SpotLight Class Reference

A spot light. More...

#include <Light.h>

Inheritance diagram for SpotLight:

Public Member Functions
	SpotLight (glm::vec3 color, glm::vec3 position, glm::vec3 coneDirection, float spotCosCutoff=0.99f, float spotExponent=0.0f, float constantAttenuation=0.0f, float linearAttenuation=1.0f, float quadraticAttenuation=0.0f)
virtual void	Draw (GLuint) override final
	Sets up the light uniform location id's from the program. Each subclass must then send their corresponding params to the shader. More...
Public Member Functions inherited from Light
	Light ()
	~Light ()
virtual void	DrawShadow (GLuint) override
	Sends shadow information. Each subclass must implement this functionality! More...
virtual void	Update () override
	Updates the light. This currently does nothing! Draw() does update the light. More...
virtual void	Destroy () override
	Destroys the light. This currently only turns off the enabled flag! More...
virtual void	SetTexture (const std::string &, const TextureType &, const GLuint &) override
	Adds a texture to an object. More...
virtual const GLuint	GetTexture (const std::string &) const override
	Gets a texture. More...
bool	EnableShadows ()
	Enables shadow generation for this light. More...
bool	DisableShadows ()
	Disables shadow generation for this light. More...
void	SetAttenuation (float constant=0.0f, float linear=1.0f, float quadratic=0.0f)
	Sets the attenutation parameters. See this wiki article for more information about attenuation: https://developer.valvesoftware.com/wiki/Constant-Linear-Quadratic_Falloff. More...
Public Member Functions inherited from IGameObject
virtual	~IGameObject ()
	Destructor that deletes the unique shader program and shadow program belonging to the object. More...
virtual void	SetProgram (GLuint shaderName)
	Sets the main shader program corresponding to this object. More...
virtual void	SetShadowProgram (GLuint shaderName)
	Sets the shadow pass shader program corresponding to this object. More...
virtual GLuint	GetProgram ()
	Gets the object's main shader program. More...
virtual GLuint	GetShadowProgram ()
	Gets the object's shadow program. More...

Additional Inherited Members
Public Attributes inherited from Light
glm::vec3	ambient
	light's contribution to ambient light. More...
glm::vec3	color
	The color/intensity of the light. More...
glm::vec3	position
	location of light if isLocal is true. For directional light, it is the direction More...
glm::vec3	halfVector
	?? direction of headlights for directional light ?? More...
glm::vec3	coneDirection
	spotlight cone direction. More...
float	spotCosCutoff
	how wide the spotlight is [0-1]. More...
float	spotExponent
	control light fall-off in the spotlight. More...
float	constantAttenuation
	constant light fall-out More...
float	linearAttenuation
	linear light fall-off More...
float	quadraticAttenuation
	quadratic light fall-out More...
bool	isEnabled
	true if this object is enabled. More...
Protected Attributes inherited from Light
GLuint	texture
unsigned int	_id
bool	castsShadow
int	type
struct Light::LightUniformLocations	ids
Protected Attributes inherited from IGameObject
GLuint	program = 0
GLuint	shadowProgram = 0

Detailed Description

A spot light.

Constructor & Destructor Documentation

SpotLight::SpotLight	(	glm::vec3	color,
		glm::vec3	position,
		glm::vec3	coneDirection,
		float	spotCosCutoff = 0.99f,
		float	spotExponent = 0.0f,
		float	constantAttenuation = 0.0f,
		float	linearAttenuation = 1.0f,
		float	quadraticAttenuation = 0.0f
	)

Member Function Documentation

void SpotLight::Draw ( GLuint  program )

finaloverridevirtual

Sets up the light uniform location id's from the program. Each subclass must then send their corresponding params to the shader.

Parameters

program

The shader program.

Reimplemented from Light.