nngn::GLPost Class Reference

Post-processing operations. More...

#include <post.h>

Collaboration diagram for nngn::GLPost:

Public Member Functions
bool	init ()
	Single-step, swap-chain-independent initialization.
bool	destroy ()
	Releases all resources.
void	resize (uvec2 size)
	Signals that the frame buffer has been resized.
bool	set_automatic_exposure (bool b)
void	set_exposure (float e)
void	set_bloom_downscale (std::size_t d)
void	set_bloom_threshold (float t)
void	set_bloom_blur_size (float n)
void	set_bloom_blur_passes (std::size_t n)
void	set_bloom_amount (float a)
void	set_blur_downscale (std::size_t d)
void	set_blur_size (float n)
void	set_blur_passes (std::size_t n)
void	set_HDR_mix (float m)
bool	update ()
	Updates resources as necessary.
bool	bind_frame_buffer ()
	Binds the appropriate frame buffer according to the configuration.
bool	render ()
	Renders all enabled steps.

Private Types
enum	Flag : u8 { AUTOMATIC_EXPOSURE = 1u << 0 , SIZE_UPDATED = 1u << 1 , BLOOM_SCALE_UPDATED = 1u << 2 , BLUR_SCALE_UPDATED = 1u << 3 }

Private Member Functions
bool	enabled () const
bool	HDR_enabled () const
bool	bloom_enabled () const
bool	blur_enabled () const
bool	resize_frame_buffers ()
bool	calc_avg_luminance ()
bool	bloom () const
bool	blur () const
bool	HDR () const

Private Attributes
Flags< Flag >	flags = {}
float	exposure = Graphics::DEFAULT_EXPOSURE
float	bloom_scale
float	bloom_threshold = Graphics::DEFAULT_BLOOM_THRESHOLD
float	bloom_blur_size = Graphics::DEFAULT_BLOOM_BLUR_SIZE
std::size_t	bloom_blur_passes = Graphics::DEFAULT_BLOOM_BLUR_PASSES
float	bloom_amount = 0
float	blur_scale
float	blur_size = 0
std::size_t	blur_passes = 0
float	HDR_mix = 0
GLProgram	luminance_prog = {}
GLProgram	bloom_prog = {}
GLProgram	blur_prog = {}
GLProgram	hdr_prog = {}
GLTexArray	color_tex = {}
GLTexArray	depth_tex = {}
GLTexArray	luminance_tex0 = {}
GLTexArray	luminance_tex1 = {}
GLTexArray	luminance_last_tex = {}
GLTexArray	luminance_res_tex = {}
GLTexArray	blur_tex0 = {}
GLTexArray	blur_tex1 = {}
GLTexArray	bloom_blur_tex0 = {}
GLTexArray	bloom_blur_tex1 = {}
GLFrameBuffer	color_fb = {}
GLFrameBuffer	luminance_fb0 = {}
GLFrameBuffer	luminance_fb1 = {}
GLFrameBuffer	luminance_res_fb = {}
GLFrameBuffer	blur_fb0 = {}
GLFrameBuffer	blur_fb1 = {}
GLFrameBuffer	bloom_blur_fb0 = {}
GLFrameBuffer	bloom_blur_fb1 = {}
int	bloom_threshold_loc = -1
int	bloom_amount_loc = -1
int	blur_dir_loc = -1
int	exposure_scale_loc = -1
int	HDR_mix_loc = -1
VAO	luminance_vao = {}
VAO	bloom_filter_vao = {}
VAO	blur_vao = {}
VAO	hdr_vao = {}
GLBuffer	vbo = {}
GLBuffer	ebo = {}
uvec2	size = {}
uvec2	half_size = {}
uvec2	rounded_half_size = {}

Detailed Description

Post-processing operations.

Member Enumeration Documentation

Flag

enum nngn::GLPost::Flag : u8

private

Enumerator
AUTOMATIC_EXPOSURE
SIZE_UPDATED
BLOOM_SCALE_UPDATED
BLUR_SCALE_UPDATED

Member Function Documentation

bind_frame_buffer()

bool nngn::GLPost::bind_frame_buffer ( )

inline

Binds the appropriate frame buffer according to the configuration.

May bind either the internal color/depth textures or the default frame buffer.

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bloom()

bool nngn::GLPost::bloom ( ) const

private

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bloom_enabled()

bool nngn::GLPost::bloom_enabled ( ) const

inlineprivate

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blur()

bool nngn::GLPost::blur ( ) const

private

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blur_enabled()

bool nngn::GLPost::blur_enabled ( ) const

inlineprivate

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calc_avg_luminance()

bool nngn::GLPost::calc_avg_luminance ( )

private

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destroy()

bool nngn::GLPost::destroy

(

)

Releases all resources.

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enabled()

bool nngn::GLPost::enabled ( ) const

inlineprivate

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HDR()

bool nngn::GLPost::HDR ( ) const

private

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HDR_enabled()

bool nngn::GLPost::HDR_enabled ( ) const

inlineprivate

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init()

bool nngn::GLPost::init

(

)

Single-step, swap-chain-independent initialization.

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render()

bool nngn::GLPost::render

(

)

Renders all enabled steps.

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resize()

void nngn::GLPost::resize ( uvec2 size )

inline

Signals that the frame buffer has been resized.

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resize_frame_buffers()

bool nngn::GLPost::resize_frame_buffers ( )

private

set_automatic_exposure()

bool nngn::GLPost::set_automatic_exposure

(

bool

b

)

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set_bloom_amount()

void nngn::GLPost::set_bloom_amount ( float a )

inline

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set_bloom_blur_passes()

void nngn::GLPost::set_bloom_blur_passes ( std::size_t n )

inline

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set_bloom_blur_size()

void nngn::GLPost::set_bloom_blur_size ( float n )

inline

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set_bloom_downscale()

void nngn::GLPost::set_bloom_downscale ( std::size_t d )

inline

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set_bloom_threshold()

void nngn::GLPost::set_bloom_threshold ( float t )

inline

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set_blur_downscale()

void nngn::GLPost::set_blur_downscale ( std::size_t d )

inline

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set_blur_passes()

void nngn::GLPost::set_blur_passes ( std::size_t n )

inline

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set_blur_size()

void nngn::GLPost::set_blur_size ( float n )

inline

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set_exposure()

void nngn::GLPost::set_exposure ( float e )

inline

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set_HDR_mix()

void nngn::GLPost::set_HDR_mix ( float m )

inline

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update()

bool nngn::GLPost::update

(

)

Updates resources as necessary.

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Member Data Documentation

bloom_amount

float nngn::GLPost::bloom_amount = 0

private

bloom_amount_loc

int nngn::GLPost::bloom_amount_loc = -1

private

bloom_blur_fb0

GLFrameBuffer nngn::GLPost::bloom_blur_fb0 = {}

private

bloom_blur_fb1

GLFrameBuffer nngn::GLPost::bloom_blur_fb1 = {}

private

bloom_blur_passes

std::size_t nngn::GLPost::bloom_blur_passes = Graphics::DEFAULT_BLOOM_BLUR_PASSES

private

bloom_blur_size

float nngn::GLPost::bloom_blur_size = Graphics::DEFAULT_BLOOM_BLUR_SIZE

private

bloom_blur_tex0

GLTexArray nngn::GLPost::bloom_blur_tex0 = {}

private

bloom_blur_tex1

GLTexArray nngn::GLPost::bloom_blur_tex1 = {}

private

bloom_filter_vao

VAO nngn::GLPost::bloom_filter_vao = {}

private

bloom_prog

GLProgram nngn::GLPost::bloom_prog = {}

private

bloom_scale

float nngn::GLPost::bloom_scale

private

Initial value:

=
        1.0f / static_cast<float>(Graphics::DEFAULT_BLOOM_DOWNSCALE)

bloom_threshold

float nngn::GLPost::bloom_threshold = Graphics::DEFAULT_BLOOM_THRESHOLD

private

bloom_threshold_loc

int nngn::GLPost::bloom_threshold_loc = -1

private

blur_dir_loc

int nngn::GLPost::blur_dir_loc = -1

private

blur_fb0

GLFrameBuffer nngn::GLPost::blur_fb0 = {}

private

blur_fb1

GLFrameBuffer nngn::GLPost::blur_fb1 = {}

private

blur_passes

std::size_t nngn::GLPost::blur_passes = 0

private

blur_prog

GLProgram nngn::GLPost::blur_prog = {}

private

blur_scale

float nngn::GLPost::blur_scale

private

Initial value:

=
        1.0f / static_cast<float>(Graphics::DEFAULT_BLUR_DOWNSCALE)

blur_size

float nngn::GLPost::blur_size = 0

private

blur_tex0

GLTexArray nngn::GLPost::blur_tex0 = {}

private

blur_tex1

GLTexArray nngn::GLPost::blur_tex1 = {}

private

blur_vao

VAO nngn::GLPost::blur_vao = {}

private

color_fb

GLFrameBuffer nngn::GLPost::color_fb = {}

private

color_tex

GLTexArray nngn::GLPost::color_tex = {}

private

depth_tex

GLTexArray nngn::GLPost::depth_tex = {}

private

ebo

GLBuffer nngn::GLPost::ebo = {}

private

exposure

float nngn::GLPost::exposure = Graphics::DEFAULT_EXPOSURE

private

exposure_scale_loc

int nngn::GLPost::exposure_scale_loc = -1

private

flags

Flags<Flag> nngn::GLPost::flags = {}

private

half_size

uvec2 nngn::GLPost::half_size = {}

private

HDR_mix

float nngn::GLPost::HDR_mix = 0

private

HDR_mix_loc

int nngn::GLPost::HDR_mix_loc = -1

private

hdr_prog

GLProgram nngn::GLPost::hdr_prog = {}

private

hdr_vao

VAO nngn::GLPost::hdr_vao = {}

private

luminance_fb0

GLFrameBuffer nngn::GLPost::luminance_fb0 = {}

private

luminance_fb1

GLFrameBuffer nngn::GLPost::luminance_fb1 = {}

private

luminance_last_tex

GLTexArray nngn::GLPost::luminance_last_tex = {}

private

luminance_prog

GLProgram nngn::GLPost::luminance_prog = {}

private

luminance_res_fb

GLFrameBuffer nngn::GLPost::luminance_res_fb = {}

private

luminance_res_tex

GLTexArray nngn::GLPost::luminance_res_tex = {}

private

luminance_tex0

GLTexArray nngn::GLPost::luminance_tex0 = {}

private

luminance_tex1

GLTexArray nngn::GLPost::luminance_tex1 = {}

private

luminance_vao

VAO nngn::GLPost::luminance_vao = {}

private

rounded_half_size

uvec2 nngn::GLPost::rounded_half_size = {}

private

size

uvec2 nngn::GLPost::size = {}

private

vbo

GLBuffer nngn::GLPost::vbo = {}

private

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

• src/graphics/opengl/post.h
• src/graphics/opengl/post.cpp