vector3Gf	m_position
Vector3Gf	m_front
Vector3Gf	m_up
Vector3Gf	m_right
Vector3Gf	m_world_up
GLfloat	m_yaw
GLfloat	m_pitch
GLfloat	m_movement_speed
GLfloat	m_mouse_sensitivity
GLfloat	m_zoom

Detailed Description

A Camera is used to view a scene from a particular vantage point.

A Camera requires a position,orientation, and direction to look in space. These things together define a camera centered coordinate system. This camera system is based on the camera system from here

Constructor & Destructor Documentation

Camera::Camera	(	Vector3Gf	position = Vector3Gf(0.0f, 0.0f, 0.0f),
		Vector3Gf	up = Vector3Gf(0.0f, 1.0f, 0.0f),
		GLfloat	yaw = -90.0f,
		GLfloat	pitch = 0.0f
	)

Constructs a Camera

Parameters

position	position of the camera in world coordinates
up	up direction in world cordinates for the camera. This is used to define up in the Camera coordinate system
yaw	yaw value for the camera
pitch	pitch value for the camera

Member Function Documentation

Eigen::Matrix< GLfloat, 4, 4 > Camera::GetViewMatrix

(

)

Returns

the view matrix calculated using Eular Angles and the LookAt Matrix

void Camera::ProcessKeyboard	(	Camera_Movement	direction,
		GLfloat	deltaTime
	)

Processes input received from any keyboard-like input system. Accepts input parameter in the form of camera defined ENUM

Parameters

direction	direction to move the camera in
deltaTime	time in seconds between rendering cycles. Helps smooth camera movement

void Camera::ProcessMouseMovement	(	GLfloat	xoffset,
		GLfloat	yoffset,
		GLboolean	constrainPitch = true
	)

Processes input received from a mouse input system. Expects the offset value in both the x and y direction.

Parameters

xoffset	change in x position of mouse
yoffset	change in y position of mouse
constrainPitch	controls if pitch is constrained within [-89,89] degrees

void Camera::ProcessMouseScroll

(

GLfloat

yoffset

)

Processes input received from a mouse scroll-wheel event. Only requires input on the vertical wheel-axis

Parameters

yoffset

change in scroll value

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

• include/camera.h
• camera.cpp