LightPass Class Reference

A Render Pass that displays yellow squares at the passed locations. More...

#include <lightpass.h>

Inherits RenderPass.

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 light model to the geometry input list. More...
void	removeObjectInput (VaoChannel &vaoChannel)
	Removes a light model from the geometry input list. More...
void	clearObjectInput ()
	Removes all light models from the geometry input list.
void	setDepthMapInput (TextureChannel &textureChannel)
	Sets the depth map that shall be used during rendering. More...
TextureChannel &	getImageOutput ()
	Returns the image of the lights. More...
bool	imageToScreen ()
	Changes the output mode. The image of the lights is now drawn onto the screen. More...
void	removeInput ()
	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...
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 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 displays yellow squares at the passed locations.

Can be used to display the point light sources. Uses a given z-Buffer for visibility calculations.

Member Function Documentation

void LightPass::addObjectInput

(

VaoChannel &

vaoChannel

)

Adds a light model to the geometry input list.

Parameters

vaoChannel

The channel containing the light model.

void LightPass::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.

RenderPass::TextureChannel & LightPass::getImageOutput

(

)

Returns the image of the lights.

Might use OpenGL calls.

Returns

A channel containing the image.

bool LightPass::imageToScreen

(

)

Changes the output mode. The image of the lights is now drawn onto the screen.

Might use OpenGL calls.

Returns

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

void LightPass::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.

void LightPass::removeObjectInput

(

VaoChannel &

vaoChannel

)

Removes a light model from the geometry input list.

Parameters

vaoChannel

The channel containing the light model that shall not be rendered anymore.

void LightPass::render ( )

overridevirtual

Uses the input data to generate the output.

Uses OpenGL calls if initialized.

Implements RenderPass.

void LightPass::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 LightPass::updateResolution ( )

overridevirtual

Must be called after the screen resolution has changed.

Might use OpenGL calls.

Implements RenderPass.

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

• lightpass.h
• lightpass.cpp