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Class Renderer

ClassList > Renderer

Forward declaration — see app/Window.h .More...

  • #include <Renderer.h>

Public Attributes

Type Name
std::vector< FrameBuffer > r_buffer_list
List of intermediate framebuffers (to be centralized)
RenderConfigs r_config
Render configuration (should use RenderContext )
GLuint r_frame_height = {}
Current frame height (to be moved to RenderContext )
GLuint r_frame_width = {}
Current frame width (to be moved to RenderContext )
bool r_is_preview = true
Whether in preview mode (editor-specific)
bool r_render_icons = true
Whether to render UI icons (editor-specific)
ShadowSystem r_shadow_system
Shadow system managing light GPU buffers and shadow map caching.

Public Static Attributes

Type Name
GLint max_resolution_h = 0
Maximum supported framebuffer height.
GLint max_resolution_w = 0
Maximum supported framebuffer width.

Public Functions

Type Name
void BindFrameBuffer (int slot)
Binds a framebuffer at the specified slot.
void ConstructSDF (const Context & ctx)
Constructs SDF (Signed Distance Field ) for soft shadows.
void EndFrameBuffer (int slot)
Unbinds a framebuffer at the specified slot.
RenderConfigs * GetConfig ()
Returns pointer to render configuration.
FrameBuffer * GetFrameBufferPtr ()
Returns pointer to the main render result framebuffer.
void InitFrameBuffer ()
Initializes all framebuffers for the rendering pipeline.
void NewFrame ()
Prepares for a new frame by clearing buffers.
void Render (const Context & ctx, bool rend=true, bool buff=true)
Executes the full rendering pipeline.
Renderer (EventPool & evt, Window & w)
Constructs and fully initializes the renderer.
Renderer (const Renderer &) = delete
void Reset ()
Resets renderer state to initial configuration.
void ScreenShot ()
Saves the current frame to a screenshot file.
Renderer & operator= (const Renderer &) = delete
~Renderer ()
Destroys the renderer and releases all GPU resources.

Detailed Description

OpenGL 4.6 renderer providing real-time rendering pipeline.

Renderer executes a multi-pass deferred rendering pipeline with PBR lighting, IBL, shadows, post-processing, and anti-aliasing. It manages GPU resources (framebuffers, shaders, buffers) and ensures deterministic cleanup.

Rendering Pipeline: * Geometry pass (G-Buffer: position, normal, albedo, metallic/roughness) * Lighting pass (PBR evaluation with multi-light support) * IBL pass (environment maps for diffuse/specular) * Post-processing (SSAO, SSR, shadows, FXAA) * Composite to final framebuffer

Note:

Ownership: Renderer owns all GPU resources and releases them in destructor.

Note:

Thread-safety: Not thread-safe. Must be used from OpenGL context thread.

Public Attributes Documentation

variable r_buffer_list

List of intermediate framebuffers (to be centralized) 

std::vector<FrameBuffer> Renderer::r_buffer_list;

variable r_config

Render configuration (should use RenderContext ) 

RenderConfigs Renderer::r_config;

variable r_frame_height

Current frame height (to be moved to RenderContext ) 

GLuint Renderer::r_frame_height;

variable r_frame_width

Current frame width (to be moved to RenderContext ) 

GLuint Renderer::r_frame_width;

variable r_is_preview

Whether in preview mode (editor-specific) 

bool Renderer::r_is_preview;

variable r_render_icons

Whether to render UI icons (editor-specific) 

bool Renderer::r_render_icons;

variable r_shadow_system

Shadow system managing light GPU buffers and shadow map caching. 

ShadowSystem Renderer::r_shadow_system;

Public Static Attributes Documentation

variable max_resolution_h

Maximum supported framebuffer height. 

GLint Renderer::max_resolution_h;

variable max_resolution_w

Maximum supported framebuffer width. 

GLint Renderer::max_resolution_w;

Public Functions Documentation

function BindFrameBuffer

Binds a framebuffer at the specified slot. 

void Renderer::BindFrameBuffer (
    int slot
)

Parameters:

  • slot Framebuffer slot index

function ConstructSDF

Constructs SDF (Signed Distance Field ) for soft shadows. 

void Renderer::ConstructSDF (
    const Context & ctx
)

Builds a volumetric SDF from scene geometry for use in SDF-based soft shadow algorithms.

Parameters:

  • ctx Context providing scene geometry

Note:

Performance: SDF construction is expensive. Cache when possible.

function EndFrameBuffer

Unbinds a framebuffer at the specified slot. 

void Renderer::EndFrameBuffer (
    int slot
)

Parameters:

  • slot Framebuffer slot index

function GetConfig

Returns pointer to render configuration. 

inline RenderConfigs * Renderer::GetConfig ()

Returns:

Non-owning pointer to RenderConfigs

function GetFrameBufferPtr

Returns pointer to the main render result framebuffer. 

inline FrameBuffer * Renderer::GetFrameBufferPtr ()

Returns:

Non-owning pointer to result FrameBuffer

function InitFrameBuffer

Initializes all framebuffers for the rendering pipeline. 

void Renderer::InitFrameBuffer ()

Note:

Called during Renderer initialization

function NewFrame

Prepares for a new frame by clearing buffers. 

void Renderer::NewFrame ()

Note:

Call before Render() each frame

function Render

Executes the full rendering pipeline. 

void Renderer::Render (
    const Context & ctx,
    bool rend=true,
    bool buff=true
)

Renders the scene from the active camera using multi-pass deferred rendering. Reads immutable scene data from Context and applies RenderConfigs settings.

Parameters:

  • ctx Context providing read-only scene access
  • rend Enable rasterization pass (default: true)
  • buff Enable buffer outputs (default: true)

Note:

This is the primary rendering entry point

Note:

Context must not be mutated during or after this call

function Renderer [1/2]

Constructs and fully initializes the renderer. 

Renderer::Renderer (
    EventPool & evt,
    Window & w
)

Takes Window& to enforce that steps 1–3 of the required initialization sequence (glfwInit, glfwCreateWindow, glfwMakeContextCurrent) have already completed. Sets glewExperimental, calls glewInit, configures OpenGL state, initializes framebuffers and shadow system, and subscribes to events.

Parameters:

  • evt EventPool for subscribing to viewport resize and other events
  • w Active Window — proves the OpenGL context is current

function Renderer [2/2]

Renderer::Renderer (
    const Renderer &
) = delete

function Reset

Resets renderer state to initial configuration. 

void Renderer::Reset ()

Note:

Useful for clearing accumulated state between scenes

function ScreenShot

Saves the current frame to a screenshot file. 

void Renderer::ScreenShot ()

Note:

File format and path are determined internally

function operator=

Renderer & Renderer::operator= (
    const Renderer &
) = delete

function ~Renderer

Destroys the renderer and releases all GPU resources. 

Renderer::~Renderer ()

Note:

All OpenGL objects are deleted deterministically

The documentation for this class was generated from the following file src/render/Renderer.h