VisibilityPass Class Reference

A Render Pass that just fills a depth buffer. More...

#include <visibilitypass.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 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.
TextureChannel &	getDepthMapOutput ()
	Returns the depth buffer. More...
bool	depthMapToScreen ()
	Changes the output mode. The depth map 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...
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 just fills a depth buffer.

This Render Pass takes geometry as input and renders the z-values into a depth buffer.

Member Function Documentation

void VisibilityPass::addObjectInput

(

VaoChannel &

vaoChannel

)

Adds a model to the geometry input list.

Parameters

vaoChannel

The channel containing the geometry.

void VisibilityPass::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 VisibilityPass::depthMapToScreen

(

)

Changes the output mode. The depth map 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.

RenderPass::TextureChannel & VisibilityPass::getDepthMapOutput

(

)

Returns the depth buffer.

Might use OpenGL calls.

Returns

A channel containing the depth values.

void VisibilityPass::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 VisibilityPass::linkSplatScale

(

float &

scale

)

Links the splat scale.

The higher the value the bigger the drawn splats. 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 VisibilityPass::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 VisibilityPass::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 VisibilityPass::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 VisibilityPass::render ( )

overridevirtual

Uses the input data to generate the output.

Uses OpenGL calls if initialized.

Implements RenderPass.

void VisibilityPass::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:

• visibilitypass.h
• visibilitypass.cpp