ForwardLight Class Reference

Store lights data for forward rendering in a GPU buffer. More...

#include <ForwardLight.hpp>

Classes
struct	GPULight
	Represent a light on the GPU for the forward renderer. More...

Public Member Functions
	ForwardLight (size_t count)
void	updateCameraInfos (const glm::mat4 &viewMatrix, const glm::mat4 &projMatrix)
void	draw (const SpotLight *light) override
void	draw (const PointLight *light) override
void	draw (const DirectionalLight *light) override
size_t	count () const
const std::vector< const Texture * > &	shadowMaps () const
UniformBuffer< GPULight > &	data ()
virtual void	draw (const DirectionalLight *light)=0
virtual void	draw (const PointLight *light)=0
virtual void	draw (const SpotLight *light)=0

Private Attributes
size_t	_currentId = 0
	Current insertion location.
size_t	_currentCount = 0
	Number of lights to store.
UniformBuffer< GPULight >	_lightsData
	GPU buffer.
glm::mat4	_view = glm::mat4(1.0f)
	Cached camera view matrix.
glm::mat4	_proj = glm::mat4(1.0f)
	Cached camera projection matrix.
glm::mat4	_invView = glm::mat4(1.0f)
	Cached inverse view matrix.
std::vector< const Texture * >	_shadowMaps
	Shadow maps list.

Static Private Attributes
static const size_t	_maxLightCount = 50
	Maximum allowed number of lights (see forward_lights.glsl).

Detailed Description

Store lights data for forward rendering in a GPU buffer.

Inherits LightRenderer.

Constructor & Destructor Documentation

ForwardLight()

ForwardLight::ForwardLight ( size_t  count )

explicit

Constructor.

Parameters

count

number of lights that will be submitted

Member Function Documentation

count()

size_t ForwardLight::count ( ) const

inline

Returns

the current number of lights

data()

UniformBuffer< GPULight > & ForwardLight::data ( )

inline

Returns

the GPU lights recorded buffer

draw() [1/3]

void ForwardLight::draw ( const DirectionalLight *  light )

overridevirtual

Record directional light information for rendering.

Parameters

light

the light to compute the contribution of

Implements LightRenderer.

draw() [2/3]

void ForwardLight::draw ( const PointLight *  light )

overridevirtual

Record point light information for rendering.

Parameters

light

the light to compute the contribution of

Implements LightRenderer.

draw() [3/3]

void ForwardLight::draw ( const SpotLight *  light )

overridevirtual

Record spot light information for rendering.

Parameters

light

the light to compute the contribution of

Implements LightRenderer.

shadowMaps()

const std::vector< const Texture * > & ForwardLight::shadowMaps ( ) const

inline

Returns

the shadow maps used by the lights

updateCameraInfos()

void ForwardLight::updateCameraInfos	(	const glm::mat4 &	viewMatrix,
		const glm::mat4 &	projMatrix
	)

Set the current user view and projection matrices.

Parameters

viewMatrix	the camera view matrix
projMatrix	the camera projection matrix

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

• src/apps/pbrdemo/ForwardLight.hpp
• src/apps/pbrdemo/ForwardLight.cpp