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Lighting Class Reference

Public Methods
	Lighting ()
void	loadConfigData (void)
void	specifyLighting (void)
void	drawSpots (void)
void	drawSpot (GLfloat x, GLfloat y, GLfloat z)
float	norm (vec4f v)
void	vectorialProd (vec4f u, vec4f v, vec4f w)
void	computeNormals (SCENE *scene)
Data Fields
GLfloat	ambient [4]
	ambient light color
GLfloat	diffuse [4]
	diffuse light color
GLfloat	specular [4]
	specular light color
GLfloat	posSpot1 [4]
	position of first spot
GLfloat	posSpot2 [4]
	position of second spot
GLfloat	direction [3]
	direction of spot lights
int	enabled
	lighting is enabled ?
int	cutoff
	angle of the lights
int	exponent
	intensity of the lights
int	bLocalViewer
	local lighting effects
int	drawSmooth
	smooth shading ON/OFF

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Detailed Description

Lighting management Includes spot drawing procedure, some computation (vectorail product, normalisation - which should be replaced by algebra3) and lighting model parameters

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Constructor & Destructor Documentation

Lighting::Lighting (    )

Inits Lighting parameters from the file user.ini

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Member Function Documentation

void Lighting::computeNormals (  SCENE *    scene )

Computation of all the normals in the scene

void Lighting::drawSpot (  GLfloat    x, GLfloat    y, GLfloat    z )

Draws a spot at the point x,y,z using 2 spheres and a cone

void Lighting::drawSpots (  void    )

Draws the 2 spots

void Lighting::loadConfigData (  void    )

Loads light data from config file

float Lighting::norm (  vec4f    v )

Euclidian norm on the first 3 components Parameters: v  a float[3]

void Lighting::specifyLighting (  void    )

Replaces lights in case a rotation or a translation has occured because moving the scene often means to move lights too if you want to move the 2 lights with respect to the scene, you should consider modifying posSpot1 and posSpot2

void Lighting::vectorialProd (  vec4f    u, vec4f    v, vec4f    w )

Vectorial product w = u ^ v Parameters: u  the 1st vec4fe v  the 2nd vec4fe w  the result

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Field Documentation

GLfloat Lighting::ambient[4]

ambient light color

int Lighting::bLocalViewer

local lighting effects

int Lighting::cutoff

angle of the lights

GLfloat Lighting::diffuse[4]

diffuse light color

GLfloat Lighting::direction[3]

direction of spot lights

int Lighting::drawSmooth

smooth shading ON/OFF

int Lighting::enabled

lighting is enabled ?

int Lighting::exponent

intensity of the lights

GLfloat Lighting::posSpot1[4]

position of first spot

GLfloat Lighting::posSpot2[4]

position of second spot

GLfloat Lighting::specular[4]

specular light color

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

• lighting.h
• lighting.cpp

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