CSE::LightMgr Class Reference

#include <LightMgr.h>

Inheritance diagram for CSE::LightMgr:

Public Member Functions
	LightMgr ()
	~LightMgr () override
int	AttachLightToShader (const GLProgramHandle *handle) const
int	AttachLightMapToShader (const GLProgramHandle *handle, int textureLayout) const
void	Init () override
int	GetShadowCount () const
int	GetLightMapCount () const
void	RefreshShadowCount (int shadowCount=-1) const
Public Member Functions inherited from CSE::SContainerList< LightComponent * >
void	Register (LightComponent *object) override
void	Remove (LightComponent *object) override
LightComponent *	Get (int index) const override
std::list< LightComponent * >	GetAll () const override
int	GetID (LightComponent *object) const override
int	GetSize () const override
Public Member Functions inherited from CSE::SIContainer< std::list< LightComponent * >, LightComponent *, int >
Public Member Functions inherited from CSE::CoreBase
virtual void	Update (float elapsedTime)

Static Public Member Functions
static void	ExterminateGlobalSettings ()

Public Attributes
const int	SHADOW_WIDTH = 1024
	Width of the shadow map.
const int	SHADOW_HEIGHT = 1024
	Height of the shadow map.

Static Public Attributes
static constexpr float	SHADOW_DISTANCE = 100.f
	Distance of the shadow map.

Additional Inherited Members
Protected Attributes inherited from CSE::SContainerList< LightComponent * >
std::list< LightComponent * >	m_objects
int	m_size

Detailed Description

LightMgr class is a manager of Light components. This class also manages ShadowMap for giving shadow effects to objects in the scene.

Definition at line 17 of file LightMgr.h.

Constructor & Destructor Documentation

LightMgr()

LightMgr::LightMgr ( )

explicitdefault

Constructor of LightMgr.

~LightMgr()

LightMgr::~LightMgr ( )

override

Destructor of LightMgr.

Definition at line 10 of file LightMgr.cpp.

                    {
    SAFE_DELETE(m_environmentMgr);
}

Member Function Documentation

AttachLightMapToShader()

int LightMgr::AttachLightMapToShader	(	const GLProgramHandle *	handle,
		int	textureLayout ) const

Attach the light map to the shader.

Parameters

handle	Shader handle
textureLayout	Layout of the texture

Definition at line 47 of file LightMgr.cpp.

                                                                                           {
    int layout = m_environmentMgr->BindPBREnvironmentMap(handle, textureLayout);
    layout += m_environmentMgr->BindBRDFLUT(handle, textureLayout + layout);
    return layout;
}

Referenced by CSE::ForwardRenderGroup::RenderAll(), and CSE::DeferredRenderGroup::RenderGbuffer().

AttachLightToShader()

int LightMgr::AttachLightToShader

(

const GLProgramHandle *

handle

)

const

Attach the light components to the shader.

Parameters

handle

Shader handle

Definition at line 15 of file LightMgr.cpp.

                                                                     {
    if (handle == nullptr) return 0;
 
    int index = 0;
    int shadow_index = 0;
    for (const auto& light : m_objects) {
        if (light == nullptr || !light->GetIsEnable()) continue;
 
        const auto& lightObject = light->GetLight();
        const auto& position = (light->m_type == LightComponent::DIRECTIONAL)
                               ? lightObject->direction
                               : vec4(*lightObject->position, 1.0f);
 
        glUniform4f(handle->Uniforms.LightPosition + index,
                    position.x, position.y, position.z, (light->m_type == LightComponent::DIRECTIONAL) ? 0.0f : 1.0f);
        glUniform3f(handle->Uniforms.LightColor + index, lightObject->color.x, lightObject->color.y, lightObject->color.z);
        glUniform1i(handle->Uniforms.LightType + index, light->m_type);
        if (handle->Uniforms.LightRadius >= 0)
            glUniform1f(handle->Uniforms.LightRadius + index, lightObject->radius);
        // Shadow
        auto isShadow = light->IsShadow();
        glUniform1i(handle->Uniforms.LightShadowMode + index, isShadow ? 1 : 0);
        shadow_index += light->BindShadow(*handle, index, shadow_index);
        ++index;
    }
 
    if (index <= 0) return shadow_index;
 
    glUniform1i(handle->Uniforms.LightSize, (int)m_objects.size());
    return shadow_index;
}

Referenced by CSE::ForwardRenderGroup::RenderAll(), and CSE::DeferredRenderGroup::RenderGbuffer().

ExterminateGlobalSettings()

void LightMgr::ExterminateGlobalSettings ( )

static

Definition at line 73 of file LightMgr.cpp.

                                         {
    SEnvironmentMgr::ReleaseVAO();
}

GetLightMapCount()

int CSE::LightMgr::GetLightMapCount ( ) const

inline

Get the light map count.

Returns

Light map count

Definition at line 64 of file LightMgr.h.

                                     {
            return m_lightMapCount;
        }

GetShadowCount()

int CSE::LightMgr::GetShadowCount ( ) const

inline

Get the shadow count.

Returns

Shadow count

Definition at line 56 of file LightMgr.h.

                                   {
            return m_shadowCount;
        }

Init()

void LightMgr::Init ( )

overridevirtual

Initialize the LightMgr.

Implements CSE::CoreBase.

Definition at line 53 of file LightMgr.cpp.

                    {
    // Setting PBS Environment
    m_environmentMgr = new SEnvironmentMgr();
    m_environmentMgr->RenderPBREnvironment();
    m_environmentMgr->RenderBRDFLUT();
    m_environmentMgr->ReleaseRenderingResources();
}

RefreshShadowCount()

void LightMgr::RefreshShadowCount

(

int

shadowCount = -1

)

const

Refresh the shadow count.

Parameters

shadowCount

Shadow count to refresh. Default is -1.

Definition at line 61 of file LightMgr.cpp.

                                                       {
    if(shadowCount < 0) {
        int tempCount = 0;
        for (const auto& light : m_objects) {
            ++tempCount;
        }
        m_shadowCount = tempCount;
        return;
    }
    m_shadowCount = shadowCount;
}

Member Data Documentation

SHADOW_DISTANCE

float CSE::LightMgr::SHADOW_DISTANCE = 100.f

staticconstexpr

Distance of the shadow map.

Definition at line 21 of file LightMgr.h.

Referenced by CSE::DepthOnlyRenderGroup::RenderAll().

SHADOW_HEIGHT

const int CSE::LightMgr::SHADOW_HEIGHT = 1024

Height of the shadow map.

Definition at line 20 of file LightMgr.h.

SHADOW_WIDTH

const int CSE::LightMgr::SHADOW_WIDTH = 1024

Width of the shadow map.

Definition at line 19 of file LightMgr.h.

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

• Manager/LightMgr.h
• Manager/LightMgr.cpp