A Render Pass that stores attributes for later deferred shading. More...

#include <attributepass.h>

Public Member Functions
void	render () override
	Uses the input data to generate the output. More...

void	cleanup () override
	Resets the Render Pass to the state after creation but before initialization. More...

void	addObjectInput (VaoChannel &vaoChannel)
	Adds a model to the geometry input list. More...

void	removeObjectInput (VaoChannel &vaoChannel)
	Removes a model from the geometry input list. More...

void	clearObjectInput ()
	Removes all models from the geometry input list.

void	setDepthMapInput (TextureChannel &textureChannel)
	Sets the depth map that shall be used during rendering. More...

TextureChannel &	getNormalMapOutput ()
	Returns the normal map. More...

bool	normalMapToScreen ()
	Changes the output mode. The normal map is now drawn onto the screen. More...

TextureChannel &	getColorMapOutput ()
	Returns the color map. More...

bool	colorMapToScreen ()
	Changes the output mode. The color map is now drawn onto the screen. More...

void	removeInput () override
	Removes all input channels except for VaoChannels. If the Render Pass uses VaoChannels as input use the provided clearObjectInput() function to remove all VaoChannels.

void	updateResolution () override
	Must be called after the screen resolution has changed. More...

void	linkSplatScale (float &scale)
	Links the splat scale. More...

Public Member Functions inherited from RenderPass
virtual	~RenderPass ()
	Calls cleanup() More...

Static Public Member Functions
static void	linkVpMat (QMatrix4x4 &vp)
	Links the view projection matrix that shall be used during rendering. More...

static void	linkVMat (QMatrix4x4 &v)
	Links the view matrix that shall be used during rendering. More...

static void	linkPointSizeCoeff (float &coeff)
	Links the point size coefficient. More...

Static Public Member Functions inherited from RenderPass
static void	cleanupHelpers ()
	Removes helper variables. More...

Additional Inherited Members
Protected Member Functions inherited from RenderPass
template<class C >
bool	helperMultiChannelContains (std::list< C * > &list, C &channel)

template<class C >
void	helperMultiChannelAdd (std::list< C * > &list, C &channel)

template<class C >
bool	helperMultiChannelRemove (std::list< C * > &list, C &channel)

template<class C >
void	helperMultiChannelClean (std::list< C * > &list)

template<class C >
void	helperMultiChannelClear (std::list< C * > &list)

Static Protected Member Functions inherited from RenderPass
static bool	loadShader (std::string &path, GLuint id)

static bool	noGlErrors ()

static bool	checkFbo ()

static void	drawUnitQuad ()

Detailed Description

A Render Pass that stores attributes for later deferred shading.

This Render Pass takes a depth map and the geometry as input. It creates a color map and a normal map. The geometry's colors and normals are used. Using the given depth map, all visible geometry's attributes are summed and stored into the output. A normalization using the alpha values has to be done before using the stored color and normal values.

Member Function Documentation

void AttributePass::addObjectInput ( VaoChannel & vaoChannel )

Adds a model to the geometry input list.

Parameters

vaoChannel The channel containing the geometry.

void AttributePass::cleanup ( )

overridevirtual

Resets the Render Pass to the state after creation but before initialization.

Might use OpenGL calls. If no other instances of this Render Pass are currently initialized the shader program is removed from the GPU.

Implements RenderPass.

bool AttributePass::colorMapToScreen ( )

Changes the output mode. The color map is now drawn onto the screen.

Might use OpenGL calls. Unlike in other Render Passes, the output channels remain active. Further computations on these channels have to be prevented manually if not needed (call removeInput on Render Passes that used the output channels).

Returns: Returns false if the output to the screen could not be set up properly.

RenderPass::TextureChannel & AttributePass::getColorMapOutput ( )

Returns the color map.

Might use OpenGL calls.

Returns: A channel containing the generated color map.

RenderPass::TextureChannel & AttributePass::getNormalMapOutput ( )

Returns the normal map.

Might use OpenGL calls.

Returns: A channel containing the generated normal map.

void AttributePass::linkPointSizeCoeff ( float & coeff )

static

Links the point size coefficient.

This value can be generated by the Camera. Does not copy the value. The responsibility for deletion remains at the caller.

Parameters

coeff The coefficient. Must point to a valid float whenever render() is called.

void AttributePass::linkSplatScale ( float & scale )

Links the splat scale.

The higher the value the bigger the drawn splats. Should be the same as the value used for generating the depth map. A value of 1 leads to no splat scaling. Does not copy the value. The responisbility for deletion remains at the caller.

Parameters

scale The scaling coefficient. Must poit to a valid float whenever render() is called.

void AttributePass::linkVMat ( QMatrix4x4 & v )

static

Links the view matrix that shall be used during rendering.

Does not copy the matrix. The responsibility for deletion remains at the caller.

Parameters

v	The view matrix. Must point to a valid matrix whenever render() is called.

void AttributePass::linkVpMat ( QMatrix4x4 & vp )

static

Links the view projection matrix that shall be used during rendering.

Does not copy the matrix. The responsibility for deletion remains at the caller.

Parameters

vp	The view projection matrix. Must point to a valid matrix whenever render() is called.

bool AttributePass::normalMapToScreen ( )

Changes the output mode. The normal map is now drawn onto the screen.

Might use OpenGL calls. Unlike in other Render Passes, the output channels remain active. Further computations on these channels have to be prevented manually if not needed (call removeInput on Render Passes that used the output channels).

Returns: Returns false if the output to the screen could not be set up properly.

void AttributePass::removeObjectInput ( VaoChannel & vaoChannel )

Removes a model from the geometry input list.

Parameters

vaoChannel The channel containing the geometry that shall not be rendered anymore.

void AttributePass::render ( )

overridevirtual

Uses the input data to generate the output.

Uses OpenGL calls if initialized.

Implements RenderPass.

void AttributePass::setDepthMapInput ( RenderPass::TextureChannel & textureChannel )

Sets the depth map that shall be used during rendering.

Uses OpenGL calls.

Parameters

textureChannel The channel containing the depth map.

void AttributePass::updateResolution ( )

overridevirtual

Must be called after the screen resolution has changed.

Might use OpenGL calls.

Implements RenderPass.

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

attributepass.h
attributepass.cpp

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation