The MPostProcessor class contains functionality used to render the current scene to a texture to allow applying GLSL post effects when rendering the final image to the screen. More...

#include <PostProcessor.h>

Classes
struct	float_uniform_t

struct	int_uniform_t

struct	uniform_t

Public Member Functions
	PostProcessor ()

bool	draw (OCamera *camera)
	Renders the current scene to a texture and then to the screen after applying the post effects shader. More...

bool	loadShader (const char vertShad, const char fragShad)
	Loads, compiles and links a shader pair to the GPU. More...

bool	loadShaderFile (const char vertShad, const char fragShad)
	Loads, compiles and links a shader pair to the GPU. More...

void	updateResolution ()
	Updates the color and depth texture to fit the current screen/window resolution. Needs to be called after MPostProcessor::eraseTextures()! More...

void	eraseTextures ()
	Deletes the color and depth texture. That allows them to be recreated for example when the resolution changes. More...

void	addFloatUniform (const char *name)
	Adds a uniform of the type float to the uniform list. More...

void	setFloatUniformValue (const char *name, float value)
	Sets the value of a uniform with the type float. More...

float	getFloatUniformValue (int idx)
	Gets the float value of the uniform at the index. More...

void	addIntUniform (const char *name)
	Adds a uniform of the type int to the uniform list. More...

void	setIntUniformValue (const char *name, float value)
	Sets the value of a uniform with the type int. More...

int	getIntUniformValue (int idx)
	Gets the int value of the uniform at the index. More...

int	getNumUniforms ()
	Returns the number of currently registered uniform variables. Increases whenever one of the "add*Uniform" gets called. More...

const char *	getUniformName (int idx)
	Returns the name of the specified uniform variable. More...

M_VARIABLE_TYPE	getUniformType (int idx)
	Returns the type of the specified uniform variable. See also: M_VARIABLE_TYPE. More...

void	clear ()
	Deletes all uniform variables currently registered. More...

const char *	getVertexShader ()

const char *	getFragmentShader ()

void	setShaderPath (const char vertPath, const char fragPath)
	Sets the path to the vertex shader and the fragment shader without loading them. More...

int	getFX ()

float	getResolutionMultiplier ()

void	setResolutionMultiplier (float res)
	Sets the current resolution multiplier. More...

Protected Member Functions
void	set2D (unsigned int w, unsigned int h)

void	drawQuad (Vector2 scale)

void	sendUniforms ()

Protected Attributes
unsigned int	m_BufferID

unsigned int	m_ColourTexID

unsigned int	m_DepthTexID

unsigned int	m_fx

unsigned int	m_fragShad

unsigned int	m_vertShad

int	m_Resolution

float	m_ResolutionMultiplier

String	m_vertShadPath

String	m_fragShadPath

vector< uintptr_t >	m_UniformList

Vector2	m_texCoords [4]

Vector2	m_vertices [4]

Detailed Description

The MPostProcessor class contains functionality used to render the current scene to a texture to allow applying GLSL post effects when rendering the final image to the screen.

Constructor & Destructor Documentation

Neo::PostProcessor::PostProcessor ( )

Member Function Documentation

void Neo::PostProcessor::addFloatUniform ( const char * name )

Adds a uniform of the type float to the uniform list.

Parameters

name	The name of the new uniform variable.

void Neo::PostProcessor::addIntUniform ( const char * name )

Adds a uniform of the type int to the uniform list.

Parameters

name	The name of the new uniform variable.

void Neo::PostProcessor::clear ( )

Deletes all uniform variables currently registered.

bool Neo::PostProcessor::draw ( OCamera * camera )

Renders the current scene to a texture and then to the screen after applying the post effects shader.

Parameters

camera The camera to use.

Returns: Returns true if it rendered properly, false if it didn't.

void Neo::PostProcessor::drawQuad ( Vector2 scale )

protected

void Neo::PostProcessor::eraseTextures ( )

Deletes the color and depth texture. That allows them to be recreated for example when the resolution changes.

float Neo::PostProcessor::getFloatUniformValue ( int idx )

Gets the float value of the uniform at the index.

Parameters

idx	The index of the uniform.

Returns: The float value

const char* Neo::PostProcessor::getFragmentShader ( )

inline

Returns: The fragment shaders file path

int Neo::PostProcessor::getFX ( )

inline

Returns: The internal FX ID.

int Neo::PostProcessor::getIntUniformValue ( int idx )

Gets the int value of the uniform at the index.

Parameters

idx	The index of the uniform.

Returns: The int value

int Neo::PostProcessor::getNumUniforms ( )

inline

Returns the number of currently registered uniform variables. Increases whenever one of the "add*Uniform" gets called.

Returns: The number of all registered uniforms.

float Neo::PostProcessor::getResolutionMultiplier ( )

inline

Returns: The resolution multiplier.

const char* Neo::PostProcessor::getUniformName ( int idx )

Returns the name of the specified uniform variable.

Parameters

idx	The index of the uniform variable.

Returns: The name of the uniform variable.

M_VARIABLE_TYPE Neo::PostProcessor::getUniformType ( int idx )

Returns the type of the specified uniform variable.
See also: M_VARIABLE_TYPE.

Parameters

idx	The index of the uniform variable.

Returns: The type of the uniform variable.

const char* Neo::PostProcessor::getVertexShader ( )

inline

Returns: The vertex shaders file path

bool Neo::PostProcessor::loadShader	(	const char *	vertShad,
		const char *	fragShad
	)

Loads, compiles and links a shader pair to the GPU.

Parameters

vertShad	The sources of the vertex shader.
fragShad	The sources of the fragment shader.

Returns: Returns true if both shader loaded properly, false if they didn't.

bool Neo::PostProcessor::loadShaderFile	(	const char *	vertShad,
		const char *	fragShad
	)

Loads, compiles and links a shader pair to the GPU.

Parameters

vertShad	The path to the file containing the vertex shader sources.
fragShad	The path to the file containing the fragment shader sources.

Returns: Returns true if both shader loaded properly, false if they didn't.

void Neo::PostProcessor::sendUniforms ( )

protected

void Neo::PostProcessor::set2D	(	unsigned int	w,
		unsigned int	h
	)

protected

void Neo::PostProcessor::setFloatUniformValue	(	const char *	name,
		float	value
	)

Sets the value of a uniform with the type float.

Parameters

name	The name of the uniform. This is the same name given when calling MPostProcessor::addFloatUniform().
value	The value to apply.

void Neo::PostProcessor::setIntUniformValue	(	const char *	name,
		float	value
	)

Sets the value of a uniform with the type int.

Parameters

name	The name of the uniform. This is the same name given when calling MPostProcessor::addIntUniform().
value	The value to apply.

void Neo::PostProcessor::setResolutionMultiplier ( float res )

inline

Sets the current resolution multiplier.

For this value to apply you need to call MPostProcessor::eraseTextures() and MPostProcessor::updateResolution().
This value is multiplied with the screen resolution, that means that value = 1.0 is the full resolution and value = 0.5 is the half of the full resolution etc.

Parameters

res	The new resolution multiplier.

void Neo::PostProcessor::setShaderPath	(	const char *	vertPath,
		const char *	fragPath
	)

Sets the path to the vertex shader and the fragment shader without loading them.

Parameters

vertPath	The path to the vertex shader.
fragPath	The path to the fragment shader.

void Neo::PostProcessor::updateResolution ( )

Updates the color and depth texture to fit the current screen/window resolution. Needs to be called after MPostProcessor::eraseTextures()!

Member Data Documentation

unsigned int Neo::PostProcessor::m_BufferID

protected

unsigned int Neo::PostProcessor::m_ColourTexID

protected

unsigned int Neo::PostProcessor::m_DepthTexID

protected

unsigned int Neo::PostProcessor::m_fragShad

protected

String Neo::PostProcessor::m_fragShadPath

protected

unsigned int Neo::PostProcessor::m_fx

protected

int Neo::PostProcessor::m_Resolution

protected

float Neo::PostProcessor::m_ResolutionMultiplier

protected

Vector2 Neo::PostProcessor::m_texCoords[4]

protected

vector<uintptr_t> Neo::PostProcessor::m_UniformList

protected

Vector2 Neo::PostProcessor::m_vertices[4]

protected

unsigned int Neo::PostProcessor::m_vertShad

protected

String Neo::PostProcessor::m_vertShadPath

protected

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

PostProcessor.h

Classes

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation