#include <Light.h>

Collaboration diagram for Light:

Public Types
enum	LightType { LT_POINT = 0, LT_CONIC = 1, LT_SPOTLIGHT = 2, LT_NONE }
Public Member Functions
	Light (void)
	~Light (void)
void	On ()
void	Off ()
bool	IsOn ()
void	ShadowOn ()
void	ShadowOff ()
bool	IsShadowOn ()
void	SetShadowElements (int elements)
bool	AreVerticesInShadow ()
bool	AreGridsInShadow ()
bool	AreHierarchyEdgeInShadow ()
bool	AreRelationEdgeInShadow ()
void	SetType (int type)
void	SetPosition (vec3 position)
void	SetSpotDirection (vec3 spotdirection)
void	SetRadius (float radius)
void	SetAttentuate (float attentuate)
float	GetType ()
vec3	GetPosition ()
vec3	GetSpotDirection ()
float	GetRadius ()
float	GetAttentuate ()

Detailed Description

This class creates a light. We support a standard point a light, a spot light, and a conic light

Author:: Michael Beham

Date:: 3.6.2011

Member Enumeration Documentation

enum Light::LightType

Defines the lighttype

Enumerator:

LT_POINT
LT_CONIC
LT_SPOTLIGHT
LT_NONE

Constructor & Destructor Documentation

Light::Light ( void )

standard constructor

Light::~Light ( void )

standard deconstructor

Member Function Documentation

bool Light::AreGridsInShadow ( )

Returns true, if the the grid should be a part of the shadow. return [bool] true... if the grid should be a part of the shadow

bool Light::AreHierarchyEdgeInShadow ( )

Returns true, if the hierarchy edge should be a part of the shadow. return [bool] true... if hiearchy edge should be a part of the shadow

bool Light::AreRelationEdgeInShadow ( )

Returns true, if the hierarchy edge should be a part of the shadow. return [bool] true... if hiearchy edge should be a part of the shadow

bool Light::AreVerticesInShadow ( )

Returns true, if the vertices should be a part of the shadow. return [bool] true... if vertices should be a part of the shadow

float Light::GetAttentuate ( )

Returns attentuate of the light

Returns:: [float] returns the attentuate

vec3 Light::GetPosition ( )

Returns the position of the light

Returns:: [vec3] position of the light

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float Light::GetRadius ( )

Returns the radius of the light

Returns:: [float] return the light

vec3 Light::GetSpotDirection ( )

Return the Spot direction of the light

Returns:: [vec3] spot direction

float Light::GetType ( )

Return the light type

Returns:: [float] return the light type

bool Light::IsOn ( )

Is the light on?

bool Light::IsShadowOn ( )

Returns the shadow state

Returns:: [bool] state of shadow

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void Light::Off ( )

Set the light off

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void Light::On ( )

Set the light on

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void Light::SetAttentuate ( float attentuate )

Set the light attentuate

Parameters:

attentuate [float] light attentuate

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void Light::SetPosition ( vec3 position )

This method sets the light position

Parameters:

position [vec3] position

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void Light::SetRadius ( float radius )

This method sets the light radius

Parameters:

radius [float] radius of the light

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void Light::SetShadowElements ( int elements )

This method sets the element, which should be a part of the shadow. The input follows the idea of a bit array.

1... nodes should be a part of shadow
2... hierarchy edges should be a part of shadow
4.... relation edges should be a part of shadow
8.... grid should be a part of shadow
Parameters:

elements [int] elements which should be draw.

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